Checking service pressures on four-circuit protection valve

AR42.60-B-0040TA

Checking service pressures on four-circuit protection valve

12.02.16



Check

1

Connecting the tests

All vehicles:

 Connection of circuit test 1 (1), connection 21

 Connection of supply pressure test or tires filling connection (3)

Vehicles 958.2/ 4:

 Connection of circuit test 3 (2), connection 23

Vehicles 958.0:

 Connection of circuit test 4 (4), connection 28



*360589002100

2.1

Reduce the operation pressure on circuit 3 by approximately 7.5 bar

Vehicles 958.2/4

2.2

Reduce the operation pressure on circuit 4 by approximately 7.5 bar

Vehicles 958.0

3

Starting and supply the compressed air system until turning off the pressure regulator

4

Check the operation pressure

Service brake, circuits 1 and 2

*BE42.10-B-1003-10E

Auxiliary users, circuits 3 and 4

*BE42.10-B-1004-10E

 If the operating pressures differ from indicated nominal values:



Replace the four-circuit protection valve with integrated pressure limiter.

Número

Denominação

Chassis 958.0; 958.2; 958.4

BE42.10-B-1003-10E

Operating pressure of the service brake circuits 1 and 2

bar

10 (-0,2...0,6)

BE42.10-B-1004-10E

Operating pressure of the parallel consumers - circuits 3 and 4

bar

8,5 (-0,5...0,2)