H-4709
BIG JOE
ELECTRIC
®
PALLET TRUCK
MALFUNCTION
TRUCK AND HYDRAULIC
SYSTEM WILL NOT OPERATE
Truck will not travel, nor
will lift system operate.
TRUCK DOES NOT OPERATE
FORWARD OR IN REVERSE
Truck does not travel
forward or in reverse. All
other functions operate
normally.
Truck travels forward,
but not in reverse.
Truck travels in reverse,
but not forward.
Truck travels forward
and in reverse at lower
speeds; will not travel at
high speed.
PAGE 1 OF 13
1-800-295-5510
uline.com
TROUBLESHOOTING
PROBABLE CAUSE
a. Fuse blown.
b. Battery dead or
disconnected.
c. Key switch defective.
d. Defective wiring.
a. A loose connection may be
the cause of malfunction.
b. Defective deadman switch.
c. Defective controller.
d. Defective potentiometer.
Defective potentiometer.
Defective potentiometer.
Defective potentiometer.
Pour le français, consulter les pages 9-13
CORRECTIVE ACTION
Check fuse and replace if necessary.
Check battery connections and battery
voltage.
Bypass key switch to determine if it is
malfunctioning.
Check for open circuit. Repair as required.
Tighten all loose connections before further
troubleshooting.
Check and replace switch if defective.
Check for proper operation and replace if
defective.
Check and replace potentiometer if defective.
Check and replace potentiometer if defective.
Check and replace potentiometer if defective.
Check and replace potentiometer if defective.
Para Español, vea páginas 4-8
0321 TH-4709