Remove/install brake shoes at rear axle - AR42.10-P-0165MCU

MODEL 451.3/4 

Fig 1: Identifying Brake Shoes At Rear Axle Remove/Install Components

Courtesy of MERCEDES-BENZ USA

	Remove/install
	Risk of poisoning  caused by swallowing brake fluid. Risk of injury  caused by brake fluid coming into contact with skin and eyes.	Only pour brake fluid into suitable and appropriately marked containers. Wear protective clothing and eye protection when handling brake fluid.	AS42.50-Z-0001-01A
	Brake fluid notes		AH42.50-P-0001-01A
	Notes on repairs to brake system		AH42.00-P-0003-01A
1	Remove left or right brake drum		AR42.10-P-1010MCU
2	Support brake spring pliers at brake anchor plate (2) and unhook spring (3) using commercially available brake spring pliers	Install a new spring (3). : Measure the brake shoes (1) using the vernier caliper and adjust to the dimension (A) of 202.6 mm, measured at the upper side of the linings. Use a commercially available vernier caliper with a scale of at least 210 mm.
3	Detach circlips (4) and remove together with springs (5). Subsequently remove the retaining pins (6) from brake anchor plate (2)	Install new circlips (4), springs (5) and retaining pins (6). Removal and installation tool	Fig 2
4	Press back spring (7) on hand brake cable (8) and unhook hand brake cable (8) at hand brake lever (9)	Twist wheel hub (10) until a threaded hole is located in the lower position.
5	Tilt brake shoes (1) upward by 90° over wheel hub (10)
6	Compress brake piston of wheel brake cylinder (11) and guide out brake shoes (1) upwards	Handle the brake shoes (1) with care. The dust boots on the brake pistons of the wheel brake cylinder (11) can otherwise be damaged. The brake lining of the brake shoes (1) must be absolutely free of grease. The braking effect will otherwise be impaired.
7	Clean brake carrier plate (2)	: Smear the contact surfaces (arrows) of the brake carrier plate (2) at the brake shoes (1) with a thin coating of brake paste. Brake paste	*BR00.45-Z-1060-06A
8	Check ease of movement and leakproofness of wheel brake cylinder (11)	In the event of the slightest signs of brake fluid escape or sluggishness of the brake pistons of the wheel brake cylinder (11) this must be replaced, see: ↓ Remove/install wheel brake cylinder (11)	AR42.10-P-0167MCU
9	Install in the reverse order

Fig 2: Identifying Removal And Installation Tool (450 589 18 63 00)

Courtesy of MERCEDES-BENZ USA

REPAIR MATERIALS

Number	Designation	Order number
BR00.45-Z-1060-06A	Brake paste	Q0007414V000000000