Omega Lift Equipment 44915 Mode D'emploi page 4

OPERATION
Extending the Ram Plunger
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WARNING: Never use this jack as a stand alone lifting device.
WARNING: After lifting, immediately support the lifted load with appropriately rated mechanical means.
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1. Locate and close release valve by turning it clockwise until firm resistance is felt to further thread engagement.
2. To raise:
a) Models 44915, 44930, 44940 & 44980: Insert handle into handle sleeve and pump.
b) Model 44981C: Squeeze the lift control valve or insert handle into handle sleeve and pump.
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WARNING: On air option model, never wire, clamp or otherwise disable the lift control valve to function by
other than operator's hand.
NOTICE: Do not operate jack by air and hand pump at the same time.
3. Continue pumping until load reaches desired height.
4. Immediately secure lifted load with appropriately rated mechanical means such as jack stands or engine stand.
NOTICE: Do not use extenders on the air hose or the operating handle.
Retracting the Ram Plunger
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WARNING: Clear all tools and personnel before lowering load. Open release valve slowly. The further handle is
turned counter-clockwise, the faster the load will descend. Maintain control of the load at all times.
1. Raise load high enough to clear the mechanical supports, then carefully remove the supports.
2. Slowly turn the release valve lever counter-clockwise, but no more than 2 turns. If the load fails to lower:
a. Use another lifting device or jack to raise the load high enough to reinstall mechanical supports.
b. Remove the affected jack and then the supports.
c. Lower the load by turning the release valve lever counter-clockwise.
3. After removing jack from under the load, push ram and handle sleeve down to reduce exposure to rust and
contamination.
MAINTENANCE
NOTICE: Use only good quality hydraulic jack oil. Avoid mixing different types of fluid and NEVER use brake fluid,
turbine oil, transmission fluid, motor oil or glycerin. Improper fluid can cause premature failure of the jack and the
potential for sudden and immediate loss of load. Premium hydraulic jack oil is recommended.
Adding oil
1. With ram plunger fully lowered and pump piston fully depressed, set jack in its upright, level position. Remove
oil filler plug.
2. Fill with oil until just below the rim of the oil filler hole. Reinstall the oil filler plug.
Changing oil
NOTICE: For best performance and longest life, replace the complete fluid supply at least once per year.
1. With ram plunger fully lowered and pump piston fully depressed, remove the oil filler plug.
2. Lay the jack on its side and drain the fluid into a suitable container.
NOTICE: Dispose of hydraulic oil in accordance with local environmental regulations.
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