Adjust parking brake

AR42.20-G-0540C

Adjust parking brake

21.06.2017

Model

437.420/425

Model

437.421/426 with rear axle 747.366

1

Pin

2

Clevis

3

Spring brake cylinder

2

Clevis

4

Parking brake lever

a

Adjustment dimension

3

Spring brake cylinder

5

Bolts

 

Remove/install

1

Remove bolt (1) from spring-loaded brake cylinder (3) clevis (2)

 Parking brake released.

 Installation: Install pin (1) free of tension. Renew cotter pin and coat with long-life grease.

Long-life grease

*BR00.45-Z-1001-06A

2

Set parking brake lever (4) to stop

3

Operate parking brake



Measure

4

Measure adjustment dimension (a)

 The adjustment dimension (a) is measured between the clevis bore center (2) and the parking brake lever bore center (4).

Model 437.420/425
Model 437.421/426 with rear axle 747.366 with front axle 737.366Adjustment dimension (a) of spring-loaded cylinder when brake is not applied

*BE42.20-N-1001-01E

Adjust

5

Loosen bolts (5)

6

Set adjustment dimension (a)

 By moving the spring-loaded brake cylinder (3) in the elongated holes. Emergency release device not actuated.



Measure

7

Tighten screws (5) and measure adjustment dimension (a) again

 Bolt, spring brake cylinder to rear axle

*BA42.20-N-1001-01C

8

Install in the reverse order

Test and adjustment values for parking brake

Number

Designation

Model 437.420/425

Model 437.421/426

BE42.20-N-1001-01E

Adjustment dimension (a) of spring-loaded cylinder when brake is not applied

mm

78,5 (+ 0,2)

78,5 (+ 0,2)

Picture

AR42.20-G-0540C

AR42.20-G-0540C

 Parking brake

Number

Designation

Model 437.420/425
Model 437.421/426 with rear axle 747.366

BA42.20-N-1001-01C

Bolt, spring brake cylinder to rear axle

Nm

100

Repair materials

Number

Designation

Order number

BR00.45-Z-1001-06A

Long-life grease

A 000 989 63 51 11