Remove/install brake camshaft and bearing bracket

AR42.15-W-1050B

Remove/install brake camshaft and bearing bracket

05.07.2016

Model

374, 375.3, 930, 932, 933, 934, 949, 950, 952, 953, 954, 958.2/4 with rear axle 740.89, 748.23/24/27/70

Drum brake

Model

375.3 with rear axle 749.731

Drum brake

Modification notes

01.07.2016

Document revised completely.

1

Cover plate

2

Inner radial shaft sealing ring

3

Bearing bracket

4

Bolt

5

Outer radial shaft sealing ring

6

Bearing bracket sealing ring retainer

7

Brake carrier sealing ring retainer

8

Inner radial shaft sealing ring

9

Outer radial shaft sealing ring

10

Brake camshaft

11

Counter stay

12

Internal extractor

A

Mark



Notes on self-locking nuts and bolts

AH00.00-N-0001-01A



Remove

1

Remove wheel hub

Rear axle 748.27 with code KR83 (Tire pressure control system)

AR35.20-W-0311N

Rear axle 740.89, 748.2/70 without code KR83 (Tire pressure control system)

AR35.20-W-0310B

Rear axle 749.731

AR35.50-W-0003E

2

Remove brake shoes

AR42.10-W-1020B

3

Remove automatic linkage adjuster

Rear axle with brake wear sensor

AR42.15-W-0010B

Rear axle without brake wear sensor

AR42.15-W-0010BA

4

Remove cover plate (1) and pull out brake camshaft (10)

5

Remove brake carrier sealing ring retainer (7) from brake carrier

 Internal extractor

*000589293300

 Counter stay

*000589343300

6

Remove inner radial shaft sealing ring (8) from brake carrier sealing ring retainer (7)

7

Remove outer radial shaft sealing ring (9) from brake carrier

8

Remove bearing bracket (3)

9

Remove bearing bracket sealing ring retainer (6) from bearing bracket (3)

 Internal extractor

*000589293300

 Counter stay

*000589343300

10

Remove outer radial shaft sealing ring (5) from bearing bracket sealing ring retainer (6)



Install

11

Install new outer radial shaft sealing ring (5) into sealing ring retainer bearing bracket (6) and coat sealing lip of new outer radial shaft sealing ring (5) with grease

AR42.15-W-1050-03A

Long-life grease

*BR00.45-Z-1001-06A

12

Install sealing ring retainer bearing bracket (6) up to end stop in bearing bracket (3)

 Sleeve

*317589001400

13

Install bearing bracket (3) using new bolts

 Bolt, brake camshaft bearing bracket to axle housing

*BA42.15-N-1002-01A

14

Install new outer radial shaft sealing ring (9) into brake carrier and coat sealing lip of new outer radial shaft sealing ring (9) with grease

Long-life grease

*BR00.45-Z-1001-06A

 Drift

*360589001500

15

Install new inner radial shaft sealing ring (8) into sealing ring retainer brake carrier (7) and coat sealing lip of new inner radial shaft sealing ring (8) with grease

AR42.15-W-1050-03A

Long-life grease

*BR00.45-Z-1001-06A

16

Install sealing ring retainer brake carrier (7) up to end stop in brake carrier

 Sleeve

*317589001400

17

Grease bearings and splines of brake camshaft (10).

Long-life grease

*BR00.45-Z-1001-06A

18

Insert brake camshaft (10) with cover plate (1) so that the marking (A) faces outwards

19

Check, adjust axial play of brake camshaft (10)

AR42.15-W-1050-02A

End play of brake camshaft between brake cam and brake carrier

*BE42.15-N-1001-01A

20

Remove automatic linkage adjuster

Rear axle with brake wear sensor

AR42.15-W-0010B

Rear axle without brake wear sensor

AR42.15-W-0010BA

21

Install brake shoes

AR42.10-W-1020B

22

Install wheel hub

Rear axle 748.27 with code KR83 (Tire pressure control system)

AR35.20-W-0311N

Rear axle 740.89, 748.2/70 without code KR83 (Tire pressure control system)

AR35.20-W-0310B

Rear axle 749.731

AR35.50-W-0003E

23

Check function and effectiveness of service brake

Test values for mechanical system

Number

Designation

Model 374, 375.3, 958.2/4

Model 930, 932, 933, 934, 940, 942, 943, 944, 950, 952, 953, 954

BE42.15-N-1001-01A

End play of brake camshaft between brake cam and brake carrier

mm

1,0

1,0

Test values for mechanical system

Number

Designation

Model 949

BE42.15-N-1001-01A

End play of brake camshaft between brake cam and brake carrier

mm

1,0

 Brake mechanical system

Number

Designation

Model 374

Model 375.3, 930, 932, 933, 934, 950, 952, 953, 954

BA42.15-N-1002-01A

Bolt, brake camshaft bearing bracket to axle housing

Nm

180

180

 Brake mechanical system

Number

Designation

MODEL 958

Model 949

BA42.15-N-1002-01A

Bolt, brake camshaft bearing bracket to axle housing

Nm

180

180

Repair materials

Number

Designation

Order number

BR00.45-Z-1001-06A

Long-life grease

A 000 989 63 51 11