TM 5-3810-295-34
Place gasket (58) on support (57).
b Refer to figure 13-8 and install air compressor as
(10) With sleeve or pipe against shoulder of drive
follows.
gear (51) press gear on crankshaft (60) until against
(1) Install bracket (26) with capscrews (22), lock
shoulder.
washers (23) and washers (24).
(11) Refer to paragraph 13-29 j above (water
(2) Install bushing (25) in bracket (26) and install
leakage check) and install cover (41) gasket (42), head
air compressor, engage compressor drive gear and
(43) and gasket (44) Secure with capscrews (38), lock
camshaft gear. Align timing marks on mating gears.
washers (39) and flat washers (40) as outlined.
Snug tighten capscrews (21), lock washers (23) and
(12) Lubricate valve assembly with high
washers (24).
detergent oil (Nos. 10 wt., 20 wt. or 30 wt.). Install wear
(3) Attach dial indicator gauge to gear housing
plate (49) and exhaust spring (50) in head (43).
and check gear backlash. Backlash must be 0.004 to
(13) Place exhaust valve (46) on exhaust seat (47);
0.012 inch. If readings are out of limits, gear or gear
install new preformed packings (48) and (45) on ex-
train must be replaced.
haust seat (47).
(4) Install gasket (20) and inlet elbow (18) with
(14) Lubricate preformed packing (45) and (48)
capscrews (14) and (15), lock washers (16) and
and install exhaust valve assembly in head. Seat as-
washers
sembly by applying pressure with thumbs.
(17). Install pipe plug (19) in elbow.
(15) Install new intake spring (37) with the
(5) Install hose (13) and clamp (12). Install con-
"turned-in end" against top of exhaust seat.
nectors (4) and (7) into compressor head.
CAUTION
(6) Install bushing (3), connector (4) elbow (5) and
Lapped surface of valve must be up.
water tubes (1) and (2). Secure tubes with clamp (11),
(16) Insert intake valve (36) on top of intake
capscrews (8), lock washers (9) and nuts (10).
spring (37). Insert new intake seat (35) on top of intake
c Refer to figure 13-7 and reassemble and install
valve (36)
the rear bearing support as follows.
(17) Install new unloader spring (34) and seal (33)
(1) Install mounting adapter (11) on compressor
in unloader cap (32).
shaft.
(18) Lubricate and assemble new preformed pack-
(2) Install pipe plug (10) and bushing (9) in bear-
ing (31) on valve body (30).
ing support (7). Coat sealing lips with clean lubricating
(19) Lubricate the OD only with thredgard and
oil.
slide unloader cap (32) into bore of unloader body (30).
(3) Place gasket (8) on support (7) and slide bear-
(20) Lubricate body (30) and preformed packing
ing support (7) over compressor drive shaft. Position
(31) and install cap (32) over spring (34) in cylinder
support to gear housing.
head. Thru legs of cap (32) must protrude into thru
(4) Install lock washers (6) and capscrews (5).
openings of intake seat (35).
Tighten capscrews (5) in sequence shown in figure
(21) Secure with fiat washers (29), lock washers
13-10 to 15--20 ft-lb (20-27 N. m). Repeat torquing
(28) and capscrews (27). Torque alternately to a final
sequence, tighten to 30-35 ft-lb (41-47 N.m)
torque of 8--10 ft-lb (11--14 N. m).
torque
13-21
