Removing and installing pot-type joints
![](https://motoinstruction.ru/img/bmw/21/127323.jpg)
- Remove wiper (1).
- Remove snap ring (2).
- Press out pot-type joint (3) with wiper (4) using mandrel, BMW No. 31 5 661, and bushing, BMW No. 315662.
![](https://motoinstruction.ru/img/bmw/21/127324.jpg)
Note: Always replace lower wiper (4); replace upper wiper (1) if necessary.
- Install wiper (4).
- Press in pot-type joint (3) with mandrel, BMW No. 315661.
- Install snap ring (2).
- Install wiper (1).
Removing angular-contact ball bearing with stud
![](https://motoinstruction.ru/img/bmw/21/127325.jpg)
- Remove protective cap (6).
Note: Always install a new angular-contact ball bearing.
- Remove retaining ring (5).
- Heat fork bridge to 100°C (212°F).
Warning: To avoid burns, always wear protective leather gloves when handling heated components.
- Use mandrel, BMW No. 31 5 651, to remove angular-contact ball bearing; tap mandrel lightly with plastic-headed hammer if necessary.
Removing stud
![](https://motoinstruction.ru/img/bmw/21/127326.jpg)
Note: Do not damage thread (arrow).
- Press out stud with mandrel, BMW No. 31 5 651.
Installing stud
Note: Always install a new bearing.
![](https://motoinstruction.ru/img/bmw/21/127327.jpg)
- Using mandrel, BMW No. 31 5 651, as a rest, press stud (1) into angular-contact ball bearing (2).
Installing angular-contact ball bearing with stud
Note: Use temperature measuring device, BMW No. 00 1 900, to check heat rise.
- Heat fork bridge to 100°C (212°F).
- Install angular-contact ball bearing in fork bridge.
- Install retaining ring.
- Install dust cap.