Inspection and installation work on the rack and pinion power steering

Printed in Germany - XV, 1992

Bleeding the steering system

1. In order to fill the whole system after installation of new steering assemblies, lines or heavy hydraulic fluid loss, start the engine briefly several times and immediately switch it off again after it has started. During this operation, the fluid level in the supply reservoir falls rapidly. Consequently, the level must constantly be topped up with ATF Dexron II D. The supply reservoir must not be sucked empty.

2. If the fluid level in the supply reservoir no longer drops when the engine is cranked briefly, start the engine and allow it to run at idling speed.

5. With the engine running at idling speed, produce the correct fluid level (between the min. and max. markings) without operating the steering system.

3. Turn the steering wheel rapidly from one lock to the other several times so that the air can escape from the cylinders. In the limit positions of the piston, do not pull on the steering wheel more than is necessary to turn the steering (unnecessary pressure build-up is initially avoided).

4. Observe the fluid level during this operation. If this still falls, top up until the fluid level remains constant in the fluid reservoir and until no air bubbles rise up in the supply reservoir when the steering wheel is turned:

Note

The oil level in the supply reservoir must not rise more than 10 mm when the engine is switched off.

If the fluid levels deviate from each other by more than 10 mm when the engine is stationary and running, there is still too much air enclosed in the hydraulic fluid.

48-2 Inspection and installation work on the rack and pinion power steering

Printed in Germany - V, 1989

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