Remove/install radial seal at drive pinion gear

AR35.30-T-4670BA

16.11.09

REAR AXLE 746.217 in MODEL NMB613.358 /388

Remove/install radial seal at drive pinion gear

T35.30-0108-06

1 Nut

2 Propeller shaft

3 Collar nut

4 O-ring

5 Drive flange

6 Radial sealing ring

7 Drive pinion

T35.30-0109-06

3 Collar nut

5 Drive flange

8 Safety groove

A Half groove width

B Half groove width

	Removing
1	Remove propeller shaft (2)		AR41.10-T-0050B
2	Pull rear axle shaft out of differential assembly	 Only one rear axle shaft must be pulled out of the differential assembly.	AR35.30-T-0620BA
3	Measure pinion drag torque and record results	 The pinion drag torque measured at this position is the basic figure required during installation of the collar nut (3).
			*745589012100
4	Remove collar nut (3)	 When removing the collar nut (3) no impact wrench/driver may be used, as the two tapered roller bearings shift due to the blows on the drive pinion (7) and as a result damage to the bearing and gear set can occur.
			*001589720900
			*717589003100
5	Remove drive flange (5)		*035589013300
6	Remove radial sealing ring (6)
	Install
7	Install new radial sealing ring (6)	 Coat the non pregreased sealing lip on the radial sealing ring (6) with hypoid automatic transmission fluid.
			*740589001500
		Hypoid gear oil	*BR00.45-Z-1023-06A
8	Slide drive flange (5) on the drive pinion (7)	 No hammer or comparable tool may be used, otherwise the two tapered roller bearings shift due to blows on the drive pinion (7) and as a result damage to the bearing and gear set can occur.
9	Tighten collar nut (3) with new O-ring (4)	 When tightening the collar nut (3) no impact wrench/driver may be used, as the two tapered roller bearings shift due to blows on the drive pinion (7) and as a result damage to the bearing and gear set can occur.
		 Coat thread of collar nut (3) with Loctite 577.
			*BA35.30-N-1013-03H
			*000589392100
			*001589720900
			*717589003100
		Loctite 577	*BR00.45-Z-1067-01A
10	Mark collar nut (3)	 Position of collar nut (3) relative to the left outer edge of safety groove (8).
11	Tighten collar nut (3) by a half groove width (A) of the safety groove (8) further
12	Measure drag torque and compare it with the recorded base figure	 If the measured pinion friction torque is smaller than the noted basic value, the operation steps 10 to 12 must be repeated sufficiently often until the measured pinion torque is the same or slightly greater than the basic value.
		 If the pinion torque was not determined before the repair, a pinion torque of approx. 3 Nm should be achieved.
			*001589720900
			*717589003100
			*745589012100
13	Secure collar nut (3)		AR35.30-T-4670-04BA
14	Install rear axle shaft		AR35.30-T-0620BA
15	Install propeller shaft (2)		AR41.10-T-0050B
16	Check oil level in rear axle	 Adjust to correct level if necessary
	Rear axle - oil change		AP35.00-T-3501B

Differential assembly with differential

Number	Designation		Rear axle 746.217


BA35.30-N-1013-03H	Collar nut of drive flange to drive pinion	Nm	250

000 589 39 21 00

Puller

Torque wrench

Wrench socket

Retainer wrench

001 589 72 09 00

035 589 01 33 00

717 589 00 31 00

745 589 01 21 00

Torque wrench

Drift

740 589 00 15 00

Repair materials

Number	Designation	Order number
BR00.45-Z-1067-01A	Loctite 577	Henkel Loctite Deutschland GmbH Arabellastrasse 17 81925 München Germany Tel. +49 899268-0 Fax + 49 899101978 www.Loctite.de
BR00.45-Z-1023-06A	Hypoid gear oil	A 000 989 28 03

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