Compressor Repair.

TM 5-4110-217-14

(2) Inspect cylinder heads and valve plates

CAUTION

for cracks and dents. Replace if defective.

Take care not to use force.

(3) Inspect suction and discharge valves for

(4) Align mounting holes of end plate (41)

dents and cracks. Replace if defective. Check suction

with new gasket (49) attached to compressor. Secure

strainer for foreign matter; clean if needed.

with seventeen screws and washers (42).

(4) Remove pump plate and end plate from

(5) Place oil pump assembly (44) on end

compressor; Inspect oil pump for broken vanes or

plate (41).

excessive wear and end plate bearing for wear. If either

(6) Mount and secure oil pump plate and new

are damaged, the whole end plate should be replaced.

gasket (43) to end plate (41) with eight screws and

(5} Remove pulley and seal assembly from

washers (48). Screw oil plug (46) to oil pump plate (52).

crankshaft. Inspect seal assembly for excess wear. If

(7) Place valve plates (5) with new gaskets

any of its components are damaged, replace entire

(6) attached, and cylinder heads (3, 40) with new gaskets

assembly.

(4) attached to compressor body. Secure with sixteen

(6) Remove crankshaft and inspect for wear

screws (1).

at the eccentric and in the seal assembly area. Replace

(8) Insert seal assembly (25), seal plate (24)

if defective.

with new gasket (26) attached over crankshaft (29) and

(7) Inspect

connecting

rods

and

secure with screws (23).

piston assemblies for damage and replace if

(9) Align pulley (17) to shaft with key (18) and

defective.

secure with stop plate (19), washer (20) and screws (21

(8) After all components have been removed

and 22).

from the compressor body, the crankcase and cylinder

(10) Place suction valve (11) with new gaskets

walls can be inspected for wear. If wear has occurred,

(7, 10) on compressor body; mount with hardware (12).

replace crankcase.

(11) Place discharge valve (16) with two new

e. Reassembly (fig. 6-1)

gaskets (14) on compressor body; mount with hardware

(1) Replace any defective components before

(13).

re-assembly. Always install new gaskets. Coat all parts

f. Installation.

with a light film of clean compressor oil prior to assembly.

NOTE

(2) Insert the pistons (35) and connecting rods

Check compressor sight glass, oil level

(32) into the pump end of the compressor,

should be at the center of glass; if not

gently working them up into the cylinders.

fill to center prior to installation

(3)

(1) Place assembled compressor (fig. 6-1) on

NOTE

engine and compressor mounting plate (fig. 3-6).

Take care not to break the piston rings

Secure with four screws and washers (2, and 3, fig. 6-2).

(2) Place compressor drive belts and fan belt

(3) Simultaneously push and rotate the

(fig. 3-6) on compressor pulley (17, fig. 6-1). Adjust

crankshaft (29) and thrust washer (28) attached, thru

tension on belts.

each connecting rod (32) until each crankshaft eccentric

aligns with its respective connecting rod.

Change 3 6-6