Symptom Tree t007
| Cause | Correction |
|---|
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Lubricating oil drain interval is excessive |
Verify the correct lubricating oil drain interval. Refer to the OEM service manual or Cummins Engine Oil Recommendations, Bulletin 3810340. |
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Air intake system restriction to air compressor is excessive |
Replace the air compressor air cleaner (if installed). Check the air intake piping. Check engine air intake restriction if the air compressor inlet is plumbed to the vehicle or equipment intake system. Refer to the OEM service manual. |
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Contaminants are not being drained from the system on a regular basis |
Drain the reservoirs daily. Refer to the OEM service manual or Cummins Engine Oil Recommendations, Bulletin 3810340 . |
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E-type system is not plumbed correctly |
Install an Econ valve, a check valve, and system hoses. Refer to Procedure 210-001. |
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Air compressor pumping time is excessive |
Replace the desiccant cartridge on the Turbo/CR 2000 air dryer. Refer to the OEM service manual. Check the air compressor duty cycle. Install a larger air compressor, if necessary. Refer to Procedure 210-001. |
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|
Carbon buildup is excessive in the air discharge line, check valve, or cylinder head |
Check for carbon buildup. Replace the air compressor discharge line, if necessary. Check the turbocharger for oil leaks. Check the intake tube for oil. Refer to the OEM service manual. |
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Engine angularity during operation exceeds specification |
Refer to the Engine Specification Data sheet. |
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Engine crankcase pressure is excessive |
Check for excessive blowby. Refer to the OEM service manual. |
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Lubricating oil pressure is above specification |
Check the oil pressure. Refer to the OEM service manual. |
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Air compressor runs hot |
If coolant temperature is above normal, refer to the OEM service manual. |
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Lubricating oil drain line is restricted |
Remove the air compressor and check the oil drain holes in the air compressor and the accessory drive. Refer to the OEM service manual. |
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|
Air compressor is excessively worn or internally damaged |
Replace or rebuild the air compressor. Refer to the OEM service manual or the manufacturer’s instructions. |
