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Check and refill oil
Use hydraulic jack oil only. Do not use brake or transmission
fluids or regular motor oil or any other fluids as they may
damage the seals.
(a) Turn the release valve counterclockwise to allow ram
to fully retract. It may be necessary to apply force to
the saddle for complete lowering.
(b) With the jack in the level position, remove the oil fill
plug. Stand jack in a vertical position with the handle
socket down. The oil should be level with the bottom
of fill hole. If not, top off. Do not overfill. Always fill
with new, clean hydraulic jack oil.
(c) Replace oil fill plug and check jack operation.
(d) Purge air from system as required.
Air Purge Procedure
During shipment or after refilling oil, air may get into the
hydraulic system causing poor lift performance. Purge system
for better performance.
(a) Turn the release valve fully counterclockwise to fully
open the release valve.
(b) Pump handle rapidly several times
(c) Turn the release valve clockwise to close the release
valve.
(d) Pump the handle until the lift arm reaches maximum
height and continue to pump several times to remove
trapped air in the ram.
(e) Turn the release valve counterclockwise in one full
turn and lower lift arm to the lowest position. Use
force on saddle if necessary.
(f) Carefully and slowly pinch oil fill plug to release
trapped air.
(g) Turn the release valve clockwise to closed position
and check for proper pump action. It may be
necessary to perform the above steps more than
once to assure air is completely evacuated.
