5
TROUBLE SHOOTING
To bleed the hydraulic system:
• Close the release valve by turning the jack handle clockwise.
• Insert handle in sleeve and pump jack up to full height.
To release air from the hydraulic system:
• Open the release valve by turning the jack handle counterclockwise.
• Remove the oil filler plug from the cylinder.
• Rapidly pump jack handle through several full strokes.
• Replace the oil filler plug into the cylinder again and jack is ready to use.
REPARATIONS
Any hydraulic jack found to be damaged in any way, is found to be worn or operates abnormally, believed to have
subjected to an abnormal load, shall be
REMOVED FROM SERVICE UNTIL FULL REPAIRED.
Owners and/or 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. Contact customer service department.
Problem
Possible cause
Action
Jack will not lift to full height
Check oil level
Jack will not hold load
constantly
Release valve is not closing
Hydraulic jack oil contaminated
Pump valves not sealing
Cylinder ram binding
Call customer service
Lift arm will not lower
Cylinder ram binding
Parts worn
Internal damage
Broken return spring or
unhooked
Lift arm linkage bent or binding
Call customer service
Jack feels spongy when lifting
Air in hydraulic system
System air purge procedure
(see above)
Low oil level
