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VIII. Maintenance
The Advantage MicroTron™ pump is designed for long service life with minimum maintenance.
If for any reason, maintenance is necessary or desireable, the MicroTron™ 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 discharge tubing.
3. Disconnect discharge tubing from pump.
4. If the MicroTron™ pump is used in a flooded suction application, remove foot valve
from chemical container.
5. 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.
Be careful that diaphragm support ring does not fall out.
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. Replace shaft bellows
if necessary. No further disassembly is recommended.
7. Screw new diaphragm onto pump shaft until it bottoms out on shoulder of shaft.
It is not necessary to tighten further.
8. Replace fluid end. Make sure that screws are evenly tightened.
9. 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 pump and replace.
6 Install new O-ring in cavity of fluid end.
7. Replace valve 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.
