TM 5-4310-227-15
(5) Lubricate the engine in accordanc
(3) Install the magneto assembly (para
with the lubrication order and install
the oil filler plug (para 3-65).
(4) Install the governor control assembly
Section XI. COMPRESSOR ASSEMBLY REPAIR INSTRUCTIONS
4-37. General
The compressor assembly is an air-cooled, 2-
stage, 2-cylinder, reciprocating piston, rotary
compressor. There is one low and one high-
pressure piston operating off the crankshaft.
The crankshaft is supported at both ends by
tapered roller bearings.
Rods
a. Removal and Disassembly.
(1) Remove the compressor assembly
(2) Remove the access cover plate (para
(3) Remove the intake and exhaust valves
(4) Revolve the crankshaft (2, fig. 4-13)
1 Crankcase
until the connecting rod screws (4)
2 Crankshaft
3 Low-pressure connecting rod
are accessible through the side of
4 Screw, cap, hex-hd, 3/8-24 X 2 1/8 in. (4 rqr)
the crankcase (1).
5 Connecting rod cap (2 rqr)
(5) Remove the two screws (4), lockwash-
6 Washer, lock, 3/8 in. (4 rqr)
ers (6), and nuts (7) that secure the
7 Nut, hex, 3/8-24 (4, rqr)
connecting rod cap (5) to the low-
pressure connecting rod (3) and re-
removal points.
move the connecting rod cap and two
shims (17, fig. 4-14).
(8) Remove the six nuts (11, fig. 3-29)
Note. Match mark the connecting rod, cap,
that secure the cylinder (9) to the
and shims to insure reassembly on the same
crankcase (21) and remove the assem-
connecting rod.
bled cylinder, pistons (7 and 24, fig.
(6) Remove the low-pressure oil deflector
from
connecting rod
(22)
the
inder gasket from the crankcase and
cap (18).
discard the cylinder gasket.
(7) Remove the two screws (11), lock-
(9) Place the cylinder on its side and pull
washers (19), and nuts (20) that se-
each piston (7 and 24) out of the cyl-
cure the connecting rod cap (18) to
inder by means of the connecting rod.
the high - pressure connecting rod
(10) Remove the two retaining rings (1)
(10). Remove the connecting rod cap,
that secure the low-pressure piston
shims (17), and high-pressure oil
pin (2) in the low-pressure piston
deflector (21).
