Symptom Tree t075
| Cause | Correction |
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Electronic fault codes active or high counts of inactive fault codes |
Refer to Section TF in the Troubleshooting and Repair Manual for CELECT™ |
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Engine is misfiring |
Refer to the Engine Runs Rough or Misfires symptom tree. |
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Engine idle speed is set too low (electronically controlled fuel systems) |
Verify the correct idle speed setting. Increase the idle speed with the idle increment switch or an electronic service tool. Refer to the appropriate electronic service tool manual. |
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Engine idle speed is set too low (mechanical fuel systems) |
Adjust the fuel pump idle speed. Refer to Procedure 005-029. |
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Fan is loose, damaged, or not balanced |
Check the fan. Refer to Procedure 008-040. |
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Belt-driven accessories are malfunctioning |
Check the fan hub, alternator, refrigerant compressor, and hydraulic pump for interference. Isolate belt-driven accessories and check for vibration. Refer to Procedures 008-036, 013-001, 009-016 and the OEM service manual. |
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Engine mounts are worn, damaged, or not correct |
Check the engine mounts. Refer to the OEM service manual. |
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Vibration damper is damaged |
Inspect the vibration damper. Refer to Procedure 001-052. |
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Drivetrain components are malfunctioning or are not correct |
Compare the drivetrain components to the engine and equipment specifications. Isolate the drivetrain components and check for vibrations. Refer to the OEM specifications. |
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Power take-off (PTO) is damaged |
Check the PTO for damage and correct installation. Refer to the manufacturer’s instructions. |
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Gear-driven accessories are malfunctioning |
Check the hydraulic pump and air compressor. Isolate gear-driven accessories and check for vibration. Refer to the OEM service manual. |
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Flywheel housing is not aligned correctly |
Check the flywheel housing alignment. Refer to Procedure 016-006. |
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Flywheel or flexplate capscrews are loose or broken |
Check the flywheel or flexplate and the mounting capscrews. Refer to Procedure 016-005. |
