Check brake forces of service brake

AR42.10-W-5000Z

Check brake forces of service brake

28.08.2019

Model

959.001/008/016/018/201/208/216/218/401/408/416/418



Check

 Warning

Risk of accident from vehicle starting off by itself when engine running. Risk of injury (bruises and burns) resulting from working on the engine while it is being started or when it is running.

Secure vehicle to prevent it from starting off by itself. Wear closed and snug-fitting work clothes. Do not touch hot or rotating parts.

AS00.00-Z-0005-01A

 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 OFF switch to shut down test stand.

AS42.00-Z-0001-01A

Notes on reference values for checking brake forces of service brake

AH42.10-W-0011-01A

1

Connect manometers to brake cylinders of available axles.

 Test kit

*360589002100

2

Start the engine and completely fill compressed-air system at idle speed.

3

Switch on roller brake test stand.

4

Drive vehicle into roller brake test stand.

 Run engine.

5

Using the brake pedal, apply the specified test pressures to the brake cylinder in stages and compare the brake forces achieved for each axle with the reference values.

Minimum brake force on 1st axle at test pressure

*BE42.10-N-1001-17N

Minimum brake force on 2nd axle at test pressure

*BE42.10-N-1002-17N

Minimum brake force on 3rd axle at test pressure

*BE42.10-N-1003-17N

If the reference values are not achieved,



determine the causes and repair the brake system.

6

Drive the vehicle off the roller brake test stand.

7

Operate parking brake.

8

Switch off engine.

9

Switch off roller brake test stand.

10

Detach all pressure gauges.

Reference values for brake force

Number

Designation

Model 959.001/008/201/208/401/408

Model 959.016/018/216/218/416/418

BE42.10-N-1001-17N

Minimum brake force on 1st axle at test pressure

0.4 bar

kN

0,0

0,0

1.0 bar

kN

4,0

3,4

1.5 bar

kN

7,3

6,2

2.0 bar

kN

10,4

9,0

2.5 bar

kN

13,6

11,7

3.0 bar

kN

16,7

14,3

3.5 bar

kN

19,7

16,9

4.0 bar

kN

22,8

19,5

4.5 bar

kN

25,8

22,1

5.0 bar

kN

28,8

24,6

5.5 bar

kN

31,7

27,2

6.0 bar

kN

34,7

29,7

6.5 bar

kN

37,7

32,3

7.0 bar

kN

40,6

34,8

7.5 bar

kN

43,6

37,4

8.5 bar

kN

49,7

42,6

Reference values for brake force

Number

Designation

Model 959.001/008/201/208/401/408

Model 959.016/018/216/218/416/418

BE42.10-N-1002-17N

Minimum brake force on 2nd axle at test pressure

0.4 bar

kN

0,0

0,0

1.0 bar

kN

3,1

3,4

1.5 bar

kN

5,6

6,2

2.0 bar

kN

8,1

9,0

2.5 bar

kN

10,6

11,7

3.0 bar

kN

13,0

14,3

3.5 bar

kN

15,3

16,9

4.0 bar

kN

17,7

19,5

4.5 bar

kN

20,0

22,1

5.0 bar

kN

22,3

24,6

5.5 bar

kN

24,6

27,2

6.0 bar

kN

26,9

29,7

6.5 bar

kN

29,2

32,3

7.0 bar

kN

31,6

34,8

7.5 bar

kN

33,9

37,4

8.5 bar

kN

38,6

42,6

Reference values for brake force

Number

Designation

Model 959.001/008/201/208/401/408

Model 959.016/018/216/218/416/418

BE42.10-N-1003-17N

Minimum brake force on 3rd axle at test pressure

0.4 bar

kN

-

0,0

1.0 bar

kN

-

3,4

1.5 bar

kN

-

6,2

2.0 bar

kN

-

9,0

2.5 bar

kN

-

11,7

3.0 bar

kN

-

14,3

3.5 bar

kN

-

16,9

4.0 bar

kN

-

19,5

4.5 bar

kN

-

22,1

5.0 bar

kN

-

24,6

5.5 bar

kN

-

27,2

6.0 bar

kN

-

29,7

6.5 bar

kN

-

32,3

7.0 bar

kN

-

34,8

7.5 bar

kN

-

37,4

8.5 bar

kN

-

42,6