BL-CB33-0115 - 03-01-2018 4-3
TROUBLE WITH LIFTING OR
LOWERING - Continued
Forks lift, but will not go down. Defect in hydraulic system Check lowering control switch in
control head, & lowering sole-
noid. Replace as required.
Load will not hold a. Oil bypassing internally in con-
trol valve
Replace pump & motor assembly.
b. Worn lift cylinder. Replace cylinder.
Forks 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 capac-
ity.
c. Batteries need charging. Charge 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 hydrau-
lic line and repair as required.
Repack lift cylinder or replace
or pump & motor assembly.
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.
Control 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.
TRUPOUBLE WITH STEERING
a. Faulty fuse. Test fuses.
b. Check all wiring. A loose con-
nection may be the cause of
malfunction.
Tighten all loose connections
before further troubleshooting.
c. Defective potentiometer. Check and replace potentiometer
if defective.
d. Defective controller. Check operation and replace if
necessary.
d. Defective steering motor. Check wiring and repair as
required.
To Next Page
Loading...
