Remove/install drive pinion · ar3530b0458f · Mercedes-Benz WIS

AR35.30-B-0458F

Remove/install drive pinion

09.07.2020

Rear axle	745.008/011/014/016/038/042/043/097/099
Rear axle	745.012/013/014/033/099
Rear axle	745.043
Rear axle	745.093/094

Modification notes

21.08.2019	Threaded rings of pinion bearings	BA35.30-B-1002-06C
21.08.2019	Pinion (basic depth and thickness or compensation washers)	BE35.31-B-1005-03C
30.10.2019	Pinion (basic depth and thickness or compensation washers)	BE35.31-B-1005-03C

1	Coupling flange
2	Threaded ring
3	External tapered roller bearing
4	Split ring
5	Lock plate
6	Compensating washer
7	Roller bearing
8	Locking ring

B35.31-0051-01

B35.31-0050-01

	Remove
1	Remove the differential with ring gear	.	AR35.30-B-0464C
2	Remove the screw and lock plate (5) from the threaded ring of pinion (2)
3	Remove the threaded ring (2) from its housing	 In order not to damage the flange deflector, unscrew threaded ring a few turns and then move pinion away, by tapping in its end with a gentle mandrel. Do it until unscrewing completely the threaded ring.
		 Torque multiplier	*000589021300
		 Claw-type wrench	*384589000700
4	Screw temporarily two screws in the coupling flange (1), by holding the threaded ring (2) against the external bearing cover (3)	 Do not remove the pinion without tightening screws against the threaded ring, because this feature will prevent the bipartite ring (4) falls into the oil groove existing in the housing.
5	Remove the pinion housing by tapping on its end with a gentle mandrel
6	Remove the compensation washer from housing (6)
7	Remove the external race of cylindrical roller bearings (7)
8	Remove with a plier the lock ring from the external race of cylindrical roller bearings (8)
9	Remove the external race of cylindrical roller bearings (7), by tapping inside of housing with a mandrel	 Drift	*055589161500
10	Disassemble the pinion housing	.	AR35.30-B-0459C
	Install
11	Assemble the pinion set	.	AR35.30-B-0459C
12	Install the outer race of the cylindrical roller bearing (7) from inside of the housing	 Note the groove parallelism on the external race of cylindrical roller bearings and its housing.
		 Drift	*055589161500
13	Install the lock ring (8) in the external race of bearings (7) at the same direction of the pinion rotation
14	Install the internal race of cylindrical roller bearings (7)
15	Install some compensating washers (6) on the pinion housing inside the housing
16	Install both screws temporarily on the coupling flange (1) used to remove and tighten the pinion set
17	Install the pinion set by tapping slightly until the threaded ring leans against the front face and screw it manually	 Put previously the plastic bush in the internal race of cylindrical roller bearings (7) to avoid damages on the bearing.
		 Drift	*055589161500
18	Check the basic measurement of the pinion depth	Determine installed dimension of drive pinion gear	AR35.30-B-0458-01A
		Terolan 307/II, Dichtin 51, epple 22 sealant	*BR00.45-Z-1018-01A
		Pinion (basic depth and thickness or compensation washers)	*BE35.31-B-1005-03C
		 Adjusting device	*055589092100
		 Dial gage	*001589532100
19	Retighten the threaded ring (2)	 Apply a sealing agent on the screwed surface of the ring.
		Terolan 307/II, Dichtin 51, epple 22 sealant	*BR00.45-Z-1018-01A
		 Threaded rings of pinion bearings	*BA35.30-B-1002-06C
		 Torque multiplier	*000589021300
		 Claw-type wrench	*384589000700
20	Lock the threaded ring with lock plate (5)
21	Install the differential with ring gear	.	AR35.30-B-0464C

Differential. ring ear and pinion check values

Number	Designation			Rear axle 745.0
BE35.31-B-1005-03C	Pinion (basic depth and thickness or compensation washers)	Basic depth	mm	108
		Thickness of the compensating washers	mm	0,10, 0,15, 0,20, 0,25, 0,50