Troubleshooting
System air purge
1. Turn release valve counterclockwise one full turn to open.
2. Pump handle eight full strokes.
3. Turn release valve clockwise to close valve.
Problem
Jack will not lift to full
height
Jack will not hold load
Lift arm will not lower
Jack feels spongy when
lifting
Possible cause
Low oil level
Release valve not closing
Hydraulic jack oil
contaminated
Pump valves not sealing
Cylinder ram binding
Cylinder ram binding
Parts worn
Internal damage
Broken return spring or
unhooked
Lift arm linkage bent or
binding
See system air purge
section
Solution
Check oil level
Call customer service
Call customer service
See system air purge
section
Factory Service
Any hydraulic jack found to be damaged in any way is found to be worn or
operates abnormally, believed to have been subjected to an abnormal load
shall be removed from service until repaired. Owners and operators should
be aware that repair of the equipment requires specialized knowledge and
facilities. Only factory authorized parts, labels and decals shall be used on
this equipment.
Annual inspection of the jack is recommended and should be made by the
manufacturer's or supplier's authorized repair facility to ensure that the jack
is in optimum condition.
