Storage • Maintenance; Pump Reassembly/Installing New Seal - Flotec AT251001 Manual Del Usuario

Storage • Maintenance
Startup For Winterized Equipment
1. Remove any temporary weather protection placed
around system for shutdown.
2. Follow filter manufacturer's instructions for
reactivation of the filter.
3. Inspect all electrical wiring for damage or
deterioration over the shutdown period. Have a
qualified serviceman repair wiring as needed.
4. Inspect and tighten all watertight connections.
5. Open all valves in suction and return piping.
6. Remove any winterizing plugs in piping system.
7. Drain all antifreeze from system.
8. Close all drain valves and replace all drain plugs in piping system.
9. Prime pump according to instructions in
Priming Pump.
Maintenance
Pump should only be serviced by qualified personnel.
For best results, use only genuine factory parts.
Be sure to prime pump before starting.
Risk of explosion . Before beginning
pump service:
1. Stop pump before proceeding.
2. Close gate valves in suction and discharge pipes.
3. Release all pressure from pump and piping system.
Risk of electric shock . Can shock, burn
or kill. Disconnect power before working on pump
or motor.
When using factory authorized parts, no lubrication or
regular maintenance is needed beyond reasonable care
and periodic cleaning of the strainer basket.
If shaft seal is worn or damaged, repair as follows:
Pump Dissasembly/Removing Old Seal
Before disassembly, disconnect power to pump motor. Be
sure gate valves on suction and return piping are closed.
Release all pressure by opening all vents.
1. Drain pump by removing drain plugs on bottom of
pump body and trap body.
2. Be sure there is no pressure in trap body; remove
cover (unscrew by turning counterclockwise).
3. Remove 6 nuts, lockwashers and flat washers holding
seal plate to pump body (see Repair Parts). Pull seal
plate and motor away from pump body. You may
have to CAREFULLY use a screwdriver to separate
body from seal plate.
4. Remove seven screws and washers holding diffuser
to seal plate. Remove diffuser.
Hazardous voltage . Capacitor voltage
may be hazardous. To discharge motor capacitor, hold
insulated handle screwdriver BY THE HANDLE and
For parts or assistance, call Flotec Customer Service at 1-800-365-6832.
short capacitor terminals together. Do not touch metal
screwdriver blade or capacitor terminals. If in doubt,
consult a qualified electrician.
5. Remove motor canopy. Being careful not to touch
capacitor terminals, loosen capacitor clamp and
move capacitor to one side.
6. Hold shaft with 7/16" open-end wrench on motor
shaft flats.
7. Unscrew impeller from shaft (turn counterclockwise
when facing it).
8. Remove four screws holding seal plate to motor.
9. Place seal plate face down on flat surface and tap
out ceramic seat (Figure 5).
Mechanical seal
ceramic seat
Figure 5
10. Remove slinger from motor shaft and inspect for
damage or abrasion.
11. Clean seal cavity in seal plate and clean motor shaft.

Pump Reassembly/Installing New Seal

1. Ceramic seat must be clean and free of dirt, grease,
dust, etc. Wet outer edge with small amount of liquid
detergent; press ceramic seat into seal plate cavity
firmly and squarely with finger pressure (Figure 6).
Polished
surface
Figure 6
10
Rubber
surface