Operating Instructions
Important: Sometimes during shipment and handling, air gets into the hydraulic system, causing
poor lifting performance. Before initial operation, purge any air from the system by fully opening
release (turn handle counter-clockwise). Then, while holding the saddle down, pump handle
rapidly several times.
Raising the Jack
1. Turn handle clockwise until resistance is felt to close release valve. Do not over tighten.
2. Place jack directly under object to be lifted. Make sure saddle takes up weight firmly and
centrally. Check positioning under slight load to confirm jack or load will not slip.
3. Raise jack by pumping handle until desired height is reached. After lifting, secure load by
appropriate means. Do not use jack as the only means of support.
Lowering the Jack
1. Slowly turn handle counter-clockwise. Speed of descent is controlled by amount release
valve is turned.
Always store jack in the fully lowered position.
Troubleshooting
If jack fails to raise to its height limit, fill with just enough good quality hydraulic jack fluid so that
jack raises to its height limit.
Summary of Contents for JSJ-2-1/4C
Page 6: ...Main Body Assembly ...
Page 8: ...Power Unit Assembly ...
