Remove/Install Rear Axle Brake Disk - Ar42.10-D-0240TS

Model 907

MODIFICATION NOTES

07.06.2019

Work procedure revised

The whole document

Shown on model 907 with rear axle 741.422

	Risk of death caused by vehicle slipping or toppling off of the lifting platform.	Align vehicle between vehicle lift columns and position the four support plates at the vehicle lift support points specified by the vehicle manufacturer.	AS00.00-Z-0010-01A
	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.	AS42.50-Z-0002-01A
	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
	Risk of injury . Moving parts can pinch, crush or, in extreme cases even sever extremities.	No parts of the body or limbs should be within the operating area of mechanical components when moving components.	AS00.00-Z-0009-01A
	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 caused by scraping or cutting body parts on sharp vehicle parts	Always wear protective gloves when working on or near sharp and non-deburred vehicle parts. Deburr repair panels. Model 907	AS00.00-Z-0017-01A
	Notes on threaded connections fastened using a tightening angle-based tightening process		AH00.00-P-0020-01A
	Notes on self-locking nuts and bolts		AH00.00-N-0001-01A
	Brake fluid notes		AH42.50-P-0001-01A
	Notes on repairs to brake system		AH42.00-P-0003-01A
	Notes on evaluating brake disks		AH42.10-N-9406-07B
	Remove
1	Remove brakepads on rear axle.		AR42.10-D-1710TS
2	Detach brake caliper (3).	Do not detach brake hose. Remove brake caliper (3) and tie up.	AR42.10-D-0080TS
3	Remove brake caliper support (5).		AR42.10-D-0221TS
4	Increase clearance of brake shoes.	Model 907 except code B25 (Electric parking brake) Model 907 except code IT5 (5.0 tons) To do so, release adjustment wheel of brake adjuster through the bore for wheel bolt. Model 907 with code IT5 (5.0 tons) To do so, release the brake adjuster adjustment screw. If the parking brake is not released, ↓ Release parking brake.
5.1	Remove safety screw (2) of brake disk (1).	Model 907 with rear axle 741.421/423 To do so, position two wheel bolts and counterhold brake disk (1) with a suitable tool. Then unscrew wheel bolts.
5.2	Remove wheel flange (4).	Model 907 with rear axle 741.422/453/454/455/456, 748 To do so, remove the bolts (6). Position suitable tool between the two wheel studs for counterholding.
6	Remove brake disk (1).
	Check
7	Check brake disk (1) for damage and wear.
	Assess condition of brake disks	Clean contact surfaces of brake disk (1).	AP42.10-D-4256TS
		Assembly cleaner If brake disk (1) is damaged or worn, ↓ replace brake disks (1) and brakepads of the rear axle.	*BR00.45-Z-1028-04A
8	Check brakepads for damage and wear.
	Assess condition of brake linings	If the brakepads are reused, ↓ clean contact surfaces on carrier plates of brakepads.	AP42.10-D-4252TS
		Assembly cleaner If a brakepad is damaged or worn, ↓ replace all service brake brakepads on rear axle. Dispose of brakepads as special waste. The local authorities can provide information regarding whether disposal is also permitted as industrial waste similar to domestic waste. If the brakepads are replaced, ↓ also replace all anti-rattle springs.	*BR00.45-Z-1028-04A
9	Check anti-rattle springs for damage and wear.	If the anti-rattle springs are reused, ↓ clean anti-rattle springs. Assembly cleaner If the anti-rattle springs are damaged or worn, ↓ replace all anti-rattle springs on respective brake caliper support.	*BR00.45-Z-1028-04A
10	Check parking brake for damage and wear.	Model 907 except code B25 (Electric parking brake) Minimum dimension for brake shoes incl, carrier plate If the component parts of the parking brake are damaged or worn,	*BE42.20-N-1001-01TS
		↓ replace affected components. Replace brake shoes of parking brake on both sides of vehicle.
11	Push back existing brake pistons and check for ease of movement.	Model 907 except code B25 (Electric parking brake) Resetting device If the fill level in brake fluid reservoir is too high, ↓ extract brake fluid. Commercially available devices/tools Extraction bellows If a brake piston is sluggish, ↓ replace brake caliper (3).	Fig 1
		Remove/install rear-axle brake caliper	AR42.10-D-0080TS
12	Check brake caliper (3) for damage and leakage.	If the brake caliper (3) is damaged or leaking or a boot of a brake piston is damaged, ↓ replace brake caliper (3). Remove/install rear-axle brake caliper	AR42.10-D-0080TS
13	Check component parts of brake caliper guide for damage and wear.	If corresponding findings are present, ↓ replace affected components. Remove/install rear axle brake caliper guide	AR42.10-D-0402TS
	Install
14	Lightly grease centering of brake disk (1) at wheel hub.	Long-life grease	*BR00.45-Z-1001-06A
15	Mount brake disk (1).
16.1	Screw in safety screw (2) of brake disk (1).	Model 907 with rear axle 741.421/423 To do so, position two wheel bolts and counterhold brake disk (1) with a suitable tool. Then unscrew wheel bolts. Bolt, brake disk to rear axle shaft/wheel hub	*BA42.10-N-1001-13TS
16.2	Install wheel flange (4).	Model 907 with rear axle 741.422/453/454/455/456, 748 Clean contact surfaces of wheel flange (4). Position suitable tool between the two wheel studs for counterholding. Replace screw/bolts (6). Collar bolt, wheel flange ring with brake disk to wheel hub	*BA42.10-N-1002-13TS
17	Adjust basic clearance of parking brake.	Model 907 except code B25 (Electric parking brake) Model 907 except code IT5 (5.0 tons)	AR42.20-D-0540-02TS
		Model 907 with code IT5 (5.0 tons)	AR42.20-D-0540-02TSB
		Model 907 except code B25 (Electric parking brake) except code IT5 (5.0 tonner)	*BA42.20-N-1003-01TS
		Model 907 with code IT5 (5.0 tonner) except code B25 (Electric parking brake) Friction value of brake adjuster adjustment screw	*BA42.20-N-1004-01TS
18	Install brake caliper support (5).		AR42.10-D-0221TS
19	Install brake caliper (3).		AR42.10-D-0080TS
20	Install brakepads.		AR42.10-D-1710TS
	Check
21	Check fill level in brake fluid reservoir.
	Brake system - inspect fluid level	If the fill level is incorrect, ↓	AP42.10-D-4210TS
		correct fill level. Brake fluids (DOT 4 plus) Commercially available devices/tools Extraction bellows	BB00.40-P-0331-00A
22	Perform brake test.
	Brake test		AP42.00-D-4290TS

CHECK VALUES FOR PARKING BRAKE

Number	Designation		Model 907 except code B25 (Electric parking brake)
BE42.20-N-1001-01TS	Minimum dimension for brake shoes incl. carrier plate	mm	4,5

REAR AXLE BRAKE DISKS

Number	Designation			Model 907
BA42.10-N-1001-13TS	Bolt, brake disk to rear axle shaft/wheel hub	M8	Nm	18

REAR AXLE BRAKE DISKS

Number	Designation			Model 907
BA42.10-N-1002-13TS	Collar bolt, wheel flange M14x1.5 ring with brake disk to wheel hub	Stage 1	Nm	80
		Stage 2	∠ °	40

PARKING BRAKE

Number	Designation		Model 907 except code IT5 (5.0 tons)
BA42.20-N-1003-01TS	Brake adjuster adjustment screw	Nm	-

PARKING BRAKE

Number	Designation	Model 907 with code IT5 (5.0 tonner)
except code B25 (Electric parking brake)

Fig 1: Resetting Device (000 589 52 43 00)

REPAIR MATERIALS

Number	Designation	Order number
BR00.45-Z-1001-06A	Long-life grease	A 000 989 63 51 11
BR00.45-Z-1028-04A	Assembly cleaner	A 000 986 56 01