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VIII. Maintenance
The MicroTron™ pump is designed for long service life with minimum maintenance. If for any
reason, maintenance is necessary or desireable, the pump is easily maintained. Before any
maintenance or service is performed, observe the following precautions:
1. Disconnect the MicroTron™ pump from power source.
2. Drain chemical from all tubing.
3. Disconnect discharge tubing from pump.
4. Observe relevant safety protocols when handling parts which have been in contact with
hazardous
chemicals.
A. Diaphragm Replacement
1. Remove fluid end cover by lightly prying it loose from the fluid end.
2. Remove the four screws attaching the fluid end to pump body.
3. Remove the fluid end from the pump body.
4. Unscrew the diaphragm from the pump shaft in a counter-clockwise direction.
5. Do not allow sharp or abrasive objects to come in contact with pump parts.
6. Inspect end of shaft to assure that threads are in good condition.
7. Screw new diaphragm onto pump shaft until it bottoms out on shoulder of shaft. Then back off
1/2 turn. It is not necessary to tighten further.
8. Replace fluid end. Make sure that screws are evenly tightened.
9. Replace fluid end cover.
10. Reconnect plumbing and power. Prime the pump.
B. Suction and Discharge Check Valve Replacement
1. Disconnect suction tubing from pump.
2. Unscrew fitting from pump head.
3. Remove check valve from suction fitting and replace.
4. Remove O-ring from cavity in fluid end.
5. Remove check valve from suction side of pump and replace.
6 Install new O-ring in suction cavity of fluid end.
7. Replace suction fitting with check valve in fluid end.
8. Replace fluid end. Make sure that screws are evenly tightened.
9. Reconnect plumbing and power. Prime the pump.
NOTES: 1. Tighten pump head screws after pump’s initial week of operation.
2. When installing check valves, remember that the seats are always installed
at
the
bottom.
C. Cleaning Conductivity Probe
1. Record the current conductivity reading.
2. Turn off water flow through the electrode, bleed pressure from the line and remove electrode.
3. Use a clean cloth and a mild cleaning solution to remove loose dirt etc., from the flat
surface of the electrode.
4. If the electrode has deposits such as scale attached to the electrode surface a more
aggressive cleaning approach will be needed. There are several ways to do this, the
preferred method being the one that is easiest for the user.
a. Use a mild acid solution to dissolve deposits.