Quantcast TOO MUCH VIBRATION

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TROUBLESHOOTING
TESTING AND ADJUSTING
9. NOT ENOUGH POWER (Cont.)
Cause:
Correction:
Defect in Fuel Injector
Make Reference to Item 7.
Leaks in Air Inlet System
Check the pressure in the air intake manifold.
Look for
restrictions in the air cleaner.
Governor And Fuel Control Linkage
Make sure governor is moving fuel control linkage against fuel
setting screw.  Make adjustment to get full travel of linkage.
Install new parts for those that have damage or defects. If control
linkage is not against stop and engine runs below rated speed
under load:
(a) Check high idle and adjust if necessary.
(b) Air-fuel ratio control may be restricting control linkage travel
and should be adjusted if necessary.
Wrong Valve Clearance
Make adjustment according to Subject, VALVE CLEARANCE.
Wrong Fuel Injection Timing
Make adjustment to timing. See Subject, FUEL TIMING.
Fuel Setting Incorrect
Make an adjustment of the fuel setting. See FUEL SETTING
AND RELATED INFORMATION FICHE for the correct fuel
setting.  Also see Subject, FUEL SETTING for the correct
procedure.
Defect in Aftercooler
Check temperature of inlet and outlet water supply. Remove any
external or internal restrictions.
Turbocharger Has Carbon Deposits or Other
Make inspection and repair of turbocharger as necessary.
Causes of Friction.
10. TOO MUCH VIBRATION
Cause:
Correction:
Vibration Damper Loose
Check vibration damper for damage. Tighten bolts. If vibration
damper bolt holes have damage or wear, replace with new parts.
Vibration Damper Has A Defect
Install a new vibration damper
Engine Supports Are Loose, Wrong or Have A
Tighten all mounting bolts. Install new components if necessary.
Defect
Driven Equipment Is Not In Alignment Or Is Out of
Check alignment and balance, correct if needed.
Balance
Misfiring or Running Rough
Make Reference to Item 7.
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