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Centinel System – Repair Manual – Air Compressor Will Not Stop Pumping

Symptom Tree  t010

This is symptom tree t010
Cause Correction

Air system leaks

Block the vehicle wheels and check the air system for leaks with spring brakes applied and released. Check for leaks from the air compressor gaskets and the air system hoses, fittings, tanks, and valves. Refer to Procedure 012-019 and the OEM service manuals. Turn the keyswitch ON. Walk around the engine and listen for air leaks.
 

Air system component is malfunctioning

Check the operation of check valves, alcohol evaporators, air dryers, and other OEM-installed air system components. Refer to the OEM service manual.
 

Air compressor intake or exhaust system leaks air

Inspect the air compressor head assembly and replace if required. Refer to Procedure 012-003.
 

Air governor is malfunctioning or not set correctly

Check the air governor for correct operation. Refer to the OEM service manual.
 
Last Modified:  10-Jun-2005
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