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Section IV - Maintenance
Recommended maintenance schedule
The recommended maintenance schedule depends upon the nature of the fluid being pumped and the specific application. If the pump
is used on a clean fluid, it is recommended that the pump be removed from service and examined after six months of operation or after
2,000 hours of operation. If the pump is used on fluids with solids, high temperatures or other items that could cause accelerated wear,
then this initial examination should be sooner.
After the initial examination of the internal components and wear items are measured, a specific maintenance schedule can be
determined. For best results, it is recommended that the pump be removed from service annually for examination.
Section V - Disassembly
WARNING: Rotating Parts. This pump has components that rotate while in operation. Follow local safety standards for locking out
the motor from the power supply during maintenance or service.
WARNING: Chemical Hazard. This pump is used for transferring many types of potentially dangerous chemicals. Always wear
protective clothing, eye protection and follow standard safety procedures when handling corrosive or personally harmful materials.
Proper procedures should be followed for draining and decontaminating the pump before disassembly and inspection of the pump.
There may be small quantities of chemicals present during inspection.
WARNING: Magnetic force hazard. This pump should only be disassembled and assembled using the recommended procedures.
The magnetic attraction is powerful enough to rapidly pull the motor end and the wet end together. Do not place fingers between the
mating surfaces of the motor and wet ends to avoid injuries. Keep the drive magnet and impeller assembly away from metal chips or
particles.
Stop the pump, lock out the motor starter, close all the valves that are connected to the pump, and drain/decontaminate the pump.
WARNING: The pump must be thoroughly flushed of any hazardous materials and all internal pressure relieved prior to opening the
pump. Allow the pump to reach ambient temperatures prior to performing maintenance.
1.
For pumps with motors 2 horsepower (1.5 kW) or smaller, securely clamp the pump feet to the
bench. Remove the (4) bolts, lock washers and flat washers (items 35, 36,37) securing the pump to
the motor. See figure 10.
2. Firmly grab the motor and pull straight back to disengage the motor and pump. See figure 11.
13
Figure 10
Figure 11
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