TM 55-1905-223-24-8
2-16.
Replace Valve Assembly.
This task covers:
a. Removal,
b. Replacement.
INITIAL SETUP
Tools
Equipment Condition
Tool kit, general mechanic's,
Unloader body removed (para. 2-15).
Tubing disconnected (para. 2-15).
Torque wrench kit
P/N 3377216
Materials/Parts
Valve assembly-suction P/N 7277X
Spacer ring P/N 1848
Valve assembly-discharge P/N 7271X
Gaskets P/N 1852, 6682
REMOVAL
a.
Remove unloader body assemblies and tubing (paragraph 2-15).
b.
Extract unloader pistons (10, FIGURE 2-7) from valve covers (3, 4). Remove self-lock screws (11).
c.
Remove sleeve nuts (22, 23, FIGURE 2-8) and setscrews (21) for cover plate(37).
d.
Remove sleeve nut (13) and setscrew (21) from cover plate (12).
e.
Remove sleeve nut (39) and setscrew (21) from cover plate (40).
f.
Remove cover plates and gaskets as follows:
(1) Remove four capscrews (2) and remove valve cover (1) and gasket (3).
Discard gasket.
(2) Remove four capscrews (14) and remove valve cover (12) and gasket (15).
Discard gasket.
(3) Remove six capscrews (20) and remove valve cover (37) and gasket (24).
Discard gasket.
(4) Remove six capscrews (38) and remove valve cover (40) and gasket (41).
Discard gasket.
Change 1 2-27
