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3. Let go of the release pedal; the air in the oil system
should be bled successfully. If not successful, repeat
procedure but first check oil level, or see procedures
under maintenance section, steps 2 through 5.
OPERATING INSTRUCTIONS
1. Follow the vehicle's recommended service procedure
for removal of the component.
2. Position the jack under the vehicle.
3. Raise the jack by operating the foot pump until the
saddle touches the component.
4. Adjust the support brackets to fit the component.
5. Use the tilt crank to align the saddle with the
component.
6. Finish raising the jack to the component. Secure the
chain assembly around the component.
Trouble
Unit fails to extend or extends
partially
Incomplete or spongy cylinder
response when foot pedal is
pumped
Abnormal leakage through unit
breather
Unit fails to extend when foot
pedal is pumped
Cylinder creeps
Cylinder doesn't retract when
release pedal is activated
Cylinder doesn't extend
Cylinder extends when foot pedal
is pressed, and retracts as foot
pedal retracts
TROUBLESHOOTING GUIDE
Cause
1. Low fluid level
1. Low fluid level
2. Air in system
1. Low fluid level
1. Release valve malfunction
2. Contamination
3. Cylinder packing failure
1. Load exceeds maximum lifting
capacity
2. Release valve is leaking
1. Light load
2. Cylinder is binding
1. Contamination
2. Bad packing
1. Release valve malfunction
2. Contamination
4
MAINTENANCE
1. Regularly lubricate all moving parts of the jack. Pay
special attention to the lift screw and related linkages.
A medium weight lubricating grease should be used
on all external moving parts, such as the bearing
surface, pivot points, tilt screws, etc.
2. Regularly check the oil level. With the saddle fully
lowered, remove the oil seal screw, and check the
oil level. The oil level should be at the bottom of the
screw hole. Add oil if necessary.
3. Use only hydraulic jack oil. Do not use hydraulic
brake fluid.
4. If the jack fails to operate, check the oil level and/or
bleed unit before seeking service.
5. Do not use this jack as a wash rack when washing or
steam cleaning transmissions.
1. Refer to Maintenance section and fill to
correct fluid level.
1. Fill to correct fluid level.
2. Refer to Bleeding Air from the Hydraulic
System.
1. Refer to Maintenance section and fill to
correct fluid level.
1. Pump foot pedal with release valve open.
2. Disassemble and clean unit.
3. Install the necessary items from the seal
kit.
1. Reduce load or use jack with sufficient
lifting capacity.
2. Flush release valve by pumping foot pedal
with release valve open.
1. Unit requires 35 lbs. to return.
2. Disassemble unit; replace defective parts.
1. Disassemble and clean unit.
2. Install new seal kit.
1. Flush release valve by pumping foot pedal
with release valve open.
2. Disassemble and clean unit.
Solution
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