Symptom Tree t009
| Cause | Correction |
|---|
|
Air governor is malfunctioning or not set correctly |
Check the air governor for correct operation. Make sure the air governor is located less than 0.6 m [2 ft] from the air compressor. Refer to Procedure 012-017. |
 |
|
Unloader valve is malfunctioning |
Check the unloader valve and unloader body seal. Refer to Procedure 012-101, 012-103, 012-104, or 012-106. |
|
|
Splined drive coupling or gear is excessively worn |
Check the coupling for wear. Refer to Procedures 012-102, 012-105, 012-107, and 012-108. |
|
|
Air compressor is excessively worn or internally damaged |
Replace or rebuild the air compressor. Refer to the OEM service manual. |
|
|
Water cooled air compressor, head or head gasket leaking (if equipped) |
Look for coolant in the oil. Check or replace compressor head or head gasket. Refer to Procedures 012-101 and 012-103. |
