18
Pump Disassembly
All moving parts are located in the rear sub-assembly of this pump.
Tools required:
3/8 inch socket or open end wrench.
Phillips screwdriver.
Flat blade screwdriver.
To remove and repair the motor subassembly, follow the steps below:
1. Press the
Start/Stop
button to stop the pump and turn off the pump circuit breaker at the main panel.
2. Drain the pump by removing the drain plugs.
3. Remove the 4 bolts that hold the main pump body (strainer pot/volute) to the rear sub-assembly.
4. GENTLY pull the two pump halves apart, removing the rear sub-assembly.
5. To unscrew the impeller from the shaft, insert a Phillips screwdriver into the hole of the motor fan and twist the
impeller counter-clockwise. See
Figure 10
.
6. Place the seal plate face down on a flat surface and tap out the ceramic seal.
7. Remove the graphite seal ring on the impeller shaft.
8. Clean the seal plate, seal housing, and the impeller shaft.
DO NOT run the pump dry.
If the pump is run dry, the mechanical seal will be damaged and the pump will start leaking.
If this occurs, the damaged seal must be replaced. ALWAYS maintain proper water level. If the water level falls below
the suction port, the pump will draw air through the suction port, losing the prime and causing the pump to run dry,
resulting in a damaged seal. Continued operation in this manner could cause a loss of pressure, resulting in damage to
the pump case, impeller and seal and may cause property damage and seal and may cause property damage and
personal injury.
Pump Reassembly
1. When installing the replacement seal into the seal plate, use soapy water to wet the rubber boot before pressing it
into the seal plate.
