RIX Industries MAN-2PS2B-N2 - Compressor Parts List

RIX Industries MAN-2PS2B-N2 Page 14
3. Install nuts in a cross pattern. Torque to 180 in-lbs.
4. Verify that head is on square.
5. Reconnect all plumbing to head.
7.4 Compressor Valves
A leaking valve, either suction or discharge, will usually be indicated by a loss in flow along with
low discharge pressure. This valve leakage is usually caused by wear, breakage, warping of the
reeds, or fouling due to particulates which prevent the valve from fully closing. Severe leakage will
cause over-heating of the suction pipe just prior to the cylinder head.
When valves are removed, they should be inspected for damage and/or wear. Inspect the reeds for
wear, cracking, or warping. Examine valve seat for wear or damage. A uniform imprint of the reed
indicates the valve is sealing normally, while radial lines or streaks extending outward indicate
leakage. Clean or replace parts as required. Valve seats may be reconditioned on a lapping plate
using a fine lapping compound or 600 grit sandpaper, moving in a figure 8 motion over the
sandpaper until it has a mirror finish.
To remove and disassemble both the 1
st
and 2
nd
stage compressor valves follow the instructions
below:
1. Remove the head per Section 7.3 and move to a flat, clean surface.
2. Separate all components and discard the used O-rings. Note: a soft punch may be used to aid
with disassembly by removing the plug at the top of head and pushing through the now
open port.
To reinstall the 1
st
stage compressor valve, reference Figure 3 and follow the instructions below:
1. Install the discharge reed and O-ring in the 1
st
stage head valve pocket.
2. Install the valve seat into the 1
st
stage head valve pocket, pushing down squarely to engage
the O-ring properly.
3. Install the suction reed and final O-ring in the 1
st
stage head valve pocket.
4. Install the head per Section 7.3.
To reinstall the 2
nd
stage compressor valve, reference Figure 4 and follow the instructions below:
1. Install the valve spacer and locating pin in the 2
nd
stage head valve pocket.
2. Install the discharge reed into the 1
st
stage head valve pocket, aligned with the pin. Ensure
the free end of the reed flap will sit over the 4 round, through holes on the valve seat.
Installing the reed upside down will result in improper valve operation.
3. Install O-ring in the 2
nd
stage head valve pocket.