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Air compressor / General system
Troubleshooting flowchart, air compressor
B
Faults
05.11.2001
8800
000001
B
a
7/7
Capitel
Docu-No.
Index
Date
Version
Page
Troubleshooting flowchart, air compressor
Text-module
Leak(s) in tractor air compressor
Text-module
Note:
Chapter 8800 Reg. C - Air compressor plan
Chapter 8800 Reg. E - Overview of air compressors
Chapter 8800 Reg. E - Checking dual-line brake system in tractor
Chapter 8800 Reg. E - Checking single-line brake system in tractor
Chapter 8820 Reg. F - Setting pressure regulator (8.1 bar)
Chapter 8820 Reg. F - Trailer control valve (single-line)
Leak(s) in tractor air compres-
sor
Fill air compressor until pressure
regulator vents
I
Switch engine off, ignition ON
I
I
Connect test pressure gauge to
storage tank coupling head (red).
Reduce pressure to 7.0 bar.
Read off pressure at test pressure
gauge and do not actuate brake
any more
I
Pressure change is more than
0.1 bar after 5 minutes
No
Press brake down fully and lock
Yes
I
Read off pressure at test pressure
gauge after 3 minutes. Pressure
change
Locate and repair leak
Yes
Coupling heads, trailer control
valve, pressure regulator, drain
valve, screw couplings
No
I
Start engine and fill air compres-
sor completely (8.1 bar). Switch
engine off , brake not actuated
Check pressure regulator for le-
aks