19
c.
Check and refill hydraulic oil
•
Ensure forks are in lowered position.
•
Lay pallet truck on either side. Position drain plug of hydraulic cylinder up.
•
Remove the screw plug.
•
Add hydraulic oil until level of oil is at bottom of hole.
•
Replace drain plug, upright the truck
d.
Checking electrical fuses
9. TROUBLE SHOOTING
If the truck has malfunctions follow the instructions, mentioned under chapter 6f.
Table 2: Trouble shooting
No
Symptom
Possible Causes
Corrective action
1
Motor and
hydraulic
pump does
not operate
•
Defective fuse FU1 or FU2
•
Loose or unconnected plug
•
Defect motor
•
Replace the fuses
•
Reconnect
•
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.
•
Lowering valve does not close any
more or the valve face is not sealed
because of dirt piston rod to rust.
•
Electric circuit is disconnected
•
Electromagnetic contactor KM is
defective
•
Lifting switch is obstructed resp.
•
Reduce the load
•
Clean or replace it
•
Check the wiring
•
Replace the contactor KM
•
Check resp. replace the lifting switch
•
Check the pump
Fu1=160A(Inside)
Fu2=5A
Fig.15: Overview
Fuses
