TM 5-4310-375-14
(4) Assemble baffle (15) into frame vent (12) and attach with screw (14). Install gasket (13), frame vent (12), and
two socket head screws (11).
CAUTION
When oil seal (7) is pressed into front end plate (5), the sealing lip of seal
must face the bearing (8). When pressing bearing (8) into end plate (5), press
on outer race of bearing only to prevent bearing damage.
(5) Carefully and evenly, press oil seal (7) into front end plate (5) until it bottoms on bore shoulder. Dip front
main bearing (8) in clean compressor oil and press into end plate (5) until bearing (8) bottoms on shoulder in
end plate.
(6) Assemble crankshaft (9) through front end plate opening, guiding carefully so that bearing journals are not
damaged. Insert short stub main bearing journal into bore of rear main bearing (10).
(7) Assemble a new gasket (6) and the front end plate (5). Guide the end plate (5) carefully over the crankshaft,
using a turning motion so that oil seal (7) is not damaged and so front main bearing (8) aligns on crankshaft
bearing journal.
(8) Secure front end plate (5) to compressor frame (27) with four screws (4). Tighten the screws (4) alternately
and evenly to seat bearing (8) on crankshaft (9) journal.
(9) Install flywheel (3), flat washer (2) and flywheel bolt (1) as instructed in para 4-21.
(lo) Install gasket (26), drain assembly (25), drain cock (24) and drain hose (23).
(11) Refer to para 5-9 and assemble cylinder, pistons, and connecting rods. Refer to para 4-19 and 4-20 and assemble
cylinder head and valves and the intercooler and aftercooler. Refer to para 4-18 and install air compressor assem-
bly on unit. Refer to para 4-14 and install belt guard. Refer to para 3-11 and install air inlet filter. Fill compres-
sor with proper grade of oil, refer to table 3-1.
5-11. Air receiver tank. Replacement of air receiver tank is as follows:
a.
Disassembly.
(1) Refer to para 4-14 and remove belt guard and drive belts. It is not necessary to remove drive pulley from motor
assembly.
(2) Refer to para 4-15 and remove motor control box assembly from air receiver tank saddle.
(3) Refer to para 4-16 and remove the motor assembly from air receiver tank saddle.
(4) Refer to para 5-6 and remove pressure switch.
(5) Refer to para 4-30 and remove air discharge piping from air compressor and receiver tank.
(6) Refer to para 4-18 and remove air compressor assembly from receiver tank saddle.
(7) Refer to para 4-22 and remove safety valve; para 4-23 and remove check valve and para 4-24 and remove
pressure gauge.
(8) Refer to para 4-29 and remove globe valve and fittings from air receiver tank.
5-18
