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 TM 55-1905-220-14-9
4-73. PORTABLE AIR COMPRESSOR - MAINTENANCE INSTRUCTIONS (Continued).
LOCATION
ITEM
ACTION
REMARKS
REPLACE (Cont)
m. Piston as-
Remove.
sembly (27)
n. Retaining
Disassemble.
rings (28),
piston pin
(29), piston
(30), and
connecting
rod (31)
o. Piston (30),
1. Disassemble.
Remember how
compression
the compression
rings (32,
rings were
33), and oil
located, and
ring (34)
where the break
is located.
2. Clean grooves.
3. Reassemble.
4. Reinstall.
p. Connecting
Reassemble.
rod (31),
piston (30),
piston pin
(29), and
retaining
rings (28)
q. Crankshaft
1. Disassemble
Replace with
(35), bear-
new oil seal,
ing sleeve
and bearings.
(36), oil
seal (37),
2. Reassemble.
and bearings
(38)
r. Piston as-
Install in cylinder
Coat lightly
sembly (27)
(23).
with oil before
assembly.
4-1494
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