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 TM 55-1905-220-14-10
5-5. MARINE GEAR MAINTENANCE INSTRUCTIONS (Continued).
LOCATION
ITEM
ACTION
REMARKS
INSTALLATION (Cont)
b. Checking Marine Gear Flange. Bolt a thousandths indicator
or gauge to the drive spider of the marine gear so that the
indicator is perpendicular to the face of the marine gear
housing and the indicator stem is riding on the face of the
flange. Rotate the drive spider and note the face run-out of
the marine gear flange. The face run-out must not exceed
.017-inch maximum total indicator reading for the SAE No.
O flange, or a .013-inch maximum total indicator reading for
the SAE No. 1 flange.
c. Checking Marine Gear Pilot Ring. With the indicator bolted
as in Paragraph b above, adjust the indicator stem so that it
will ride on the pilot surface of the flange. Rotate the drive
spider and note the pilot surface run-out must not exceed
.010-inch for the SAE No. O flange, or .008-inch for the
SAE No. 1 flange. This applies to a continuous 270-degree
arc if the balance of the pilot surface is negative in read-
ing; otherwise, it means all 360-degrees.
5-142
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