TM 5-3810-307-24-2-2
Rubber Element Vibration Damper -
Cleaning and Inspection (1-23)
Clean the damper with hot soapy water and a brush.
After rinsing with clean water, use compressed air to
dry.
Check the index lines (A) on the damper hub (B) and
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 and
missing pieces. If pieces of rubber are missing or the
member is more than 3.18 mm [1/8 in] below the metal
surface, replace the damper.
NOTE
Also look for forward movement of the
damper ring on the hub. Replace the damper
if any movement has occurred.
Viscous Vibration Damper - Cleaning and Inspection
Check the mounting web for cracks. Check the housing
for dents or raised surfaces. Replace the damper if any
of these defects are identified. Refer to replacement
procedure in this section.