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TROUBLESHOOTING
Visit a Princess Auto Ltd. location for a solution if the tool does not function
properly or parts are missing. If unable to do so, have a qualified technician
service the tool.
Problem(s)
Jack will not lift
load.
Jack will lift, but
will not maintain
pressure.
Will not lower
after loading.
Poor lift
performance.
Will not lift to
the max. height.
14
4 Ton Low Profile Floor Jack
Possible Cause(s)
1. The release valve is not
closed tightly.
2. Overloaded the jack.
3. Air is trapped in the
hydraulic system.
1. Release valve is not closed
tightly.
2. Overloaded the jack.
3. Hydraulic unit is
malfunctioning.
1. Reservoir is overfilled.
2. Linkages are binding.
3. Air is trapped in the
hydraulic system.
1. Hydraulic oil level is low.
2. Air is trapped in the
hydraulic system.
1. Air is trapped in the system.
2. Hydraulic oil level is too low.
Suggested Solution(s)
1. Close the release valve firmly.
2. Reduce load or use a jack with a
greater lift capacity.
3. Bleed air from the system.
1. Close the release valve firmly.
2. Reduce load or use a jack with a
greater lift capacity.
3. a. Replace the seals.
b. Have service technician repair
the jack.
1. Drain oil to the proper level.
2. Clean and lubricate all moving
parts.
3. Bleed air from the system.
1. Add oil to the proper level.
2. Bleed air from the system.
1. Bleed air from the system.
2. Add oil to the proper level.
For technical questions call 1-800-665-8685
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