Vibration Damper, Rubber; Vibration Damper, Viscous - Doosan DX140R Shop Manual

Vibration Damper, Rubber

Inspect
Check the index lines (A) on the damper hub (B) and the inertia
member (C). If the lines are more than 1.59 mm [1/16 in] out of
alignment, replace the damper.
Inspect the rubber member for deterioration. If pieces of rubber
are missing or if the elastic member is more than 3.18 mm [1/8
in] below the metal surface, replace the damper.
Look for forward movement on the damper ring on the hub.
Replace the vibration damper if any movement is detected.
For vibration damper location, refer to "Engine Diagrams" on
page-30.

Vibration Damper, Viscous

Inspect
The silicone fluid in the vibration damper will become solid
after extended service
inoperative. An inoperative vibration damper can cause
major engine or drivetrain failures.
Check the vibration damper for evidence of fluid loss, dents, and
wobble. Inspect the vibration damper thickness for any
deformation or raising of the damper cover plate.
If any of these conditions are identified, contact your local
Cummins Authorized Repair Location to replace the vibration
damper.
For vibration damper location, refer to "Engine Identification" on
page-26.
QSB4.5 Engine
CAUTION!
and will make the
Figure 116
Figure 117
damper
Figure 118
SP001671
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