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BL-GL22-1119 - 11-20-2019
4-3
Table 4-1 Troubleshooting Chart - Continued
MALFUNCTION
PROBABLE CAUSE
CORRECTIVE ACTION
TROUBLE WITH BRAKING
Truck does not slow with brake, or
brake does not engage.
a. Defective deadman switch.
Check deadman switch for
continuity. If none found when
the control arm is in the brake
position, replace switch.
b. Defective electric brake.
Adjust or replace brake.
Brake will not release.
a. Air gap more than 0.01 in
(0.25mm).
Adjust.
b. Brake temperature above
281
F (140
C).
Allow to cool and check air gap.
c. Open brake circuitry or wiring.
Make voltage checks.
Brake drags.
Defective electric brake.
Replace.
Brake grabs.
a. Incorrect stopping distance
adjustment.
Adjust.
b. Defective electric brake.
Replace.
Abnormal noise and chatter when
brake is applied.
Defective electric brake.
Replace.
TROUBLE WITH LIFTING OR
LOWERING
Oil sprays or flows from the top of
the lift cylinder.
Defective packing in lift cylinder
Repair lift cylinder.
Squealing sounds when lifting
forks.
a. Oil level too low.
Identify oil leak and fill reservoir.
b. Dry channels in mast.
Apply grease.
c. Defective mast or carriage roll-
ers
Replace rollers.
Forks do not lift to top.
a. Oil level too low.
Add oil to reservoir.
b. Load larger than capacity.
Refer to I.D.plate for capacity.
Weak, slow or uneven action of
hydraulic system.
a. Defective pump or relief valve.
Check pressure. Adjust as
necessary.
b. Worn lift cylinder.
Replace cylinder.
c. Load larger than capacity.
Refer to I.D.plate for capacity.
d. Defective lift motor solenoid.
Replace solenoid on pump motor.
e. Battery charge low.
Charge battery.
Forks do not lift, pump motor does
not run.
a. Battery is dead or discon-
nected.
Check and recharge if required.
b. Defective wiring.
Check and repair as required.
c. Defect in electrical system for
operating pump motor.
Check lift switch in control head,
as well as the solenoid.
Summary of Contents for 989021
Page 9: ...BL GL22 1119 11 20 2019 2 3 Figure 2 2 Sample of Operator Check List R8549 ...
Page 12: ...2 6 BL GL22 1119 11 20 2019 NOTES ...
Page 18: ...3 6 BL GL22 1119 11 20 2019 NOTES ...
Page 38: ...4 20 BL GL22 1119 11 20 2019 NOTES ...
Page 43: ...BL GL22 1119 11 20 2019 5 5 Figure 5 4 Cap Assembly EF_0007 ...
Page 46: ...6 2 BL GL22 1119 11 20 2019 Figure 6 1 Transmission Motor Brake Assembly EF_0004 ...
Page 48: ...7 2 BL GL22 1119 11 20 2019 Figure 7 1 Transmission Motor Brake Mounting EF_0004 ...
Page 50: ...7 4 BL GL22 1119 11 20 2019 NOTES ...
Page 55: ...BL GL22 1119 11 20 2019 9 3 Figure 9 2 Elevation System Telescopic EF_0016 ...
Page 58: ...10 2 BL GL22 1119 11 20 2019 Figure 10 1 Electrical System Telescopic EF_0011 ...
Page 61: ...BL GL22 1119 11 20 2019 11 1 SECTION 11 OPTIONAL EQUIPMENT N ABL GL22 1119 11 20 2019 ...
Page 62: ...11 2 BL GL22 1119 11 20 2019 NOTES ...
Page 64: ...12 2 BL GL22 1119 11 20 2019 Figure 12 1 Frame System Telescopic Mast EF_0002 ...
Page 66: ...12 4 BL GL22 1119 11 20 2019 Figure 12 2 Caster Assembly EF_0003 ...
Page 68: ...12 6 BL GL22 1119 11 20 2019 Figure 12 3 Transmission Motor and Brake EF_0004 ...
Page 70: ...12 8 BL GL22 1119 11 20 2019 Figure 12 4 Steering System EF_0005 ...
Page 72: ...12 10 BL GL22 1119 11 20 2019 Figure 12 5 Control Head EF_0006 ...
Page 74: ...12 12 BL GL22 1119 11 20 2019 Figure 12 5 Cap Assembly EF_0007 ...
Page 76: ...12 14 BL GL22 1119 11 20 2019 Figure 12 6 Hydraulic System EF_0008 ...
Page 78: ...12 16 BL GL22 1119 11 20 2019 Figure 12 7 Pump and Motor Assembly EF_0010 ...
Page 80: ...12 18 BL GL22 1119 11 20 2019 Figure 12 8 Lift Cylinder EF_0009 ...
Page 82: ...12 20 BL GL22 1119 11 20 2019 Figure 12 9 Telescopic Mast Lift System EF_0016 ...
Page 84: ...12 22 BL GL22 1119 11 20 2019 Figure 12 10 Telescopic Mast Chain Assembly EF_0017 ...
Page 86: ...12 24 BL GL22 1119 11 20 2019 Figure 12 11 Fork Carriage EF_0018 ...
Page 88: ...12 26 BL GL22 1119 11 20 2019 Figure 12 12 Electrical System EF_0011 ...
Page 90: ...12 28 BL GL22 1119 11 20 2019 Figure 12 13 Wiring Harness EF_0012 ...
Page 92: ...12 30 BL GL22 1119 11 20 2019 Figure 12 14 Wiring Cables EF_0013 ...
Page 94: ......