BMW 7 Series: Removing Camlock Retaining Cam On Loading Ramp

Drill out rivets (1).

Fig. 40: Identifying Loading Ramp Rivets

REMOVING CAMLOCK SCREW CAP

Bend back edges (1) of tab washer (2). Remove tab washer (2) over cross pin (3) towards bottom.

Installation

Replace lockplate.

Fig. 41: Identifying Back Edges Of Tab Washer With Cross Pin

REMOVING AND INSTALLING OR REPLACING LEFT OR RIGHT COIL SPRING

Release screw (1) and remove, tilt shock absorber (2) in direction of arrow towards rear.

Installation

Use new self-locking nut.

Hold shock absorber vertically and protective cap points upwards.

Completely press in shock absorber once and pull out up to required installation length. Do not tilt shock absorber further than is needed for installation.

Tightening Torque, 86 10 21AZ

Fig. 42: Removing Shock Absorber With Screw

The trailing arm folds down once the coil spring on the arm has been released.

No persons should be located underneath trailing arm. Risk of injury! Release screw (1) between trailing arm (2) and coil spring.

Installation

Tightening Torque, 86 10 22AZ

Fig. 43: Identifying Trailing Arm Screw

Remove pressure plate (1) from coil spring (2).

Installation

Use pressure plate with nut.

Fit pressure plate (1) according to its shape (3) into pressure spring (2).

Fig. 44: Identifying Pressure Plate On Pressure Spring

Release screw (1) between coil spring (2) and longitudinal member (3). Remove small pressure plate (4) and large pressure plate (5).

Installation

Use pressure plate without nut.

Fit small pressure plate (4) according to its shape (6) into pressure spring (2).

Tightening Torque, 86 10 23AZ

Fig. 45: Identifying Pressure Plate On Pressure Spring

Installation

Two persons are needed to install the coil spring correctly. One person presses down the pressure plate (2) seated inside the coil spring (1) and tightens the coil spring (1)/trailing arm (3) screw connection. At the same time, the second person levers the coil spring (1) with a screwdriver into its correct seat.

Tightening Torque for coil spring (1)/trailing arm (3), 86 10 22AZ

Fig. 46: Identifying Coil Spring With Pressure Plate And Trailing Arm

REMOVING BOLT ON LOADING RAMP

Insert a drift into hole (1) of bolt (2) and turn clockwise.

Fig. 47: Identifying Loading Ramp Hole And Bolt

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

Installation

Use new self-locking nut.

Fig. 49: Identifying Brake Compensator And Pull Rod Nut

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

Fig. 50: Identifying Wheeltrim Opening

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

Installation

Tightening Torque, 86 10 19AZ

Fig. 51: Identifying Disk Wheel And Wheel Bolts

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. 52: Turning Brake Shoe Adjusting Screw On Brake Carrier

Lever off cap (1).

Fig. 53: Identifying Brake Hub Cap

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

Installation

Only a new nut is permitted for reinstallation.

Tightening Torque, 86 10 20AZ

Do not screw off brake hub under any circumstances.

Fig. 54: Identifying Brake Hub With Nut

To illustrate more clearly the work steps in Fig. 55, Fig. 56 and Fig. 57, the wheel brake has been detached from the axle.

This procedure is not necessary for removing the brake shoes.

Push back cable (1).

Fig. 55: Identifying Cable

Remove shell (1).

Fig. 56: Identifying Cable Shell

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

Fig. 57: Identifying Brake Cable Of Mounting

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

Fig. 58: Identifying Pressure Spring Of Fixed Brake Shoe And Brake Carrier

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

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.

Fig. 59: Identifying Tension Spring Of Brake Shoe Fixtures

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. 60: Pulling Brake Shoes Apart

Check adjustment device (1).

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.

Fig. 61: Identifying Adjustment Device And Wedge With Setting Pins

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