A Series Diesel Engine Troubleshooting Logic 49
Excessive Vibration
Cause Correction
Engine Not Running Smoothly
Refer to Troubleshooting Logic for Rough
Running or Misfiring.
OK
Loose or Broken Engine Mounts
Check/Replace Engine Mounts. Refer to
the Equipment Manufacturer’s Service
Instructions.
OK
Damaged Fan or Malfunctioning
Accessories
Check/Replace the Vibrating Component.
Refer to the Equipment Manufacturer’s
Service Instructions.
OK
Malfunctioning Vibration Damper
(Six-Cylinder Only)
Inspect/Replace the Vibration Damper.
Refer to Page 164
OK
Malfunctioning Fan Hub
Inspect/Replace the Fan Hub.
Refer to Page 59, 63
OK
Worn or Damaged Alternator
Bearing
Check/Place the Alternator.
Refer to Page 144
OK
Flywheel Housing Misaligned
Check/Correct Flywheel Alignment.
Refer to Page 167
OK
(Continued)
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