ar4220p0540rt

Adjust parking brake

유형 ar · 주제 42.20 · 버전 0200 · 2010-12-02

적용 대상: MODEL 251

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위치

기능 그룹 2 섀시 › 42 브레이크-유압장치 및 기계장치 › 42.20 주차 브레이크 — 시리즈 251

EinPAS 21 브레이크/진공압 시스템/압축 공기 시스템 › 21.16 주차 브레이크 › 21.16.5 주차 브레이크 전체 — 시리즈 251

AR42.20-P-0540RT

Adjust parking brake

30.11.10

MODEL 251

Adjust parking brake

P42.20-2248-07

1 Brake disk

2 Rubber insert

3 Thumbwheel

4 Brake shoes

Modification notes

1.9.10

"Perform brake test on test bench" reference changed

Test sequence augmented/revised

Removing

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

Notes on repairs to brake system

All models

AH42.00-P-0003-01A

1

Release parking brake

2

Lift/jack up vehicle

AR00.60-P-1000RT

3

Remove rear wheels

AP40.10-P-4050RT

Adjust

4

Remove rubber insert (2)

5

Bring brake shoes (4) into contact with parking brake drum

Turn the adjusting wheel (3) by means of a screw driver until the brake shoes (4) contact the brake drum and the brake disk (1) cannot be turned by hand anymore.

Positioning direction for applying the brake shoes (4): Turn both adjustment wheels from above downwards.

6

Detach adjustment wheel (3)

Loosen left and right adjustment wheel by the same number of teeth. It must be possible to rotate the rear wheel or brake disk (1) completely freely by hand.

Checking

7

Operate the parking brake lever several times and check the travel of the parking brake lever

Number of notches at which the parking brake must be adjusted if up to that point there is insufficient braking effect

*BE42.20-P-1001-01H

8

Release parking brake and check unobstructed movement of rear wheels or brake disks

Install

9

Fit rear wheels

AP40.10-P-4050RT

Danger!

Risk of death caused by limbs being caught or crushed by rotating parts when performing tests on the brake test stand

Never leave the vehicle unattended on the rollers except in an emergency. Ensure that no one is under the vehicle or near rotating parts during testing. In case of emergency, use the EMERGENCY STOP switch to shut down test stand.

AS42.00-Z-0001-01A

10

Carry out brake test on the test stand

AP42.00-P-4290BA

Adjustment values for parking brake

Number

Designation

Model 251

BE42.20-P-1001-01H

Number of notches at which the parking brake must be adjusted if up to that point there is insufficient braking effect

7

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