Symptom Tree t009
| Cause | Correction |
|---|
|
Air governor is malfunctioning or not set correctly |
Check the air governor for correct operation. Refer to Procedure 012-017. |
 |
|
Unloader valve is malfunctioning |
Check the unloader valve and unloader body seal. Refer to Procedure 012-013. |
|
|
Air compressor intake or exhaust valve leaks air |
Inspect the air compressor intake and exhaust valve assemblies. Refer to Procedures 012-103, 012-104, or 012-106. |
|
|
Air compressor is excessively worn or internally damaged |
Replace or rebuild the air compressor. Refer to Procedure 012-014. Replace the desiccant element on the Turbo/CR 2000 air dryer (if equipped). Refer to the manufacturer’s instructions. |
|
|
Cover gasket is ruptured (Holset® SS models only) |
Check the discharge line for blockage. Refer to Procedures 012-003, 012-103, 012-104, and 012-106. Check the cover gasket for flatness. Replace the cover gasket. |
