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Air compressor / General system
Troubleshooting flowchart, air compressor
B
Faults
05.11.2001
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a
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Troubleshooting flowchart, air compressor
Text-module
Text-module
Pressure regulator vents too frequently without the brake being operated
Text-module
Tank pressure incorrect
Text-module
Warning:
Always disconnect the red coupling head (storage tank) first when unhitching the
trailer or trailed vehicle.
(Only then is the trailer or trailed vehicle secured against rolling away!)
Pressure regulator vents too
frequently without the brake
being operated
I
I
Check operating range (pres-
sure) of pressure regulator
Not OK
Set pressure regulator (fit new
one if necessary)
I
I
OK
I
Check air compressor for leaks
- screw couplings
- drain valve
- non-return valve in pressure re
gulator
Tank pressure not OK
I
I
Check B019-sensor, compres-
sed-air volume
(Chapter 9000 Reg. E)
Display incorrect
Fit new B019-sensor, compres-
sed-air volume
to do so, connect test pressure
gauge to storage tank coupling
head (red) and compare with dis-
play on A007-display unit.
I
I
Display correct
I
I
Check air compressor for leaks
Leak found
Repair leak(s)
I
No leak
I
See "Air compressor filling time
too long" fault scenario