TM 5-4310-369-14
(d) Lift-off head and head gasket.
b. Cleaning and Inspection.
(4) Mark the top of each piston (with cylinder
number and position within cylinder) so that each piston
can be reinstalled in the right cylinder and in the same
Drycleaning solvent, P-D-680, used to clean parts
position within the cylinder.
is potentially dangerous to personnel and property.
(5) Remove hand hole plate (bottom of crank-
Avoid repeated and prolonged skin contact. Do
case) (38).
not use near open flame or excessive heat. Flash
(a) Remove bolts (39).
point of solvent is 100F (38C).
(b) Remove plate (38).
(1) Clean all parts with cleaning solvent, item 5,
(c) Remove gasket (40).
App. D, and dry thoroughly.
(6) Remove pistons.
(2) Inspect all parts for cracks, breaks, and other
NOTE
damage. Replace a defective part.
(3) Discard and replace cylinder head gasket.
Each connecting rod and associated rod end-cap
c. Installation. (Figure 5-5).
must be kept together and in the same relation-
(1) Install new cylinder head gasket (17).
ship as when removed. (See figure 5-9).
(2) Install cylinder head (15).
(3) Install cylinder head bolts (16).
(6) Install interstage safety valve (59).
sure head.
(8) Attach intercooler tube (7).
Crankshaft and Crankcase
a. Disassembly (figure 5-5).
NOTE
Scribe reference marks on cylinder head/cylinders
and on cylinders/block.
(a) Turn crankshaft to expose rod end-caps at
bottom of crankcase.
(b) Remove high pressure cylinder rod end-cap
4-12a), place on suitable workbench and drain oil. Remove
first by removing bolts (42).
nipple (3) from compressor.
(c) Remove bolts (29) from cylinder and remove
cylinder piston assembly from crankcase.
NOTE
(d) Pull piston from cylinder.
Keep parts together as an assembly.
NOTE
(3) Remove high pressure head:
Immediately replace rod end-cap on connecting
(a) Disconnect intercooler tube.
rod using assembly marks (figure 5-9).
(b) Disconnect compressor discharge hose from
high pressure head.
compressor by repeating steps (a) and (b).
(c) Remove head bolts.
