BMW 7 Series: Removing Overrunning Equipment/Maintaining Or Replacing Guide Bush/Installing Overrunning Equipment

After installing overrunning equipment, readjust brake system, refer to ADJUSTING BRAKE SYSTEM Check the guide bush while installed to ascertain whether it needs to be replaced. Raise ball end area and replace guide bush if play is detected in ball end area.

NOTE: After installing, readjust and check brake system.

Release round head screws (1) and remove running board (2) towards top.

Installation

Use new self-locking nuts.

Tightening Torque, 86 10 10AZ

Fig. 72: Identifying Running Board With Round Head Screws

Unhook tension spring (1) from tension spring mount (2).

Fig. 73: Identifying Tension Spring Mount With Tension Spring

CAUTION: Once nut (1) of pull rod (2) has been released, do not move handbrake lever. Handbrake lever can flick upwards.

Release screw (1) on pull rod (2) and remove hexagon nut. Slide brake compensator (3) towards rear.

Installation

Use new self-locking nut.

Fig. 74: Identifying Brake Compensator, Hexagon Nut And Pull Rod Screw

Release screws (1) on jockey wheel mount and remove.

Release wiring harness mount (2) and remove. Reinstall screw and tighten until hand-tight.

Installation

Tightening Torque for jockey wheel mount (1), 86 10 11AZ

Tightening Torque for wiring harness mount (2), 86 10 12AZ

Fig. 75: Locating Wiring Harness Mount

Release screw on socket holder (1) and remove. Cut through strap (2) and lay wiring harness to one side. Pull gaiter (3) in direction of arrow.

Installation

Use new self-locking nut.

Tightening Torque, 86 10 13AZ

Fig. 76: Pulling Gaiter

Remove protective caps (1).

Fig. 77: Identifying Protective Caps

Release nuts (1) and remove.

Installation

Use new self-locking nuts.

Tightening Torque, 86 10 14AZ

Fig. 78: Identifying Caps Nuts

Tilt top reversing housing (1) in direction of arrow towards rear. Slide out top reversing housing (1) and bottom reversing housing with handbrake lever unit (2) in direction of arrow towards rear.

Fig. 79: Sliding Out Top Reversing Housing And Bottom Reversing Housing With Handbrake Lever Unit

Remove holder (1) towards bottom.

Fig. 80: Removing Socket Holder

Pull drawbar member (1) in direction of arrow and pull out overrunning equipment (2) in direction of arrow towards front.

Fig. 81: Pulling Drawbar Member And Overrunning Equipment

Remove spacer tubes (1) and threaded pins (2) from guide bush (3).

Fig. 82: Identifying Spacer Tubes And Threaded Pins Of Guide Bush

Press pins (1) inwards. Detach counter support (2) and guide bush (3).

Maintenance

Grease tow tube (4) and attach guide bush (3).

Installation

Secure counter support (2) with new clamping sleeves to tow tube (4).

Fig. 83: Identifying Guide Bush, Tow Tube And Counter Support With Pins

Insert spacer tubes (1) and threaded pins (2) in guide bush (3).

Make sure spacer tubes (1) are correctly seated in guide bush (3).

Fig. 84: Identifying Spacer Tubes And Threaded Pins With Guide Bush

Using a screwdriver, link spacer tubes (1) and shock absorber located in tow tube. This ensures that the shock absorber remains in the correct installation position. Pull drawbar member (2) in direction of arrow and push in overrunning equipment (3) in direction of arrow towards rear.

Fig. 85: Pulling Drawbar Member

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