O&m 930e-2 A30224-Up Cead006600
O&m 930e-2 A30224-Up Cead006600
O&m 930e-2 A30224-Up Cead006600
Operators and
maintenance personnel must read and understand this manual before operating
or maintaining this machine.
This manual should be kept in or near the machine for reference, and periodically
reviewed by all personnel who will come into contact with it.
This material is proprietary to Komatsu Mining Systems, Inc. and is not to be reproduced, used, or disclosed except
in accordance with written authorization from Komatsu Mining Systems, Inc.
It is the policy of the Company to improve products whenever it is possible and practical to do so. The Company
reserves the right to make changes or add improvements at any time without incurring any obligation to install
such changes on products sold previously.
Because of continuous research and development, periodic revisions may be made to this publication. Customers
should contact their local distributor for information on the latest revision.
CALIFORNIA
Proposition 65 Warning
Diesel engine exhaust, some of its constituents, and certain vehicle
components contain or emit chemicals known to the State of
California to cause cancer, birth defects or other reproductive harm.
CALIFORNIA
Proposition 65 Warning
Battery posts, terminals and related accessories contain lead and
lead compounds, chemicals known to the State of California to
cause cancer and birth defects or other reproductive harm.
Wash hands after handling.
NOTES:
EMISSION CONTROL WARRANTY
1. Products Warranted
Komatsu America International Company, Komatsu Mining Systems Inc. and Komatsu Utility Corporation (collectively “Komatsu”) produce and/or
market products under brand names of Komatsu, Dresser, Dressta, Haulpak and Galion. This emissions warranty applies to new engines bearing the
Komatsu name installed in these products and used in Canada in machines designed for industrial off-highway use. This warranty applies only to
these engines produced on or after January 1, 2000. This warranty will be administered by Komatsu distribution in Canada.
2. Coverage
Komatsu warrants to the ultimate purchaser and each subsequent purchaser that the engine is designed, built and equipped so as to conform, at the
time of sale by Komatsu, with all U.S. Federal emission regulations applicable at the time of manufacture and that it is free from defects in
workmanship or material which would cause it not to meet these regulations within five years or 3,000 hours of operation, whichever occurs first, as
measured from the date of delivery of the engine to the ultimate purchaser.
3. Limitations
Failures, other than those resulting from defects in materials or workmanship, are not covered by this warranty. Komatsu is not responsible for
failures or damage resulting from what Komatsu determines to be abuse or neglect, including, but not limited to: operation without adequate coolant
or lubricants; over fueling; over speeding; lack of maintenance of lubricating, cooling or intake systems; improper storage, starting, warm-up, run-in
or shutdown practices; unauthorized modifications of the engine. Komatsu is also not responsible for failures caused by incorrect fuel or by water,
dirt or other contaminants in the fuel. Komatsu is not responsible for non-engine repairs, “downtime” expense, related damage, fines, all business
costs or other losses resulting from a warrantable failure.
This warranty, together with the express commercial warranties, are the sole warranties of Komatsu. THERE ARE NO OTHER
WARRANTIES, EXPRESS OR IMPLIED, OR OF MERCHANTABILITY OR FITNESS FOR A PARTICUALR PURPOSE.
1. Produits garantis:
Komatsu America International Company, Komatsu Mining Systems Inc. et Komatsu Utility Corporation (collectivement Komatsu) produisent et/ou font la
mise en marché de produits portant les noms de marque Komatsu, Dresser, Dressta, Haulpak et Galion. Cette garantie sur les émissions s’applique à tous les
nouveaux moteurs portant le nom Komatsu, installés dans ces produits et utilisés au Canada dans des machines conçues pour utilisation industrielle non-
routière. Cette garantie s’applique seulement sur les moteurs produits à partir du 1er Janvier 2000. Cette garantie sera administrée par la distribution de
Komatsu au Canada .
2. Couverture:
Komatsu garantit à l’acheteur ultime et chaque acheteur subséquent que le moteur est conçu, construit et équipé en toute conformité, au moment de la vente
par Komatsu, avec toutes les Réglementations fédérales américaines sur les émissions applicables au moment de la fabrication et qu’il est exempt de défauts
de construction ou de matériaux qui auraient pour effet de contrevenir à ces réglementations en dedans de 5 ans ou 3000 heures d’opération, mesuré à partir
de la date de livraison du moteur au client ultime.
3. Limitations:
Les bris, autres que ceux résultant de défauts de matériaux ou de construction, ne sont pas couverts par cette Garantie. Komatsu n’est pas responsable pour
bris ou dommages résultant de ce que Komatsu détermine comme étant de l’abus ou négligence, incluant mais ne se limitant pas à: l’opération sans
lubrifiants ou agent refroidissants adéquats; la suralimentation d’essence; la survitesse; le manque d’entretien des systèmes de lubrification, de
refroidissement ou d’entrée; de pratiques non-propices d’entreposage, de mise en marche, de réchauffement, de conditionnement ou d’arrêt; les
modifications non-autorisées du moteur. De plus, Komatsu n’est pas responsable de bris causés par de l’essence inadéquate ou de l’eau, des saletés ou autres
contaminants dans l’essence. Komatsu n’est pas responsable des réparations non-reliées au moteur, des dépenses encourues suite aux temps d’arrêts, des
dommages relatifs, amendes, et de tout autre coût d’affaires ou autres pertes résultant d’un bris couvert par la garantie.
Cette garantie, ainsi que les garanties expresses commerciales, sont les seules garanties de Komatsu. IL N’Y A AUCUNE AUTRE
GARANTIE, EXPRESSE OU SOUS -ENTENDUE, MARCHANDABLE OU PROPICE A UNE UTILISATION PARTICULIÈRE.
DEG. BTDC
KOMATSU LTÉE
FABRIQUÉ AU JAPON
FOREWORD
This manual is written for use by the operator and/or the service technician and is designed to help these persons to
become fully knowledgeable of the truck and all its systems in order to keep it operating safely and efficiently.
All operators and maintenance personnel should read and understand the materials in this manual before operating
the truck or performing maintenance and/or operational checks on the truck. All safety notices, warnings and cautions
should be understood and followed when operating or accomplishing repairs on the truck.
The first section is an Introduction to the manual and contains a Table of Contents to locate specific areas of interest.
Other sections include Safety, Operation, Maintenance, Specifications, and Optional Equipment.
The illustrations used in this manual are TYPICAL of the component shown and may not be an exact reproduction of
what is found on the truck.
A product identification plate is located on the frame in front of the right side front wheel and designates the Truck
Model Number, Product Identification Number (vehicle serial number), and Maximum G.V.W. (Gross Vehicle Weight)
rating.
The KOMATSU Truck Model designation consists of three numbers and one letter (i.e. 930E).
The three numbers represent the basic truck model.
The letter “M”, when present, designates a Mechanical drive system;
The letter “E”, when present, designates an Electrical wheel motor drive system.
The Product Identification Number (vehicle serial number) contains information which will identify the original
manufacturing bill of material for this unit. This complete number will be necessary for proper ordering of many service
parts and/or warranty consideration.
The Gross Vehicle Weight (GVW) is what determines the load on the drive train, frame, tires, and other components.
The vehicle design and application guidelines are sensitive to the total maximum Gross Vehicle Weight (GVW) and
this means the TOTAL WEIGHT: the Empty Vehicle Weight + the fuel & lubricants + the payload.
To determine allowable payload:
Service all lubricants for proper level and fill fuel tank of empty truck (which includes all accessories, body liners,
tailgates, etc.) and then weigh truck.
Record this value and subtract from the GVW rating. The result is the allowable payload.
NOTE: Accumulations of mud, frozen material, etc. become a part of the GVW and reduces allowable payload. To
maximize payload and to keep from exceeding the GVW rating, these accumulations should be removed as often as
practical.
Exceeding the allowable payload will reduce expected life of truck components.
Introduction - Section 1 OM1024.1
Page 1-2
TABLE OF CONTENTS
SUBJECT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SECTION / PAGE
INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SECTION 1
Foreword . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
ALERTS Page - a description of the DANGER, WARNING, and CAUTION symbols used in this manual. . . . 1-2
TABLE OF CONTENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Truck Model Illustration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
About This Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7
STANDARD CHARTS and TABLES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9 through 1-14
SAFETY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SECTION 2
Safety records of most organizations will show that the greatest percentage of accidents are caused by unsafe acts
of persons. The remainder are caused by unsafe mechanical or physical conditions. Report all unsafe conditions to
the proper authority. These safety rules are provided as a guide for the Komatsu truck operator.
However, local conditions and regulations may add many more to this list.
OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SECTION 3
This portion of the manual covers Identification, location,and operation of the controls, switches, and indicators in the
Operator’s Cab and use / function of these controls, switches, and indicators.
OPERATING INSTRUCTIONS
Preparing For Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Safety Is Thinking Ahead . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
At The Truck - Ground Level Walk-Around Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
ENGINE START-UP SAFETY PRACTICES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
AFTER ENGINE HAS STARTED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5
MACHINE OPERATION SAFETY PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6
MACHINE OPERATION ON THE HAUL ROAD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6
STARTING ON A GRADE WITH A LOADED TRUCK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7
PASSING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7
LOADING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7
DUMPING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-8
TOWING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9
SAFE PARKING PROCEDURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10
NORMAL ENGINE SHUTDOWN PROCEDURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10
Introduction - Section 1 OM1024.1
Page 1-4
MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SECTION 4
This portion of the manual pertains mainly to the periodic Lubrication and Service required to keep the truck operating
at its design potential. Routine lubrication and maintenance procedures are provided in this section. For major repairs,
refer to the appropriate section in the Truck Service Manual.
Refer to the engine manufacturer’s service manual when servicing the engine.
SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SECTION 5
This portion of the manual covers major component descriptions and truck specifications.
Major Component Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3
The front cover of this manual includes a Form Number. This Form No. should be referenced when ordering additional
copies of this manual, or for any other correspondence regarding the coverage in this manual.
Direct all inquiries to:
Datakom Publishing Corporation
Peoria Operations
P.O. Box 240
Peoria, IL 61650-0240
(309)-672-7072 – FAX
This first section is an Introduction to the manual and contains a Table of Contents to locate specific areas of interest.
Other sections include Safety, Operation, Maintenance, Specifications, and Optional Equipment.
When searching for a specific area of interest, go first to the Table of Contents to locate the Section in which the
subject might generally be included. Then, go to that Section of the Table of Contents to find a Subject description
that most closely describes the specific area of interest to find a page number and go to that page.
Section Numbers and Page Numbers are located at the top, outside corner of the page.
At the top, inside corner of the page is a document (module) number. If there is ever a question regarding the
information in a particular Section, refer to the document (module) number, the manual Form No., and use the address
shown above to correspond. If there is a date (month/year) behind the document (module) number, that indicates the
latest revision date of that page.
The illustrations used in this manual are TYPICAL of the component shown and may not be an exact reproduction of
what is found on the truck.
This manual shows dimensioning of U.S. standard and metric (SI) units throughout. All references to “Right”, “Left”,
“Front”, or “Rear” are made with respect to the operator’s normal seated position, unless specifically stated otherwise.
When assembly instructions are provided without references to torque values, standard torque values should be
assumed. Standard torque requirements are shown in torque charts on the following pages of this section, and in the
General Information section of the truck service manual. Individual torques when provided in the text are in bold face
type, such as 100 ft.lbs. (135 N.m) torque. All torque specifications have ± 10% tolerance unless otherwise specified.
Introduction - Section 1 OM1024.1
Page 1-8
NOTES
OM1024.2 Introduction - Section 1
Standard Charts and Tables Page 1-9
TABLE I
STANDARD TORQUE CHART
SAE HEX HEAD CAPSCREW AND NUT ASSEMBLY
(LUBRICATED THREADS)
TOLERANCES ± 10%
GRADE 5 GRADE 8
CAP- TORQUE – GRADE 5 TORQUE – GRADE 8 TORQUE – GRADE 5 TORQUE – GRADE 8
CAPSCREW
SCREW
THREAD
THREAD ft. lbs. kg.m N.m ft. lbs. kg.m N.m ft. lbs. kg.m N.m ft. lbs. kg.m N.m
SIZE
SIZE
1/4–20 7 0.97 9.5 10 1.38 13.6 3/4–16 235 32.5 319 335 46.3 454
1/4–28 8 1.11 10.8 11 1.52 14.9 7/8–9 350 48.4 475 500 69.2 678
5/16–18 15 2.07 20.3 21 2.90 28 7/8–14 375 51.9 508 530 73.3 719
5/16–24 16 2.21 22 22 3.04 30 1.0–8 525 72.6 712 750 103.7 1017
3/8–16 25 3.46 34 35 4.84 47 1.0–12 560 77.4 759 790 109.3 1071
3/8–24 30 4.15 41 40 5.5 54 1.0–14 570 78.8 773 800 110.6 1085
7/16–14 40 5.5 54 58 8.0 79 1 1/8–7 650 89.9 881 1050 145 1424
7/16–20 45 6.2 61 62 8.57 84 1 1/8–12 700 96.8 949 1140 158 1546
1/2–13 65 9 88 90 12.4 122 1 1/4–7 910 125.9 1234 1480 205 2007
1/2–20 70 9.7 95 95 13.1 129 1 1/4–12 975 134.8 1322 1580 219 2142
9/16–12 90 12.4 122 125 17.3 169 1 3/8–6 1200 166 1627 1940 268 2630
9/16–18 95 13.1 129 135 18.7 183 1 3/8–12 1310 181 1776 2120 293 2874
5/8–11 125 17.3 169 175 24.2 237 1 1/2–6 1580 219 2142 2560 354 3471
5/8–18 135 18.7 183 190 26.2 258 1 1/2–12 1700 235 2305 2770 383 3756
3/4–10 220 30.4 298 310 42.8 420
1 ft. lbs. = 0.138 kg.m = 1.356 N.m
Introduction - Section 1 OM1024.2
Page 1-10 Standard Charts and Tables
TABLE II - STANDARD ASSEMBLY TORQUE TABLE III - STANDARD METRIC ASSEMBLY TORQUE
for 12-Point, Grade 9, Capscrews CAPSCREW TORQUE TORQUE TORQUE
CAPSCREW TORQUE TORQUE TORQUE SIZE* N.m ft. lbs. kg.m
SIZE* ft. lbs. N.m kg.m M6x1 12 9 1.22
0.250 - 20 12 16 1.7 M 8 x 1.25 30 22 3.06
0.312 - 18 24 33 3.3 M10 x 1.5 55 40 5.61
0.375 - 16 42 57 5.8 M12 x 1.75 95 70 9.69
0.438 - 14 70 95 9.7 M14 x 2 155 114 15.81
0.500 - 13 105 142 14.5 M16 x 2 240 177 24.48
0.562 - 12 150 203 20.7 M20 x2.5 465 343 47.43
0.625 - 11 205 278 28.3 M24 x 3 800 590 81.6
0.750 - 10 360 488 49.7 M30 x 3.5 1600 1180 163.2
0.875 - 9 575 780 79.4 M36 x 4 2750 2028 280.5
1.000 - 8 860 1166 119 * Shank Diameter (mm) x Threads per mm.
1.000 - 12 915 1240 126 This Table represents standard values only.
1.125 - 7 1230 1670 170 Do not use these values to replace torque values which are
1.125 - 12 1330 1800 184 specified in assembly instructions.
1.250 - 7 1715 2325 237
1.250 - 12 1840 2495 254 SUGGESTED* SOURCES FOR
1.375 - 6 2270 3080 313 RUST PREVENTIVE GREASE:
1.375 - 12 2475 3355 342
1.500 - 6 2980 4040 411 • AMERICAN ANTI-RUST GREASE # 3-X from
1.500 - 12 3225 4375 445 Standard Oil Company (also American Oil Co.)
* Shank Diameter (in.) - Threads per in.
• GULF NORUST # 3 from Gulf Oil Company.
This Table represents standard values only.
Do not use these values to replace torque values which are • MOBILARMA 355, Product No. 66705 from
specified in assembly instructions.
Mobil Oil Corporation.
• RUST BAN 326 from Humble Oil Company.
• RUSTOLENE B GREASE from
Sinclair Oil Company.
• RUST PREVENTIVE GREASE - CODE 312 from
the Southwest Grease and Oil Company.
* NOTE: This list represents the current Engineering
approved sources for use in KMS, Peoria Operations,
manufacture. It is not exclusive. Other products may
meet the same specifications of this list.
OM1024.2 Introduction - Section 1
Standard Charts and Tables Page 1-11
TABLE IV TABLE VI
TORQUE CHART FOR JIC 37° SWIVEL NUTS TORQUE CHART FOR
WITH OR WITHOUT O-RING SEAL O-RING BOSS FITTINGS
SIZE TUBE SIZE THREADS TORQUE SIZE TUBE SIZE THREADS TORQUE
CODE (O.D.) UNF – 2B FT. LBS. CODE (O.D.) UNF – 2B FT. LBS.
–2 0.125 0.312–24 4± 1 –2 0.125 0.312–24 4± 2
–3 0.188 0.375–24 8± 3 –3 0.188 0.375–24 5± 2
–4 0.250 0.438–20 12 ± 3 –4 0.250 0.438–20 8± 3
–5 0.312 0.500–20 15 ± 3 –5 0.312 0.500–20 10 ± 3
–6 0.375 0.562–18 18 ± 5 –6 0.375 0.562–18 13 ± 3
–8 0.500 0.750–16 30 ± 5 –8 0.500 0.750–16 24 ± 5
– 10 0.625 0.875–14 40 ± 5 – 10 0.625 0.875–14 32 ± 5
– 12 0.750 1.062–12 55 ± 5 – 12 0.750 1.062–12 48 ± 5
– 14 0.875 1.188–12 65 ± 5 – 14 0.875 1.188–12 54 ± 5
– 16 1.000 1.312–12 80 ± 5 – 16 1.000 1.312–12 72 ± 5
– 20 1.250 1.625–12 100 ± 10 – 20 1.250 1.625–12 80 ± 5
– 24 1.500 1.875–12 120 ± 10 – 24 1.500 1.875–12 80 ± 5
– 32 2.000 2.500–12 230 ± 20 – 32 2.000 2.500–12 96 ± 10
NOTE: Tables such as Table VIII, IX, X, and XI may be used as in the following example:
Example: Convert 975 psi to kilopascals (kPa).
1. Select Table X.
2. Go to PSI row 90, column 7; read 668.8
97 psi = 668.8 kPa.
3. Multiply by 10:
970 psi = 6688 kPa.
4. Go to PSI row 0, column 5; read 34.47
5 psi = 34.47 kPa. Add to step 3.
5. 970 + 5 psi = 6688 + 34 = 6722 kPa.
975 psi = 6722 kPa.
TABLE XIII –
COMMON CONVERSION MULTIPLIERS
GENERAL SAFETY
Safety records of most organizations will show that the greatest percentage of accidents are caused by unsafe acts
of persons. The remainder are caused by unsafe mechanical or physical conditions. Report all unsafe conditions to
the proper authority.
The following safety rules are provided as a guide for the operator. However, local conditions and regulations may
add many more to this list.
SAFETY RULES
• ONLY trained and authorized personnel can operate and maintain the machine.
• Follow all safety rules, precautions and instructions when operating or performing maintenance on the machine.
• When working with another operator or a person on worksite traffic duty, be sure all personnel understand all
hand signals that are to be used.
•
SAFETY FEATURES
• Be sure all guards and covers are in their proper position. Have guards and covers repaired if damaged.
(See Walk-Around Inspection, Operating Instructions - Section 3)
• Learn the proper use of safety features such as safety locks, safety pins, and seat belts, and use these safety
features properly.
• NEVER remove any safety features. ALWAYS keep them in good operating condition.
• Improper use of safety features could result in serious bodily injury or death.
•
UNAUTHORIZED MODIFICATION
• Any modification made to this vehichle without authorization from
Komatsu Mining Systems, Inc. can possibly create hazards.
• Before making any modification, consult the authorized regional Komatsu Mining Systems, Inc. distributor.
Komatsu will not be responsible for any injury or damage caused by any unauthorized modification.
Safety - Section 2 OM2024.1
Page 2-2 General Safety
• Move the shift control lever to the Neutral position (N) and set the parking lever/switch to the PARKING position.
• Lower the dump body, set the dump lever to the FLOAT position.
• Stop the engine. When leaving the machine, always lock everything. Always remember to take the key with you.
If the machine should suddenly move or move in an unexpected way, this may result in serious bodily injury or
death.
SAFETY AT WORKSITE
• When walking to and from the truck, maintain a safe distance from all machines even if the operator is visible.
• Before starting the engine, thoroughly check the area for any unusual conditions that could be dangerous.
• Examine the road surface in the jobsite and determine the best and safest method of operation.
• Choose an area where the ground is as horizontal and firm as possible before carrying out the operation.
• If you need to operate on a road, protect pedestrians and cars by designating a person for worksite traffic duty
or by installing fences around the worksite.
• The operator must check personally the work position, roads to be used, and existence of obstacles before starting
operations.
• Always determine the travel roads in the worksite and maintain them so that it is always safe for the machines
to travel.
• If travel through wet areas is necessary, check the depth and flow of water before crossing the shallow parts.
NEVER be in water which is in excess of the permissible water depth.
FIRE PREVENTION
• Thoroughly remove wood chips, leaves, paper and other flammable things accumulated in the
engine compartment. These could cause a fire.
• Check fuel, lubrication, and hydraulic systems for leaks. Have any leaks repaired.
Wipe up any excess oil, fuel or other flammable fluids.
• Check for flat tires periodically during shift. If truck has been run on a “flat”, it must not be parked in a building
until the tire cools.
If tire must be changed, do not stand in front of rim and locking ring when inflating tire mounted on the machine.
Observers should not be permitted in the area and should be kept away from the side of such tires.
Tire and rim assembly may expode if subjected to excessive heat. Personnel should move to a remote or
protected location if sensing excessively hot brakes, smell of burning rubber or evidence of fire near tire and
wheel area.
If the truck must be approached, such as to fight a fire, those personnel should do so only while facing the
tread area of the tire (front or back), unless protected by use of large heavy equipment as a shield. Stay at
least 50 ft. (15 m) from the tread of the tire.
In the event of fire in the tire and wheel area (including brake fires), stay away from the truck at least 8 hours
or until the tire and wheel are cool.
• Keep serviceable fire fighting equipment at hand. Report used extinguishers for replacement or refilling.
• Always have parking brake applied when the truck is parked and unattended. DO NOT leave truck unattended
while engine is running.
• When parking, park a safe distance from other vehicles as determined by supervisor.
• Stay alert at all times! In the event of an emergency, be prepared to react quickly and avoid accidents. If an
emergency arises, know where to get prompt assistance.
• Check that there is no one near the machine. Be particularly careful to check
behind the machine.
• If necessary, designate a person to check the safety. This is particularly
necessary when traveling in reverse.
• When operating in areas that may be hazardous or have poor visibility,
designate a person to direct worksite traffic.
• Do not allow any one to enter the line of travel of the machine. This rule must be strictly observed even on
machines equipped with a back-up alarm or rear view mirror.
TRAVELING
• When traveling on rough ground, travel at low speed. When changing direction, avoid turning suddenly.
• Lower the dump body and set the dump lever to the FLOAT position when traveling.
• If the engine should stop when the machine is traveling, the emergency steering system will be activated.
Apply the brakes immediately and stop the machine as quickly and safely as possible, and off the haul road, if
possible.
Safety - Section 2 OM2024.1
Page 2-8 General Safety
TRAVELING ON SLOPES
• Traveling on slopes could result in the machine tipping over or slipping.
• Do not change direction on slopes. To ensure safety, go down to level ground before turning.
• Do not travel up and down on grass, fallen leaves, or wet steel plates. These materials may make the machine
slip on even the slightest slope. Take all possible steps to avoid traveling sideways, and always keep the travel
speed low.
• When traveling downhill, use the retarder to reduce speed. Do not turn the steering wheel suddenly. Do not use
the foot brake except in an emergency.
• If the engine should stop on a slope, apply the brakes fully and apply the parking brake to stop the machine.
WHEN DUMPING
• Before starting the dumping operation, check that there is no person or object behind the machine.
• Stop the machine in the correct position, and check again that there is no person or object behind the machine.
Give the determined signal, then slowly operate the dump body. If necessary, use blocks for the wheels or position
a flagman.
• When carrying out dumping operations on slopes, the machine stability will become poor and there is danger
that it may tip over. Always carry out such operations extremely carefully.
• Do not travel with the dump body raised.
WHEN LOADING
• Check that the surrounding area is safe, stop the machine in the correct loading position, then load the body
uniformly.
• Do not leave the operator’s seat during the loading operation.
TOWING
BATTERY
WARNING TAG
• If others start the engine or operate the controls while you are performing service or lubrication, you could suffer
serious injury or death.
• ALWAYS attach the WARNING TAG to the control lever in the operator’s cab to alert others that you are working
on the machine. Attach additional warning tags around the machine, if necessary.
• These tags are available from your Komatsu distributor. (Part No. 09963-03000)
PROPER TOOLS
• Use only tools suited to the task.
Using damaged, low quality, faulty, or makeshift tools could cause personal injury.
DURING MAINTENANCE
PERSONNEL
• Only authorized personnel can service and repair the machine. Extra precaution should be used when grinding,
welding, and using a sledge-hammer.
ATTACHMENTS
• Place attachments that have been removed from the machine in a safe place so that they
do not fall. If they fall on you or others, serious injury could result.
• Spilled oil or grease, or scattered tools or broken pieces are dangerous because
they may cause you to slip or trip.
Always keep your machine clean and tidy.
• If water gets into the electrical system, there is danger that the machine may not
move or may move unexpectedly.
Do not use water or steam to clean the sensors, connectors, or the inside of the
operator’s compartment.
• If it is necessary to add water to the radiator, stop the engine and allow the engine
and radiator to cool down before adding the water.
• Slowly loosen the cap to relieve pressure before removing the cap.
USE OF LIGHTING
When checking fuel, oil, coolant, or battery electrolyte, always use lighting with
anti-explosion specifications. If such lighting equipment is not used, there is
danger or explosion.
• Immediately after stopping operations, the engine cooling water and oil at all parts
are at high temperature and under high pressure.
In this condition, if the cap is removed, or the oil or water are drained, or the filters
are replaced, it may result in burns or other injury. Wait for the temperature to go
down, then carry out the inspection and maintenance in accordance with the
procedures given in this manual.
WASTE MATERIALS
• Never dump waste oil in a sewer system, rivers, etc.
• Always put oil drained from your machine in containers. Never drain oil directly
on the ground.
• Obey appropriate laws and regulations when disposing of harmful objects such
as oil, fuel, coolant, solvent, filters, batteries, and others.
OM2024.1 Safety - Section 2
General Safety Page 2-15
TIRES
HANDLING TIRES
If tires are not used under the specified conditions, they may overheat and burst or be cut and burst by sharp stones
on rough road surfaces. This may lead to serious injury or damage.
To maintain safety, always keep to the following conditions:
• Inflate the tires to the specified pressure. Abnormal heat is generated particularly when the inflation pressure is
too low.
• Use the specified tires.
The tire inflation pressure and permissible speeds are general values. The actual values may differ depending on
the type of tire and the condition under which they are used. For details, please consult the tire manufacturer.
If the tires become hot, a flammable gas is produced, and this may ignite. It is particularly dangerous if the tires
become overheated when the tires are under pressure. If the gas generated inside the tire ignites, the internal pressure
will suddenly rise, and the tire will explode, and this may lead to serious personal injury. Explosions differ from
punctures or tire bursts, because the destructive force is extremely large. Therefore, the following operations are
strictly prohibited when the tire is under high internal pressure:
• Welding the rim
• Building fires or carrying out welding near the wheel or tire.
If the proper procedure for carrying out maintenance or replacement of the wheel or tire is not used, the wheel or tire
may burst and cause serious injury or damage. When carrying out such maintenance, please consult the authorized
regional Komatsu Mining Systems, Inc. distributor, or the tire manufacturer.
Any operating fluid, such as hydraulic oil or brake fluid escaping under pressure, can have sufficient force
to enter a person’s body by penetrating the skin. Serious injury and possibly death may result if proper
medical treatment by a physician familiar with this injury is not received immediately.
Do not stand in front of rim and locking ring when inflating tire mounted on the machine. Observers should
not be permitted in the area and should be kept away from the side of such tires.
Do not weld or apply heat on the rim assembly with the tire mounted on the rim. Resulting gases inside the
tire may ignite, causing explosion of tire and rim.
14. Only a qualified operator or experienced maintenance personnel who are also qualified in operation should move
the truck under its own power in the repair facility or during road testing after repairs are complete.
Safety - Section 2 OM2024.1
Page 2-18 General Safety
Before opening any cabinets or touching a grid element or a power cable, the engine must be shutdown.
1. Before shutting down the engine, verify the status of all the drive system warning lights on the overhead display
panel (Figure 3-7, Section 3 - Operation). Use the Lamp Test Switch (8, Figure 3-7, Section 3 - Operation) to
verify that all lamps are functioning properly.
If any of the RED Drive System warning lights remain ON, do not attempt to open any cabinets, disconnect any
cables, or reach inside the retarder grid cabinet without a trained drive system technician present - even if engine
is shut down.
Only qualified personnel, specifically trained for servicing the AC Drive System, should perform this service.
2. If all red drive system warning lights are off, follow the “Normal Engine Shutdown Procedure”.
3. After the engine has been stopped for at least five (5) minutes, inspect the LINK VOLTAGE lights on the exterior
of the main control cabinet and back wall of the operator’s cab (DID panel). If all lights are OFF, the retard grids,
wheel motors, alternator, and power cables connecting these devices are safe to work on.
4. Locate the “GF” Cut-out switch in the access panel on the left side of the main control cabinet. Place the switch
in the “Alternator Cutout” position. This will prevent the alternator from re-energizing and creating system voltage,
until the switch is returned to its former position.
5. The blower motors, control cabinet and power cables connecting these devices are still unsafe. To establish that
these devices are safe, open the top control cabinet cover and inspect the red lights on the blower control panel.
If these lights are OFF, the blower system, blower power cables and remainer of the control cabinet is safe to
work on.
If these lights are ON, refer to steps 11 – 12.
6. Before welding on the truck, disconnect all electrical harnesses from the Engine Control System (ECS) inside
the electrical cabinet behind the operator’s cab. Also, disconnect the ground strap from the ECS.
7. Do not weld on the rear of the control cabinet! The metal panels on the back of the cabinet are part of
capacitors and cannot be heated.
8. Do not weld on the retard grid exhaust louvers - they are made of stainless steel.
Some power cable panels throughout the truck are also made of aluminum, or stainless steel. They must be
repaired with the same material, or the power cables may be damaged.
9. Power cables must be cleated in wood or other non-ferrous materials. Do not repair cable cleats by encircling
the power cables with metal clamps or hardware. Always inspect power cable insulation prior to servicing the
cables and prior to returning the truck to service. Discard cables with broken insulation.
10. Power cables and wiring harnesses should be protected from weld spatter and heat.
Always fasten the welding machine ground (-) lead to the piece being welded; the grounding clamp MUST BE
ATTACHED AS NEAR AS POSSIBLE to the weld area.
Always avoid laying welding cables over or near the vehicle electrical harnesses. Welding voltage could be
induced into the electrical harness and possibly cause damage to components.
Before doing any welding on the truck, always disconnect the battery charging alternator lead wire and isolate
electronic control components before making welding repairs.
In addition, always disconnect the positive and negative battery cables of the vehicle. Failure to do so may
seriously damage the battery and electrical equipment.
Never allow welding current to pass through ball bearings, roller bearings, suspensions, or hydraulic cylinders.
Safety - Section 2 OM2024.1
Page 2-20 General Safety
11. If the red lights on the exterior of the control cabinet and/or the back wall of the operator’s cab continue to be
illuminated after following the above procedure, a fault has occurred.
Leave all cabinet doors in place, do not touch the reatrd grid elements, do not disconnect any power cables, or
use them as hand or foot holds.
Notify the KMS factory representative immediately. Only qualified personnel, specifically trained for servicing
the AC Drive System, should perform this service.
12. If the red lights on the blower control panel are illuminated after following the above procedure, a fault has
occurred. Reinstall the control cabinet panel. Do not perform maintenance on the blower control panel, blower
motor power cables.
Notify the KMS factory representative immediately. Only qualified personnel, specifically trained for servicing
the AC Drive System, should perform this service.
13. Replace all covers and doors and place the “GF” cutout switch and battery disconnect switches in their original
positions, and re-connect all harnesses prior to restarting the truck.
Leave the drive system in the REST position until the truck is to be moved.
OM2024.2 Safety - Section 2
Warnings and Cautions Page 2-21
A warning instruction is applied below the Parking Brake and the Rear Wheel Brake Lock switches, which are located
to the right of the steering column on the instrument panel. Pushing the top of the rocker-style switch turns the function
ON, pushing the bottom, turns it OFF.
The Parking Brake is spring applied and hydraulically released. It is designed to hold a stationary truck
when the engine is shutdown and keyswitch is turned “Off”. The truck must be completely stopped before
applying the parking brake, or damage may occur to parking brake.
To apply the parking brake, press the rocker switch toward the “On” symbol. To release the parking brake, press the
rocker switch toward the “Off”symbol. When the keyswitch is “On” and Parking Brake switch is applied, the Parking
Brake indicator light (A3, Overhead Panel) will be illuminated.
NOTE: Do not use the parking brake at shovel or dump. With keyswitch “on” and engine running, sudden shock
caused by loading or dumping could cause the system’s motion sensor to RELEASE the park brake.
The Wheel Brake Lock switch is for holding the truck while parked at the shovel during loading, or while
dumping. It applies the rear service brakes only. If the brake treadle valve does not operate, apply this
brake to stop the truck. Do NOT use this brake as a parking brake when leaving the truck. With engine shut
down, the hydraulic system will eventually bleed down, releasing the service brakes.
Attached to the exterior of both battery compartments is a danger
plate. This plate stresses the need to keep from making any sparks
near the battery. When another battery or 24VDC power source is
used for auxiliary power, all switches must be “Off” prior to making
any connections. When connecting auxiliary power cables, posi-
tively maintain correct polarity; connect the positive (+ ) posts
together and then connect the negative (-) lead of the auxiliary
power cable to a good frame ground. Do not connect to the
negative posts of the truck battery or near the battery box. This
hookup completes the circuit but minimizes danger of sparks near
the batteries.
Sulfuric acid is corrosive and toxic. Use proper safety gear, gog-
gles, rubber gloves and rubber apron when handling and servicing
batteries. Get proper medical help immediately, if required.
A CAUTION decal is also attached to the door of the rear hatch cover to alert personnel that HOT EXHAUST AIR is
present and may cause injury.
This CAUTION decal is also placed around the Retarding Grid Cabinet.
The following display illustrates a variety of decals which are mounted on deck mounted cabinets, housings, and
structures which must be lifted in a specific manner, and from specific points, in order to safely move or lift any of
these structures. If any of these decals are damaged or defaced, so that it is no longer be legible, it should be replaced
immediately. Maintenance personnel must follow these lifting instructions.
OM2024.2 Safety - Section 2
Warnings and Cautions Page 2-29
The Lubrication Chart is mounted on the right hand side of the radiator grille structure.
Refer to the “Lubrication and Service” section in this manual for more complete lubrication instructions.
Safety - Section 2 OM2024.2
Page 2-30 Warnings and Cautions
NOTES
OM3026.1 Operation - Section 3
Operating Instructions Page 3-1
OPERATING INSTRUCTIONS
PREPARING FOR OPERATION
The safest trucks are those which have been properly prepared for operation. At the beginning of each shift, a careful
check of the truck should be made by the operator before attempting to start the engine.
1. Start at left front of truck. While performing the walk around inspection, visually inspect all lights and safety
equipment for external damage from rocks or misuse. Make sure lenses are clean and unbroken.
Empty the dust pans on the left side air cleaner assemblies. Be sure battery box covers are in place and secure.
2. Move behind the front of the left front tire, inspect the hub and brake assemblies for leaks and any abnormal
conditions.
Check that all suspension attaching hardware is secure and inspect mounting key area for evidence of wear.
Check that the suspension extension (exposed piston rod) is correct, and that there are no leaks.
3. With engine stopped, check engine oil level. If dark, turn on service light.
4. Inspect air conditioner belts for correct tension, obvious wear, and tracking. Inspect fan guard for security and
condition. When leaving this point, be sure to turn off service light, if used.
5. Inspect anchor end of steering cylinder for proper greasing and for security.
Operation - Section 3 OM3026.1
Page 3-2 Operating Instructions
START HERE
OM3026.1 Operation - Section 3
Operating Instructions Page 3-3
6. Move outboard of the front wheel, and inspect attaching nuts/studs to be sure all are tight and complete. Check
tires for cuts, damage or “bubbles” and that inflation appears to be correct.
7. Move behind the rear of the front wheel, inspect for leaks at hub or brakes or any unusual conditions. Inspect
wheel speed sensor and harness. Inspect suspension hardware to be sure it is all in place. Inspect live end of
steering cylinder for proper greasing, and for security of all parts. Inspect for any hydraulic leaks.
8. Inspect sight glass on hydraulic tank. With engine stopped and body down, hydraulic fluid must be visible in lower
sight glass.
9. Move on around the hydraulic tank and in front of the rear dual tires, inspect the hoist cylinder for any damage
and leaks, also that lower guard is in place. Inspect both upper and lower hoist cylinder pins for security, and for
proper greasing.
10. Before leaving this position, look under the lower edge of the chassis to be sure the flexible duct that carries the
air from the main blower to the final drive housing is in good condition with no holes or breakage. Also look up
at the main hydraulic pumps to see that there is no leakage or any other unusual condition with pumps or pump
drive shafts.
11. Move on around the dual tires, check to see that all nuts/studs are in place and tight. Inspect wheel for any leakage
that would indicate brake leakage, or wheel motor leakage.
Check dual tires for cuts, damage or “bubbles” and that inflation appears to be correct. If truck has been run on
a “flat”, the tire must be cooled before parking truck inside. Inspect for any rocks that might be lodged between
dual tires, and that rock ejector is in good condition and straight so that it can not damage a tire.
12. Inspect left rear suspension for damage and for correct rod exposure, and that there are no leaks. See that covers
over the chromed piston rod are in good condition and inspect for proper greasing.
13. Open rear hatch cover. Inspect for leaks around the parking brakes, and that there are no rags or tools left behind.
Inspect condition of cooling air exhaust ductwork to be certain that it is intact and that there are no obstructions.
14. While standing in front of rear hatch, look up to see that rear lights are in good condition, along with dual backup
horns. Look up at panhard rod to see that it is getting proper greasing. Also look at both body hinge pins for
greasing and any abnormal condition. Check hoist limit switch and clear any mud/debris from contacts.
15. Perform the same inspection on the right rear suspension as done on the left.
16. Move on around the right dual tires, inspect between the tires for rocks, and for condition of the rock ejector,
inspect the tires for cuts or damage, and for correct inflation.
17. Perform the same inspection for wheel nuts/studs and wheel leaks that was done on the left hand dual wheels.
18. Move in front of right dual tires, and inspect the hoist cylinder the same as was done on the left side.
Check security and condition of bodyup limit switch. Remove any mud/dirt accumulation from switch.
19. Move on around the fuel tank, inspect the fuel quantity gauge, (this should agree with what will show on the gauge
in the cab). Inspect the attaching hardware for the fuel tank at the upper saddles, and then at the lower back of
the tank for the security and condition of the mounts. Check hoist filters for leaks.
20. Move in behind the right front wheel, and inspect the steering cylinder, suspension attaching hardware and
suspension extension, as well as greasing and attaching hardware for the steering cylinder. Inspect the hub and
brakes for leaks and any unusual condition. Inspect wheel speed sensor and harness. Be sure the suspension
protective boot is in good condition.
21. Move out and around the right front wheel, inspect that all nuts/studs are in place and tight.
22. Move in behind the front of the right front wheel, check hub and brakes for leaks and any unusual condition.
Inspect wheel speed sensor and harness. Inspect steering cylinder for security and for proper greasing. Inspect
the engine compartment for any leaks and unusual condition. Inspect the fan guard, and belts also for any rags
or debris behind radiator. Turn work light off, if used, and secure the ladder up and latched.
23. Inspect auto lube system. See Maintenance Section 4 for specific details concerning auto lube system.
24. Move on around to the right front of the truck, drop the air cleaner pans to remove dirt, latch up and secure.
Inspect battery box cover for damage and be sure it is in place and secure.
Operation - Section 3 OM3026.1
Page 3-4 Operating Instructions
25. As you move in front of the radiator, inspect for any debris that might be stuck in front of the radiator and remove
it. Check for any coolant leaks. Inspect all head and fog lights.
26. Before climbing ladder to first level, be sure ground level engine shutdown switch is “ON”. Inspect fire control
actuator to be sure safety pin is in place and plastic tie that prevents accidental actuation is in place and in good
condition. Be sure battery disconnect switches are “ON”. Always use grab rails and ladder when mounting or
dismounting from the truck. Clean ladder and hand rails of any foreign material, such as ice, snow, oil or mud.
Always mount and dismount ladders facing the truck. Never attempt to mount
or dismount while the truck is in motion.
27. Use stairs and handrails while climbing from first level to cab deck.
28. When checking coolant in radiator, use coolant level sight gauge (if equipped) or observe coolant level through
opening in end of hood. If it is necessary to remove radiator cap, shut down engine (if running), and relieve
coolant pressure SLOWLY, before removing radiator cap.
If engine has been running, allow coolant to cool, before removing the fill cap
or draining radiator. Serious burns may result if coolant is not allowed to cool.
29. Inspect covers over retarding grids to be sure latches are in place and secure. Inspect main air inlet to be sure it
is clear. Be sure all cabinet door latches are secure.
30. Move on around the cab to the back, open the doors to the brake cabinet, inspect for leaks. Before latching doors,
turn work lights off, if used.
31. Clean cab windows and mirrors; clean out cab floor as necessary. Insure steering wheel, controls and pedals are
free of any oil, grease or mud.
32. Stow personal gear in cab so that it does not interfere with any operation of the truck. Dirt or trash buildup,
specifically in the operator’s cab, should be cleared. Do not carry tools or supplies in cab of truck or on the deck.
33. Adjust seat and steering wheel so that it is comfortable for use.
34. Read and understand the OPERATOR CONTROLS AND INSTRUMENT PANEL discussion in this section.
Be familiar with all control locations and functions BEFORE operating truck.
1. Always look to the rear before backing the truck. Watch for and obey ground spotter’s hand signals before making
any reverse movements. Sound the warning horn (3 blasts). Spotter should have a clear view of the total area at
the rear of the truck.
2. Operate the truck only while properly seated with seat belt fastened. Keep hands and feet inside the cab
compartment while truck is in operation.
3. Check gauges and instruments frequently during operation for proper readings.
4. Observe all regulations pertaining to the job site’s traffic pattern. Be alert to any unusual traffic pattern. Obey the
spotter’s signals.
5. Match the truck speed to haul road conditions and slow the truck in any congested area. Keep a firm grip on
steering wheel at all times.
6. Do not allow engine to run at “Idle” for extended periods of time.
7. Check parking brake periodically during shift. Use parking brake ONLY for parking. Do not use park brake for
loading / dumping.
Do not attempt to apply parking brake while truck is moving!
Do not use “Brake Lock” or “Emergency Brake” (if equipped) for parking.
With engine stopped, hydraulic pressure will bleed down, allowing brakes to
release!
8. Check brake lock performance periodically for safe loading and dump operation.
9. Proceed slowly on rough terrain to avoid deep ruts or large obstacles. Avoid traveling close to soft edges and
the edge of fill area.
10. Truck operation requires concentrated effort by the driver. Avoid distractions of any kind while operating the truck.
5. Use extreme caution when approaching a haul road intersection. Maintain a safe distance from oncoming vehicles.
6. Maintain a safe distance when following another vehicle. Never approach another vehicle from the rear, in the
same lane, closer than 50 ft. (15 m). When driving on a down grade, this distance should not be less than 100 ft.
(30 m).
7. Do not stop or park on a haul road unless unavoidable. If you must stop, move truck to a safe place, apply parking
brake, and shut down engine before leaving cab. Block wheels securely and notify maintenance personnel for
assistance.
8. Before starting up or down a grade, maintain a speed that will insure safe driving and provide effective retarding
under all conditions. Refer to Grade/Speed decal in operator’s cab.
9. When operating truck in darkness, or when visibility is poor, do not move truck unless all headlights, clearance
lights, and tail lights are on. Do not back truck if backup horn or lights are inoperative. Always dim headlights
when meeting oncoming vehicles.
10. If the “Emergency Steering” light and/or “Low Brake Pressure Warning” light (if equipped) illuminate during
operation, steer the truck immediately to a safe stopping area, away from other traffic if possible. Refer to item
7 above.
11. Check tires for proper inflation periodically during shift. If truck has been run on a “flat”, or under-inflated tire, it
must not be parked in a building until the tire cools.
1. Fully depress the foot-operated retarder/service brake pedal (do NOT use retarder lever) to hold the truck on the
grade. With service brakes fully applied, move the selector switch to a drive position (Forward/Reverse) and
increase engine RPM with throttle pedal.
2. As engine RPM approaches maximum, and operator senses propulsion effort working against the brakes, release
the brakes and let truck movement start. Be sure to completely release the foot-operated retarder/service brake
pedal. As truck speed increases above 3-5 MPH (5-8 KPH) the Propulsion System Control (PSC)will drop
propulsion, if the retarder is still applied. Releasing and reapplying dynamic retarding during a hill start operation
will result in loss of propulsion.
PASSING
1. Do not pass another truck on a hill or blind curve!
2. Before passing, make sure the road ahead is clear. If a disabled truck is blocking your lane, slow down and pass
with extreme caution.
3. Use only the areas designated for passing.
LOADING
1. Pull into the loading area with caution. Remain at a safe distance while truck ahead is being loaded.
2. Do not drive over unprotected power cables.
3. When approaching or leaving a loading area, watch out for other vehicles and for personnel working in the area.
4. When pulling in under a loader or shovel, follow “Spotter” or “Shovel Operator” signals. The truck operator may
speed up loading operations by observing the location and loading cycle of the truck being loaded ahead, then
follow a similiar pattern.
5. When being loaded, operator should stay in truck cab with engine running.
Place Selector Switch in “Neutral” and apply Wheel Brake Lock.
6. When loaded, pull away from shovel as quickly as possible but with extreme caution.
Operation - Section 3 OM3026.1
Page 3-8 Operating Instructions
DUMPING
1. Pull into dump area with extreme caution. Make sure area is clear of persons and obstructions, including overhead
utility lines. Obey signals directed by the spotter, if present.
Avoid unstable areas. Stay a safe distance from edge of dump area.
Position truck on a solid, level surface before dumping.
As body raises, the truck Center of Gravity (CG) will move. Truck must be on
level surface to prevent tipping / rolling!
2. Carefully maneuver truck into dump position. When backing truck into dump position, use only the foot-operated
brake pedal to stop and hold truck; DO NOT rely on Wheel Brake Lock to stop truck; this control is unmodulated
and applies REAR SERVICE BRAKES ONLY.
3. When truck is stopped and in dump position, apply Wheel Brake Lock and move the Selector Switch to the
“Neutral” position.
The dumping of very large rocks (10% of payload, or greater) or sticky material
(loads that do not flow freely from the body) may allow the material to move
too fast and cause the body to move RAPIDLY and SUDDENLY. This sudden
movement may jolt the truck violently and cause possible injury to the operator, and/or damage to the hoist
cylinders, frame, and/or body hinge pins. If it is necessary to dump this kind of material, refer to the CAUTION
in the following procedure:
4. Pull the lever to the rear to actuate hoist circuit. (Releasing the lever anywhere
during “hoist up” will place the body in “hold” at that position.)
5. Raise engine RPM to accelerate hoist speed. Refer to the CAUTION below.
NOTE: Failure to "hoist" the body after making an unsuccessful attempt at lowering the body may result in the dump
body suddenly lowering after the truck has pulled ahead of the material that was previously preventing the body
from lowering.
To Lower Body
(When dumping on flat ground):
It is very likely when dumping on flat ground that the dumped material will build up enough to prevent the body from
lowering. In this case, the truck will have to be driven forward a short distance (just enough to clear the material) before
the body can be lowered.
a. Shift Selector Switch to “Forward”, release Brake Lock, depress Override button and drive just far enough
forward for body to clear material. Stop, shift Selector Switch to “Neutral”, apply Brake Lock.
b. Move hoist lever forward to “down” position and release. Releasing the lever places hoist control valve in the
“float” position allowing the body to return to frame.
NOTE: If dumped material builds up at the rear of the body and the body cannot be lowered, then perform steps "c"
and "d" below:
c. Move hoist lever back to the "hoist" position to fully raise the dump body. Then release the hoist lever so it
returns to the "hold" position.
d. Shift Selector Switch to “Forward”, release Brake Lock, depress Override button and drive forward to clear
the material. Stop, shift Selector Switch to “Neutral”, apply Brake Lock and lower body again.
NOTE: Failure to "hoist" the body after making an unsuccessful attempt at lowering the body may result in the dump
body suddenly lowering after the truck has pulled ahead of the material that was previously preventing the body
from lowering.
10. With body returned to frame, move Selector Switch to “Forward”, release Brake Lock, and
leave dump area carefully.
TOWING
Prior to towing a truck, many factors must be carefully considered. Serious personal injury and/or significant property
damage may result if important safety practices, procedures and preparation for moving heavy equipment are not
observed.
Do not tow the truck any faster than 5 MPH (8 kph).
A disabled machine may be towed after the following MINIMUM precautions have been taken.
1. Shut down engine.
2. If truck is equipped, install hydraulic connections for steering and dumping between towing and towed vehicles.
Check towed vehicle for braking system.
3. Inspect tow bar for adequacy (approximately 1.5 times the gross vehicle weight of truck being towed).
4. Determine that towing vehicle has adequate capacity to both move and stop the towed truck under all conditions.
Operation - Section 3 OM3026.1
Page 3-10 Operating Instructions
TOWING - Continued
5. Protect both operators in the event of tow bar failure.
6. Block disabled truck to prevent movement while attaching tow bar.
7. Release disabled truck brakes and remove blocking.
8. Sudden movement may cause tow bar failure. Smooth and gradual truck movement is preferred.
9. Minimize tow angle at all times - NEVER EXCEED 30o. The towed truck must be steered in the direction of the
tow bar.
a. Press top of switch to the “On” (center position), then press firmly to the “Momentary”
(upper position) and hold this position briefly to activate the 5 Minute Idle Timer (switch is
spring-loaded to return to “On” position when released).
At the SAME time while holding the “Momentary” switch position, turn the Keyswitch
counterclockwise to the “Off” position.
When the engine stops after the 5 minute idle period, the hydraulic bleeddown timer will
be activated and turn off the 24 VDC electric circuits controlled by the keyswitch.
b. When the Engine Shutdown Timer has been activated, the Timer Delay indicator light in the
overhead display panel (C4, Figure 3-7) will illuminate to indicate that the shutdown timing
sequence has been started. The engine will continue to run at Idle RPM for approximately
5 minutes to allow for proper engine cool-down before stopping.
c. After engine has stopped, perform steps 4, 5, and 6, in “NORMAL ENGINE SHUTDOWN PROCEDURE” above.
Operation - Section 3 OM3026.1
Page 3-12 Operating Instructions
NOTES:
OM3026.2 Operation - Section 3
Operator Cab and Controls Page 3-13
HORN BUTTON
The horn (2, Figure 3-2) is actuated by pushing the
button in the center of the steering wheel. Operation of
the horn should be verified before moving the truck.
Observe all local safety rules regarding the use of the
horn as a warning signal device before starting engine
and moving the vehicle.
DYNAMIC RETARDER/SERVICE BRAKE PEDAL Initial propulsion with a loaded truck should begin from
a level surface whenever possible, but when there are
The Dynamic Retarder/Service Brake Pedal (3, Figure circumstances where the starting on a hill or grade
3-1) is a single, foot-operated pedal which controls cannot be avoided, use the following procedure:
both retarding and service brake functions. The first
portion of pedal travel commands retarding effort 1. Fully depress the foot-operated retarder/service
through a rotary potentiometer. The second portion of brake pedal (do NOT use retarder lever) to hold
pedal travel modulates service brake pressure directly the truck on the grade. With service brakes fully
through a hydraulic valve. Thus, the operator must first applied, move the selector switch to a drive posi-
apply, and maintain, full dynamic retarding in order to tion (Forward/Reverse) and increase engine RPM
apply the service brakes. Releasing the pedal returns with throttle pedal.
the brake and retarder to the “off” position. 2. As engine RPM approaches maximum, and opera-
When the pedal is partially depressed, the dynamic tor senses propulsion effort working against the
retarding is actuated. As the pedal is further depressed brakes, release the brakes and let truck move-
to where dynamic retarding is fully applied; the service ment start. Be sure to completely release the
brakes (while maintaining full retarding) are then actu- foot-operated retarder/service brake pedal. As
ated through a hydraulic valve, which modulates pres- truck speed increases above 3-5 MPH (5-8 KPH)
sure to the service brakes. Completely depressing the Propulsion System Control (PSC) will drop
the pedal causes full application of both dynamic propulsion, if the retarder is still applied.
retarding AND the service brakes. An indicator light Releasing and reapplying dynamic retarding dur-
(B3, Figure 3-7) in the overhead panel will illuminate, ing a hill start operation will result in loss of pro-
and an increase in pedal resistance, will be felt when pulsion and, if truck speed is above 1-2 mph,
the the Service Brakes are applied. application of retarding effort.
For normal truck operation, Dynamic Retarding (lever
or foot-operated pedal) should be used to slow and HEATER / AIR CONDITIONER VENTS
control the speed of the truck.
Each heater/air conditioner vent (5, Figure 3-1) is a
Service brakes should be applied only when dynamic flapper type which may be opened or closed or rotated
retarding requires additional braking force to slow the 360° for optimum air flow. There are four (three not
truck speed quickly, or when bringing the truck to a shown) across the top of the panel, one each in the
COMPLETE stop. right and left panel modules, and four below the panel.
Operation - Section 3 OM3026.2
Page 3-16 Operator Cab and Controls
HEATER / AIR CONDITIONER wise to the desired position. “Off” is full counter-
COMPARTMENT AND CONTROLS clockwise position.
INSTRUMENT PANEL
The Instrument Panel (7, Figure 3-1) includes a wide variety of switches, gauges, and indicators. Refer to INSTRUMENT
PANEL AND INDICATOR LIGHTS, for a detailed description of function and location of these components.
RADIO SPEAKERS
Radio Speakers (9, Figure 3-1) for the AM/FM Stereo
radio are located at the far left and right of the overhead
panel.
____________________________________________________________________________________________________
OVERRIDE / FAULT RESET SWITCH RETARD SPEED CONTROL (RSC) ADJUST DIAL
This push-button The RSC Adjust Dial (12, Figure 3-4) allows the opera-
switch (9, Figure tor to vary the downhill truck speed that the Retard
3-4) i s sp r ing - Speed Control system will maintain when descending
l o ad ed t o t he a grade. This function can be overridden by either the
“OFF” postion. accelerator, retard lever, or retard pedal.
When pushed in
When the dial is rotated counterclockwise
and held, this switch may be used for several functions.
toward this symbol, the truck will descend
1. This switch permits the operator to override the a grade at lower speeds.
“bodyup” switch and move the truck forward
when the Selector Switch is in Forward, the dump
When the dial is rotated clockwise toward
body is raised, and the brakes are released.
this symbol, the truck speed will increase.
! Use of the override switch for this purpose is
intended for emergency situations only! ALWAYS refer to the Grade/Speed decal in the
operator’s cab, and follow the recommendations for
truck operation. DO NOT exceed these recommended
2. The override switch is also used to reset an electric
MAXIMUM speeds when descending grades with a
system fault when indicated by a red warning light
loaded truck.
(Refer to “Instrument Panel And Indicator Lights”,
Overhead Warning / Status panel). Throttle pedal position will override RSC setting. If
operator depresses throttle pedal to increase truck
speed, Dynamic Retarding will not come on unless
truck overspeed setting is reached or foot operated
retard pedal is used. When throttle pedal is released
10, FIGURE 3-4 - BLANK and RSC switch is “On”, Dynamic Retarding will come
on at, or above, the RSC dialed speed and will adjust
This position is not used for the truck speed to, and maintain, the dialed speed.
930E.
To adjust RSC control, pull switch (11) “On” and start
In some other truck models, this with dial (12) rotated toward fastest speed while driving
position is used for an Engine Idle truck at desired maximum speed. Relax throttle pedal
Switch. to let truck coast and turn RSC Adjusting Dial slowly
counterclockwise until Dynamic Retarding is activated.
Dynamic Retarding will now be activated automatically
anytime the “set” speed is reached, the RSC switch is
“On”, and throttle pedal is released.
RETARD SPEED CONTROL (RSC) With RSC switch “On” and dial adjusted, the system
“OFF/ON” SWITCH "IN" "OFF" will function as follows: As truck speed increases to the
The Retard Speed Control Switch “set” speed and throttle pedal released, Dynamic Re-
(11, Figure 3-4) turns the system tarding will apply. As truck speed tries to increase, the
“OFF” or “ON”. Push the knob “IN” amount of retarding effort will automatically adjust to
to turn “OFF” and pull the knob keep the selected speed. When truck speed de-
“OUT” to turn the system “ON”. creases, the retarding effort is reduced to maintain the
"OUT" "ON"
selected speed. If truck speed continues to decrease
to approximately 3 mph (4.8 kph) below “set” speed,
Dynamic Retarding will turn off automatically. If truck
speed must be reduced further, the operator can turn
the Adjust Dial to a new setting or depress the foot
operated retard pedal.
If the operator depresses the foot operated retard
pedal and the retard effort called for is greater than that
from the automatic system, the foot pedal retard will
override RSC.
Operation - Section 3 OM3026.2
Page 3-22 Operator Cab and Controls
OPERATOR COMFORT
OPERATOR SEAT
The operator’s seat provides a fully adjustable cush-
ioned ride for the driver’s comfort and ease of opera-
tion.
Adjustment
The following adjustments must be made while sitting
in the seat.
1. Headrest: headrest (1, Figure 3-5) will move up,
down, fore, or aft by moving headrest to desired
position.
2. Armrests: rotate adjusting knob until armrest is in
desired position.
3. Seat Belt: Operator should always have seat belt
buckled in place and properly adjusted whenever
vehicle is in motion.
4 & 5. Air Lumbar Support: Each rocker switch (4
or 5) controls an air pillow. Switch (5) controls the
lower air pillow and switch (4) controls the upper
air pillow. To inflate, press on top of rocker switch
and hold for desired support, then release. To
deflate, press on bottom of rocker switch and hold
for desired support, then release. Adjust each
pillow for desired support.
6. Seat Height: Press rocker switch (6) on top to
increase ride height. Press on lower part of rocker
switch to lower ride height. FIGURE 3-5. OPERATOR’S SEAT
7. Backrest: Pull control (7) upward and hold, select ADJUSTMENT CONTROLS
backrest angle; release control handle. 1. Headrest
2. Armrest Adjustment
8. Fore/Aft Location of Seat: 3. Seat Belt
a. Raise adjustment lever (8). 4. Upper Air Pillow Lumbar Support
b. Move seat to desired position; release lever. 5. Lower Air Pillow Lumbar Support
6. Height Adjustment
9. Front Height and Slope Adjustment of Seat 7. Backrest Adjustment
Cushion: 8. Fore and Aft Adjustment
a. Front height and slope; lift control lever (9) and 9. Front Height and Slope Adjustment
hold. 10. Mounting Capscrews and Hardware
b. Bend knees to move seat to a comfortable 11. Seat Tether Capscrew
position; release control lever to lock adjust-
ment.
Seat Installation
Seat Removal 1. Mount seat assembly to seat riser. Install cap-
1. Remove capscrews (10, Figure 3-5) and hardware screws (10, Figure 3-5), lockwashers, flatwashers
that secures the seat base to the riser. Remove and nuts. Tighten capscrews to standard torque.
capscrews (11) that secures tether to floor. 2. Fasten tether straps to floor with capscrews (11),
2. Remove seat assembly from cab to clean work flatwashers and lockwashers. Tighten capscrews
area for disassembly. to standard torque.
Operation - Section 3 OM3026.2
Page 3-24 Operator Cab and Controls
NOTES
OM3026.3 Operation - Section 3
Instrument Panel & Indicator Lights Page 3-25
This symbol may be used alone or This symbol identifies a rotary con-
with another symbol. This symbol trol or switch. Rotate the knob
identifies the “ On” position of a clockwise or counterclockwise for
switch or control. functions.
This symbol identifies the “Pushed- This symbol identifies a switch used
In” position of a push-pull switch or to test or check a function. Press
control. the switch on the side near the sym-
bol to perform the test.
WIRE NUMBERS
1. 712/21PB/11S 11.71/79M/SPR55/79H/72F/SPR54 21. 712D/31TS/710/49
2. 11S/11TD/11R 12. 712BL/52B/39H/710/SPR59 22. 712D/38G/710/49
3. 712/47S/47L/710 13. 71/52C/21PB/21 23. 15V/72MT/49/710
4. 11L/48A/48B 14. 41TS/74X/74Z/710 24. 11L/36
5. 11L/48F 15. 45R/710 25. 15V/34BT/710/49
6. 49/710 16. 41H/710 26. 710/72RQ
7. No Wires 17. 45L/710 27. 11D/41L/41TS
8. 712/28E 18. 41TS/77/77A/710 28. High 66S/Low 66L/710/66P Pulse/
9. 11L/11RB 19. 712D/710/49 712W / Washer 66
10. 712/69M/SPR56/SPR57/SPR58 20. 712D/31PS/710/49 29. 49/41TS
OM3026.3 Operation - Section 3
Instrument Panel & Indicator Lights Page 3-27
(2, Figure 3-6) ENGINE SHUTDOWN SWITCH with 5 MINUTE IDLE TIMER DELAY
This is a 3-position rocker-type switch (Off-On-Momentary). Refer to "OPERATING INSTRUCTIONS" section,
"DELAYED ENGINE SHUTDOWN PROCEDURE", for a complete detailed operation of this switch.
1. Press top of switch to the “On” (center position), then press firmly to the “Momentary” (upper
position) and hold this position briefly to activate the 5 Minute Idle Timer (switch is spring-
loaded to return to “On” position when released).
At the SAME time while holding the “Momentary” switch position, turn the Keyswitch
counterclockwise to the “Off” position.
When the engine stops after the 5 minute idle period, the hydraulic bleeddown timer will be
activated and turn off the 24 VDC electric circuits controlled by the keyswitch.
NOTE :
To cancel the 5 Minute Idle Timer sequence, press Timer Delay Shutdown switch to the “Off” (lower) position.
• If keyswitch is in “Off” position, engine will stop.
• If keyswitch is in “On” position, engine will continue to run.
If engine does not shutdown with keyswitch, use Engine Shutdown Switch (8, Figure 3-4) on operator cab
center console, and hold this switch down until engine stops. The Ground Level Shutdown
Switch will also stop the engine during this time-out.
2. When the Engine Shutdown Timer has been activated, the Timer Delay indicator light in the
overhead display panel (C4, Figure 3-7) will illuminate to indicate that the shutdown timing
sequence has been started. The engine will continue to run at Idle RPM for approximately 5
minutes to allow for proper engine cool-down before stopping.
Operation - Section 3 OM3026.3
Page 3-28 Instrument Panel & Indicator Lights
To use the windshield washer, press and hold the knob “in” to activate the windshield washer
system.
D4* Retard Speed Control Amber-12MD/31R * NOTE: Brightness for these Indicator Lamps can be
adjusted by using Dimmer Control (12, Figure 3-1).
E4* CHECK ENGINE Amber-12MD7/419
Operation - Section 3 OM3026.3
Page 3-34 Instrument Panel & Indicator Lights
Refer to Figure 3-7 and the descriptions below for explanations of the symbols.
Location of the symbols is described by rows (A-E) and columns (1 - 6).
C3. Body Up
This amber Body Up indicator, when illuminated, shows that the body is not completely down
on the frame. The truck should not be driven until body is down and light is off.
A5. NO POWER
This RED “No Retard/No Propel” indicator light indicates a fault has occurred which has
eliminated the retarding and propulsion capability. A warning buzzer will also sound.
If this condition occurs, the operator should safely stop the truck, move Selector
Switch to Neutral, apply the Park Brake, shutdown engine, and notify maintenance
personnel immediately.
An example of a condition that could cause the Stop Engine light to illuminate:
• If engine governor senses an overspeed condition, the ECM will close the fuel
solenoid and stop the flow of fuel to the engine until engine speed is back within
normal operating range.
OM3026.3 Operation - Section 3
Instrument Panel & Indicator Lights Page 3-39
A6. NO PROPEL
The RED “No Propel” light indicates a fault has occurred which has eliminated the propulsion
capability.
If this condition occurs, the operator should safely stop the truck, move Selector
Switch to Neutral, apply the Park Brake, shutdown engine, and notify maintenance
personnel immediately.
The hazard warning light switch flashes all the turn signal lights.
Pressing the bottom side of the rocker switch (toward the triangle) activates these lights.
Pressing the top side of the rocker switch (toward the “OFF” symbol) turns these lights off.
COOLING SYSTEM
COOLANT LEVEL CHECK ANTI - FREEZE RECOMMENDATIONS
inspect the coolant sight gauge. If coolant cannot be (Ethlyene Glycol Permanent Type Anti-Freeze)
seen in the sight gauge, it is necessary to add coolant Percentage of Protection
to the cooling system before truck operation. Refer to Anti-Freeze To
the procedure below for the proper filling procedure. 10 + 23°F – 5°C
20 + 16°F – 9°C
25 + 11°F – 11°C
RADIATOR FILLING PROCEDURE 30 + 4°F – 16°C
35 – 3°F – 19°C
40 – 12°F – 24°C
45 – 23°F – 30°C
50 – 34°F – 36°C
55 – 48°F – 44°C
Cooling System is pressurized due to thermal ex- 60 – 62°F – 52°C
pansion of coolant. DO NOT remove radiator cap
Use only anti-freeze that is compatible with engine as
while engine and coolant are hot. Severe burns
specified by engine manufacturer.
may result.
1. L.H. Suspension, Top Bearing 13. R.H. Hoist Cylinder, Top Bearing
2. L.H. Suspension, Bottom Bearing 14. R.H. Hoist Cylinder, Bottom Bearing
3. L.H. Body Pivot Pin 15. R.H. Anti-Sway Bar Bearing
4. L.H. Hoist Cylinder, Top Bearing 16. Vent Hose
5. L.H. Hoist Cylinder, Bottom Bearing 17. Junction Box
6. L.H. Anti-Sway Bar Bearing 18. Pressure Switch, N.O., 2500 psi (17 237 kPa)
7. Rear Axle Pivot Pin 19. Grease Pump
8. Grease Supply From Pump 20. Vent Valve
9. Pressure Switch, N.O., 2000 psi (13 790 kPa) 21. Filter
10. R.H. Suspension, Top Bearing 22. Grease Supply to Injectors
11. R.H. Suspension, Bottom Bearing 23. Truck Frame
12. R.H. Body Pivot Pin 24. Injector
OM4026.2 4/00 Rotary Pump Maintenance - Section 4
Automatic Lubrication System Page 4-15
Note: The pump crankcase oil level must be main- Delay Timer (11, Figure 4-5)
tained to the level of the pipe plug port. If necessary,
refill with 10W-30 motor oil. The delay timer, located in the Electrical Interface
Cabinet, provides a one minute delay in the low pres-
sure warning lamp circuit to allow a normally operating
system to attain full grease system pressure without
activating the warning lamp. If the system fails to reach
2000 psi (13 789 kPa) within this time period, the timer
will apply 24VDC to several relays which will illuminate
Hydraulic oil supply inlet pressure must not ex-
the low pressure warning lamp in the overhead display.
ceed 3000 psi (20 685 kPa). Exceeding the rated
An external 604K ohm resistor determines the delay
pressure may result in damage to the system com-
period.
ponents and personal injury.
Pump Cutoff Pressure Switch (N.O. 2500 psi [17
Grease Reservoir (12, Figure 4-2) 237 kPa]) (10, Figure 4-2)
The reservoir has an approximate capacity of 60 lbs. This pressure switch de-energizes the pump solenoid
(27 kg) of grease. When the grease supply is replen- relay when the grease line pressure reaches the switch
ished by filling the system at the service center, the pressure setting, turning off the motor and pump.
grease is passed through the filter to remove contami-
nants before it flows into the reservoir. Grease Pressure Failure Switch (N.O. 2000 psi
[13 789 kPa]) (9, Figure 4-3)
Pressure Reducing Valve (4, Figure 4-2)
This pressure switch monitors grease pressure in the
The pressure reducing valve, located on the manifold injector bank on the rear axle housing. If the proper
reduces the hydraulic supply pressure (from the truck pressure is not sensed within 60 seconds (switch
steering circuit) to a suitable operating pressure, [325- contacts do not close), several relays energize, actu-
350 psi (2 240-2 415 kPa)] for the hydraulic motor used ating a warning lamp circuit to notify the operator a
to drive the lubricant pump. problem exists in the the lube system.
Flow Control Valve (9, Figure 4-2) Pressure Gauge (7, Figure 4-2)
The flow control valve mounted on the manifold, con- The pressure gauge monitors hydraulic oil pressure to
trols the amount of oil flow to the hydraulic motor. the inlet of the hydraulic motor.
The flow control valve has been factory adjusted
and the setting should not be disturbed. Injectors (24, Figure 4-3)
Each injector delivers a controlled amount of pressur-
Solenoid Valve (5, Figure 4-2)
ized lubricant to a designated lube point. Refer to
The solenoid valve, when energized, allows oil to flow Figure 4-3 for locations.
to the hydraulic motor.
Maintenance - Section 4 Rotary Pump OM4026.2 4/00
Page 4-16 Automatic Lubrication System
System Operation 5. During this period, the injectors will meter the
appropriate amount of grease to each lubrication
Normal Operation: point.
1. During truck operation, the lubrication cycle timer 6. When grease pressure reaches the pressure
(1, Figure 4-5) will energize the system at a preset switch (3, Figure 4-5) setting, the switch contacts
time interval. will close and energize the relay RB7K5, remov-
2. The timer provides 24 VDC through the normally ing power from the hydraulic motor/pump sole-
closed relay, RB7K5 (4) used to energize the noid and the the pump will stop. The relay will
pump solenoid valve (5), allowing hydraulic oil remain energized until grease pressure drops
provided by the truck steering pump circuit to flow and the pressure switch opens again or until the
to the pump motor and initiate a pumping cycle. timer turns off.
3. The hydraulic oil pressure from the steering circuit 7. After the pump solenoid valve is de-energized,
is reduced to 325 to 350 psi (2 240 to 2 413 kPa) hydraulic pressure in the manifold drops and the
by the pressure reducing valve (4, Figure 4-4) vent valve will open, releasing grease pressure in
before entering the motor. In addition, the amount the lines to the injector banks. When this occurs,
of oil supplied to the pump is limited by the flow the injectors are then able to recharge for the next
control valve (6). Pump pressure can be read lubrication cycle.
using the gauge (5) mounted on the manifold. 8. The system will remain at rest until the lubrication
4. With oil flowing into the hydraulic motor, the cycle timer turns on and initiates a new grease
grease pump will operate, pumping grease from cycle.
the reservoir to the injectors (13), through a check
valve (10) and to the vent valve (11).
Pressure Failure Detection Circuits: 3. If a problem occurs and the system is not able to
attain 2000 psi (13.8 MPa), the delay timer (11)
1. When the lubrication cycle is initiated, 24VDC
will energize relay RB7K4 (12) after 60 seconds,
flows through relay RB7K1 (7, Figure 4-5) N.C.
turning on the “Low Lube System Pressure”
contacts to a 1 minute delay timer (11).
warning lamp on the overhead display. After
2. If the system is operating normally, grease pres- RB7K4 relay energizes, it will energize relay
sure at the rear axle injector bank will rise to RB7K3 (10).
pressure switch (6) setting of 2000 psi (13.8 MPa)
4. Once RB7K3 is energized, it will latch and remain
and energize relay RB7K1 (7), removing 24VDC
energized as long as the keyswitch is on. In
from the delay timer.
addition, RB7K4 will also remain energized and
the Low Lube Pressure Warning lamp will remain
on to notify the operator a problem exists and the
system requires service.
GENERAL INSTRUCTIONS
LUBRICANT REQUIRED FOR SYSTEM
Grease requirements will depend on ambient tempera-
tures encountered during truck operation:
• Above 90°F (32°C) - Use NLGI No.2 multipur-
pose grease (MPG).
• -25° to 90°F (-32° to 32°C) - Use NLGI No. 1
multipurpose grease (MPG).
• Below -25°F (-32°C) - Refer to local supplier for
extreme cold weather lubricant requirements.
SYSTEM PRIMING
The system must be full of grease and free of air
pockets to function properly. After maintenance, if the
primary or secondary lubrication lines were replaced,
it will be necessary to reprime the system to eject all
entrapped air.
1. Fill lube reservoir with lubricant, if necessary.
2. To purge air from the main supply line, remove
the main supply line at the Lincoln Lube canister
and connect an external grease supply to the line.
3. Remove plugs from each injector group in se-
quence (right front, left front, and rear axle).
4. Using the external grease source, pump grease
until grease appears at the group of injectors and
re-install the pipe plug. Repeat for remaining in-
jector groups.
FIGURE 4-6. FILTER ASSEMBLY
5. Remove the caps from each injector and connect
1. Housing 6. Spring
an external grease supply to the zerk on the 2. Bypass Indicator 7. Bowl
injector and pump until grease appears at the far 3. O-Ring 8. O-Ring
end of the individual grease hose or the joint being 4. Backup Ring 9. Plug
greased. 5. Element
FILTER ASSEMBLY
The filter assembly element (5, Figure 4-6) should be
replaced if the bypass indicator (2) shows excessive
element restriction.
OM4026.2 4/00 Rotary Pump Maintenance - Section 4
Automatic Lubrication System Page 4-19
LUBRICANT PUMP
INJECTOR OPERATION
STAGE 1.
The injector piston (2) is in its normal or
“rest” position. The discharge chamber (3)
is filled with lubricant from the previous
cycle. Under the pressure of incoming lubri-
cant (6), the slide valve (5) is about to open
the passage (4) leading to the measuring
chamber (1) above the injector piston (2).
STAGE 2.
When the slide valve (5) uncovers the pas-
sage (4), lubricant (6) is admitted to the
measuring chamber (1) above the injector
piston (2) which forces lubricant from the
discharge chamber (3) through the outlet
port (7) to the bearing.
STAGE 3.
As the injector piston (2) completes its
stroke, it pushes the slide valve (5) past the
passage (4), cutting off further admission of
lubricant (6) to the passage (4) and meas-
uring chamber (1). The injector piston (2)
and slide valve (5) remain in this position
until lubricant pressure in the supply line (6)
is vented.
STAGE 4.
After venting, the injector spring expands,
causing the slide valve (5) to move, so that
the passage (4) and discharge chamber (3)
are connected by a valve port (8). Further
expansion of the spring causes the piston
to move upward, forcing the lubricant in the
measuring chamber (1) through the pas-
sage (4) and valve port (8) to refill the
discharge chamber (3).
Injector Specifications
• Each lube injector services only one grease
point. In case of pump malfunction, each injector
is equipped with a covered grease fitting to allow
the use of external lubricating equipment.
• Injector output is adjustable:
Maximum output = 0.08 in3 (1.31 cc).
Minimum output = 0.008 in3 (0.13 cc).
• Operating Pressure:
Minimum - 1850 psi (12 755 kPa)
Maximum - 3500 psi (24 133 kPa)
Recommended - 2500 psi (17 238 kPa)
Maximum Vent Pressure - (Recharge)
600 psi (4 137 kPa)
Injector Adjustment
The injectors may be adjusted to supply from 0.008 in3 FIGURE 4-8. TYPE SL-1 INJECTOR
to 0.08 in3 (0.13 cc to 1.31 cc) of lubricant per injection 1. Adjusting Screw 11. Spring Seat
cycle. The injector piston travel distance determines 2. Locknut 12. Plunger
the amount of lubricant supplied. This travel is in turn 3. Piston Stop Plug 13. Viton Packing
controlled by an adjusting screw in the top of the 4. Gasket 14. Inlet Disc
injector housing. 5. Washer 15. Viton Packing
6. Viton O-Ring 16. Washer
Turn the adjusting screw (1, Figure 4-8) counterclock- 7. Injector Body Assy. 17. Gasket
wise to increase lubricant amount delivered and clock- 8. Piston Assembly 18. Adapter Bolt
wise to decrease the lubricant amount. 9. Fitting Assembly 19. Adapter
10. Plunger Spring 20. Viton Packing
When the injector is not pressurized, maximum injector
delivery volume is attained by turning the adjusting
screw (1) fully counterclockwise until the indicating pin
(8) just touches the adjusting screw. At the maximum NOTE: The Piston Assembly (8) has a visible indicator
delivery point, about 0.38 inch (9.7 mm) adjusting pin at the top of the assembly to verify the injector
screw threads should be showing. Decrease the deliv- operation.
ered lubricant amount by turning the adjusting screw
clockwise to limit injector piston travel. If only half the
lubricant is needed, turn the adjusting screw to the
point where about 0.19 inch (4.8 mm) threads are
showing. The injector will be set at minimum delivery
point with about 0.009 inch (0.22 mm) thread showing.
NOTE: The above information concerns adjustment of
injector delivery volume. The timer adjustment should
also be changed, if overall lubricant delivery is too little
or too much. Injector output should NOT be adjusted
to less than one-fourth capacity.
Maintenance - Section 4 Rotary Pump OM4026.2 4/00
Page 4-22 Automatic Lubrication System
SYSTEM CHECKOUT
To check system operation (not including timer), pro-
ceed as follows:
1. Turn keyswitch “ON” and start the engine.
2. Actuate the Lube System Test Switch at the
reservoir/pump assembly on the front bumper.
3. The motor and pump should operate until the
system attains 2500 psi (17 237 kPa).
4. Once the required pressure is achieved, the pump
motor should turn off and the system should vent.
5. Check for pump, hose or injector damage or
leakage with the system under pressure.
FIGURE 4-9. TIMER (TOP COVER REMOVED)
6. After checking system, shutdown engine, observ-
1. Timer Enclosure
ing normal precautions regarding high voltage
2. Red LED (Light Emitting Diode)
present in the propulsion system before attempt- 3. Timer Selector
ing to repair lube system.
Lube system not grounded. Correct grounding connections to pump assembly and
truck chassis.
Electrical power loss. Locate cause of power loss and repair. Check circuit
breaker CB7. Be sure keyswitch is “ON”.
Timer malfunction. Replace timer assembly
Solenoid valve malfunctioning. Replace the solenoid valve assembly
RB7K5 Relay malfunctioning Replace relay
Motor or pump malfunction. Replace motor and/or pump assembly
Pressure switch defective Replace pressure switch
NOTE: On initial startup of the lube system, the timing capacitor will not contain a charge, therefore the first timing
cycle will be about double in length compared to the normal interval. Subsequent timer cycles should be as specified.
Low lubricant supply. Dirt in reservoir, pump inlet clogged, filter clogged.
Air trapped in lubricant supply line. Prime system to remove trapped air.
Lubricant supply line leaking. Check lines and connections to repair leakage.
Vent valve leaking. Clean or replace vent valve.
Pump worn or scored. Repair or replace pump assembly.
NOTE: Normally, during operation, the injector indicator stem will move into the body of the injector when pressure
builds properly. When the system vents (pressure release) the indicator stem will again move out into the adjusting
yoke.
Malfunctioning injector - usually indicated by the pump Replace individual injector assembly.
building pressure and then venting.
All injectors inoperative - pump build up not sufficient Service and/or replace pump assembly.
to cycle injectors.
Maintenance - Section 4 Rotary Pump OM4026.2 4/00
Page 4-24 Automatic Lubrication System
No system pressure to the pump motor. Check hydraulic hose from steering system.
No 24 VDC signal at pump solenoid. Determine problem in 24 VDC electric system.
Pressure reducing valve set too low. Refer to “Pressure Control Valve Adjustment”.
Relay (RB7K5) may be defective. Replace relay.
Pump inlet check or outlet check may have foreign Remove, inspect and clean, if necessary.
matter trapped causing leakage. Inspect sealing surfaces between checks. Replace if
rough or pitted.
Lubricant supply line leaks or is broken. Repair lubricant supply line
Insufficient hydraulic oil supply. Check oil pressure and flow to motor.
Timer BAT (-) connection is not on grounded member. Connect to good ground.
Timer BAT (+) connection not on circuit continuously Establish direct connection between Timer BAT (+)
connected to BAT (+) terminal during operation of connection and 24 V BAT (+) terminal.
vehicle.
Loose wire connections at any of the timer terminals. Secure wire connections.
Electrical noise is being introduced into the power IMPORTANT: In some instances, electrical noise
supply to the timer overcoming suppressor capacitor may be generated into vehicle electrical system
causing uncontrolled turn-on of its output relay. which may cause timer to turn on at random inter-
vals, independent of timer setting.
If this occurs, a 250 to 1,000 MFD capacitor rated
150 to 350 VDC should be added across BAT (+)
and BAT (-) terminals to suppress this noise and
improve timer performance.
Timer out of adjustment or damaged component. Refer to “Timer Adjustment and re-adjust timer or
replace timer.
Maintenance - Section 4 Rotary Pump OM4026.2 4/00
Page 4-26 Automatic Lubrication System
SPECIFICATIONS
These specifications are for the standard 930E Truck. Customer Options may change this listing.
HYDRAULIC SYSTEM
AC ELECTRIC DRIVE SYSTEM
Hoist & Brake Cooling Pump: . . . . Tandem Gear
AC/DC Current Output . . . 270 GPM (1022 l/min) @ 1900 RPM
Alternator . . . . . . . . General Electric GTA - 34 . . . . . . . . . . . . . and 2500 psi (17 237 kPa)
Integral Cooling Fan . . . 2500 cfm (71 m3/min) Steering/Brake Pump: Press. Compensated Piston
AC Thermally Mod. Dual Fan Output . . . . 65 GPM (246 l/min) @ 1900 RPM
. . . . . . . . . . . . . . . 12,000 cfm (340 m3/min) . . . . . . . . . . . . . and 2750 psi (18 961 kPa)
Motorized Wheels . . AC Induction Traction Motors Relief Pressure- Hoist . . . . . 2500 psi (17.2 MPa)
. . . . . . . . . . . . . . . Wheel Slip/Slide Control Relief Pressure- Steering/Brake 2750 psi (22.4 MPa)
Standard Gear Ratio* . . . . . . . . . . . 31.50:1 Hoist . . . . . . . Two 3-Stage Hydraulic Cylinders
Maximum Speed . . . . . . 40 MPH (64.5 km/h) Tank . . . . Vertical - Cylindrical, Non-Pressurized
* NOTE: Wheelmotor application depends upon GVW, haul Tank Capacity . . . . . 250 U.S. Gal. (947 Liters)
road grade, haul road length, rolling resistance, and other pa- Filtration . . . . . . . In-line replaceable elements
rameters.
Komatsu & G.E. must analyze each job condition to assure Suction . . . . . . . Single, Full Flow, 100 Mesh
proper application. Hoist & Steering Filters . . . Beta 12 rating = 200
. . . . . . . . . . . . Dual, In-Line, High Pressure
DYNAMIC RETARDING
Electric Dynamic Retarding . . . . . . . Standard SERVICE BRAKES
Maximum Retarding . . . . . . 5400 HP (4026 kW)
All Hydraulic Actuation . . . . with Traction System
Continuous . . . . . . . . . . 3300 HP (2460 kW) . . . . . . . . . . . . . . Wheel Slip/Slide Control
Continuously Rated High-density Blown Grids Front & Rear Oil-Cooled Multiple Discs
with Retard at Engine Idle and Retard in Reverse
Propulsion. . . . . . . . . . . . . . . . . . . . at Each Wheel.
Total Friction Area /Brake 15,038 in2 (97 019 cm2)
Maximum Apply Pressure . 2500 psi (17 238 kPa)
BATTERY ELECTRIC SYSTEM
Batteries - . . . . . . . . . . . . bumper-mounted
4 x 8D & 2 x 30H 12 Volt Batteries in Series/Parallel
. . . . . . . . . . . . . 220 Ampere-Hour Capacity
STEERING
. . . . . . . . . . . . . . . With Disconnect Switch Turning Circle (SAE) . . . . . 97 ft. 4 in. (29.67 m)
Alternator . . . . . . . 24 Volt, 240 Ampere Output Twin hydraulic cylinders with accumulator assist to
provide constant rate steering.
Lighting . . . . . . . . . . . . . . . . . . . 24 Volt
Starters (2) . . . . . . . . . . . . . . . . . 24 Volt Emergency Power Steering automatically provided by
Accumulators
Specifications - Section 5 OM5023
Page 5-4 Component Descriptions
PAYLOAD METER II
ON BOARD WEIGHING SYSTEM (OBWS)
INDEX
GENERAL INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3
LIGHTS, SWITCHES, and COMPONENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-4
TIPS FOR OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-5
EXTERNAL DISPLAY LIGHTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-5
THEORY OF OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-6
Basic Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-6
Linkage Factor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-6
Brake Lock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-7
Sources of Error . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-7
Typical Data From Service Check Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-7
Example Calculation of Payload . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-8
Calculation of the Calibration Load . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-8
TYPES OF DATA STORED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-9
Cycle data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-9
Engine ON/OFF Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-10
Fault Codes and Warning Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-10
Engine Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-11
Total Payload and Total Number of Cycles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-11
Other Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-11
OPERATOR FUNCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-12
Using the Operator Load Counter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-12
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-12
Viewing the Operator Load Counter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-12
Clearing the Operator Load Counter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-12
Dimming the Lights on the Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-12
INITIAL SETUP OF PAYLOAD METER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-13
Switch Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-13
Checking the Operator Check Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-13
Checking the Service Check Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-14
Setting "UP:00". . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-14
Setting "PL:00" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-14
Checking the Gt Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-14
Checking the Inclinometer Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-15
Calibrating a Truck . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-15
DISPLAYS AT START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-16
SETUP AND MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-17
Setting the Speed Limit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-17
Setting the Option Code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-17
Setting The Machine I.D. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-17
Setting The Operator I.D. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-18
Setting The Time and Date . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-18
Optional Equipment - Section 6 OM6006 10/00
Page 6-2 Payload Meter II
PAYLOAD METER II
ON BOARD WEIGHING SYSTEM (OBWS)
GENERAL INFORMATION The payload meter stores in memory various operating
data. This data includes:
The Payload Meter II On Board Weighing System
displays and records the payload weight along with 1) The payload, time, distance, and travel speed for
other operating information. The system consists of a each cycle.
payload meter, pressure sensors, deck mounted lights 2) The date and time that the engine was started and
and an inclinometer. stopped.
The payload meter (Figure 6-1) uses the four suspen- 3) The date and time of each fault that occurred or
sion pressures and an inclinometer to determine the was canceled.
load in the truck. The payload weight can be displayed
in short tons or metric tons. 4) The total payload and the overall number of cycles
for a specific time period.
There are three external deck-mounted lights on each
side of the truck. The lights indicate payload weight This data is retained even when the power is switched
divided into three separate stages. A forecast feature off. The stored data is backed up by an internal battery.
will flash a deck mounted light predicting the payload The data can be down loaded from the payload meter
weight if the next bucket of material is dropped into the to a personal computer when a communication cable
body. is connected to the port inside the cab.
Figure 6-3.
OM6006 10/00 Optional Equipment - Section 6
Payload Meter II Page 6-7
XGain Factor (14) 1.00 5. Press MODE once and the meter will return to
214.40 normal operation.
- Calibration (13) -70.60
Current Load(15) 143.80
Figure6-5.
OM6006 10/00 Optional Equipment - Section 6
Payload Meter II Page 6-9
Cycle Data
One cycle is considered to be from the point where a load is dumped to the point where the next load is dumped.
Data between these two points is recorded in memory. Examples of the data are shown below. The maximum
number of cycles that can be stored in memory is 2900 cycles.
Engine Operation
Other Data
CONTENT ITEM UNIT RANGE REMARKS
Set Up Data That The Speed Limit Km/MPH 0 - 99
Operator Can Check Option Code Digital Number 0 - 13 Communication Mode
Year Year 0 - 99
Month Month 1 - 12
Calibration Data Day Day 1 - 31 Date and time when calibrated.
Hour Hour 24 Hour Clock
Minute Minute 0 - 59
Optional Equipment - Section 6 OM6006 10/00
Page 6-12 Payload Meter II
Viewing the Operator Load Counter Dimming the Lights on the Display
1. Press the TOTAL/SFT switch once. There are a total of 10 brightness levels on the PLM
If there is a fault code present at this time: display.
2. The error code for that problem will be displayed.
This will be a flashing display. From the normal operation display:
3. Press the TOTAL/SFT switch again. If additional 1. Press the LIGHT/INC switch. The lighting will
faults or warnings exist, that fault code will be become one level dimmer. This will continue until
displayed as a flashing code. the lighting has reached its lowest level.
4. Repeat step #3 until no fault codes are displayed. 2. After reaching the lowest level, the display will
":" will show when no additional faults exist. The return to the brightest setting.
display will then show total tons hauled since the
last time the counter was cleared. The total is If the switch is held in the depressed position, the
displayed in hundreds of tons. brightness will change continuously.
5. Press the TOTAL/SFT switch again. The number
displayed is the number of haul cycles since the
last time the cycle counter was cleared.
6. Press the TOTAL/SFT switch again. ":" is dis-
played for 2 seconds before the display returns to
normal operations.
OM6006 10/00 Optional Equipment - Section 6
Payload Meter II Page 6-13
INITIAL SETUP OF PAYLOAD METER There are nine switches located behind the panel on
the left side of the payload meter. Figure 6-8 shows
There are several things that must be checked and the switch numbers. The following switch positions
programmed when a Payload Meter is first installed. should be confirmed before the meter is installed.
1. Check the Switch Settings on the side of the
Switch Position
meter.
1 Gt Gain - Do Not Adjust
2. Check the Operator Check Mode settings
B Buzzer Volume - Do not Adjust
3. Check the Service Check Mode settings 2 7
4. Calibrate the clean truck. 3 7
The next few pages show the steps required to perform 4* 4 - 685E
these checks. Only after all of these steps have been 5 - 630E
performed can the payload meter be released for B - 730E
service.
C - 930E
D - 530M
E - 330M
Switch Settings
F - 830E
5 DOWN
6 DOWN
7 DOWN - SHORT TONS
UP - METRIC TONS
8 UP
Calibrating a Truck
The payload meter should be calibrated whenever one
of the following occurs:
1. When a new payload meter is installed.
2. When a suspension sensor has been changed.
3. Whenever the suspensions have been serviced
or the Nitrogen levels have changed.
4. Once a month thereafter.
To calibrate the payload meter:
1. With the engine running and the truck stopped,
press and hold the CAL/CLR switch until "CAL" is
flashing on the display.
2. Drive the truck until the speed is approximately
6-10 MPH (10-15 Km/H)
3. Press the CAL/CLR switch once.
4. Drive until the display switches back to the time
of day. This will take up to 30 seconds.
5. The payload meter is now calibrated and ready
for normal operation.
•Reception Pilot Lamp (2, Figure 6-1) 10. The display will show:
•Transmission Pilot Lamp (3, Figure 6-1)
This display indicates the Option code setting.
•Memory Card Pilot Lamp (4, Figure 6-1)
Refer to “Operator Check Mode, Setting the Op-
2. The display will show: tion Code” and to “Method of Operation” for more
information on this function.
The “xx” indicates the Truck Model. Refer to
"Initial Setup of Payload Meter" for code defini-
tions.
SETUP AND MAINTENANCE 7. Press the LIGHT/INC switch to change the “tens
digit” to the desired number.
8.Press the MODE switch to return to normal opera-
Speed Limit tion.
A warning can be displayed if the machine exceeds a 9. The Option Code selects the PLM communication
preset speed. mode as follows:
The available range is: 10 - 99 km/h (6 - 62 mph). It is
recommended to set the speed limit to 99 km/h (62 Option
mph). COMMUNICATION MODE
Code
9. Press the LIGHT/INC switch to change the first 7. Press the LIGHT/INC switch to change the hours.
digit to the desired number. The clock is a 24 hour clock.
10. Press the MODE switch to return to normal op- 8. Press the TOTAL/SFT switch and
eration. the display will then indicate:
Setting The Operator I.D. Code 9. Press the LIGHT/INC switch to change the day.
1. Press and hold the MODE switch 10. Press the TOTAL/SFT switch and
until "Cd:dP" is displayed. the display will then indicate:
2. Press the MODE switch once. The 11. Press the LIGHT/INC switch to change the month.
display will show:
12. Press the TOTAL/SFT switch and
the display will then indicate:
3. Press the MODE switch once. The
display will show:
13. Press the LIGHT/INC switch to change the year.
4. Press the MODE switch repeatedly 14.Press the MODE switch to return to normal opera-
until "o.XXX" is displayed. tion.
Setting The Time and Date To begin, the shift lever should be in the “N”
position, the brake lock set, the hoist control lever
1. Press and hold the MODE switch should be in the “FLOAT” position and the body in
until "Cd:dP" is displayed. the down position.
2. Press the MODE switch once. The 1. Press and hold the MODE switch
display will show: until "Cd:dP" is displayed.
3. Press the MODE switch once. The 2. Press the MODE switch once. The
display will show: display will show:
4. Press the MODE switch repeatedly 3. Press and hold the CAL/CLR
until "XX:XX" is displayed. switch until "A.CLE" is flashing.
5. Press the LIGHT/INC switch to change the min- 4. Press the CAL/CLR switch again and the memory
utes. will be cleared. The meter will then return to
normal operation.
6. Press the TOTAL/SFT switch and
the display will then indicate: This does not clear the Operator Load Counter.
OM6006 10/00 Optional Equipment - Section 6
Payload Meter II Page 6-19
“ C1:oo” Shift selector is in "N". 4. Press the TOTAL/SFT switch to view faults again
or press the MODE switch to return to normal
“ C1:– –” Shift selector is not in "N’. operation.
Electric trucks
“ C1:oo” Brake lock is on.
“ C1:– –” Brake lock is off.
• Condition of the Body Up Switch signal.
The panel will display: “ C2:XX” for 3 seconds,
then indicate:
“ C2:oo” Body up switch is in up position.
“ C2:– –” Body up switch is in down position.
Optional Equipment - Section 6 OM6006 10/00
Page 6-20 Payload Meter II
OM6006 10/00 Optional Equipment - Section 6
Payload Meter II Page 6-21
Optional Equipment - Section 6 OM6006 10/00
Page 6-22 Payload Meter II
UP Factor - Payload Calculation Gain Careful consideration must be given to the use of
PL:01 and PL:10. These modes divide the data trans-
Description of UP Factor mitted by Modular Mining and the data stored in the
payload meter’s memory. Additionally, each mode
The payload calculation gain, or UP factor is multiplied handles the UP factor differently and can calculate
to the actual calculated load. From the example shown different loads for the same haul cycle. For these
in Figure XX, the calculated load is 143.8 tons. If the reasons it is recommended that the payload meter
UP factor is set to +5% the displayed load will be 143.8 be set to use PL:00 in all cases.
x 1.05 = 151 tons. This factor can be used to minimize
the effects of systematic error for a particular truck. The PL:00
UP factor is not applied uniformly to all load calcula-
tions. There are three operating modes for the payload Modular Mining Transmission - The data is captured
meter and the UP factor is applied differently to each at the last transition from 0 to 1 MPH prior to traveling
mode. Therefore, it is recommended that this percent- 160 meters from the shovel. The captured data is
age be set to 0. There are significant differences in final transmitted when the truck travels 160m from the
calculated load that can be introduced by adjusting this shovel. This load calculation will use the UP factor
gain. percentage.
Payload meters sent from the factory are typically set Memory Storage - Same as above, the data is cap-
to "UP: 5" indicating a +5% gain in final load. tured at the last transition from 0 to 1 MPH prior to
traveling 160 meters from the shovel. The captured
This should be checked on all new meters and data is stored into memory when the body rises at the
changed to "UP: 0". dump. This load calculation will use the UP factor
percentage.
PL Mode - Load Calculation Timing
PL:01
Load Calculation Timing
Modular Mining Transmission - The data is captured
The PL mode controls when the payload meter takes at the last transition from 0 to 1 MPH prior to traveling
a sample of the data and calculates the load. There 160 meters from the shovel. The captured data is
are three modes available. There are two sets of data transmitted when the truck travels 160m from the
that are affected by the PL mode setting. shovel. This load calculation will use the UP factor
percentage.
• Modular Mining Transmission
Memory Storage - The data is captured and stored
• Memory Storage when the body rises from the frame. This calculation
will not use the UP factor percentage.
PL:10
The PL mode setting can have a significant impact on Modular Mining Transmission - The data is captured
the perceived accuracy of the payload meter. and transmitted when the truck travels 160 meters
from the shovel. This calculation will not use the UP
PL:00 is the only recommended setting. factor percentage.
Use of settings other than PL:00 Memory Storage - The data is captured and stored
is NOT recommended. when the body rises from the frame. This calculation
will not use the UP factor percentage.
Optional Equipment - Section 6 OM6006 10/00
Page 6-24 Payload Meter II
Installation Installation
1. Install new O-ring on sensor (4, Figure 6-11) and 1. Install inclinometer (3, Figure 6-13) with cap-
install sensor into adapter (3). Tighten sensor to screws, nuts and lockwashers (4).
22–29 ft.lbs. (30–39 N.m) torque.
2. Install new O-ring on adapter (3) and install com-
plete adapter/sensor assembly into valve (2).
Hold valve body and tighten adapter/sensor as-
sembly to 103 ft.lbs. (176 N.m) torque.
3. Connect sensor wiring to truck wiring harness.
The sensors have three wires. Be sure that wires
are connected correctly. (Figure 6-12)
INCLINOMETER
As the truck is tilted fore or aft, the weight distribution
between the front and rear axles changes. To compen- FIGURE 6-14. INCLINOMETER SIDE
sate for this, the inclinometer measures the ground CONNECTOR VIEW
angle at which the truck rests. This data is then sent
to the payload meter so it can calculate the correct Pin Number Wire Color Wire Function
payload weight. The inclinometer is located below the
operator’s center console (passenger seat structure). 1 Black Ground (GND)
2 White Signal
Removal 3 Red + Power
1. Disconnect inclinometer wire lead from harness.
Adjustment
2. Remove the three capscrews, nuts and lockwash-
ers (4, Figure 6-13) and inclinometer (3). 1. Park the truck on a 0% grade.
2. Loosen the three Inclinometer mounting cap-
screws (4, Figure 6-13) and rotate the Inclinome-
ter until a voltage range of 2.6 ±0.1 Volts can be
measured (using aVolt/Ohm Meter) at pins 1 and
2 of the inclinometer electrical harness connector.
3. Tighten all capscrews (4, Figure 6-13) to standard
torque, after adjustment.
Optional Equipment - Section 6 OM6006 10/00
Page 6-28 Payload Meter II
SCOREBOARD
Description
The Scoreboard from Komatsu Mining Systems uses
information from the Payload Meter to display the
current load. It uses ultra-high-brightness LED tech-
nology to form 3 digits. The sign is fully sunlight read-
able and housed in a rugged steel enclosure.
The Scoreboard displays each swing pass as the truck
is being loaded. As the truck drives away, the sign will
display the last swing pass until the final load calcula-
tion is made. It will then switch to display the final load
calculation and hold it until the truck dumps. The sign
will then clear for the empty ride back to the shovel.
Making Connections
The Scoreboard connects to the RS232 port on the
Payload Meter. It must share this connection with other
dispatch systems like Modular Mining as well as the
PC download connection. This sharing of the single
port creates special circumstances when using a Per- Figure 6-15. Scoreboard
sonal Computer or dispatch system.
The Scoreboard is in constant communications with
The harness for the Scoreboard supplies two extra
the Payload Meter and must acknowledge every mes-
connections in the overhead compartment of the cab.
sage from the meter. In addition, the Scoreboard must
One is for the existing PC port and the other is for
also signal the Payload Meter that it is ready to receive
Modular Mining.
messages by supplying a 5vdc signal over the CTS
line. Installations that include Modular Mining or other When two Scoreboards are installed, the first sign
dispatch systems must take over the responsibility for transmits load information and power to the second
acknowledging messages from the Payload Meter. To sign. Note that the communications wire from the first
do this, the return communications line and the CTS sign connects to terminal 35L7. This is the retransmit
line from the Scoreboard must be cut and taped back. terminal. This wire then connects to the 35L4 terminal
When this is done, the Scoreboard simply monitors in the second sign. This is the receive terminal of the
communications between the Payload Meter and second sign.
Modular Mining. The Modular Mining system acknow-
The Payload Meter must be set to use OP12. Refer
ledges each message from the meter.
to "Setting the Option Code" for instructions.
Sharing this RS232 port with the Personal Computer
Once in this mode, the Payload Meter will look for the
for downloading can also create problems with com-
Scoreboard and attempt to communicate with it. If
munications. The Payload Meter can confuse mes-
there are communications problems the Payload Me-
sages from the PersonalComputer and Scoreboard.
ter may indicate a communications port error. Refer to
To eliminate this problem, the Scoreboard must be
"Fault Codes" for additional information.
turned off during downloading of the Payload Me-
ter. Using the circuit breaker to turn off the main power
to the Scoreboard is the best way to accomplish this.
The power to the Scoreboard must be turned off before
communications between a Personal Computer and
the Payload Meter can start. Once the download proc-
ess is finished, the power needs to be restored to the
Scoreboard to keep from receiving F99 or F93 error
codes.
OM6006 10/00 Optional Equipment - Section 6
Payload Meter II Page 6-29
Optional Equipment - Section 6 OM6006 10/00
Page 6-30 Payload Meter II
CONNECTIONS
CN1 - AMP MIC-MKII 13 Pins White Connector CN3 - AMP MIC-MKII 9 Pins
No. Description Comments White (RS-232C Port)
CN2 - AMP 040 12 Pins Black Connector CN4 - AMP 040 8 Pins Black
(Optional Input, Reserved)
No. Description Comments
Running Open No. Description
1 Engine Oil Pressure Switch
Off - Closed 1 Optional Input GND
2 Sensor Power Out +18V 2 Analog Input 1
3 Sensor GND 3 Analog Input 2
4 Left FrontSuspension Pressure Sensor 1-5VDC Normal 4 Digital Input 1
Right Front Suspension PressureSensor 5 Digital Input 2
5 1-5VDC Normal
6
6 Left Rear Suspension Pressure Sensor 1-5VDC Normal 7
7 Right Rear Suspension Pressure Sensor 1-5VDC Normal
8 Inclinometer
Body Down - Open
9 Body Rise Signal
Body Up - Gnd
Lock Off - Open
10 Break Lock Signal/Neutral Signal
Lock On - Gnd
11
12
Optional Equipment - Section 6 OM6006 10/00
Page 6-32 Payload Meter II
This procedure is necessary to fix a rare condition in 7. Set the time, date, OP, PL, and UP settings. All
the operation of the meter. Indication for this procedure other user settings should updated at this time.
is a repeated display of F.CAL on the meter despite
8. Calibrate the Payload Meter by holding the CAL
repeated calibration. If possible, download the Pay-
button until CAL flashes.
load Meter before performing this procedure. This
procedure will erase all memory and user settings. 9. Release the Brake Lock (Park Brake for 330M)
and begin driving 5-8 MPH on level ground and
NOTE:
press CAL.
This procedure should be performed before any
CAL should display until the meter finishes its
Payload Meter is returned for warranty or repair.
calibration.
10. Load the truck to rated load and drive through one
Before performing this procedure, be sure that the
haul cycle.
engine inputs into the payload meter can be manipu-
lated to indicate engine running and engine stopped. 11. After dumping the load, wait at least 15 seconds
Some payload meter installations have hard-wired and drive the truck to a safe location.
these inputs. These inputs must be accessible and
12. Stop the truck and shut down the engine.
able to produce the following input conditions:
13. Turn on the Payload Meter but leave the engine
off.
21C 21D
14. Hold MODE and LIGHT until CHEC flashes.
Condition Engine Oil Alternator "R"
Pressure Terminal 15. Hold LIGHT and CAL until A:CLE flashes.
Engine Running Open 24VDC 16. Press CAL to clear the service memory.
Engine Stopped Ground Open
17. When CHEC is displayed, press MODE to return
to normal operation.
1. Turn off all systems. 18. Clear the Haul Cycle Memory by holding MODE
until Cd:dP is displayed.
2. Turn on the Payload Meter but leave the engine
off. 19. Press MODE and A.CLE will be displayed.
3. Hold MODE and LIGHT until CHEC flashes. 20. Hold CAL until A.CLE flashed.
4. Hold the CAL, TOTAL and LIGHT buttons until 21. Press CAL once more to clear the haul cycle
00:00 is displayed. memory.
5. Press CAL for 2 seconds. 00 00 will flash and the 22. Clear the operator load counter by pressing the
meter will erase its memory and reset to its factory TOTAL button until ":" is displayed.
settings. This includes and OP, UP, PL, P.SEL,
23. Hold the CAL button until the display flashes.
and E.SEL settings.
The meter will restart and display F.CAL. 24. Hold the CAL button until 0000 is displayed to
clear the memory.
6. Start the engine.
25. The payload meter should now function normally.
Optional Equipment - Section 6 OM6006 10/00
Page 6-34 Payload Meter II
NOTES
L. G. HAGENBUCH holder of
U.S. Patent Numbers 4,831,539 and 4,839,835
OM6006.1 2/99 Optional Equipment - Section 6
Cab Radio Page 6-35
CAB RADIO