86 10 ... Removing brake shoes

The wheels of the multi-trailers must be able to rotate freely.

Adjust and check brake system after installing brake shoes.

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

Fig 1: Unhooking Tension Spring

Courtesy of BMW OF NORTH AMERICA, INC.

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

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

Fig 2: Releasing Nut On Pull Rod And Removing Hexagon Nut

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

Use new self-locking nut.

Grip openings (1) in wheel trim (2) with both hands and pull off wheel trim (2).

Fig 3: Pulling Off Wheel Trim

Courtesy of BMW OF NORTH AMERICA, INC.

Release wheel bolts (1) and remove disk wheel (2).

Fig 4: Removing Disk Wheel

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

Tightening Torque, 100 Nm.

Turn brake shoe adjusting screw (2) on brake carrier (1) in direction of arrow and release fully. The brake shoes do not rest against the drum.

Fig 5: Turning Brake Shoe Adjusting Screw

Courtesy of BMW OF NORTH AMERICA, INC.

Lever off cap (1).

Fig 6: Identifying Cap

Courtesy of BMW OF NORTH AMERICA, INC.

Release nut (1) and remove. Pull off brake hub (2) with both hands.

Fig 7: Removing Brake Hub

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

Only a new nut is permitted for reinstallation.

Tightening Torque, 280 Nm.

Do not screw off brake hub under any circumstances.

To illustrate more clearly the work steps in following figures, the wheel brake has been detached from the axle.

This procedure is not necessary for removing the brake shoes.

Push back cable (1).

Fig 8: Identifying Cable

Courtesy of BMW OF NORTH AMERICA, INC.

Remove shell (1).

Fig 9: Identifying Shell

Courtesy of BMW OF NORTH AMERICA, INC.

Remove brake cable (1) from mounting (2).

Fig 10: Removing Brake Cable From Mounting

Courtesy of BMW OF NORTH AMERICA, INC.

Unhook pressure spring (1) from fixed brake shoe (2) and brake carrier (3).

Fig 11: Unhooking Pressure Spring

Courtesy of BMW OF NORTH AMERICA, INC.

Remove tension spring (1) from both brake shoe fixtures (2).

Fig 12: Removing Tension Spring

Courtesy of BMW OF NORTH AMERICA, INC.

Remove brake lever assembly (3).

Installation:

The fixed part of the brake lever assembly (3) is seated on the moving brake shoe. The moving part of the brake lever assembly is seated on the fixed brake shoe.

Pull brake shoes (1) apart in direction of arrow, tilt forward and remove from adjustment device (2).

Installation:

Always replace the four shoes and use the same make.

Minimum lining thickness: 1.5 mm

Fig 13: Removing Brake Shoes From Adjustment Device

Courtesy of BMW OF NORTH AMERICA, INC.

Check adjustment device (1).

Fig 14: Checking Adjustment Device

Courtesy of BMW OF NORTH AMERICA, INC.

Check wedge (2) and setting pins (3) for ease of movement and wear.

Apply grease if necessary.

Check brake cables for ease of movement and wear.