Quick Disconnects

GENERAL INFORMATION

NOTE:
^ 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 installing the plugs- as repairs are possible only by replacing the affected line in most cases.
^ After separating the plug and socket piece, carefully protect them against dirt and scratches with caps.

CONNECTING/DISCONNECTING

NOTE:
^ Step numbers below correspond to the numbers in the illustration above.
^ The plug-in coupling is opened by unscrewing.

Pipelines Previously Installed

NOTE:
^ Pipelines that were installed once before are joined by screwing together (as opposed to new lines and steering lines, which are plugged together).
^ This is necessary because holder C is located very deep in the threaded part of the plug-in coupling and cannot be removed with conventional workshop equipment.

1. Open plug-in coupling.
- Turn at threaded part A to open the plug-in coupling.
- When doing so, counter HOLD at plug-in coupling B.
2. Separate lines.
- Remove lines from the retainers on the body and separate.
3. Screw together plug-in coupling.
- Turn at threaded part A when joining the plug-in coupling.
- When doing so, counter HOLD at plug-in coupling B.
4. Use coupling testing tool No. 9623, or equivalent, to check whether the plug-in coupling was engaged properly.
- Insert coupling testing tool into the groove (arrow) and apply slight pressure on the special tool to check whether the connection is securely locked (holder is seated properly).
- The plug must not slide out.
- If the special tool cannot be inserted in the groove of the plug, shift the plug in the plug-in coupling (pull on plug with out using excess force).

NOTE: The plug-in connection is designed so that the plug can be shifted in the plug-in coupling by approx. 1 mm in axial direction by slightly pulling or pressing.


New Pipelines
- The plug-in coupling - including holder C - has already been screwed together.
- All that remains is to insert (engage) the plug of the mating pipeline in a straight line.