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

MODEL 451.3/4 

Fig 1: Identifying Rear Axle Brake Shoe Components

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

	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 pliers on brake anchor plate (2) and unhook spring (3)	Replace spring (3), a damaged or overstretched spring (3) can lead to impairment of the braking effect. Installation:  Measure brake shoes (1) diagonally with universal vernier caliper and adjust to the dimension (A) of 202.6 mm, measured at the top side of the linings.
		Universal vernier gauge set http://gotis.aftersales.mercedes-benz.com	*450589003700
3	Remove retaining washers (4) using the removal and installation tool and remove together with the springs (5) located underneath. Subsequently remove the retaining pins (6) from brake anchor plate (2)	Replace retaining washers (4), springs (5) and retaining pins (6), damaged or overstretched springs (5) can lead to impairment of the braking effect.
			*450589186300
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	Ensure that the dust boots of the brake pistons of the wheel brake cylinder (11) are not damaged otherwise leakages can lead to failure of the brake system. Installation:  The brake lining of the brake shoes (1) must be absolutely grease-free otherwise the braking effect will be impaired.
7	Clean brake carrier plate (2)	Installation:  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	AR42.10-P-0167MCU
9	Install in the reverse order

Fig 2: Identifying Pliers (450 589 00 37 00)

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Fig 3: Identifying Removal And Installation Tool (450 589 18 63 00)

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

AUXILIARY REPAIR MATERIALS

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