Blue Giant EPJ-30, Руководство пользователя, Страница: 20 / 94

Table 4-1 Troubleshooting Chart - Continued
MALFUNCTION PROBABLE CAUSE CORRECTIVE ACTION
TROUBLE WITH BRAKING -
Continued
Brake drags. Defective electric brake (35, Fig-
ure 12-7 ).
Replace.
Brake grabs. Defective electric brake (35, Fig-
ure 12-7 ).
Replace.
Abnormal noise and chatter when
brake is applied.
Defective electric brake (35, Fig-
ure 12-7 ).
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.
b. Lift linkage binding. Apply grease.
Forks do not lift to top. Oil level too low. Add oil to reservoir.
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 (2, Figure 12-
14 ) on electrical panel.
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.
Forks do not lift, motor runs. Defect in hydraulic system. Check the oil level in the reservoir
and the oil lines to the lift cylin-
der, and repair as required. If
normal, check the hydraulic
pump, and relief valve. Repair,
or adjust.
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