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 TM 55-1905-220-14-11
5-71.
BLOWER - MAINTENANCE INSTRUCTIONS
(Continued).
LOCATION
ITEM
ACTION
REMARKS
OVERHAUL - INSPECTION (Cont)
g. Inspect the inside surface of the
blower housing for burrs and
scoring. The inside surface must
be smooth for efficient operation
of the blower. If the inside
surface of the housing is slightly
scored or burred, it may be
cleaned up with emery cloth.
h. Check the finished ends of the
blower housing for flatness and
burrs. The end plates must sit
flat against the blower housing.
i.
The finished inside face of each
end plate must be smooth and flat.
If the finished face is slightly
scored or burred, it may be
cleaned up with emery cloth.
j.
Examine the serrations in the
blower timing gears for wear and
peening. Also check the teeth for
wear, chipping or damage. If the
gears are worn to the point where
the backlash between the gear
teeth exceeds .004", or if they are
damaged sufficiently to require
replacement, both gears must be
replaced as a set.
k.
Check the blower drive shaft
serrations for wear or peening.
Replace the shaft if it is bent.
l.
Inspect the blower drive coupling
springs (pack) and the cam for wear.
Replace all worn or excessively
damaged blower parts.
m. Clean oil strainer in the vertical
oil passage at the bottom of each
blower end plate, and blow out all
oil passages with compressed air.
5-991
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