MAN-2V3B-4.1V REV (B)
17
7.4.2
2ND STAGE VALVE ASSEMBLY (XA15-A7799)
VALVE
REMOVAL
a.
Remove the inlet and discharge lines on the first and second stage heads. The 3rd stage
cylinder assembly may remain attached to the 2nd stage head if desired. Remove the
four nuts on the second stage head.
b.
Lift off head with third stage assembly intact (3rd stage piston will remain in cylinder).
c.
Remove the valve seat from the cylinder head. Remove o-rings, suction reed valve and
discharge reed valves. Discard all o-rings. Care must be taken not to damage valve seat.
d
Inspect and repair or replace parts as necessary. All o-rings must be replaced.
VALVE
INSTALLATION
a.
Attach the two discharge reeds on the discharge (upper) side of valve seat and the suction
reed on the suction (lower) side of seat and tighten securely. Inspect to see that the
valves rest flush against the seat.
b.
Install O-ring on top of cylinder.
c.
Place valve assembly on cylinder, making sure that the valve seat is positioned so that the
spring pin enters the hole in the valve seat.
d.
Install head on valve assembly with 1.025" diameter counterbore for discharge port
towards the flywheel side of pump.
e.
Bolt down assembly with nuts and flat washers and torque to 30 ft-lbs.
Summary of Contents for RIX 2V3B-4.1V Series
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