Page
8
of
26
©Copyright 2018 WESCO Industrial Products, LLC. Specifications subject to change. Not responsible for errors or omissions.
Electric Non-Telescoping High Lift Truck
(Part # 272460 & 272461)
Instruction Manual
ATTENTION: TO INSURE SAFE AND EASY USE OF YOUR HIGH LIFT TRUCK,
READ THESE INSTRUCTIONS ENTIRELY BEFORE USING.
8. TROUBLESHOOTING
Failure
Cause
Solution
1
Motor and hydraulic
pump do not
operate
Defective fuse FU1 and/or FU2
Replace the fuse
Loose or unconnected plug
Reconnect
Motor is burned out
Replace motor
2
The high-lift pallet
truck does not lift
the load, although
the pump is working
perfectly
Load is too heavy, overload valve is actuated,
Control lever is out of adjustment
Reduce the load
Lowering valve does not close any more or the
valve face is not sealed because of dirt, piston
rod is starting to rust
Clean or replace it
Electric circuit is disconnected
Check the wiring
Electromagnetic switch KM is defective
Replace the contactor KM
Lifting switch is obstructed, resp. defective
Check resp. replace the
lifting switch
Hydraulic pump does not work
Check the pump
3
Raised load is
lowered on its own.
Leakage in the hydraulic system
Seal
Lowering valve does not close any more or the
valve unit is not sealed because of dirt
Clean or replace
Incorrect valve set-up.
Adjust lowering valve
Pressure relief valve (pump) is leaky (pump
turns slowly backwards.)
Clean or replace the valve
4
Oil loss on hydraulic
cylinder
Sealing elements are worn
Replace sealing elements
5
The raised load is
lowered too slowly
Temperature too low – the hydraulic system oil
is too thick
Find a warmer location
6
Fork does not raise
to upper position
Insufficient oil in the tank
Refill with oil (while the fork
is lowered)
Battery discharged
Charge the battery
7
Battery capacity too
low
Battery is not charged enough
Recharge
Battery is defective
Replace the battery
8
Battery cannot be
charged
Fuse FU2 is defective
Replace FU2
Battery resp. charger defective
Replace battery resp.
charger
9
Battery discharges
too quickly
Silted battery
Replace battery
Sulphating or other failure in the battery.
Replace battery
Accidental ground contact in the electric
system or battery.
Repair or replace battery
