Checking check valve

AR43.10-P-0023A

Checking check valve

21.6.94

Checking

1

Operate brake pedal several times until vacuum in brake booster is reduced

2

Connect tester (030) to brake booster

AR43.10-P-0024-01A

 Vacuum tester

*201589132100

 Test connector, for brake boosters with plug connection

*168589086300



Test connector for testing the check valve or brake booster

For brake boosters with screw connection

WF58.50-P-4310-01A



*BA43.10-P-1001-01A

3

Start engine and create a vacuum of 0.75 - 0.80 bar by accelerating and then suddenly releasing the accelerator pedal

 Reduce vacuum >0.8 bar by depressing the brake pedal.

4

Switch off engine

 Vacuum must not drop by more than 0.2 bar within 30 seconds.

Vacuum drop > 0.2 bar: replace vacuum line, if necessary: 

Check brake booster

AR43.10-P-0325A

5

Disconnect tester (030) from brake booster

Number

Designation

Model 129 up to 09/89

Model 129 as of 10/89

Model 140

Model 202

BA43.10-P-1001-01A

Vacuum line to brake booster

Nm

30

30

30

30

Number

Designation

Model 210

BA43.10-P-1001-01A

Vacuum line to brake booster

Nm

30