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 TM 55-1905-219-14-4
3-40.2. CONNECTING ROD-MAINTENANCE INSTRUCTIONS (Cont).
LOCATION
ITEM
ACTION
REMARKS
INSPECTION (Cont)
5. Connec-
Bushings
Check the connecting rod
Bushings that
ting rod
(9)
bushings for indications
have over-
bushings
of scoring, overheating
heated may
or other damage.
become loose
and creep
together, thus
blocking off
the supply of
lubricating
oil to the
piston pin
and spray
nozzle.
6. Piston
Pin (10)
Inspect the piston pin
Bushings that
pin
for signs of fretting.
have over-
heated may
become loose
and creep
together, thus
blocking off
the supply of
lubricating
oil to the
piston pin
and spray
nozzle.
When reusing a
piston pin, the
highly polished
and lapped sur-
face of the pin
must not in any
way be refin-
ished. Polish-
ing or refin-
ishing the pis-
ton pin is not
recommended as
it could result
in very rapid
bushing wear.
Since it is
subjected to
downward load-
3-846
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