ar4220s0540a

Adjust parking brake

Type ar · emne 42.20 · version 0205 · 2012-04-24

Gælder for: MODEL 638

Ikke tilgængelig på “da”; vises på Engelsk.

Placering

Funktionsgruppe 2 Chassis › 42 Bremsehydraulik og -mekanik › 42.20 Parkeringsbremse — Serie 638

EinPAS 21 bremser/vakuumsystem/trykluftsystem › 21.16 Parkeringsbremse › 21.16.5 parkeringsbremse komplet — Serie 638

AR42.20-S-0540A

Adjust parking brake

16.4.12

MODEL 638

Adjust parking brake

S42.20-2501-06

1 Adjustment screw

2 Adjusting nut

Modification notes

25.9.02

Value modified from 190...260 to 230...260

Value changed in BE42.20-N-1001-01B

*BE42.20-N-1001-01B

25.9.02

Value changed from 120...150 to 130...160

Value changed in BE42.20-N-1002-01B

*BE42.20-N-1002-01B

Adjust

1

Bed in the parking-brake brakes

Leave parking brake applied in first tooth and bed in brake for 6 seconds at a speed of 80 km/h. Then release the parking brake. Do not thermally overload brake.

2

Unscrew one wheel bolt at each of the rear wheels

With a light-alloy rim, remove

wheel.

AR40.10-S-1100A

Danger!

Risk of death caused by vehicle slipping or toppling off of the lifting platform.

Align vehicle between columns of vehicle lift and position four support plates at vehicle lift support points specified by vehicle manufacturer.

AS00.00-Z-0010-01A

3

Raise vehicle

Special instructions for lifting and supporting vehicle

Model 638

AH00.60-N-0100-01A

4

Relieve the load on the brake cables of the parking brake via the adjusting screw (1).

The spreader should be relieved of load.

5

Position free wheel nut hole above the adjusting nut (2).

6

Adjust the adjusting nut (2).

Insert flat screwdriver through the wheel nut hole and rotate the adjusting nut (2) until the wheel locks up. Then turn 4 teeth in opposite direction.

7

Screw in adjusting screw (1) until the brake cables no longer sag

8

Operate the parking brake 2-3 times

9

Adjust the brake cable of the parking brake

AR42.20-S-0540-01A

Left-hand drive vehicle

*BE42.20-N-1001-01B

Right-hand drive vehicle

*BE42.20-N-1002-01B

Pedal force meter
gotis://B_42/43.1_03.0

10

Bed in the parking-brake brakes

Leave parking brake applied in first tooth and bed in brake for 6 seconds at a speed of 80 km/h. Do not thermally overload brake.

11

Operate the parking brake 2-3 times

When the parking brake is released it must be possible to rotate the wheels freely without resistance.

12

Tighten wheel bolt

With light alloy rims, fit wheel.

AR40.10-S-1100A

Steel rim wheel bolt

*BA40.10-N-1001-01C

Wheel bolt for light alloy rims

*BA40.10-N-1002-01C

Checking

13

Carry out brake test on the test stand

The parking brake pedal must ensure adequate braking effects after 3-4 notches.

Brake testing on test stand

Model 638, 901.6, 902.6, 903.6, 904.6

AP42.00-D-4290A

Test values for parking brake

Number

Designation

Model 638

BE42.20-N-1001-01B

Force on the parking brake pedal

O

230 to 260

BE42.20-N-1002-01B

Pulling force on hand brake lever

O

130 to 160

Wheels

Number

Designation

Type
638

BA40.10-N-1001-01C

Steel rim wheel bolt

Nm

175

BA40.10-N-1002-01C

Light alloy rim wheel bolt

Nm

175

Henviste dokumenter