Remove/install wheel hub on trailing axle · ar3550w0003e · Mercedes-Benz WIS

AR35.50-W-0003E

Remove/install wheel hub on trailing axle

10.3.10

REAR AXLE 749.731

Remove/install wheel hub on trailing axle

W33.20-1016-06

1 Steering knuckle with brake

2 Radial shaft sealing ring

3 Tapered roller bearing (inner)

4 Bearing outer race (inner tapered roller bearing)

5 Wheel hub

6 Bearing outer race (outer tapered roller bearing)

7 Tapered roller bearing (outer)

8 Thrust plate

9 Cylinder head bolt

10 Clamp nut

11 Gasket

12 Cover

13 Screw

	Removing
1	Remove brake drum		AR42.10-W-1010A
2	Remove cover (12)
3	Loosen cylinder head bolt (9) and screw off clamp nut (10)		*389589001300
4	Remove thrust plate (8)
5	Remove wheel hub (5)	 Secure wheel hub (5) using suitable lifting device.
			*739589004300
6	Remove tapered roller bearing (7) from the wheel hub (5)
7	Remove tapered roller bearing (3) and radial shaft sealing ring (2)
8	Remove bearing outer races (4, 6)	 Only if the tapered roller bearings (3, 7) are replaced.
			*000589163300
			*000589683300
			*000589353300
	Install
9	Install bearing outer races (4, 6) in the wheel hub (5)	 Only if the tapered roller bearings (3, 7) are replaced. Use a suitable drift.
10	Grease tapered roller bearing (3) and insert in the wheel hub (5)		*BR00.45-Z-1034-06A
11	Install new radial shaft sealing ring (2) in the wheel hub (5)		*620589031500
		 Grease sealing lip of the radial shaft sealing ring (2)	*BR00.45-Z-1034-06A
12	Fill wheel hub (5) with grease		*BR00.45-Z-1034-06A
			*BF35.50-N-1001-01A
13	Pull on wheel hub (5)	 Secure wheel hub (5) using suitable lifting device.
			*739589004300
14	Grease tapered roller bearing (7) and insert in the wheel hub (5)		*BR00.45-Z-1034-06A
15	Push on thrust plate (8) and attach clamp nut (10)
16	Tighten clamp nut (10)	 When tightening, rotate the wheel hub (5) and using a rubber hammer exert a few blows diagonally on the wheel hub (5).
		When the specified tightening torque is reached the tapered roller bearings (3, 7) abut with zero clearance.
			*BA35.20-N-1001-06G
			*389589001300
17	Adjust wheel bearing play		AR35.20-W-0301-01A
			*BE35.20-N-1001-02D
			*363589022100
			*001589532100
			*389589001300
18	Secure clamping nut (10) with pan head bolt (9)		*BA35.20-N-1002-06G
19	Attach cover (12) with new gasket (11)		*BA35.20-N-1003-06G
20	Install brake drum		AR42.10-W-1010A

Test values for wheel hub

Number	Designation		Trailing axle 749.011/111/ 108/109/110/ 731/732/733


BE35.20-N-1001-02D	Wheel bearing play on wheel hub	mm	0.02...0.04

 Hub

Number	Designation			Trailing axle 749.108/109/110/731/732


BA35.20-N-1001-06G	Clamping nut at steering knuckle	M451.5	Nm	240
BA35.20-N-1002-06G	Cylinder head bolt to clamping nut		Nm	65
BA35.20-N-1003-06G	Bolt, cover to wheel hub	M8	Nm	35
		M16	Nm	-

 Leading, trailing axle

Number	Designation			Rear axle 733.731


BF35.50-N-1001-01A	Multipurpose grease	Capacity per wheel hub	g	180
		Specifications for Operating Fluids	Sheet	BB00.40-P-0267-01A