EXPLANATORY NOTES ON THE MAINTENANCE ACTIVITIES
Inspection and adjustment 95XF series
3-38
3.28 CHECKING THE COMPRESSOR LINE
Remain at a safe distance from
rotating and/or moving
components.
Note:
When measuring excessive values, the inside of
the air dryer housing and the silencer on the
exhaust should first be cleaned.
Then repeat the check.
1. Bring the engine up to operating
temperature.
2. Blow off the brake system to a pressure
below the cut-in pressure of the pressure
switch.
3. Remove the compressor control pipe (1),
which is c onnected at connection 23 of the
air dryer.
Then plug the opening at connection 23.
4. Build up pressure in the brake system
(pressure switch should cut out).
5. When the engine is not running, remove the
safety valve f rom the compressor line and
replace it with a test nipple.
6. Connect a pressure gauge (measuring
range 0-16 bar) to the test nipple.
7. Start the engine and run it at maximum
speed.
8. The pressure gauge should indicate a
pressure below 2 bar with the governor
switched off. If the pressure reading
exceeds the s pecified value, the line
between compressor and air dryer should
be replaced.
Note:
If the pressure reading is too high, there is
excessive carbon deposit in the compressor
line. This may be caused by a poor
condition of the compressor (oil
consumption).
R600250
1
R600249
5
200424
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