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 TM 55-1905-219-14-11
5-140. COMPRESSOR - HVAC - MAINTENANCE INSTRUCTIONS (Continued)
LOCATION
ITEM
ACTION
REMARKS
OVERHAUL - (Cont)
g. Crank-
1. Rotate so that
shaft and
piston is at top
piston
center.
2. Oil piston rings.
h. Cylinder
Oil beveled surface at
sleeve
lower edge.
(40)
i. Unloader
With a turning motion,
sleeve
work sleeves over
(41),
piston and rings.
valve
lifter
pins
(42),
and
cylinder
sleeve
(40)
j. Cylinder
Rotate so that any two
Valve lifter
sleeve
valve lifter pins (42)
pins (42) should
(40)
are an equal distance
line up with
from the longitudinal
suction valve
axis of the compressor.
springs and
prevent undue
stress on valve
disc.
k. Valve
1. Make sure they
lifter
operate freely.
pins
(42)
2. Check unloader
operation using the
externally mounted
capacity control
valve.
5-1428
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