TM 10-3930-675-24-2
VIBRATION DAMPER REPLACEMENT - CONTINUED
0203 00
INSPECTION
NOTE
Ensure vibration damper has been cleaned and is free of dirt, grease, and other foreign matter.
1.
Check mounting web for cracks and housing for dents or raised surfaces. If any of these conditions are noted, vibration
damper must be replaced.
2.
Scrape paint from four locations on either side of vibration damper as shown.
NOTE
Thickness check will result in a total of eight measurements.
If thickness recorded varies more than 0.010 in. (0.25 mm) between any of eight measurements, or
if thickness at any one point exceeds 1.772 in. (45 mm), replace vibration damper.
3.
Measure and record thickness of vibration damper at two places on each of four selected locations as follows:
a.
Measure thickness at 0.125 in. (3.18 mm) from outer lip.
b.
Measure thickness at 1.0 in. (25.4 mm) from outer lip.
1 IN.
(25.4 MM)
0.125 IN.
(3.18 MM)
THICKNESS MEASUREMENT
NOTE
Eccentricity (out of round) and wobble (face alignment) checks are performed to verify correct instal-
lation and serviceability of vibration damper. If either check exceeds 0.011 in. (0.28 mm), vibration
damper is defective and must be replaced.
4.
Attach dial indicator to front cover as indicated and "0" dial indicator. Manually bar engine over one complete revolu-
tion (360) and record total movement of dial indicator.
0203 00-2
