Check, remachine flywheel · ar0330w8022j · Mercedes-Benz WIS

AR03.30-W-8022J

Check, remachine flywheel

23.11.10

ENGINES 900.9 in MODELS 375.1, 970, 972, 975, 976

ENGINES 902.9 in MODEL 375.3, 950.5 /6, 952.5 /6, 953.6, 954.5

ENGINES 902.9 in MODEL 957 except CODE (MS8) Natural gas engine

ENGINES 902.9 in MODELS 375.1, 970, 972, 974, 975, 976

ENGINES 924.9 in MODELS 958.0, 970, 972, 974, 975, 976

ENGINES 925.9 in MODELS 970, 972, 974

ENGINES 926.9 in MODEL 958.0

ENGINES 926.9 in MODEL 950.5 /6, 952.5 /6, 953.6, 954.5, 957, 958.2

W03.30-1057-12

1 Flywheel

2 Ring gear

D Flywheel dia. for clutch mounting

E Minimum width between clutch friction surface and support flange

	Removing
1	Remove flywheel (1)		AR03.30-W-8002J
	Checking
2	Check coupling friction surface on flywheel (1) for scorch marks, score marks and cracks	 If score marks and scorch marks can be seen weakly the flywheel (1) can be reworked. If score marks and scorch marks are clearly visible and perceptible then the flywheel (1) must be replaced.
3	Measure minimum width between coupling friction surface and mounting flange (E) at flywheel (1)	 The flywheel (1) must be replaced if the value is outside of tolerance.	*BE03.30-N-1008-03B
	Reworking
4	Rework the coupling friction surface on the flywheel (1) using a brake drum and brake disk turning machine	 After refacing, there must not be any shrink holes or chatter marks present on the clutch friction surface.
		Flywheel dia. for mounting clutch (D)	*BE03.30-N-1004-03B
		Peak-to-valley height (Rz) of clutch friction surface	*BE03.30-N-1006-03B
		Minimum width between coupling friction surface and mounting flange (E)	*BE03.30-N-1008-03B
	Install
5	Install flywheel (1)		AR03.30-W-8002J

Check values for flywheel

Number	Designation		Engine 900.9, 904.9 with a 403 dia. flywheel and a 362 dia. clutch	Engine 900.9, 904.9 with a 443 dia. flywheel and a 362 dia. clutch


BE03.30-N-1004-03B	Flywheel dia. for mounting clutch (D)	mm	395.000 to 395.057	395.000 to 395.057
BE03.30-N-1006-03B	Peak-to-valley height (Rz) Clutch friction surface	μm	16	16
BE03.30-N-1008-03B	Flywheel - minimum width between friction surface and mounting flange for repairs (E)	mm	55	55

Check values for flywheel

Number	Designation		Engine 900.9, 902.9, 904.9, 906.9, 924.9 with a 443 mm dia. flywheel and a 395 mm dia. clutch	Engine 902.9, 906.9, 925.9, 926.9 with a 487 mm dia. flywheel and a 430 mm dia. clutch


BE03.30-N-1004-03B	Flywheel dia. for mounting clutch (D)	mm	435.000 to 435.063	475.000 to 475.063
BE03.30-N-1006-03B	Peak-to-valley height (Rz) Clutch friction surface	μm	16	16
BE03.30-N-1008-03B	Flywheel - minimum width between friction surface and mounting flange for repairs (E)	mm	55	55

Check values for flywheel

Number	Designation		Engine 925.9, 926.9 with a 443 mm dia. flywheel and a 395 mm dia. clutch


BE03.30-N-1004-03B	Flywheel dia. for mounting clutch (D)	mm	435.000 to 435.155
BE03.30-N-1006-03B	Peak-to-valley height (Rz) Clutch friction surface	μm	16
BE03.30-N-1008-03B	Flywheel - minimum width between friction surface and mounting flange for repairs (E)	mm	55