Checking adjuster

AR42.10-T-0190BA

Checking adjuster

23.7.07



Checking

1

Secure vehicle against rolling

2

Release parking brake

 Reservoir pressure of service brake must be at least 8 bar.

3

Remove protective cap (3) of adjuster (1)

4

Adjust the brake adjuster (1) two to three detent positions counterclockwise

 Use only a box wrench or socket wrench for adjusting. Leave the box wrench or socket wrench on the brake adjuster (1) after adjusting.

The detent positions are indicated by a clicking sound of the overload clutch in the slack adjuster.

5

Checking adjuster

 To do this, operate brake 5 to 10 times with partial braking, only actuate
approx. 2 bar.

 The slack adjuster is OK, if the box wrench or socket wrench adjusts with each operation clockwise, the movement of the box wrench becoming smaller with each operation.

 The slack adjuster is defective if the box wrench or socket wrench:

 does not turn,

 adjustment only takes place during the first operation or

 moves forwards and then back again each time the brake is applied.

If the slack adjuster is defective the brake caliper must be replaced: 

Model 613.358/388 with rear axle 746.217:

Replace brake caliper

AR42.10-T-0090BA

6

Lightly grease protective cap (3) of adjuster (1) and fit on

 Leave adapter (2) on the adjuster (1). When installing the protective cap (3), ensure that good access to the removal tab is available.

*BR00.45-Z-1021-06A

Number

Designation

Order number

BR00.45-Z-1021-06A

Assembly 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