TM 5-4310-368-14
6-34.
A33 OIL PRESSURE REGULATING VALVE (Figure 6-46)
a.
Loosen oil return pipe (3) from oil level screw (9).
b.
Unscrew threaded collar of oil pressure tube (1 ) from tube fitting (2).
c.
Unscrew oil level screw (9) from oil pressure regulating valve (7).
d.
Remove gasket (12), inspection glass (11), and two O-rings (10) from oil level screw (9).
e.
Unscrew two tube fittings (2) and (6) from oil pressure regulating valve (7).
f.
Unscrew oil pressure regulating valve (7) from cylinder.
g.
Unscrew acorn nut from oil pressure regulating valve (7) and remove nut and gasket. Loosen free stud a few
turns.
h.
Unscrew cap of oil pressure regulating valve (7) and remove gasket (8) along with discharge valve spring and
ball bearing guide with ball.
6-35.
A05 1ST STAGE CYLINDER (Figure 6-51)
a.
b.
Unscrew four hex-head nuts (4) from cylinder (3) and remove washers (5).
c.
Remove cylinder (3) with O-ring (6) from upper crankcase.
d.
Remove O-ring (6) from cylinder (3).
e.
Unscrew four studs (35) from upper crankcase.
6-36.
A09 2ND STAGE CYLINDER (Figure 6-51)
a.
b.
Unscrew four hex-head nuts (14) from cylinder (13) and remove washers (15).
c.
Remove cylinder (13) with O-ring (19) from upper crankcase.
d.
Remove O-ring (19) from cylinder (13).
e.
Unscrew four studs (35) from upper crankcase.
6-37.
A15 3RD STAGE CYLINDER (Figure 6-51)
a.
b.
Unscrew four hex nuts (17) from cylinder (16) and remove washers (18).
c.
Remove cylinder (16) with floating piston (20) and O-ring (19) from upper crankcase.
d.
Remove O-ring (19) from cylinder (16).
e.
Push floating piston (20) out of cylinder (16).
f.
Unscrew four studs (35) from upper crankcase.
6-49