RIX Industries 2PS-H-N2, Operating Instructions Manual

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RIX Industries MAN-2PS2B-N2 Page 15
4. Install the valve seat into the 2
nd
stage head valve pocket, aligned with the pin and pushing
down squarely to engage the O-ring properly.
5. Install pin and O-ring in the installed valve seat.
6. Install the suction reed, aligned with the pin. Ensure the free end of the reed flap will sit
over the 4 round blind holes on the valve seat. Installing the reed upside down will result in
improper valve operation.
7. Install valve stop and final O-ring in the 2
nd
stage valve pocket.
8. Install the head per
Section 7.3.
7.5 Compression Cylinders
The compression cylinders must be removed to service the rings and pistons. The 2
nd
stage has a
removable liner. There is no scheduled maintenance required on the cylinder or liner.
Remove the 1
st
and 2
nd
stage compression cylinders referencing
Figure 2
and using the following
procedure:
1. Remove the head per
Section 7.3
2. Rotate the flywheel to position the 1
st
stage piston at bottom dead center.
3. Slide 1
st
stage cylinder off piston, using caution to prevent side loading the piston/rod
assembly and damage to the shims. It may be necessary to either lean back or elevate the
compressor to complete this task.
4. Remove 2
nd
stage guide cylinder and liner.
5. Clean and inspect the cylinder bore for wear or damage (see
Section 5.8
). Wear must be
within the tolerance specified in
Section 7.10
.
Reinstall the compression cylinder and liner in the reverse sequence of removal.
7.6 Compression Rings
To replace the compression rings, reference
Figure 2
and follow the instructions below:
1. Remove the heads and cylinders per
Sections 7.3
and
7.5
. The 2
nd
stage piston will be lifted
out with the 2
nd
stage liner; remove the piston from the liner with a soft punch.
2. Remove and discard the used compression rings, expanders, and rider rings. An O-ring pick
(P/N 88-5812) is helpful for removing used rings.
To reinstall the piston, follow the instructions below: