Procedures

WM 4X00IN Plug-in couplings for hydraulic lines

Tools





Information

Information about hydraulic lines

New plug-in couplings are used for hydraulic lines in the Panamera. The plug-in couplings are no longer loosened by screwing them apart. The lines are pulled apart after releasing the plug connection.
Use the loosening tool 9780 to release the connection.





Special tool 9780

Do not use other (commercially available) loosening tools! They may damage the plug connection, making it necessary to replace the line.





Plug-in coupling





Opening and fitting plug-in couplings.

Information

Do not use other (commercially available) loosening tools.

- They may damage the plug connection, making it necessary to replace the line.

1. Open the plug-in coupling using loosening tool (special tool 9780).





Special tool 9780

1.1. To do this, fit the special tool loosening tool 9780 on the loosening sleeve plate -3- and insert it as far as it will go over the 60° chamfer -(in Pfeilrichtung)-.





Releasing plug-in coupling

If the tool is turned 180° before fitting, it cannot be inserted.
The 60° chamfer on the loosening tool must be facing the 60° chamfer from the connector (line -1- )!
1.2. Once you have released the plug-in coupling (by inserting the loosening tool), pull the lines apart -Pfeile-.
Collect hydraulic fluid in a container. Close off lines with suitable stoppers (e.g. from new lines) to prevent damage in the sealing area. Alternatively, cover the plug-in couplings using a clean, lint-free cloth.





Disconnecting lines after releasing plug-in coupling

1.3. Pull special tool loosening tool 9780 off the line -1- (off the connector).





Special tool 9780

2. Fit the plug-in couplings.
2.1. Carry out a close visual inspection of all parts. Replace the O-ring -7- and axial spring -5- if necessary. Then fit -(Pfeil)- the plug-in couplings -1 und 2-.





Connecting lines/available spare parts

2.2. Check that the plug-in coupling is locked correctly.





Locked plug-in coupling

Pull on the connector -1- to check that the plug-in coupling is locked (push and pull slightly in axial direction).
Counter at the plug-in sleeve -2- while doing this.
If the plug-in coupling is locked correctly, you should be able to feel slight axial play between the connector -1- and plug-in sleeve -2-. A plug-in coupling cannot be partly locked.
Another sure sign of a correctly locked plug-in coupling is the bulbous shape of the axial spring -5-.