ENCORE
®
700 METERING PUMP
and the discharge line shut-off valve.
e.
Remove the pump head. Flush away any spilled solution not caught
in the container with ample quantities of water.
f.
Immerse the pump head, valves, and lines that were removed in
lukewarm water for two minutes.
g.
Unscrew the threaded parts under water.
h.
Rinse all the parts in fresh water before reassembly.
i.
Use water to prime the pump, then transfer the suction line to the
sodium chlorite solution container.
Inspection
After the disassembled parts are cleaned and prior to reassembly perform
the following procedure:
a.
Check for physical damage of removed parts (chipped, cracked, dam-
aged threads, etc.). Replace damaged parts.
b.
Discard and replace all removed O-rings, seals, and gaskets.
c.
Check diaphragms for chafing or cracking. Replace damaged diaphragms.
Corrective Maintenance
WARNING: TO AVOID CONTACT WITH THE MATERIAL AND POSSIBLE
SEVERE PERSONAL INJURY WHEN SERVICING HEADS AND/OR VALVES,
FOLLOW THE PROCEDURES IN THIS SECTION FOR DISASSEMBLY.
WARNING: USE EXTREME CARE TO AVOID CONTACT WITH THE MA-
TERIAL AND POSSIBLE SEVERE PERSONAL INJURY. WHEN HANDLING
HAZARDOUS MATERIAL, OBSERVE ALL SAFETY PRECAUTIONS RECOM-
MENDED BY THE MATERIAL MANUFACTURER/SUPPLIER.
CAUTION: To prevent possible equipment damage, the solution must
never be allowed to freeze in the pump. If freezing conditions are
present when pump is shut off, drain pump head and all solution
lines.
Corrective maintenance is performed as required to correct a discrep-
ant operating or non-operating condition. A troubleshooting table is
provided to guide service personnel in diagnosing and correcting most
common troubles.
Routine maintenance procedures include the elimination of solution
WT.440.400.001.UA.IM.1012
37
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