20-4391 Testing cooling system cap
1 | Leak tester |
2 | Double union |
3 | Cooling system cap |
4 | Air hose with tyre inflation connection |
Cooling system cap
Code number | 100 | |
Pressure relief valve opens at bar |
1.0 | +0.15 |
-0.10 | ||
Vacuum valve opens at bar | 0.1 | |
Special tools
Testing pressure relief valve
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1 Screw cap (3) tight to double union (2).
2 Insert leak tester (1) into the double union and fold down lever.
1 001 589 71 21 00
2 000 589 75 63 00
3 Connect air hose with tyre inflation connection (4) to the leak tester (1).
4 Pressurize cooling system cap (2) (see table for opening pressure).
Testing vacuum valve
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1 The vacuum valve (arrow) must be resting against the rubber seal, must lift off easily and spring back when released.
Note
Caps with surface rust should be replaced.
Referenced documents
- ra0002d000200x 0002 - Installation overview Engines 601.940/941, 602.940
- ra0002d000300x 0003 - Sectional views Engines 601.940/941, 602.940
- ra0002d000400x 0004 - Special tools Engines 601.940/941, 602.940
- ra0002d000500x 0005 - Technical data Engines 601.940/941, 602.940
- ra2002d000500x 0005 - Technical data Engines 601.940/941, 602.940
- ra2002d000600x 0006 - Coolant system diagrams and thermostat Engines 601.940/941, 602.940