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 TM 9-2320-285-24-2
3-25.
AIR COMPRESSOR ASSEMBLY MAINTENANCE
b. Air Compressor Assembly (cont).
STEP
LOCATION
ITEM
ACTION
REMARKS
REASSEMBLY (cont)
10
j.
Rear end cover
Position
On rear end of crankcase
(cont)
(36),
(18); align with scribe
marks on crankcase made
before disassembly
k.
Four lock
Install
Tighten to 15-18 pounds foot
washers (35) torque
and screws
(34)
NOTE
Steps 11 and 12 below cover reassembly and installation of one piston, connecting rod, and associated hardware.
11
Piston (27)
a.
New bushing
a. Align
Align oil hole in bushing
(30)
(30) with oil hole in
connecting rod (26)
b. Press in
Until flush with connecting
rod
c. Ream
Or hone bushing (30) to
provide 0.0001 inch minimum
to 0.0006 inch maximum
clearance on wrist pin (29)
d. Lubricate
Use SAE 30 oil
b.
Connecting rod
Position
In piston (27)
(26)
c.
Wrist pin (29)
Install
Use hand pressure
d.
Two new wrist
Install
pin buttons
(28)
e.
Two piston
Install
Use ring expander. Install
rings (31),
rings with pipmarks up;
expander ring
stagger ring gaps around
(32), and oil
the piston
ring (33)
12
Crankshaft
a.
Crankshaft (49)
Rotate
So that journal will be at
(49)
its lowest point
3-222
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