Remove/install combination brake cylinder for drum brake

AR42.10-B-0702HD

Remove/install combination brake cylinder for drum brake

09.08.2019

Model

963, 964 with rear axle 740.881/885, 749.154

with code B2B (Drum brakes on front and rear axle)

1

Brake spring release screw

2

Combination brake cylinder

3

Pin

4

Nut

5

Washer

6

Cotter pin

7

Compressed air piping

 Warning

Risk of injury caused by pinching or crushing when working on springs or spring bodies that are under tension

Use only approved tensioning devices; additionally screen off hazardous area if necessary. Check special tools for damage and proper operation (visual inspection). Wear protective gloves.

AS00.00-Z-0001-01A

Topical note

Notes on self-locking nuts and bolts

AH00.00-N-0001-01A

 

Remove/install

1

Screw out the brake spring release screw (1) with the parking brake released

 Installation: The new combination brake cylinders (2) are supplied separately.

 Type 963.4Accumulator spring relief bolt in relief position

*BA42.10-B-1006-08E

 Type 963.4Accumulator spring relief bolt in drive position

*BA42.10-B-1005-08E

 Type 964.2Spring-loaded actuator release screw in released position

*BA42.10-N-1006-08J

 Type 964.2Spring-loaded actuator release screw in driving position

*BA42.10-N-1005-08J

2

Position the parking brake valve in the full braking position

3

Remove the compressed air pipings (7)

AR42.10-W-0900H

4

Remove the cotter pins (6), the washers (5) and the pins (3)

 Installation: Install new pins (3), cotter-pins (6) and washers (5).

5

Remove the combination brake cylinder (2)

 Type 963.4Combined cylinder nut on support

*BA42.10-B-1003-08E

 Type 964.2Nut, combination brake cylinder to bracket

*BA42.10-N-1003-08J

 Open wrench

*000589260100

 Torque wrench handle

*001589442100

6

Install in reverse order

 Brake cylinder

Number

Designation

Type 963.4, 964.2 with Code B2B (Drum brake, on front and rear axle)

BA42.10-B-1003-08E

Combined cylinder nut on support

M16x1.5

Nm

180

 Brake cylinder

Number

Designation

Type 963.4, 964.2 with Code B2B (Drum brake, on front and rear axle)

BA42.10-B-1005-08E

Accumulator spring relief bolt in drive position

M16x1.5

Nm

35

 Brake cylinder

Number

Designation

Type 963.4, 964.2 with Code B2B (Drum brake, on front and rear axle)

BA42.10-B-1006-08E

Accumulator spring relief bolt in relief position

Knorr

M16x1.5

Nm

45

 Brake cylinder

Number

Designation

Model 963, 964

BA42.10-N-1003-08J

Nut, combination brake cylinder to bracket

Nm

180

 Brake cylinder

Number

Designation

Model 963, 964

BA42.10-N-1005-08J

Spring-loaded actuator release screw in driving position

Nm

35

 Brake cylinder

Number

Designation

Model 963, 964

BA42.10-N-1006-08J

Spring-loaded actuator release screw in released position

Nm

70