Remove/install wheel brake cylinder - AR42.10-P-0167GG

MODEL 460, 461, 463 with drum brakes on the rear axle 

MODIFICATION NOTES

08.11.2012

Adjustment value for automatic adjuster

BE42.10-P-1002-13A

Fig 1: Wheel Brake Cylinder Remove/Install Components (1 Of 5)

Courtesy of MERCEDES-BENZ USA

Fig 2: Wheel Brake Cylinder Remove/Install Components (2 Of 5)

Courtesy of MERCEDES-BENZ USA

Fig 3: Wheel Brake Cylinder Remove/Install Components (3 Of 5)

Courtesy of MERCEDES-BENZ USA

Fig 4: Wheel Brake Cylinder Remove/Install Components (4 Of 5)

Courtesy of MERCEDES-BENZ USA

Fig 5: Wheel Brake Cylinder Remove/Install Components (5 Of 5)

Courtesy of MERCEDES-BENZ USA

	Remove/install
	Risk of poisoning  from swallowing brake fluid. Risk of injury  from skin and eye contact with brake fluid	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
	Risk of injury  . Skin or eye injuries may result when handling hot or glowing objects.	Wear protective gloves, protective clothing and safety glasses, if necessary.	AS00.00-Z-0002-01A
	Brake fluid notes		AH42.50-P-0001-01A
	Notes on repairs to brake system		AH42.00-P-0003-01A
1	Remove rear wheel
Remove/install wheels, rotate if necessary			AP40.10-P-4050G
2	Remove retaining bolt (122)	Replace locking bolt (122).
		Safety screw, brake drum to wheel hub Safety screw, brake drum to wheel hub	*BA42.10-P-1001-16A
3	Release parking brake and detach brake drum (119)	Should it prove impossible to remove the brake drum (119), turn back the automatic adjuster to release the brake shoes (92). →
		Adjust automatic brake adjuster	AR42.10-P-0169-01GG
		Clearance of brake shoes Adjustment value for automatic adjuster	*BE42.10-P-1002-13A
4	Unhook upper retracting springs (116)	Make sure that the upper retracting springs (116) are seated correctly.
		Removal and installation tool	Fig 9
5	Extract push rod (107) with spring (110) and spring seat (113)	Make sure that the push rod (107), compression spring (110) and spring cup (113) are seated correctly.
6	Detach brake line (125).	Immediately seal connections with stop plugs, the brake fluid reservoir must not run empty.
		Union nut, brake line to wheel brake cylinder	*BA42.10-P-1007-04B
		Record plug	Figure
		Box wrench bit	Figure
		Torque wrench	Figure
7	Remove the bolts (44) from the wheel cylinder (23)	Bolt, wheel brake cylinder to carrier plate	*BA42.10-P-1002-16A
8	Push apart brake shoes (92) and remove wheel brake cylinder (23).
9	Install in the reverse order
10	Bleed brake system	Except model 463 with code (979) special protection version	AR42.10-P-0010GG
		Model 463.236/248 with code (979) Special protection version	AR42.10-P-0010GS
	Check
	Risk of accident  when commissioning the vehicle due to a lack of braking effect when the service brake is operated for the first time after repair work.	Before starting the engine, actuate brake pedal several times until pressure is built up and maintained in the brake system.	AS42.50-Z-0002-01A
11	Press brake pedal several times and check brake system for leaktightness	Except model 463.236/248 with code (979) Special protection version	AR42.10-P-0100-01A
	Risk of accident  when commissioning the vehicle due to a lack of braking effect when the service brake is operated for the first time after repair work.	Before starting the engine, actuate brake pedal several times until pressure is built up and maintained in the brake system.	AR42.10-P-0014GS
12	Inspect braking system for proper operation and leaks	MODEL 463.236/248 with CODE 979 (Special protection version)	AS42.50-Z-0002-01A

CHECK VALUES FOR BRAKE SHOES

Number	Designation			Model 460, 461, 463
BE42.10-P-1002-13A	Adjustment value for automatic adjuster	Installation dimension "a"	mm	82
		Distance "b"	mm	11
		Picture		AR42.10-P-0169-01GG

DRUM BRAKE

Number	Designation		Model 460	Model 461
BA42.10-P-1001-16A	Safety screw, brake drum to wheel hub	Nm	20	20

DRUM BRAKE

Number	Designation		Model 463
BA42.10-P-1001-16A	Safety screw, brake drum to wheel hub	Nm	20

DRUM BRAKE

Number	Designation		Model 460	Model 461
BA42.10-P-1002-16A	Bolt, wheel brake cylinder to carrier plate	Nm	10	10

DRUM BRAKE

Number	Designation		Model 463
BA42.10-P-1002-16A	Bolt, wheel brake cylinder to carrier plate	Nm	10

BRAKE LINES, BRAKE HOSES

Number	Designation		Model 460	Model 461
BA42.10-P-1007-04B	Union nut, brake line to wheel brake cylinder	Nm	15	15

BRAKE LINES, BRAKE HOSES

Number	Designation		MODEL 463 (except 463.236/248/270/271/272/273) MODEL 463.236/248 except CODE 979	Model 463.236/248 with code 979 (Special protection MB Guard)
BA42.10-P-1007-04B	Union nut, brake line to wheel brake cylinder	Nm	15	15

BRAKE LINES, BRAKE HOSES

Number	Designation		Model 463.270/271	Model 463.272/273
BA42.10-P-1007-04B	Union nut, brake line to wheel brake cylinder	Nm	-	-

Fig 6: Identifying Box Wrench Bit (000 589 75 03 00)

Courtesy of MERCEDES-BENZ USA

Fig 7: Identifying Record Plug (129 589 00 91 00)

Courtesy of MERCEDES-BENZ USA

Fig 8: Identifying Torque Wrench (001 589 75 21 00)

Courtesy of MERCEDES-BENZ USA

Fig 9: Identifying Removal And Installation Tool (116 589 01 62 00)

Courtesy of MERCEDES-BENZ USA