ar4210w0700a

Remove/install combination cylinder

Type ar · topic 42.10 · version 0400 · 2007-10-19

Applies to: MODEL 374, 375.1 /3 /4, 930, 932, 933, 934, 940, 942, 943, 944, 950, 952, 953, 954, 957, 958.2 /4, 970, 972, 974, 975, 976 with disk brake

Where it sits

Function group 2 Chassis › 42 Brakes - hydraulic and mechanical systems › 42.10 Service brake — Series 374 · Series 375 (models 1**, 3**, 4**) · Series 930 · Series 932 · Series 933 · Series 934 · Series 940 · Series 942 · Series 943 · Series 944 · Series 950 · Series 952 · Series 953 · Series 954 · Series 957 · Series 958 (models 2**, 4**) · Series 970 · Series 972 · Series 974 · Series 975 · Series 976

EinPAS 21 Brakes/vacuum system/compressed-air system › 21.15 Service brake/vacuum system › 21.15.40 Service brake, front — Series 374 · Series 375 (models 1**, 3**, 4**) · Series 930 · Series 932 · Series 933 · Series 934 · Series 940 · Series 942 · Series 943 · Series 944 · Series 950 · Series 952 · Series 953 · Series 954 · Series 957 · Series 958 (models 2**, 4**) · Series 970 · Series 972 · Series 974 · Series 975 · Series 976

EinPAS 21 Brakes/vacuum system/compressed-air system › 21.15 Service brake/vacuum system › 21.15.42 Service brake, rear — Series 374 · Series 375 (models 1**, 3**, 4**) · Series 930 · Series 932 · Series 933 · Series 934 · Series 940 · Series 942 · Series 943 · Series 944 · Series 950 · Series 952 · Series 953 · Series 954 · Series 957 · Series 958 (models 2**, 4**) · Series 970 · Series 972 · Series 974 · Series 975 · Series 976

AR42.10-W-0700A

Remove/install combination cylinder

15.10.07

MODEL 374, 375.1 /3 /4, 930, 932, 933, 934, 940, 942, 943, 944, 950, 952, 953, 954, 957, 958.2 /4, 970, 972, 974, 975, 976
with disk brake

Remove/install combination cylinder

W42.10-0030-09

1 Nuts

2 Combination brake cylinder

5 Spherical cap

3 Spring actuator release bolt

4 Compressed air lines

Modification notes

23.8.07

Combination brake cylinder changed, added.

Step 3.1

BT42.10-W-2000-01A

Remove/install

1

Secure vehicle against rolling

2

Release parking brake

3

Mechanically loosen combination brake cylinder (2)

Single diaphragm cylinder

AR42.10-W-0030A

Double diaphragm cylinder

AR42.10-W-0030B

Installation: New combination brake cylinders (2) are delivered in released position.

Combination brake cylinder changed

Only combination brake cylinders made by Knorr.

BT42.10-W-2000-01A

4

Apply parking brake

5

Detach compressed-air lines (4)

Installation: Replace O-rings.

With compressed air connection system "VOSS 230".

AR42.10-W-0900A

With compressed air connection system "VOSS 232" (NG 8, 12) or "SCHÄFER SDF" (NG 6).

AR42.10-W-0900C

6

Remove combination brake cylinder (2)

Installation: Check the connection housing of the brake caliper and the combination brake cylinder (2).

If there is condensation water or corrosion in the connection housing of the brake caliper, a new brake caliper must be installed:

Disk brake SB 5000, SB 6000, SB 7000, SN 6000, SN 7000

AR42.10-W-0090A

Disk brake SN 5000

AR42.10-W-0090C

If there are traces of corrosion on the sealing surfaces of the housing opening and the brake lever on the combination brake cylinder (2) a new combination brake cylinder (2) must be installed.

Clean sealing surfaces on the combination brake cylinder (2) and brake caliper. Coat spherical cap (5) at brake lever with assembly grease.

Use new self-locking nuts (1).

*BR00.45-Z-1021-06A

*000589260100

*001589442100

Single diaphragm brake cylinder

*BA42.10-N-1001-08A

Dual diaphragm brake cylinder

*BA42.10-N-1008-08A

Notes on self-locking nuts and bolts

AH00.00-N-0001-01A

7

Install in the reverse order

8

Check function and effectiveness of service brake

Brake cylinder

Number

Designation

Model
374, 940, 942, 943, 944
with disk brake

Model
375.1, 970, 972, 974, 975, 976 with disk brakes

BA42.10-N-1001-08A

Self-locking nut, combination cylinder to brake caliper

M161.5

Nm

180

180

BA42.10-N-1008-08A

Self-locking nut, double membrane cylinder to brake caliper

M161.5

Nm

180

180

Brake cylinder

Number

Designation

Model
375.3/4, 950, 952, 953, 954, 957 with disk brake

Model 930, 932, 933, 934 with disk brake

BA42.10-N-1001-08A

Self-locking nut, combination cylinder to brake caliper

M161.5

Nm

180

180

BA42.10-N-1008-08A

Self-locking nut, double membrane cylinder to brake caliper

M161.5

Nm

180

180

Brake cylinder

Number

Designation

Model
958.2/4 with disk brakes

BA42.10-N-1001-08A

Self-locking nut, combination cylinder to brake caliper

M161.5

Nm

180

BA42.10-N-1008-08A

Self-locking nut, double membrane cylinder to brake caliper

M161.5

Nm

180

Repair materials

Number

Designation

Order number

BR00.45-Z-1021-06A

Installation grease (white)
part number: II 14525

Knorr-Bremse AG
Moosacher Str. 80
80809 München
Germany
Tel. +49-89-3547-0
Fax +49-89-3547-2767
www.knorr-bremse.de

Remove/install combination cylinder
Remove/install combination cylinder

001 589 44 21 00

Torque wrench handle

Open end wrench

000 589 26 01 00

Referenced documents