Power Steering Line/Hose: Service and Repair

Plug-in couplings for steering hydraulic system

Important notes
The principle of the plug-in couplings for the pressure and return lines is the same. It is the diameters of the plug-in coupling and of the pipelines that differ (return line = large diameter / pressure line = small diameter).

Plug-in couplings are components that permit simple, fast and precise connection of pipelines. These precision components must be handled carefully during repairs. Excess force during assembly work, damage to the sealing surface and soiling can cause leakage.

Perform preparations carefully when handling plug-in couplings - e.g. cleaning and fitting the plugs - as repairs are possible only by replacing the affected line in most cases. Only the threaded part A (with fitted O-rings) and the holder C are available as individual parts for the plug-in coupling.











Tools

Note!
^ Pressure and return lines have different dimensions. Pressure line = nominal diameter 6, return line = nominal diameter 10.

The plug-in coupling is opened by unscrewing. It is joined by plugging together.

Join the plug-in connection only in a straight line. Never use excess force.

After separating the plug and socket piece, carefully protect them against dirt and scratches with caps.
Correct engagement must be checked with a gentle pull. Use special tool 9623 for this purpose








Note!
^ The plug-in connection is designed so that the plug can be shifted in the plug-in coupling by approximately 1 mm in axial direction by slightly pulling or pressing.

Close corresponding retainers on the body.

Carefully fold the clip up and engage.