Disassemble/assemble drive pinion

AR35.30-B-0459D

12.02.16

Rear axle 743 with Vehicle 688.232, 688.244, 688.254, 688.255, 688.277

Rear axle 743.439 with Vehicle 688.156, 688.176, 688.177

Rear axle 743.498 with Vehicle 688.272, 688.276

B35.31-0053-06

1 Collar nut

2 Coupling flange

3 Seal

4 Threaded ring

5 Thrust washer

6 Taper roller bearing

7 Split washer

8 Spacer washer

9 Taper roller bearing

10 Drive pinion (bevel gear)

11 Inner race - Roller bearing

12 Lock ring

13 Immobilization spanner

	Disassemble
1	Remove the pinion		AR35.30-B-0458E
2	Remove the collar nut (1) from the coupling flange (2)		*717589003100
3	Remove the coupling flange (2).		*035589013300
4	Remove the threaded ring (4) with the seal (3) and the thrust ring (5)
5	Remove the roller bearing from the pinion (11)		AR35.30-B-0459-02A
			*000589453300
6	Pull the taper roller bearings from the pinion		AR35.30-B-4300-01A
			*000589453300
7	Remove the threaded ring seal (4) with an appropriate drift
	Check:
8	Clean and check the components for damage and wear and replace what needs to be replaced	Each ring gear and pinion assembly bears an engraved number on the pinion front side and the oblique side of the ring gear. Only sets with identical numbers must be assembled.
	Assembling
9	Install the roller bearing on the pinion (11)		AR35.30-B-0459-02A
10	With pressure, install the taper roller bearings on the pinion		AR35.30-B-4300-01A
11	Install the new seal (3) in the threaded ring (4)		AR35.30-B-4670-02A
			*312589051500
			*BR00.45-B-1001-01A
			*BR00.45-B-1001-06A
12	Install the threaded ring (4) with the seal (3) and the thrust ring (5) on the pinion
13	Install the coupling flange (2).
14	Install the collar nut (1) on the coupling flange (2)		*717589003100
			*BA35.30-B-1001-06C
15	Install the split washer (7) and check bearing friction moment		AR35.30-B-0470-04C
			*001589492100
			*354589012100
		Friction moment of pinion bearings	*BE35.31-B-1001-02C
		Pinion's split washers	*BE35.31-B-1002-02C
16	Install the pinion		AR35.30-B-0458E

Test values for rear axle center assembly friction torque

Número	Denominação			Axes 743.4


BE35.31-B-1001-02C	Friction moment of the pinion bearings		Nm	1.4 ... 3.5
BE35.31-B-1002-02C	Thickness of bipartite washers of the pinion bearings - 0.02 mm increments	minimum	mm	6.74
		Maximum	mm	7.60