Troubleshooting Guide - SPX 1525 Operating Instructions Manual

Parts List & Operating Instructions
Repair procedures must be performed in a dirt-free environment by qualified personnel who are familiar with this
equipment. CAUTION: All inspection, maintenance, and repair procedures must be performed when the jack is free
of a load (not in use).
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

Troubleshooting Guide

Cause
1. Release valve is open.
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. Packing 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. Release valve is closed.
1. Cylinder damaged internally.
2. Return spring is damaged.
3. Link section is binding.
Form No. 107156, sheet 2 of 2, back
1. Close release valve by turning handle CW.
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 packing.
1. Check oil level.
1. Rework pump.
2. Replace seals. (Seal kit No. 512218 is
available from OTC.)
1. Replace packing.
2. Inspect valves. Clean and repair seat
surfaces.
3. Bleed system.
1. Replace seals.
1. Open release valve by turning handle all
the way counterclockwise (CCW). May
be necessary to clean release valve.
1. Send jack to OTC-authorized service
center. (Refer to OTC Form No. 104031.)
2. Replace return spring.
3. Lubricate or replace link section.
Solution