
OPERATION
1. Secure jackto suitable engine crane. Locate and
close release valve by turning lever clockwise firmly.
2. Operate by pumping handle until engine crane hook
reaches desired position.
3. Lower hook by gently turning the release valve lever
counterclockwise, never more than 1/2 turn. The
release valve system is metered, so please be care-
ful when lowering load.
BE SURE ALL TOOLS AND PERSONNEL ARE CLEAR
BEFORE LOWERING LOAD. DANGEROUS DYNAMIC
SHOCK LOADS ARE CREATED BY QUICKLY OPENING
AND CLOSING THE RELEASE VALVE AS THE LOAD IS
BEING LOWERED. THE RESULTING OVERLOAD MAY
CAUSE HYDRAULIC SYSTEM FAILURE WHICH COULD
CAUSE SEVERE PERSONAL INJURYAND/OR PROPERTY
DAMAGE.
MAINTENANCE
Important: Use onlya good grade 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.
Adding Oil:
1. With ram fullylowered and pump piston fully de-
pressed, set jack in its upright, level position. Care-
fully remove from crane. Remove oil filler plug.
2. Fill until oil is level with the filler plug hole, re-install oil
filler plug.
Changing Oil:
For best performance and longest life, replace the com-
plete fluid supply at least once per year.
1. With ram fullylowered and pump piston fullyde-
pressed, remove the oil filler plug.
2. Lay the jack on its side and drain the fluid into a
suitable container.
Note: Dispose of hydraulic fluid in accordance
with local regulations.
3. Set jack in its level upright position.
4. Fill with good quality jack oil. We recommend Mobil
DTE 13 or equivalent. Reinstall oil filler plug.
Lubrication
1. A coating of light lubricating oil to pivot points, axles
and hinges will help to prevent rust and assure that
wheels, casters and pump assemblies move freely.
2. Periodically check the pump piston and ram for signs
of rust or corrosion. Clean as needed and wipe with
an oily cloth.
NEVER USE SANDPAPER ORABRASIVE MATERIAL
ON THESE SURFACES!
3. When not in use, store the jack with pump piston and
ram fully retracted.
3
Possible Causes
Jack will not lift load
Jack bleeds off after lift
Will not lift to full extension
Release valve not tightly closed
Overload condition
Fluid level low
Fluid level low
Air trapped in system
Release valve not tightly closed
Overload condition
Hydraulic unit malfunction
Ensure release valve tightly closed
Remedy overload condition
Ensure release valve tightly closed
Remedy overload condition
Contact your supplier
Ensure proper fluid level
Ensure proper fluid level
With ram fully retracted, remove oil filler
plug to let pressurized air escape,
reinstall oil filler plug
TROUBLESHOOTING
Poor lift performance
Jack will not lower after unloadingReservoir overfilled
Linkages binding
Drain fluid to proper level
Clean and lubricate moving parts
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