电器系统

23.
ELECTRICAL SYSTEM
TABLE OF CONTENTS
23.1 HOW TO READ CIRCUIT DIAGRAM AND HARNESS CONNECTION ............................. 23-3
23.1.1 ELECTRIC CIRCUIT DIAGRAM ................................................................................ 23-3
23.1.2 HARNESS CONNECTION ........................................................................................ 23-3
23.2 ELECTRICAL EQUIPMENT & HARNESS ......................................................................... 23-4
23.2.1 ELECTRICAL EQUIPMENT LIST .............................................................................. 23-4
23.2.2 HARNESS & CABLE LIST ......................................................................................... 23-5
23.2.3 ARRANGEMENT DRAWING FOR COMPONENTS & HARNESS ............................ 23-6
23.2.4 DETAIL OF HARNESS & CABLE .............................................................................. 23-24
Book Code No. S5PJ2311E01
23-1
23. ELECTRICAL SYSTEM
Issue Date of Issue Applicable Machines Remarks

S5PJ2311E01
First edition December, 2004 CX55B : PJ04–03001~ KE
(CASE Shanghai)
23-2
23.1 HOW TO READ CIRCUIT DIAGRAM AND HARNESS CONNECTION

23.1.1 ELECTRIC CIRCUIT DIAGRAM
For the electric circuit diagram, refer to Fig. 71–13 of Supporting Data that is provided at the end of this shop manual.
(1) In the diagram, the number, size and color of wires are shown on the wiring line.
The size of the wire is to be 0.75 sq (square mm = mm2) unless otherwise specified.
WIRING COLOR TABLE

Example : 6 2 R Symbol Color Symbol Color Symbol Color
B BLACK Y YELLOW Gr GRAY
Wire Color : Red
G GREEN P PINK Sb SKY BLUE
Wire Size : 2 sq (mm2) L BLUE O ORANGE V VIOLET
Wire No. : 6 R RED Br BROWN
W WHITE Lg LIGHT GREEN
23.1.2 HARNESS CONNECTION

(1) Indication for Connector
Lock Wire No. Connector No.
Connector Name
Wire color
1) The figure for the connector pin arrangement is shown by putting the lock (nail) to upper portion, and looking
from the fitting face.
2) The numbers in the connector show the wire No., and alphabetical letters show the wire color.
3) On the side face of connector, the connector name and serial number of the connector No. are indicated.
4) At the place indicated as "DOUBLE SPLICE", Two wires are connected to one place.
(2) The connector is to be connected with engaging the male (M) and female (F) connectors of the same number.
Example : CN-101M and CN-101F
Where : M means for Male, and F for Female.
(3) mark means the connector with diode. The direction for diode is shown by the arrow.
(4) The AVSS wires are to be used for the size between 0.75 sq and 2 sq. AVS wires between 3 sq and 5 sq and
others are AV wires, unless otherwise specified.
(5) The wire size is 0.75 sq, unless otherwise specified.
(6) The treatment for the harness end is to be as follows :
1) : After roughly applying harness taping, wires are installed in a corrugated tube.
2) : Harness taping by two plies.
3) : No harness treatment for connection.
(7) The length for the above (6)-3) is to be 30 ± 10 mm. (1.2 ± 0.4 in), and the length includes in the total length of
wire shown in the diagram.
23-3
23.2 ELECTRICAL EQUIPMENT & HARNESS

23.2.1 ELECTRICAL EQUIPMENT LIST
(Note) • Refer to P. 71–16
Group Code Part Name Part No.

D-1 DIODE YN02D01001P1
D-2 DIODE ↑
D-3 DIODE ↑
Diode D-4 DIODE ↑
D-12 DIODE ↑
D-13 DIODE ↑
D-14 DIODE ↑
E-1 FUSE BOX PW73E00001F1
E-2 GENERATOR (ALTERNATOR) E/G accessory (119626–77210)
E-3 HORN PY53S00002P1
E-4 FUSIBLE LINK PH73S00001P1
E-6 GAUGE CLUSTER PH59S00005F1
E-7 POWER SOCKET PF81S01001P1
E-8 AIR HEATER E/G accessory (129100–77501)
Electical
Cab accessory
Fittings E-10 RADIO (OPT)
(PY54S00001P1)
E-12 HEATER (OPT) PM21M00005F1
E-13 BATTERY YJ72S00001P1
E-14 SEQUENCE BOX PA24S00002P3
E-15 FUSE BOX FOR COOLER (OPT) PH73E00004F1
E-20 TRAVEL ALARM [Aust.•China] PW53S00002F2
E-26 HOUR METER YT58S00006P1
L-1 ROOM LAMP PM80S00006P1
Light L-2 BOOM WORKING LIGHT PM80S00007F1
L-5 CAB / CANOPY WORKING LIGHT PW80S00003F1
M-1 STARTER MOTOR E/G accessory (129136-77011)
Cab accessory
M-2 WIPER MOTOR (CAB)
(PM76S00001F1)
Motor Cab accessory
M-3 WASHER MOTOR (CAB)
(PE54C00002S002)
M-4 DECELERATION MOTOR (OPT) PH20S00008F1
M-6 FUEL PUMP PW22P00001P1
R-1 BATTERY RELAY PH24S00001P1
R-2 SAFETY RELAY PX24S00001P1
R-3 DECELERATION RELAY (EU. NA. Aust.) PA24E01001P1
R-6 TIMER UNIT PH25S00002P1
R-7 E/G STOP RELAY PH24S00001P1
R-8 CHARGE INDICATOR RELAY PA24E01001P1
Relay
R-9 CAB / CANOPY WORKING LIGHT RELAY ↑
R-14 SLEW / SWING SELECT RELAY ↑
R-22 SW. SELECT RELAY ↑
R-23 SLEW / SWING PRESERVATION RELAY ↑
R-24 NIBBLER OPEN RELAY ↑
R-25 NIBBLER CLOSE RELAY ↑
23-4
Group Code Part Name Part No.

SE-1 FUEL SENSOR PX52S00006F1
Sensor
SE-2 ENGINE THERMO SENSOR PA24S00003P1
SV-1 LEVER LOCK SOL.
PX35V00003F1
SV-2 2-SPEED SELECT SOL.
SV-3 E/G STOP SOL. E/G accessory (119233–77932)
Solenoid SV-5 POWER SHIFT SOL. (Cooler Spec) YJ35V00004F2
SV-9 NIBBLER OPEN SOL. PY35V00005F1
SV-10 NIBBLER CLOSE SOL. ↑
SV-12 SLEW/SWING SELECT SOL. PE35V00001F2
SW-1 KEY SWITCH PH50S00008S002
SW-2 WORKING LIGHT SW. PV24E01001P2
SW-3 2-SPEED SELECT SW. YN03M01286S002
SW-4 WIPER WASHER SW. PY50S00004P1
SW-5 E/G COOLANT TEMP. SW. PM50S00006P1
SW-6 E/G OIL PRESSURE SW. E/G accessory (114250–39450)
SW-7 HORN SW. YN50E01001P1
SW-9 LEVER LOCK SW. PA50S00001P1
SW-10 HEATER SW. (OPT) PY50S00003P2
SW-11 DECELERATION SW. PM50S00005P1
Switch SW-14 AIR FILTER RESTRICTION SW. PW11P00010S004
SW-23 TRAVEL ALARM SELECT SW. 2479U1190F16
SW-24 TRAVEL RIGHT (FORWARD) PRESSURE SW. GB50S00049F2
SW-25 TRAVEL RIGHT (REVERSE) PRESSURE SW. ↑
SW-26 TRAVEL LEFT (FORWARD) PRESSURE SW. ↑
SW-27 TRAVEL LEFT (REVERSE) PRESSURE SW. ↑
SW-28 SLEW/SWING SELECT SW. LF03M01005F3
SW-30 SLEW/SWING LEVER PRESS. SW. (LEFT) GB50S00049F2
SW-31 SLEW/SWING LEVER PRESS. SW. (RIGHT) ↑
SW-33 NIBBLER OPEN SW. LF03M01005F3
SW-34 NIBBLER CLOSE SW. ↑
(Note) • The part number may be changed owing to modification, use them only for reference.
• NA : North America, AUST : Australia.
23-5
23.2.2 HARNESS & CABLE LIST
Code Name Part No. Remarks

H-1 Inst • Main Harness PH14E01019P3
H-3 Engine Harness PH16E01011P3
H-4 Starter Cable (+) PH13E01074D1
H-5 Battery Ground Cable (–) PH13E01076D2
H-6 Engine Ground Cable PW13E01043D1
H-7 Boom Harness PM15E01012D4
H-8 Key Switch Harness PW50E01002P1
H-9 Canopy Work Light Harness PW11E01026D3
H-10 Boom Work Light Extension Harness PH14E01018D1
H-11 Connection Harness with Cab PW14E01033P1 (OPT.)
H-12 Air Filter Harness PW11E01044D2
H-13 Travel Alarm Harness PW13E01069P1
H-14 Alarm Extension Harness PH13E01078P1
(Note) • The part number may be changed owing to modification, use them only for reference.
23-6
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23-7
23.2.3 ARRANGEMENT DRAWING FOR COMPONENTS & HARNESS
23.2.3.1 Upper Frame Portion
Fig. 23-1 Upper Frame Portion (1/9)
23-8
23-9
23-10
23-11
23-12
23-13
23-14
23-15
23-16
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23-17
23.2.3.2 Engine Portion
Fig. 23-10 Engine Portion (1/2)
23-18
Fig. 23-11 Engine Portion (2/2)
23-19
23.2.3.3 Relay Unit Portion
Fig. 23-12 Relay Unit Portion (1/2)
23-20
Fig. 23-13 Relay Unit Portion (2/2)
23-21
23.2.3.4 Fuel Tank Portion
Fig. 23-14 Fuel Tank Portion (1/2)
23-22
Fig. 23-15 Fuel Tank Portion (2/2)
23-23
23.2.3.5 Work Light Portion

(1) Boom Work Light
23-24
(2) Cab / Canopy Work Light
23-25
23.2.3.6 Cab Portion (OPT)
Fig. 23-16 Cab Portion (OPT) (1/2)
23-26
Fig. 23-17 Cab Portion (OPT) (2/2)
23-27
23.2.3.7 Air Filter Portion (Restriction Switch)
Fig. 23-18 Air Filter Portion
23-28
23.2.3.8 Travel Alarm Portion
CLIP
H-14 :
ALARM
EXTENSION
HARNESS
E-20 :
TRAVEL ALARM
Fig. 23-19 Travel Alarm Portion
23-29
23.2.4 DETAIL OF HARNESS & CABLE
23.2.4.1 Inst • Main Harness (No. H-1)
Fig. 23-20 Inst • Main Harness (No. H-1) — (1/8)
23-30
23-31
23-32
23-33
23-34
23-35
23-36
23-37
23.2.4.2 Engine Harness (No. H-3)
Fig. 23-28 Engine Harness (No. H–3) — (1/2)
23-38
Fig. 23-29 Engine Harness (No. H–3) — (2/2)
23-39
23.2.4.3 Starter Cable (+) (No. H-4)
23.2.4.4 Battery Ground Cable (–) (No. H-5)
PH13E01076D2 740 (29.1")
23.2.4.5 Engine Ground Cable (No. H-6)
23-40
23.2.4.6 Boom Harness (No. H-7)
1520 ( 5’ )
23.2.4.7 Key Switch Harness (No. H-8)
23-41
23.2.4.8 Canopy Working Light Harness (No. H-9)
23.2.4.9 Boom Work Light Extension Harness (No. H-10)
23-42
23.2.4.10 Connection Harness with Cab (No. H-11) (OPT)
23-43
23.2.4.11 Air Filter Harness (No. H-12)
390 (15.4)
23.2.4.12 Travel Alarm Harness (No. H-13)
23-44
23.2.4.13 Alarm Extension Harness(No. H-14)
23-45
[MEMO]
23-46

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23.

Book Code No. S5PJ2311E01

Issue Date of Issue Applicable Machines Remarks

23.1 HOW TO READ CIRCUIT DIAGRAM AND HARNESS CONNECTION

WIRING COLOR TABLE

23.1.2 HARNESS CONNECTION

23.2 ELECTRICAL EQUIPMENT & HARNESS

Group Code Part Name Part No.

Group Code Part Name Part No.

23.2.2 HARNESS & CABLE LIST

Code Name Part No. Remarks

This page is blank because of editing convenience.

23.2.3 ARRANGEMENT DRAWING FOR COMPONENTS & HARNESS

23.2.3.1 Upper Frame Portion

Fig. 23-1 Upper Frame Portion (1/9)

Fig. 23-2 Upper Frame Portion (2/9)

Fig. 23-3 Upper Frame Portion (3/9)

Fig. 23-4 Upper Frame Portion (4/9)

Fig. 23-5 Upper Frame Portion (5/9)

Fig. 23-6 Upper Frame Portion (6/9)

Fig. 23-7 Upper Frame Portion (7/9)

Fig. 23-8 Upper Frame Portion (8/9)

Fig. 23-9 Upper Frame Portion (9/9)

This page is blank for editing convenience.

23.2.3.2 Engine Portion

Fig. 23-10 Engine Portion (1/2)

Fig. 23-11 Engine Portion (2/2)

23.2.3.3 Relay Unit Portion

Fig. 23-12 Relay Unit Portion (1/2)

Fig. 23-13 Relay Unit Portion (2/2)

23.2.3.4 Fuel Tank Portion

Fig. 23-14 Fuel Tank Portion (1/2)

Fig. 23-15 Fuel Tank Portion (2/2)

23.2.3.5 Work Light Portion

(2) Cab / Canopy Work Light

23.2.3.6 Cab Portion (OPT)

Fig. 23-16 Cab Portion (OPT) (1/2)

Fig. 23-17 Cab Portion (OPT) (2/2)

23.2.3.7 Air Filter Portion (Restriction Switch)

Fig. 23-18 Air Filter Portion

23.2.3.8 Travel Alarm Portion

Fig. 23-19 Travel Alarm Portion

23.2.4 DETAIL OF HARNESS & CABLE

23.2.4.1 Inst • Main Harness (No. H-1)

Fig. 23-20 Inst • Main Harness (No. H-1) — (1/8)

Fig. 23-21 Inst • Main Harness (No. H-1) — (2/8)

Fig. 23-22 Inst • Main Harness (No. H-1) — (3/8)

Fig. 23-23 Inst • Main Harness (No. H-1) — (4/8)

Fig. 23-24 Inst • Main Harness (No. H-1) — (5/8)

Fig. 23-25 Inst • Main Harness (No. H-1) — (6/8)

Fig. 23-26 Inst • Main Harness (No. H-1) — (7/8)

Fig. 23-27 Inst • Main Harness (No. H-1) — (8/8)

23.2.4.2 Engine Harness (No. H-3)

Fig. 23-28 Engine Harness (No. H–3) — (1/2)

Fig. 23-29 Engine Harness (No. H–3) — (2/2)

23.2.4.3 Starter Cable (+) (No. H-4)

23.2.4.4 Battery Ground Cable (–) (No. H-5)

PH13E01076D2 740 (29.1")

23.2.4.5 Engine Ground Cable (No. H-6)

23.2.4.6 Boom Harness (No. H-7)