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Symptom: Jack(s) Retract Partially

RVA Diagnostic

The most common reason a jack will retract partially and stop is the jack piston is bent. The bend can be hard tosee, yet keep the jack from completely retracting. Jacks can be bent numerous ways that can include:

- Driving off with jack(s) extended.

- Not visually verifying each jack is completely retracted before releasing parking brake.

- Parking on too much of an incline. Side loads can be induced on the jacks.

- Use caution when blocks are used under jack pads. If the blocks are under jack pads ensure they will not break or are not already broken. If a block breaks it can put side loads on the jack or impact loads that can bend the jack piston, jack mount, or jack pad.