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0321 IH-2185
OPERATING ISSUE
CAUSES
RECOMMENDATIONS
The forks do not lift to maximum
height.
Not enough hydraulic oil.
Add more oil.
The forks do not raise.
Not enough hydraulic oil.
The oil has impurities.
Discharge valve is out of adjustment.
Air in the hydraulic oil.
Add more oil.
Change the oil.
Adjust the setting screw as noted
in Operation.
Expel the air as noted in
Maintenance.
The forks do not descend.
The rod and the cylinder are deformed
resulting from a seriously unbalanced
load.
A part has been broken or deformed
resulting from an unbalanced load.
The setting screw is not in the correct
position.
Replace the rod and/or cylinder.
Repair or replace component.
Adjust the setting screw as noted
in Operation.
Leaks
Seals worn out or damaged.
Some parts may be cracked or worn out.
Replace seals with new ones.
Check and replace with new
ones.
The forks descend without
being lowered.
Impurities in the oil cause the discharge
valve to fail to close.
Air in the oil.
Seals worn or damaged.
Discharge valve is out of adjustment.
Change the oil.
Expel the air as noted in
Maintenance.
Replace with new ones.
Adjust the setting screw as noted
in Operation.
TROUBLESHOOTING
NOTE: Do not attempt to repair the pallet truck unless you are trained and authorized to do so.
1-800-295-5510
uline.com
