Haklift Oy
Asessorinkatu 3-7
20780 Kaarina, Finland
Tel. +358 2 511 5511
www.haklift.com
Lifting Solutions Group
Axel Johnson International
Truck hoisting
7. Common faults and troubleshooting
Some common faults and troubleshooting are listed in the table below:
No. Fault
Analysis of cause
Troubleshooting
1
Hydraulic oil
leakage.
1. Failed oil seal.
2. Slight damage or wear
on the surface of one or
two components.
3. Loose connection.
1. Replace the oil seal.
2. Replace the damaged
components.
3. Re-tighten the
connection.
2
Forks not lifting.
1. Too great viscosity of
hydraulic oil or hydraulic
oil has not been added.
2. Foreign matter in the oil.
3. The hydraulic power
unit is damaged.
1. Replace hydraulic oil.
2. Remove the foreign
matter in oil or replace
hydraulic oil.
3. Replace the hydraulic
power unit.
3
Fork not lowering.
Manual lowering valve is
not properly adjusted.
Adjust the position of
lowering valve screw.
Fasten accordingly for hoisting.
