- Remove left and right fairing side sections and engine spoiler.
See Group 46.
- Attach hoist, BMW No. 00 1 510, to oil sump.
Caution: Do not operate the handbrake lever when the brake calipers have been removed.
Take care not to scratch wheel rim; cover with masking tape if necessary.
- Remove front and rear sections of the front mudguard.
See Group 46.
- Remove front wheel.
See Group 36.
![](https://motoinstruction.ru/img/bmw/21/127335.jpg)
Caution: Fastener under protective cap (1) is secured with thread-locking compound.
- Remove plug concealing fastener (arrow) of steering damper below slider tube bridge.
- Remove fastener (arrow) securing steering damper to slider tube bridge.
- Remove protective cap (1).
Caution: Make sure that brake line and front ABS sensor cable are not stretched when telescopic fork extends. Support the slider tubes.
![](https://motoinstruction.ru/img/bmw/21/127336.jpg)
Caution: Fastener is secured with thread-locking compound; heat to max. 120°C (248°F) if necessary.
- Remove fastener securing leading link to the fork slider tube bridge, using socket wrench insert and adapter for socket-head screw, BMW No. 315600.
![](https://motoinstruction.ru/img/bmw/21/127337.jpg)
Caution: Screws (2) are secured with thread-locking compound.
- Heat screws (2) securing slider fork slider tube bridge to sliding tubes and remove.
- Remove slider tube bridge
- Installation is the reverse of the removal procedure: pay particular attention to the following.
Note: Fixed tubes must be installed in fork bridge.
- Preinstall quick-release axle in sliding tubes.
- Install screws securing fork slider tube bridge, but do not fully tighten.
Caution: When installing, clean threads, use new nut or coat threads with Loctite 2701.
- Tighten fastener securing leading link to the fork slider tube bridge, using socket wrench insert and adapter for socket-head screw, BMW No. 315600.
Caution: When installing, clean threads, use new screws or coat threads with Loctite 243.
- Tighten screws securing fork slider tube bride to sliding tubes.
Caution: The quick-release axle must line up correctly with the locating bores and install easily, requiring no more than a slight turn back and forth.
- Check/adjust ABS sensor gap.
See Group 34.
- ABS sensor gap, front — 0.45...0.55 mm (0.018...0.022 in)
Tightening torques:
- Quick-release axle clamp screws — 21 Nm
- Leading link to fork bridge (clean thread + Loctite 2701 or use new nut) — 130 Nm
- Steering damper to fork bridge (clean thread, Loctite 243 or use new screw) — 21 Nm
- Fork slider tube bridge to sliding tubes (clean thread, Loctite 243 or use new screws) — 21 Nm
- Brake distributor to holder/sliding tube, right — 9 Nm
- Quick-release axle, front wheel
- Initial tightening —19 Nm
- Final tightening — 30 Nm
Removing and installing ball joint
![](https://motoinstruction.ru/img/bmw/21/127338.jpg)
- Secure sliding tube fork bridge (1) in retaining fixture, BMW No. 31 5 620.
Warning: Note that high torque has to be applied to loosen the ball joint fastener.
- Release the ball joint fastener with the 46 mm (1.8 in) socket wrench insert, BMW No. 31 5 630.
- Coat the ball joint fastener with Optimoly TA and secure it with 46 mm (1.8 in) socket wrench insert, BMW No. 31 5 630, to sliding tube fork bridge (1).
Tightening torques:
- Ball joint to sliding tube fork bridge — 230 Nm