Operating Manual
Original Operating Manual
19
7.
Troubleshooting
Troubleshooting should only be performed by qualified and authorised personnel.
Fault
Possible cause
Correction
Fork Positioner
Opening and closing
Movement too slow
Insufficient fluid flow from
truck's hydraulics
Increase flow rate of truck's
hydraulics
Clearance
Carriage has too much
clearance
Slider is worn
Replace sliders
Carriage tilts at outer
limit
Slider is worn
Replace sliders
Carriage rubbing against
guide section
Slider is worn
Replace sliders
Oil leakage
At cylinder
Screw fitting is leaking
Tighten / seal screw fitting
Sealing kit defective
Replace sealing kit
Piston rod scored
Replace piston rod and
sealing kit
Sideshifter
When shifting
Too slow
Pressure supplied by the FFZ
too low
Increase pressure at the FFZ
Bore of the throttle valve is too
small
Re-bore the throttle valve or
replace it with a larger one
Jerky shifting action
Supporting roller defective
Replace supporting roller
Sliders not properly lubricated
Lubricate sliders
Supporting roller does
not rotate
Supporting roller defective
Replace supporting roller
Housing scrapes on the
conduit
Slider is worn
Replace sliders
No cusion for backward
position
Cusion for backward position
defective
Replace piston rod
