Pentair BERKELEY Serie Manuel Du Propriétaire page 7

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 changeout (See Figure 7)
Remove pump from service and mount vertically in
vise (if available) motor side down. Hold at center of
motor. It may be desirable to wrap motor with a shop
rag to protect 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 straight off as shown. Leave switch
wires attached (if present).
capacitor voltage may be hazard-
ous. To discharge capacitor, hold insulated handle
screwdriver by the handle and short capacitor term-
1 Discharge
Connection
See View A-A
3
2
figure 7 – impeller stack changeout.
Remove with
clockwise
rotation.
Torque discharge
connection to 80 - 100 ft-lbs
at reassembly
Overload Protector
(Moved for access)
Capacitor
Disconnect from
power source.
A
Motor Canopy
inals together. Do not touch metal screwdriver blade
or capacitor terminals.
3. Unscrew overload and move it aside. 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
instructions 1 through 5.
Assembly hints:
A. Apply a soapy water solution to suction and
discharge O-Rings to ease seating of shell.
B. Make sure mechanical shaft seal spring is in
proper position on motor shaft.
C. On three-phase models, apply Loctite No. 271 to
motor shaft threads before reinstalling stack.
Remove with
4
Counter-clockwise
rotation.
3
7/16" Open
End Wrench
Overload screw
(remove)
Centrifugal
Switch
View A-A
Motor end view with
canopy removed
7
Snap
5
Ring
Impeller
Stack
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