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Operation
The pump has moving parts when in operation. Follow local safety standards for locking out the motor
during assembly or disassembly.
The pump may be used for transferring various chemicals. Always wear appropriate person protective
equipment (including protective eye care, gloves, clothing, etc.) and follow safety procedures during
operation of pump. Procedures should be in place for draining and decontamination of pump before
disassembling or inspecting the pump.
Do not operate with a closed suction or discharge valve. Do not start with a closed suction valve.
The wet end and/or motor may become hot during operation.
Always check with a March Manufacturing representative before pumping any liquid with solids.
Maintenance
March Manufacturing has not established a general preventive maintenance schedule for its line of
pumps, as each application presents its own specific conditions. The pump should be checked upon
installation, first use, and monitored for one week. If any abnormality is detected concerning vibration,
noise, electric current, flow or head rate, turn off the pump immediately and inspect individual parts.
The pump should be periodically inspected for wear on the impeller bushing. The frequency of the
inspection should be determined by the customer.
Follow motor lubricating oil instructions as found on motor label. (Not every motor requires lubrication)
Bolts may loosen after extended running. Tighten bolts if loose.
Remove excessive dust or particles from motor.
Do not clean exterior of pump or motor with any flammable solvents.
Assembly/Disassembly
Magnets
Magnets on specific models may be strong enough to pull the wet end and motor end quickly together
during assembly or disassembly.
WARNING: Do not put fingers between the two mating surfaces (between impeller magnet and/or
impeller vanes and the rear pump housing) during assembly or disassembly, especially for the 7.5, 8,
and 10 Series. Magnets may attract tools, use caution.
Assembly
Contact March Manufacturing for proper assembly procedure concerning drive magnet and motor
bracket.
Exercise caution in removing impellers on all models but especially on the 7.5, 8, and 10 Series due to
the strong magnetic forces between the impeller magnet and drive magnet. When handling impeller
hold onto the outer diameter of the impeller vanes with both hands and gently engage the impeller into
