TM 5-2420-230-24-2
B3.9 and B5.9 Series Engines
Troubleshooting Symptoms Charts
Section TS - Troubleshooting Symptoms
Page TS-55
Engine Vibration Excessive (Continued)
Cause
Correction
Check or repair components if necessary.
Drivetrain components worn or unbalanced
.......
Refer to OEM service manual.
OK
F
Check the flywheel housing alignment. Refer
lywheel housing is not aligned correctly
.......
to Procedure 016-006.
L-639