TM 5-2420-230-24-2
B3.9 and B5.9 Series Engines
Troubleshooting Symptoms Charts
Section TS - Troubleshooting Symptoms
Page TS-9
Air Compressor Will Not Maintain Adequate Air Pressure (Not Pumping Continuously)
This is symptom tree T008.
Cause
Correction
Block the vehicle wheels and check the air
system for leaks with spring brakes applied
and released. Check for leaks from the air
Air system leaks
.......
compressor gaskets and the air system hoses,
fittings, and valves. Refer to the Master Repair
Manual, Holset Air Compressors, Bulletin No.
3666121 and the OEM service manual.
OK
A
Inspect the air compressor intake and exhaust
valve assemblies. Refer to the Master Repair
ir compressor intake or exhaust valve leaks
.......
Manual, Holset Air Compressors, Bulletin No.
air
3666121.
OK
A
Check the air governor for correct operation.
ir governor is malfunctioning or not set
Refer to the Master Repair Manual, Holset Air
.......
correctly
Compressors, Bulletin No. 3666121.
L-593