BL-CB22-1214 - 04-11-2019
4-3
Table 4-1 Troubleshooting Chart - Continued
MALFUNCTION
PROBABLE CAUSE
CORRECTIVE ACTION
TROUBLE WITH LIFTING OR
LOWERING - Continued
Forks lift, but will not go down.
Defect in hydraulic system
For trucks up to Serial # S2320148
:
Check lowering control switch in
control head, lowering relays (15
& 16,
) & lowering
solenoid (20,
).
Replace as required.
Load will not hold
a. Oil bypassing internally in con-
trol valve
Replace or repair valve assembly
(21,
).
b. Worn lift cylinder.
Replace cylinder.
Platform does not lift to top. Pump
motor runs.
a. Oil level too low.
Add oil to reservoir.
b. Load larger than capacity.
Refer to nameplate on side of mast
for maximum load capacity.
c. Batteries need charging.
Change batteries.
Forks creep downward under load
when in a raised position.
Leak in hydraulic system, lift cylin-
der or lowering valve.
Check for leaking fitting in hydraulic
line and repair as required.
Repack lift cylinder or replace or
repair valve assembly (21,
).
MISCELLANEOUS
Steering arm does not return to
the upright position.
a. Week return spring.
Replace spring.
b. Binding.
Check and free the binding item.
Verify that the cable has not been
damaged. Repair or replace as
needed.
Truck moves forward when arm is
pulled down.
a. Belly-button switch defective.
Check for short, and repair or
replace as necessary.
b. Short in control head.
Check wiring and repair as required.
Steering arm jerks excessively
starting or stopping the truck.
Drive wheel worn.
Replace drive wheel if worn to within
3/8 inch of hub.
Drive motor is jerky.
Motor internally damaged or worn.
Replace motor.
Summary of Contents for CB22
Page 9: ...BL CB22 1214 04 11 2019 2 3 Figure 2 2 Sample of Operator Check List R6479 ...
Page 12: ...2 6 BL CB22 1214 04 11 2019 NOTES ...
Page 18: ...3 6 BL CB22 1214 04 11 2019 NOTES ...
Page 34: ...4 16 BL CB22 1214 04 11 2019 NOTES ...
Page 39: ...BL CB22 1214 04 11 2019 5 5 Figure 5 4 Cap Assembly R6878A ...
Page 42: ...6 2 BL CB22 1214 04 11 2019 Figure 6 1 Transmission Motor Brake Assembly R6879A ...
Page 44: ...7 2 BL CB22 1214 04 11 2019 Figure 7 1 Transmission Motor Brake Assembly R6879A ...
Page 45: ...BL CB22 1214 04 11 2019 7 3 Figure 7 2 Load Wheels R6882A ...
Page 46: ...7 4 BL CB22 1214 04 11 2019 NOTES ...
Page 48: ...8 2 BL CB22 1214 04 11 2019 Figure 8 2 Elevation System Telescopic R6883 ...
Page 50: ...8 4 BL CB22 1214 04 11 2019 Figure 8 3 Mast TRIMAST R6884A ...
Page 52: ...8 6 BL CB22 1214 04 11 2019 NOTES ...
Page 54: ...9 2 BL CB22 1214 04 11 2019 Figure 9 1 Hydraulic System R8009 ...
Page 56: ...9 4 BL CB22 1214 04 11 2019 Figure 9 3 Hydraulic System TRIMAST R6888A ...
Page 58: ...9 6 BL CB22 1214 04 11 2019 Figure 9 4 Elevation System Telescopic R6883A ...
Page 59: ...BL CB22 1214 04 11 2019 9 7 Figure 9 5 Lift Cylinder Telescopic R6889A ...
Page 61: ...BL CB22 1214 04 11 2019 9 9 Figure 9 6 Elevation System TRIMAST R6884A ...
Page 62: ...9 10 BL CB22 1214 04 11 2019 Figure 9 7 Free Lift Cylinder TRIMAST R6890A ...
Page 64: ...9 12 BL CB22 1214 04 11 2019 Figure 9 8 Secondary Lift Cylinder TRIMAST R6891 ...
Page 67: ...BL CB22 1214 04 11 2019 9 15 Figure 9 10 Tilt Cylinder R6893 ...
Page 68: ...9 16 BL CB22 1214 04 11 2019 NOTES ...
Page 72: ...10 4 BL CB22 1214 04 11 2019 Figure 10 3 Electrical Panel R6478 R6895A ...
Page 74: ...10 6 BL CB22 1214 04 11 2019 Figure 10 4 Transmission Motor Brake Assembly R6879A ...
Page 75: ...BL CB22 1214 04 11 2019 11 1 SECTION 11 OPTIONAL EQUIPMENT ...
Page 76: ...11 2 BL CB22 1214 04 11 2019 NOTES ...
Page 78: ...12 2 BL CB22 1214 04 11 2019 Figure 12 1 Steering System R6876A ...
Page 90: ...12 14 BL CB22 1214 04 11 2019 Figure 12 7 Transmission Motor Brake Assembly R6879A ...
Page 94: ...12 18 BL CB22 1214 04 11 2019 Figure 12 9 Transmission Used from Serial 327121134 DE_0050 ...
Page 96: ...12 20 BL CB22 1214 04 11 2019 Figure 12 10 Compartment R6880 ...
Page 98: ...12 22 BL CB22 1214 04 11 2019 Figure 12 11 Frame R6881 ...
Page 100: ...12 24 BL CB22 1214 04 11 2019 Figure 12 12 Load Wheels R6882A ...
Page 102: ...12 26 BL CB22 1214 04 11 2019 Figure 12 13 Elevation System Telescopic ...
Page 104: ...12 28 BL CB22 1214 04 11 2019 Figure 12 14 Elevation System Telescopic Continued R6883A ...
Page 106: ...12 30 BL CB22 1214 04 11 2019 Figure 12 15 Elevation System Three Stage R6884A ...
Page 108: ...12 32 BL CB22 1214 04 11 2019 Figure 12 16 Elevation System Three Stage Continued R6884A ...
Page 110: ...12 34 BL CB22 1214 04 11 2019 Figure 12 17 Lift Carriage Two Stage R6815A ...
Page 112: ...12 36 BL CB22 1214 04 11 2019 Figure 12 18 Lift Carriage Three Stage R8008 ...
Page 114: ...12 38 BL CB22 1214 04 11 2019 Figure 12 19 Chain Assembly R6818 ...
Page 122: ...12 46 BL CB22 1214 04 11 2019 Figure 12 23 Pump Motor Used from serial number 324200459 R8217 ...
Page 124: ...12 48 BL CB22 1214 04 11 2019 Figure 12 24 Hydraulic System Telescopic R6887A ...
Page 130: ...12 54 BL CB22 1214 04 11 2019 Figure 12 27 Tilt Cylinder Mounting R6892 ...
Page 132: ...12 56 BL CB22 1214 04 11 2019 Figure 12 28 Lift Cylinder Telescopic R6889A ...
Page 134: ...12 58 BL CB22 1214 04 11 2019 Figure 12 29 Free Lift Cylinder Three Stage R6890 ...
Page 140: ...12 64 BL CB22 1214 04 11 2019 Figure 12 32 Tilt Cylinder Used up to Serial S2118062 R6893A ...
Page 142: ...12 66 BL CB22 1214 04 11 2019 Figure 12 33 Tilt Cylinder Used from Serial S2118063 R8012 ...
Page 146: ...12 70 BL CB22 1214 04 11 2019 Figure 12 35 Electrical System Used from Serial S2320149 R8013 ...
Page 148: ...12 72 BL CB22 1214 04 11 2019 Figure 12 36 Electrical Panel Used up to Serial S2320148 R6895A ...
Page 150: ...12 74 BL CB22 1214 04 11 2019 Figure 12 37 Electrical Panel Used from Serial S2320149 R8014 ...
Page 152: ...12 76 BL CB22 1214 04 11 2019 Figure 12 38 Drive Motor R8015 ...
Page 154: ...12 78 BL CB22 1214 04 11 2019 Figure 12 39 Wiring Harness Used up to Serial S2320148 R6896A ...
Page 156: ...12 80 BL CB22 1214 04 11 2019 Figure 12 40 Wiring Harness Used from Serial S2320149 R8016 ...
Page 158: ...12 82 BL CB22 1214 04 11 2019 Figure 12 41 Wiring Cables Used up to Serial S2320148 R6897A ...
Page 160: ...12 84 BL CB22 1214 04 11 2019 Figure 12 42 Wiring Cables Used from Serial S2320149 R8017 ...
Page 168: ...Big Lift LLC ...