Xylem C3V CHEMICAL METERING PUMPS - Manual (Page 24)

Page 25
C3
Page 24
C3
PUMP HEAD AND VALVE EXPLODED VIEW
9.0 How to Maintain the Pump
9.1 Routine Inspection and Maintenance
The pump requires very little maintenance. However, the pump and all accesso-
ries should be checked regularly. This is especially important when pumping
chemicals. Inspect all components for signs of leaking, swelling, cracking,
discoloration or corrosion. Replace worn or damaged components immediately.
Cracking, crazing, discoloration and the like during the first week of operation
are signs of severe chemical attack. If this occurs, immediately remove the
chemical from the pump. Determine which parts are being attacked and replace
them with parts that have been manufactured using more suitable materials. The
manufacturer does not assume responsibility for damage to the pump that has
been caused by chemical attack.
9.2 How to Clean the Pump
The pump will require occasional cleaning, especially the Injection fitting, the
Footvalve / Strainer, and the pump head valves. The frequency will depend on
the type and severity of service.
]Inspect and replace the pumphead valves as required.
]When changing the diaphragm, the pump head chamber and pump head
cover should be wiped free of any dirt and debris.
]Periodically clean the injection / check valve assembly, especially when
injecting fluids that calcify such as sodium hypochlorite. These lime deposits and
other build ups can clog the fitting, increase the back pressure and interfere with
the check valve operation.
]Periodically clean the suction strainer.
]Periodically inspect the air vents located under the motor housing and in the
back on the rear housing cover. Clean if necessary.
CAUTION: Proper eye and skin protection must be worn when
installing and servicing the pump.