31 12 138 Replacing rubber mounts on both tension struts
Special tools required:
See 31 2 260 PRESSURE SLEEVE TOOL
- 31 2 261
- 31 2 264
IMPORTANT:
The rubber mounts on both tension struts must be replaced! Note that the rubber mounts may only be changed once.
Carry out check:
There must always be a minimum amount of play in the guide joint.
- Check guide joint playNOTE: For this purpose, apply light pressure to the tension strut (in the area of the guide joint) in the horizontal and vertical directions.
- Play is OK: Check bolt connection (see Point 2)
- Play is not OK: Replace rubber mount and guide joint, see 31 12 026 Removing and installing/replacing guide joint in swivel bearing .
- Check bolt connection (tension strut to guide joint) by tightening to 60 % of Tightening torque: 31 12 20AZ, see 31 12 CONTROL ARMS AND STRUTS
and listening for cracking sound
- Torque wrench cracking sound: Replace rubber mount
- Bolt connection turns: Replace tension strut and guide joint, see 31 12 CONTROL ARMS AND STRUTS .
Replacing rubber mount:
Remove both tension struts, see 31 12 050 Removing and installing/replacing left or right tension strut .
Using a press and special tools 31 2 261 and 31 2 264 , press rubber mount out of tension strut.
NOTE:
Special tool 31 2 264
must be exactly flush with rubber mount bushing.
Installation:
Keep rubber mount and bushing in tension strut clean and free from grease.
Align rubber mounts to each other using markings (K) and press in. The deviation must not exceed ± 3°.
Installation:
Protrusion (A) = 12.5 ± 0.7 mm