Troubleshooting Guide - SPX 5093 Instrucciones De Funcionamiento

Parts List & Operating Instructions
Repair procedures must be performed in a dirt-free environment by qualified personnel who are familiar with
this equipment.
CAUTION: To prevent personal injury, all inspection, maintenance, and repair procedures must be
performed when the jack is free of a load (not in use) and disconnected from the air supply.
Trouble
Jack does not lift
Jack lifts only partially
Jack advances slowly
Jack lifts load, but doesn't hold
Jack leaks oil
Jack will not retract
Jack retracts slowly
© SPX Corporation

Troubleshooting Guide

Cause
1. Control valve in wrong position.
2. Low/no oil in reservoir.
3. Air-locked system.
4. Load is above capacity of jack.
5. Delivery valve and/or bypass
valve not working correctly.
6. Seals worn out or defective.
1. Too much or not enough oil.
1. Pump not working correctly.
2. Leaking seals.
1. Cylinder packing is leaking.
2. Valve not working correctly
(suction, delivery, release, or
bypass).
3. Air-locked system.
1. Worn or damaged seals.
1. Control valve in wrong position.
1. Cylinder damaged internally.
Form No. 107273
Solution
1. Move control valve to UP position.
2. Fill with oil and bleed system.
3. Bleed system.
4. Use correct equipment.
5. Clean to remove dirt or foreign
matter. Replace oil.
6. Replace with seal kit No. 515349 for
the 5093 or seal kit No. 515353 for
the 5094.
1. Check oil level.
1. Replace with seal kit No. 515349 for
the 5093 or seal kit No. 515353 for
the 5094.
2. Replace with seal kit No. 515349 for
the 5093 or seal kit No. 515353 for
the 5094.
1. Replace with seal kit No. 515349 for
the 5093 or seal kit No. 515353 for
the 5094.
2. Inspect valves. Clean and repair
seat surfaces.
3. Bleed system.
1. Replace with seal kit No. 515349 for
the 5093 or seal kit No. 515353 for
the 5094.
1. Move control valve to DOWN
position.
1. Send jack to OTC-authorized service
center. (Refer to OTC Form No.
104031.)
Sheet No.
Issue Date: Rev. D, July 25, 2005
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