TM 55-1905-223-24-8
REPLACEMENT
CAUTION
Ensure that intake valves open toward the cylinder
and discharge valves away.
a.
Install suction (intake) valves (11, 19) as follows:
(1) Install ring spacers (8, 35) inside compressor head (46).
(2) Assemble all three valve seat assemblies as follows:
(a) Seat helical compression spring (44) in reed valve plate (45). Place on top of ring spacer (35).
(b) Screw plain stud (42) clockwise into reed valve plate (45). Place thrust washer bearing (43) on top
of reed valve plate (45).
(c) Screw valve seat (34) clockwise onto top half of plain stud (42).
(d)
Place suction valve assembly (19) on top of ring spacer (35).
(e) Install helical compression spring (9) and straight head pin (10). Install valve spacer (16).
(f)
Install helical compression spring (9) and straight head pin (10) into valve bumper (7).
(g) Install unloader platforms (6) and pins (5).
(h) Install valve retainers (4).
(i)
Place valve assemblies (11) on top of ring spacers (8).
b.
Install discharge (compressor) valve assemblies as follows:
(1) Install valve assembly (26):
(a) Install ring spacer (32) inside compressor head (46).
(b) Assemble valve bumper assembly (28) as follows:
(1) Install compression spring (9) and straight head pin (10).
(2) Seat helical compression spring (29) in valve seat (31). Place on top of ring spacer (32).
(3) Place thrust washer bearing (30) on top of valve seat (31).
(4) Install shoulder bolt (27) through valve bumper (28). Screw valve seat (31) clockwise onto threads
of shoulder bolt (27).
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