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MPF50S SERIES PORTABLE FILTRATION SYSTEMS
CHAPTER 6: TROUBLESHOOTING/SERVICE PROCEDURES
6-9
6.4.3.2 Replace Pump
1. Disconnect power cord from power supply.
2. Perform Steps 2 and 3, Section 6.4.3.1,
Replace Motor.
3. Remove foil insulation tape and heater strip
from pump and flex lines. Remove the heater
strip from the pump and disconnect flexlines
from the check valve connections.
4. Remove pipefittings from pump before
removing pump from motor.
5. Remove four bolts securing the pump to the
motor. Remove the pump and pump gasket.
Fit new pump gasket and install new pump on
motor. Torque pump bolts to 15-foot pounds.
Do not over-tighten the bolts.
6. Reinstall all removed components during
pump removal by reversing the above steps.
Remove foil insulation tape covering the heater
strip and remove heater strip from the pump and
flexlines.
Remove four bolts securing the pump to the
motor. Remove pump and gasket from motor.