Reassembly
1.
Clean all parts thoroughly with dish soap and water before assembling. IMPORTANT: Do not use petro-
leum-based cleaners or lubricants.
2. Reinstall the o-ring (12) onto the volute base (13).
3. Slide the volute (9) onto the shaft. The impeller will sit inside the volute therefore the hollowed-out end
of the volute will be towards the front of the pump. NOTE: there is no difference between the two
volutes, either one can be used.
4. Slide the impeller (8) onto the shaft. Align the cross cut-out in the impeller with the cut-outs on the
shaft. The metal on the impeller will be facing the front of the pump. Ensure the impeller and volute sit
tightly against the volute base. NOTE: there is no difference between the two impellers, either one can
be used.
5. Slide the second volute (9) onto the shaft with the hollowed-out end of the volute towards the front of
the pump.
6. Slide the second impeller (8) onto the shaft. Align the cross cut-out in the impeller with the cut-outs on
the shaft. The metal on the impeller will be facing the front of the pump.
7.
Slide the volute cover (7) onto the shaft. The flat side of the volute cover will be facing the motor.
8. Slide the washer and acorn nut (5) onto the shaft. Hand tighten the acorn nut onto the shaft.
9. Insert the screwdriver in the slot near the center of the fan blade (22). Hold this firmly in place to pre-
vent the shaft from turning; at the same time use a 13 mm socket wrench to tighten the acorn nut.
10. Reattach the motor base cover (18) and attach screws (19) using a #1 cross-head screwdriver.
11. Stand the pump on the motor and seat the o-ring (6) into the edge of the volute cover (7).
12. Replace the casing (4).
13. Replace the 3 pieces of the flange (2), add the washers and screws (1) and loosely secure the screws by
hand-tightening. Secure the screws with a 5mm hex key starting with the holes at the flange joints.
Secure the remaining screws using the hex key. Ensure the flange is laying flat against the casing.
Replacing the Flow Control Unit
The flow control unit comes pre-wired to the pump. Replacement requires an experienced electrician. If you
require a replacement flow control unit, please contact our Technical Support Line at 888.885.9254, who can
assist you in obtaining our professional version, Item # 91987102, Model # FIL-FLW15 which includes an
instruction sheet with the necessary wiring information.
MAINTENANCE
Pump Maintenance
9