Maintenance
Algas-SDI Operation and Maintenance Manual – P/N – 54000
4-24
Capacity control valve maintenance procedure
Use Repair Kit p/n:
40764 (see
Appendix A
for kit details)
1. Using a 7/16” end wrench or tubing wrench, loosen and remove the capacity control valve sensing line
fitting on the top of the capacity control valve and carefully slide tube out of the way in order to remove
the large flange nut (capacity control valve cap). Note: you may need to loosen the tube on the other
end at the top of the inlet valve to remove the tube completely.
2. With a 1-1/2” box end wrench (suggest using 6 point), loosen the large flange nut on the top of the
capacity control valve (capacity control valve cap).
3. Remove the piston from the valve and wipe the piston with a rag/cloth (one that does not leave lint on
surface) or lightly with a scotch-brite type material to remove any debris and/or oils from the piston
surface. If the piston is stuck in the valve or difficult to remove, thread an 8-32 bolt or screw into the screw
tap at the top center of the piston. This will allow you to have leverage and grasp the screw with a pair of
pliers to remove the piston from the valve.
4. Remove the old O-ring from the piston and replace it with the smallest O-ring from the kit. Lightly grease
new O-ring before installing it on the piston.
5. Remove spring from the capacity control valve.
6. Thoroughly wipe the inside of the valve body with a rag/cloth (again, one that does not leave lint on
surface) to remove any debris or oils from the valve body.
7. Insert new spring into the Capacity Control Valve.
8. Lightly spray the surface of the capacity control valve piston with a dry lubricant (graphite) and insert
piston into the valve moving it up and down thereby lubricating the body of the valve and ensuring the
piston is moving up and down freely.
9. Lightly grease and replace the O-ring around the capacity control valve cap (large flange nut).
10. Install the capacity control valve cap (large flange nut) and tighten into valve body. You may apply
NEVER-SEEZ compound to the flange nut to allow for easy removal of the flange nut in the future.
11. Re-install capacity control valve sensing line and tighten fittings.
12. Leak test prior to restarting the vaporizer.
Summary of Contents for 160H
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Page 42: ...Algas SDI Operation and Maintenance Manual P N 54000 5 32 APPENDIX A TECHNICAL INFORMATION...
Page 43: ...Figure 11 160H Vaporizer Replacement Parts 3 11 13 5 6 1 2 7 4 14 10 12 8 9...
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