Remove/install rear wheel hub

AR35.20-B-0310E

Remove/install rear wheel hub

04.08.2020

Rear axle

743.454 in model 979

with code BB5 (Disc brakes on front and rear axle)

Rear axle

743.498 in model 688

with code BB5 (Disc brakes on front and rear axle)

1

Race ring

2

Wheel hub

3

Stop washer

4

Grooved nut

5

Lock plate

6

Grooved nut

7

Wheel screw

8

Semi-shaft

9

Nut



Remove

1

Remove the wheels

Remove/install wheels
Rear axles 743.454

AR40.10-B-1100E

Rear axles 743.498

AR40.10-B-1100F

2

Remove the support with a brake caliper of the rear axle

.

AR42.10-B-0600C

3

Remove the axle shaft (8)

Rear axles 743.454

AR35.30-B-0620G

Rear axles 743.498

AR35.30-B-0620C

4

Unlock the locking plate (5) and remove the grooved nuts (6) and (4)

 Slotted nut wrench

*312589030700

 Slotted nut wrench

*314589030700

5

Remove the guard plate (3)

6

Remove the wheel hub (2)

 The brake disc and external bearings have been removed together with wheel hub.

 Puller

*035589013300

7

Remove the radial seal and the inner race of the inner bearing from the wheel hub (2)



Check

8

Check the surface wear of thrust ring friction (1), if necessary, replace it

.

AR35.20-B-0310-05A

In case of damages, wear or furrows on its friction surface:



Replace the track ring.



Install

9

Install the thrust ring (1)

Only in case of replacement.

.

AR35.20-B-0310-05A

10

Install the inner race of the inner bearing and the radial seal in the wheel hub (2)

 Lubricate the bearing with grease.

 Use a new radial retainer.

Grease, DB supply specification 6804 - Class 267.0

*BR00.45-Z-1107-06A

11

Install the wheel hub (2) in the axle


Install with care:
to not damage the radial seal or the thread of the axle.

 Put grease on the thrust ring and sealing.

12

Install the internal race of external bearing

 Lubricate the bearing with grease.

Grease, DB supply specification 6804 - Class 267.0

*BR00.45-Z-1107-06A

13

Install the guard plate (3)

14

Install the grooved nut (4), the locking plate (5), and the grooved nut (6)

15

Adjust the wheel hub bearings axial clearance

Rear axles 743.454

AR35.20-B-0301-01B

Rear axles 743.498

AR35.20-B-0301-01H

 .Grooved nut

*BA35.20-B-1001-06E

.Axial clearance of wheel hub bearings

*BE35.20-B-1001-02A

 Dial gage

*001589532100

 Dial indicator holder

*363589022100

 Slotted nut wrench

*314589030700

16

Install the holder with the brake caliper

.

AR42.10-B-0600C

17

Install the axle shaft (8)

Rear axles 743.454

AR35.30-B-0620G

Rear axles 743.498

AR35.30-B-0620C

18

Install the wheels

Rear axles 743.454

AR40.10-B-1100D

Rear axles 743.498

AR40.10-B-1100F

Wheel hub

Number

Designation

Rear axle 743.0/1/2/3/4

BE35.20-B-1001-02A

Axial clearance of wheel hub bearings

mm

0,02...0,04

 Hub

Number

Designation

Rear axle 743.498

Rear axle 743.454

BA35.20-B-1001-06E

Grooved nut

Internal

1st stage

Nm

300

300

2nd stage

° angular

- 140

- 140

External

M52

Nm

300...350

-

M55

Nm

-

-

M62

Nm

-

300...350

M75

Nm

-

-

Repair materials

Number

Designation

Order number

BR00.45-Z-1107-06A

Grease, DB supply specification 6804 - Class 267.0

Use corresponding commercially available repair materials.