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3. Follow the Loading and Raising instructions described earlier in this
manual.
Maintenance
Use only good grade hydraulic jack oil. Avoid mixing different types of fluid
and NEVER use brake fluid, transmission fluid or motor oil. Improper fluid can
cause premature failure of the jack and the potential for sudden and
immediate loss of load. When used daily with an air compressor, pour a
teaspoon of proper lubricant into the air inlet of the lift control valve. Connect
valve to air supply and squeeze valve lever to operate. This will evenly
distribute lubricant and properly prepare the hydraulic power unit for use.
Periodically check for leaks at air connections. Use thread compound to
repair. Avoid the use of thread tape when possible.
Cylinder Repair
In case cylinder malfunctions, it may be due to air bubbles in the hydraulic
cylinder. In such a case follow this procedure:
With ram fully retracted, locate and remove the oil filler plug. Insert handle
into the handle sleeve, then pump until lift reaches the first safety lock. This
will help release any pressurized air which may be trapped within the
reservoir. Ensure the oil level is just below the oil filler plug hole. Reinstall
the oil filler plug and lower the lift.
Adding Oil
With ram fully lowered and pump piston fully depressed, set jack in its upright,
level position. Carefully remove from lift. Remove oil filler plug. Fill until oil is
level with the filler plug hole. Reinstall oil filler plug.
Changing Oil
For best performance and longest life, replace the complete fluid supply at
least once per year. Remove the cylinder from the lift and follow this
procedure:
1. With ram 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.
3. Set jack in its level upright position.
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