Haklift Oy
Asessorinkatu 3-7
20780 Kaarina, Finland
Tel. +358 2 511 5511
www.haklift.com
Lifting Solutions Group
Axel Johnson International
TROUBLESHOOTING
Problem
Possible causes
Corrective action
Jack doesn’t lift a load
The release valve is not properly
closed; overloading; inadequate
air source
Check that the valve is closed;
check for overload; ensure
adequate air supply
Jack leaks after lifting a load
Release valve is poorly closed;
overloading; problem with the
hydraulic mechanism
Check that the valve is closed;
check for overload; contact
reseller
Jack doesn’t lower after
unloading
Oil reservoir too full; mechanical
problem
Empty the tank to a suitable level;
clean and oil moving parts
Jack has poor lift performance
Low level of liquid; air in the
system
Ensure the appropriate level of
fluid; with the hydraulic piston
pulled in, remove the oil fill cap to
vent the machine; replace the cap
Jack
doesn’t lift to full extension
Low level of liquid
Ensure the appropriate level of
fluid