Cityfix Operating Instructions - 09-2004
Cityfix Operating Instructions - 09-2004
Cityfix Operating Instructions - 09-2004
OPERATING INSTRUCTIONS
for
CityFix
WARNING!
Keep operating instructions in vehicle
Enclosed:
Hydraulic diagram
Interlift Inc.
15939 Piuma Ave
Cerritos, CA 90703
(888) 774 5844
(562) 924-8218
(562) 924 8318
Up-dated 02.07.08
32DSSC01B 1. 09-24-04
LIST OF CONTENTS
Section Page
1. General ................................................................................................................. 4
1.1 General View ......................................................................................................... 5
3. Operation .............................................................................................................. 7
3.1 Platform motions .................................................................................................... 7
3.2 Controls and indicators .......................................................................................... 8
3.2.1 Control pendant ..................................................................................................... 8
3.2.2 Power indicator light............................................................................................... 9
3.2.3 Control system circuit breaker ............................................................................... 9
3.2.4 Main circuit breaker ............................................................................................... 9
3.2.5 Manual backup pump .......................................................................................... 10
3.3 Lift operation ........................................................................................................ 11
3.3.1 Loading vehicle .................................................................................................... 11
3.3.2 Unloading vehicle ................................................................................................ 11
3.3.3 Stowing platform .................................................................................................. 12
3.4 Manual operation ................................................................................................. 12
3.4.1 Preparation .......................................................................................................... 12
3.4.2 Deploy platform .................................................................................................... 13
3.4.3 Raise and stow platform ...................................................................................... 14
3.5 Load capacity....................................................................................................... 15
7. CityFix description............................................................................................. 21
7.1 Hydraulic cylinders ............................................................................................... 21
7.2 Hydraulic power unit ............................................................................................ 21
7.3 Manual backup pump handle ............................................................................... 21
7.4 Base plate assembly............................................................................................ 21
7.5 Top and bottom arms........................................................................................... 21
7.6 Vertical arms ........................................................................................................ 21
7.7 Control pendant ................................................................................................... 22
7.8 Roll stop ............................................................................................................... 22
7.9 Platform ............................................................................................................... 22
7.10 Bridge plate.......................................................................................................... 22
7.11 Electrical system .................................................................................................. 22
7.12 Safety devices ..................................................................................................... 22
32DSSC01B 2. 09-24-04
8. Maintenance and care ....................................................................................... 23
8.1 Maintenance schedule ......................................................................................... 23
8.2 Cleaning............................................................................................................... 24
8.3 Lubrication ........................................................................................................... 25
8.4 Hydraulic system.................................................................................................. 26
8.5 Electrical system .................................................................................................. 27
8.6 Decal locations and part numbers ....................................................................... 29
8.7 Troubleshooting ................................................................................................... 30
32DSSC01B 3. 09-24-04
1. General
Before operating the CityFix, read the operating instructions and become familiar
with the functioning and handling of the lift. Operation of the lift by someone who is
not trained can create a hazard for the operator and for people in the vicinity.
Regularly lubricate and service the lift. Malfunctioning of the CityFix is typically due
to insufficient care or improper use.
Refer to Diagram 1. The right, left, front, and rear direction references used in the
text and diagrams refer to viewing the deployed lift from behind the vehicle while
looking towards the front of the vehicle.
The CityFix must not be used to transport people, including the operator.
32DSSC01B 4. 09-24-04
1.1 General view
Major CityFix component references used throughout this manual are illustrated in
Diagram 1. Refer to the CityFix description section for further information on each
component.
REAR
NAMEPLATE LOCATION
VERTICAL ARM
RIGHT
HYDRAULIC CYLINDER
WARNING LIGHT
PLATFORM
FRONT
LEFT ROLLSTOP
Diagram No. 1
32DSSC01B 5. 09-24-04
2. Details of the CityFix
C5052-S000 CityFix
2.1 Nameplate
Refer to Diagram 1 for the location of the nameplate on the lift. Refer to Diagram 2
for the nameplate. The model and serial number information on the lower tear-off
strips are applied to the lift in other locations. Refer to the decal locations and part
numbers diagram for the locations.
29287
CORPORATION
7900 NELSON ROAD, PANORAMA CITY, CA 91402
CARGO LIFT
MAXIMUM LOAD CAPACITY: 500KG
model s.n.
model s.n.
model s.n.
Diagram No. 2
32DSSC01B 6. 09-24-04
3. Operation
Refer to Diagrams 3 and 4 for explanations and descriptions of the four platform
motions. Press an appropriate button on the control pendant to initiate a motion.
Refer to following page for a detailed description of control pendant.
MOTION DESCRIPTION
Platform unfolds, or deploys, out of vehicle
DEPLOY from its stowed position.
Diagram No. 3
STOWED
POSITION
VEHICLE
FLOOR
LEVEL
GROUND
LEVEL
Diagram No. 4
32DSSC01B 7. 09-24-04
3.2 Controls and indicators
Refer to Diagram 5. The lift can be operated with four buttons and a switch located
on the hand-held, hard-wired remote-control pendant. Press an appropriate
button, after turning on the POWER switch, to control each lift motion.
The POWER switch enables the pendant by providing power to it and must be
turned on before the lift can be operated. When turned on, the power switch and
each button illuminate.
Pressing the DEPLOY button unfolds the platform from the vehicle, and pressing
the STOW button folds the platform back into the vehicle. Pressing the LOWER
button lowers the platform towards the ground, and pressing the RAISE button
raises the platform towards the floor.
A button must be held depressed until the motion is completed. Movement of the
platform can be halted at any time by releasing the button.
The pendant is typically stowed on a wall-mounted clip inside the vehicle, near the
lift.
POWER
ENABLE
POWER
OFF ON
DEPLOY STOW
RAISE LOWER
MBB
Diagram No. 5
32DSSC01B 8. 09-24-04
3.2.3 Power indicator light
Refer to Diagram 7. A power indicator light is located on the top surface of the
pump assembly enclosure. It illuminates green when electrical power is present at
the lift. Power to the lift is typically controlled with a switch located on the vehicle
instrument panel.
POWER
INDICATOR LIGHT
CONTROL SYSTEM
CIRCUIT BREAKER
Diagram No. 7
Refer to Diagram 7. The control system 8 amp circuit breaker is located on the
hydraulic pump assembly. When a short circuit occurs in the control system, the
circuit breaker button will pop up. Press the button and then release it to reset.
DO NOT press and hold button if pressing and releasing does not reset power.
Contact an authorized MBB service technician for repair.
Refer to Diagram 8 on following page. The 90 amp main circuit breaker is typically
located in the vehicle engine compartment near the battery and interrupts electrical
power to the lift electrical system when a short circuit occurs. When a short circuit
occurs, the circuit breaker reset tab will rotate 90o clockwise. Rotate tab 90o
counterclockwise to reset. If rotating reset tab does not reset power, DO NOT
press and hold tab. Contact an authorized MBB service technician for repair.
32DSSC01B 9. 09-24-04
RESET
TAB
RESET
Diagram No. 8
Refer to Diagram 9. The manual backup pump can be used to operate the lift
when electrical power is not functional. The manual backup system is intended for
unloading cargo, however, a loaded platform can be raised with a manual pump
handle of appropriate length (630mm minimum).
The manual pump is fastened to the main hydraulic pump assembly, which is
inside the rectangular cover at the left side of the lift. The controls for the pump
consist of a pump handle for raising the platform and a pressure release valve for
lowering it. Instructions for operating the manual pump are provided in the Manual
operation paragraph, which is part of the following Lift operation section. There is
also a decal on the top of the pump housing that illustrates how to operate the
backup pump.
MANUAL BACKUP
PUMP
PUMP
PUMP
HANDLE
RELEASE
VALVE
Diagram No. 9
o A fully charged vehicle battery is necessary for proper lift performance, and the
vehicle engine should be running while the lift is operated.
o Supply power to lift by turning the interlock switch (typically located on the
vehicle instrument panel) to the ON position. The power indicator light (located
on the top surface of the pump assembly enclosure) illuminates when power is
present at lift. Turn interlock switch off after load has been removed from
platform and platform is folded back into the stowed position.
WARNING!
Do not use lift to transport people.
Do not exceed rated load capacity of 500kgs. (1100 LBS)
NOTE: The POWER switch (located on the pendant) enables the pendant by
providing power to it and must be turned on before the DEPLOY, LOWER, or
RAISE buttons are pressed.
1. Deploy platform - Press and hold DEPLOY button until platform completely
unfolds from vehicle.
2. Lower platform - Press and hold LOWER button until platform contacts
ground.
3. Place cargo in center of platform. Be certain cargo does not extend beyond
platform perimeter and does not interfere with operation of roll stop.
CAUTION!
If a heavy load is placed on the platform that could have a tendency to
move, then secure the load by lashing it to the platform.
4. Raise platform - Press and hold RAISE button until platform rises and stops
automatically at floor level.
WARNING!
Do not use lift to transport people.
Do not exceed rated load capacity of 500kgs. (1100 LBS)
1. Deploy platform - Press and hold DEPLOY button until platform completely
unfolds from vehicle at floor level. Verify that platform is at vehicle floor level
and roll stop is up and locked.
CAUTION!
If a heavy load is placed on the platform that could have a tendency to
move, then secure the load by lashing it to the platform.
3. Lower platform - Press and hold LOWER button until platform settles at
ground level and roll stop opens completely.
NOTE: The POWER switch (located on the pendant) enables the pendant by
providing power to it and must be turned on before the RAISE or STOW buttons
are pressed.
1. If platform is at ground level, press and hold RAISE button until platform rises
and stops automatically at floor level.
2. Press and hold STOW button until platform folds completely into vehicle.
CAUTION!
Be certain platform has folded completely before attempting to close rear
doors. To prevent damage to doors, do not release button until hydraulic
pump motor has stopped operating.
WARNING!
Do not use lift to transport people.
Do not exceed rated load capacity of 500kgs.
3. Place cargo in center of platform. Be certain cargo does not extend beyond
platform perimeter and does not interfere with operation of rollstop.
CAUTION!
If a heavy load is placed on the platform that could have a tendency to
move, then secure the load by lashing it to the platform.
4. Raise platform - Press and hold both BUTTONS 2 and 3 until platform rises
and stops automatically at floor level.
WARNING!
Do not use lift to transport people.
Do not exceed rated load capacity of 500kgs. (1100 LBS)
CAUTION!
If a heavy load is placed on the platform that could have a tendency to
move, then secure the load by lashing it to the platform.
3. Lower platform - Press and hold BUTTON 2 until platform settles at ground
level and roll stop opens completely.
1. If platform is at ground level, press and hold both BUTTONS 2 and 3 until
platform rises and stops automatically at floor level.
2. Press and hold both BUTTONS 1 and 3 until platform folds completely into
vehicle.
The lift can be operated manually if electric power is not available to the lift.
WARNING!
Do not use lift to transport people.
3.4.1 Preparation
o Be certain vehicle is on a level area and away from traffic. Allow adequate
space for platform movement.
WARNING!
If using lift to raise a loaded platform, be certain that the pump handle length
is at least 630mm.
o Follow the safety precautions in the Safety notes for operation section
when using the manual backup system.
1. Refer to Diagram 10. Insert notched end of pump handle into round hole on
rear face of hydraulic pump cover and engage pressure release valve.
Diagram No. 10
32DSSC01B 14. 09-24-04
CAUTION!
Do not open pressure release valve more than 1/4-turn. Opening valve
further may cause it to disengage from pump body, which will disable pump.
3. Transfer cargo from vehicle interior to center of platform. Be certain cargo does
not extend beyond platform perimeter and that it cannot interfere with operation
of roll stop.
4. Lower platform by again turning pressure release valve 1/4 turn counter-
clockwise. Hold valve open until platform settles at ground level. Turn handle
clockwise to close valve but do not over-tighten valve.
1. Refer to Diagram 11. Verify that pressure release valve is closed, but do not
over-tighten valve.
Diagram No. 11
2. Refer to Diagram 12. Insert pump handle into pump handle socket (accessible
through vertical slot on rear side of pump cover). Operate pump to raise
platform.
Diagram No. 12
3. Continue to operate pump until platform rises above the interior floor level and
completely folds into the stowed position.
CAUTION!
Refer to Diagram 13. Do not locate load within 76mm (3”)of rear edge of
platform. The load might interfere with the bridge plate when the platform is
at floor level (the front edge of the bridge plate is supported by the rear edge
of the platform when the platform is at floor level).
Do not place any part of load on roll stop. The roll stop is not designed to be
a load-supporting component.
Refer to Diagram 13. The lift has a maximum weight capacity rating (Q max) of
500kgs when the load is placed at the center of the platform (the center of the
platform is marked with a small circle). The capacity decreases if the load is
placed closer to the rollstop or off to either side. Under normal work conditions,
place the load towards the rear of the platform and center it between the left and
right sides of the platform.
LOAD CAPACITY
DECAL
REAR EDGE
DO NOT PLACE LOAD
IN THIS AREA
ROLLSTOP
CENTER OF
PLATFORM
Diagram No. 13
Read and observe the operating instructions and safety notes prior to lift operation.
Important safety points in these operating instructions are marked with this symbol.
The CityFix is very safe if used properly and in accordance with the operating
instructions. However, these hazards are possible if the CityFix is improperly used:
The CityFix is designed only for loading and unloading goods. Any other use, such
as transporting people (including the operator) is inappropriate. The manufacturer
is not liable for any damage resulting from improper use; the user alone bears the
risk.
Proper use also includes following the manufacturer operating, maintenance, and
service instructions.
The CityFix must be used, maintained, and serviced by persons over the age of 18
years. These persons must be familiar with the CityFix and aware of the dangers
involved. The operator must have the written permission of the employer before
operating the CityFix.
Alterations to the CityFix carried out by the user results in the manufacturer no
longer being liable for any resulting consequential damage.
o Check the operating safety and roadworthiness of the CityFix before each use.
o In addition to observing the notes in these operating instructions, also follow the
generally acknowledged safety and accident prevention regulations.
o Observe and follow the relevant regulations when traveling on public roads.
o Do not use the CityFix if it is defective, particularly if safety devices are out of
order.
o Check the immediate area below and around the platform (i.e., for the presence
of children) before use.
Refer to Diagram 15. The CityFix must not be used to transport people, including
the operator.
Diagram No. 15
4.5 Maintenance
o High-pressure fluids (hydraulic oil) that are emitted under great pressure, can
pierce the skin and cause serious injury. In case of such an accident, seek a
physician immediately because there is risk of serious infection.
o Dispose of hydraulic oil and maintenance disposables (rags, towels, cans, etc)
in a manner consistent with local regulations.
o Verify that interlock switch (main lift power switch) is off before climbing within
the working range of the CityFix. Protect interlock switch against being
inadvertently switched on again. If necessary, support the platform.
o Use only original spare parts that are approved by the manufacturer, because
these parts meet the technical requirements for the lift. The manufacturer
accepts no liability for other parts used.
CAUTION!
The following safety notes can lead to serious injury or material damage if
not followed.
The following safety precautions must be complied with at all times when operating
lift:
o Refer to Diagram 16. Loading and unloading cargo when vehicle is on sloped
ground is hazardous. Load and operate lift with vehicle parked on level ground.
Diagram No. 16
o Vehicle must be safely parked with parking brake set before using lift. Place
wheel chocks under tires, if necessary.
o Inspect lift before use. DO NOT use lift if an unsafe condition exists, or unusual
noises or movements are noticed.
o When unloading cargo from vehicle, verify that platform is at same height as
floor and rollstop is up and locked.
o Be certain cargo fits safely on platform; it must not extend beyond edges or
interfere with operation of rollstop.
o Keep arms, legs, and clothing away from moving lift parts.
Diagram No. 17
o Do not leave platform outside of vehicle; return lift to stowed position after use.
o Read and comply with all warning labels and symbols affixed to lift.
o All safety and warning devices must be present and in working order. They
must be checked daily before starting work. Any fault must be immediately
remedied.
o Observe the area between the platform and road surface where crushing could
occur.
o Never move freight from the truck loading area before you are sure that the
platform is in the uppermost position.
o Avoid placing load off to one side of platform whenever possible. The
permissible load in this case is 50% of the maximum load.
o If the CityFix malfunctions, stop using lift and disable it from further use.
Contact an authorized repair technician.
Inspect lift before each use and verify that the following conditions are met before
operating:
o All functions operate properly. Do not use lift if unusual noises or movements
exist, and contact a MBB authorized service technician for inspection.
o General appearance and lubrication are satisfactory and all fasteners are tight.
6. Improper use
o to transport people
o to push loads
o to clear snow
This CityFix assists with loading cargo into small utility vehicles. The lift has a load
capacity of 500 kilograms (when load is placed near center of platform), and is operated
by the driver with a hand-held controller. The lift is not designed for transporting people.
The platform is 864mm wide by 1200mm long, and has a heavy-duty load-bearing
surface. The parallel arm design maintains the platform in a horizontal position as it
moves through its range of motion. A plate automatically bridges the gap between the
raised platform and vehicle floor. An electro-hydraulic pump provides the force required
to lift the platform.
Refer to Diagram 1 for the location on the lift of the following components.
Contains hydraulic pump driven by electric motor that produces pressure to raise
and fold lift, and a pressure release valve to unfold and lower it. Also contains
deceleration control valve, pressure release valve, manual backup pump, and
manual pressure release valve.
Use to operate manual back-up pump and manual pressure release valve when
normal electrical power is not available. Handle is stored on clips fastened to front
side of hydraulic power unit enclosure.
Welded base assembly of lift that is securely bolted to vehicle floor. Provides pivot
points for top and bottom arms.
Pairs of upper and lower parallel links that connect vertical arms to base assembly.
Hydraulic cylinders attach to baseplate and to outer end of top arm. Parallel
arrangement maintains platform in a horizontal attitude as it is raised and lowered.
Maintenance-free pivot bushings are employed at inner and outer ends of each
arm.
Arms connect outer ends of top and bottom arms to platform. Included in each
arm are links that fold, or unfold, platform. A warning light is present on front face
of each arm.
32DSSC01B 23. 09-24-04
7.7 Control pendant
Front barrier helps to prevent cargo from sliding off front of platform during platform
movement. Rollstop opens automatically when platform contacts ground, and
closes when platform lifts away from ground. Rollstop has a light-reflecting strip on
its face for nighttime visibility.
7.9 Platform
Rectangular area where cargo is placed. Roll stop pivots on front edge. Front
edge of bridge plate rests on rear edge of platform. Curbs along sides of platform
help to keep cargo confined to platform area. Curbs have light reflecting strips on
outer faces for nighttime visibility.
Plate that bridges gap between base plate and platform when platform is at floor
height. It pivots on front edge of base plate and rises out of the way when platform
folds into vehicle.
The 12VDC electrical current for the pump motor and electrical control circuits are
supplied from the vehicle. Refer to the electrical system diagram in the
Maintenance and care section.
o Warning lights located on each vertical arm are optional and may not be
present on your lift
Regular maintenance of the MBB CityFix will help optimize its performance and
reduce the need for repairs.
CAUTION!
Place a sturdy object under platform when it is elevated and maintenance is
performed on it. Do not rely on hydraulic system to hold platform in place.
CAUTION!
Dispose of hydraulic oil and maintenance disposables (rags, towels, cans,
etc) in a manner consistent with local regulations.
SERVICE
ACTION TO PERFORM
POINT
DAILY SAFETY CHECK
Overall Listen for abnormal noises as lift operates (i.e. grinding or binding
condition noises.)
Control Verify that control pendant is undamaged and its cable connections are
pendant secure.
TWO WEEK SAFETY CHECK
Overall Inspect underside of vehicle for anything that is out of place.
condition
Electrical Inspect electrical wiring for frayed wires, loose connectors, etc.
wiring
Decals Verify that lift decals are properly affixed, clearly visible, and legible.
Replace defective decals, if present.
Lift mounting Verify that lift mounting and support points are undamaged.
points Verify that mounting hardware is sufficiently tight.
Main lifting Verify that lifting arm pins are properly installed, free from damage, and
pivots locked in position.
Platform Verify that platform moves freely, without binding, and does not wobble.
pivot points
Bridgeplate Verify that bridge plate operates without binding during lift functions.
Verify bridge plate rests flat against rear edge of platform.
Rollstop Verify that roll stop opens completely when platform contacts
ground.
Verify that roll stop closes and locks when platform leaves ground.
Diagram No. 18
8.2 Cleaning
Regular cleaning with mild soap (i.e. dish soap or car wash liquid) and drying
thoroughly will protect the lift painted surfaces. Cleaning is especially important in
areas where roads are salted in winter.
CAUTION!
Do not lubricate motor or other electrical components. Lubricating oil will
accumulate dust and dirt that may create short circuits.
HINGE 1
TORSION SPRINGS
1
(BOTH SIDES)
"A"
DETAIL "A"
"B"
KNUCKLE LINKS
1
(BOTH SIDES)
TORSION SPRINGS
1
(BOTH SIDES)
DETAIL "B"
Diagram No. 19
Refer to Diagram 20 for the overall hydraulic schematic of the CityFix. Note that a
test port is provided for connecting a gauge to monitor system pressure.
CAUTION!
Add only Texaco 01554 Aircraft Hydraulic Oil or equivalent U.S. mil spec
H5606G fluid to system.
HYDRAULIC HYDRAULIC
CYLINDER, CYLINDER,
LEFT RIGHT
TEST PORT
PRESSURE
RELIEF VALVE
MANUAL
RELEASE B+
VALVE GEAR
DOWN PUMP
VALVE
Diagram No. 20
Limit switch actuation is illustrated in Diagram 21, which shows the state of the
three limit switches as the platform travels from fully stowed, to vehicle floor level,
and to ground level. The solid line indicates that the normally closed portion of
switch is carrying current, and the open line indicates that the normally open
portion of switch is carrying current.
The dotted lines show switch states beyond normal travel boundaries of platform.
This is useful in showing the operation of switches that change states at folded or
ground level positions. For proper operation of lift, the switch actuations must
overlap as shown.
UP & IN ENABLE
IN ENABLE
Diagram No. 21
8.5.2 Electrical Symbols
8A
raise enable
stow enable
- COMMON
- NORMALLY
CLOSED
- NORMALLY
OPEN
SPDT SOLENOID
SWITCH SWITCH
CONTACTS
Diagram No. 22
32DSSC01B 29. 09-24-04
8.5.3 Electrical Schematic
Diagram 23 illustrates the lift and related electrical circuitry plus pendant circuitry
for both the hand-held control pendant and the control panel.
PUMP
PUMP
8A
INTERLOCK
4AWG BLK
WHT 3
RED 1
BLK 4
SWITCH DOWN VALVE
2
INTERLOCK PUMP
INDICATOR
16AWG
LIGHT (R)
90A
PUMP
8A (P)
PLATFORM
PLATFORM
12V-8A
FAST
LOWER
RAISE
1 RED
2 GRN
3 ORG
4 BLK
WHT/
SLOBLOCK
BUTTON 1 DIODES
1
BUTTON 3
2 BLK
ORG
PENDANT
3 raise enable
(P)
CONTROL PENDANT
lower enable
POWER
deploy enable
STOW
1
RAISE 1
2
2 ORG
PENDANT
PENDANT
3
LOWER 3 WHT
(R)
(P)
4
4 GRN
5
DEPLOY 5
6
6 BLK
All wire is 18 gauge unless
specified otherwise.
Diagram No. 23
32DSSC01B 30. 09-24-04
8.6 Decal locations and part numbers
Refer to Diagram 24 and verify decals are properly affixed and located as shown.
MANUAL OPERATION C OR PORA TION
OPERATION MANUELLE
a
C AR GO LIFT
PN 29287 Q
APPLY TO HYDRAULIC CYLINDERS (ONLY MBB
REPLACEABLE) Q max 500 Kg
a (mm) Q (Kg)
600 500
1 2 750 460
MANUAL LIFT 900 420
OPERATION CAPACITY, 1050 380
OPERACION MANUAL
HANDBEDIEUNG
PN 29267 1200mm 1200 340
PN 29286
(PN 29287)
NO PEOPLE
MANUAL RELEASE VALVE PN 32139
PN 26292
(PN 29287)
(PN 30111)
PN 32140
MBB
P OWER
OFF ON
MBB
P OWER
SAFETY REFLECTOR, 30"
OFF ON
PN 30114
MBB
OFF ON
WARNING!
The troubleshooting guide does not incorporate routine safety precautions or
preliminary procedures. During the warranty period a trained, authorized
service technician must perform troubleshooting. After the warranty period,
it is recommended that troubleshooting continue to be performed by an
authorized service technician.
CAUTION!
Disconnect the negative cable from the battery before working on the
electrical system.