5 - 35
System
Faults
Possible causes
Solutions
Brake
Brake does not work or
only one side works.
▲
Wrong brake pedal play
▲
Lining worn or broken
▲
Left/right pedal play is different
▲
Adjust
▲
Replace
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Adjust
After brake pedal
working, it does not
return.
▲
Return spring damaged
▲
Lack of grease in shaft parts
▲
Replace the spring
▲
Remove the rust, apply grease
Hydraulic
lift
system
The linkage does not
move up.
▲
Lack of transmission oil
▲
Air in the suction pipe
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Hydraulic filter clogged
▲
Hydraulic pump failure
▲
Control valve failure
▲
Cylinder or cylinder related
parts broken
▲
Aid oil
▲
Tighten the filter or replace
seal of connecting part
▲
Clean the filter or replace
▲
Repair or replace
▲
Repair or replace
▲
Repair or replace
Oil leakage
▲
Connecting part loosened
▲
Oil seal damaged
▲
Pipe cracked
▲
Tighten
▲
Replace
▲
Replace
If lever is placed on the
raising position, relief
valve sounds off.
▲
Upper limit of position control
lever is changed
▲
Adjust the upper limit
The linkage does not
move down.
▲
Down speed control valve
locked
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Control valve failure
▲
Cylinder damaged
▲
Lift shaft moving part damaged
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Turn the knob counter-
clockwise
▲
Repair or replace
▲
Replace
▲
Repair or replace
