Maintenance; Pump Disassembly - Flotec FP5712 Manual Del Usuario

Maintenance

Pump Disassembly

Hazardous voltage. Can shock, burn or
cause death. Disconnect power to pump before servicing.
Tools required:
1. 7/16" open end wrench (2 required).
2. Flat blade screwdriver with insulated handle.
3. Work bench with vise recommended.
4. Pliers or similar tool.
5. Pipe wrench.
Impeller Stack Replacement (See Figure 8)
Remove pump from service and mount vertically in vise
(if available) motor side down. Clamp motor at center. It
may be desirable to wrap motor with a shop rag to pro-
tect outside surface.
Proceed as follows:
1. Attach pipe wrench to flats on discharge connection
and turn clockwise to remove (left hand threads).
2. Remove screws holding motor canopy and remove
canopy. Pull canopy straight off as shown.
Discharge
1
Connection
See View A-A
3
2
Figure 8 – Impeller stack replacement.
For parts or assistance, call Flotec Customer Service at
Remove with
clockwise
rotation.
Torque discharge
connection to 80 - 100 ft-lbs
at reassembly
7/16" Open
End Wrench
Overload Protector
(Moved for access)
Capacitor
Disconnect from
power source.
A
Motor Canopy
Capacitor voltage may be hazardous. To
discharge capacitor, hold insulated handle screwdriv-
er by the handle and short capacitor terminals togeth-
er. Do not touch metal screwdriver blade or capacitor
terminals.
3. Unscrew overload and set it asize. Do not disconnect
wires. Slide 7/16" open end wrench in behind spring
loaded centrifugal switch as shown. Place on motor shaft
flats to hold shaft stationary.
4. With one 7/16" wrench in place on motor shaft, place
second wrench on shaft hex at pump end and
unscrew impeller stack by turning counter-clockwise.
5. Once loose from motor shaft, hold shaft by snap ring
using a pliers or similar tool, and pull stack from
shell. You may have to apply a back and forth motion
to break stack loose from shell.
To assemble with replacement impeller stack, keep pump
in the vertical position, motor down, and reverse instruc-
tions 1 through 5.
Assembly hints:
A. Apply a soapy water solution to suction and dis-
chage O-Rings to ease seating of shell.
B. Make sure mechanical shaft seal spring is in prop-
er position on motor shaft.
Remove with
4
Counter-clockwise
rotation.
3
Overload screw
(remove)
Centrifugal
Switch
View A-A
Motor end view with
canopy removed
1-800-365-6832
8
Snap
5
Ring
Impeller
Stack
1211 0605