CHECKING OIL LEVEL
1. Release valve must be turned counterclockwise to allow the ram to fully retract. You may need to press down
on the saddle to lower.
2. Remove the oil plug while in a level position. Stand jack vertically with handle socket down. Oil should be
level with the bottom of the fill hole. Top off, but do NOT overfill, if needed. Always use new, clean hydraulic
jack oil.
3. Replace the fill plug.
4. Check to see if jack works.
5. Begin purging air from system as required.
PURGING SYSTEM AIR OR CHANGING OIL WHEN TROUBLESHOOTING
1. Turn release valve counterclockwise one complete turn to open.
2. Pump the handle eight full strokes.
3. Turn release valve clockwise to close the valve.
4. Pump handle until ram is at maximum height and continue to pump to remove any air trapped in the ram.
5. Slowly and carefully pinch oil fill plug to release trapped air.
6. Turn release valve clockwise to closed position and check for proper pump action. It may be required to
perform the above more than once to assume air is removed completely.
Troubleshooting
Problem
Probable Cause
Solution
Jack will not lift to full height
Low oil level
Check oil level
Jack will not hold load
□
Release valve 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
See Air Purge section
See Air Purge section
Maintenance (Cont.)
