Check flywheel, rework if necessary · ar0330b8022dd · Mercedes-Benz WIS

AR03.30-B-8022DD

Check flywheel, rework if necessary

12.02.16

Cumbustion engine 906.999 with CODE M09 (Federal engine EPA 04)

Cumbustion engine 924.92 with CODE M09 (Federal engine EPA 04)

Cumbustion engine 926.95 with CODE M09 (Federal engine EPA 04)

Cumbustion engine 926.942 with Vehicle 382.176, 382.171 with CODE M09 (Federal engine EPA 04)

W03.30-0019-09

1 Flywheel

1.1 Flywheel with diameter 403 (Series 900, 904 engines with clutch diameter 362)

1.2 Flywheel Ø 443 (engines 900, 904, 924 withclutch Ø 362)

1.3 Flywheel with diameter 443 (Series 900, 902, 904, 906 engines with clutch diameter 395) or flywheel diameter 487 (Series 902, 906, 924, 926 engines with clutch diameter 430)

2 Starter ring gear

3  Precision straightedge

A Flywheel of diameter

B Flywheel diameter for seating of the ring gear

c Flywheel diameter on crankshaft flange

d Flywheel diameter for the mounting of the clutch

E Maximum flywheel width

	REMOVAL
1	Remove the flywheel (1).		AR03.30-B-8002DD
	Examine
2	Clean the flywheel (1) and inspect the clutch surface (friction surface) for burned spots, scores and cracks, and check also the unevenness with a precision straightedge (3)	 Should there be a problem, The clutch face (friction face) has to be machined by grinding or precision lathe.
		If the burned spots or cracks are too deep and the machining would result in a smaller thickness than the minimum specified for the flywheel: 	*BE03.30-B-1008-03E
		Install a new flywheel (1).
		Precision straightedge
	Machining
3	Machine the flywheel (1)		*BE03.30-B-1002-03E
			*BE03.30-B-1003-03E
			*BE03.30-B-1004-03E
			*BE03.30-B-1005-03E
		 A higher coarseness will cause higher wear of the clutch disk lining, where as on a much more smoother finish, clutch disengaging presents difficulties for clutch uncoupling.	*BE03.30-B-1006-03E
			*BE03.30-B-1007-03E
		 When machining the clutch surface (friction surface), the minimum flywheel width (E), between the friction surface and the contact surface has to be maintained.	*BE03.30-B-1008-03E
4	Inspect the axial and radial run-out of the flywheel (1)		*BE03.30-B-1009-03E
	Installing
5	Install the flywheel (1).		AR03.30-B-8002DD

Flywheel

Número	Denominação		Engine 902.9; 904.9, 906.9, 924.9 with Ø 443 flywheel and Ø 395 clutch	Engine 902.9, 906.9, 926.9 with Ø 487 flywheel and Ø 430 clutch


BE03.30-B-1002-03E	Gear rack housing diameter	mm	392,435...392,575	432,490...432,645
BE03.30-B-1003-03E	Flywheel's diameter at the crankshaft's flange	mm	114,960...115,020	114,960...115,020
BE03.30-B-1004-03E	Clutch housing diameter	mm	435,000...435,155	475,000...475,155
BE03.30-B-1005-03E	Maximum admissible eccentricity of the flywheel (measured at the ring gear seating surface	mm	0,2	0,2
BE03.30-B-1006-03E	Flywheel friction surface finishing roughness, Rz	mm	0,016	0,016
BE03.30-B-1007-03E	Flywheel total thickness	mm	64	64
BE03.30-B-1008-03E	Minimum admissible distance between the friction surface and the face that contacts the crankshaft	mm	55	55
BE03.30-B-1009-03E	Maximum admissible lateral deviation of the flywheel friction surface	mm	0,1	0,1

Flywheel

Número	Denominação		Engine 902.9, 906.9, 924.9, with Ø 443 flywheel and automatic gearbox	Engine 902.9, 904.9, 906.9, 924.9, with Ø 443 flywheel and Spicer clutch


BE03.30-B-1002-03E	Gear rack housing diameter	mm	392,435...392,575	392,435...392,575
BE03.30-B-1003-03E	Flywheel's diameter at the crankshaft's flange	mm	114,960...115,020	114,960...115,020
BE03.30-B-1004-03E	Clutch housing diameter	mm	-	435,000...435,097
BE03.30-B-1005-03E	Maximum admissible eccentricity of the flywheel (measured at the ring gear seating surface	mm	-	-
BE03.30-B-1006-03E	Flywheel friction surface finishing roughness, Rz	mm	0,016	0,016
BE03.30-B-1007-03E	Flywheel total thickness	mm	56	56
BE03.30-B-1008-03E	Minimum admissible distance between the friction surface and the face that contacts the crankshaft	mm	-	55
BE03.30-B-1009-03E	Maximum admissible lateral deviation of the flywheel friction surface	mm	-	-

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