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 TM 9-2520-270-34
3. REMOVE PISTON ASSEMBLY (1)
FROM ROD (2)
a. Remove retaining ring (3) from
groove (4) in piston assembly (1).
Discard retaining ring.
4 . REMOVE AND DISCARD PACKING
RETAINER (5) AND PREFORMED
b. Remove and discard piston
PACKING (6) FROM ROD (2).
assembly (1).
CHECK ROD (2).
5.
a. Using micrometer caliper set, meas-
ure diameter of rod (2) in two places.
REMOVE THREE MACHINE THREAD
7.
b. Replace rod (2) if either measurement
PLUGS (7).
is less than 0.418 inch (10.62 mm).
a. Using 3/8-inch drive ratchet handle
c. Replace rod (2) if scored.
and 3/16-inch socket wrench attach-
ment, remove three plugs (7).
REPEAT STEPS 1 THROUGH 5 FOR
6.
b. Remove and discard three preformed
R E M A I N I N G THREE PISTON
packings (8).
ASSEMBLIES.
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4-263
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