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12
Operating Instructions and Parts Manual
CAP SCREWS
DIFFUSER
PUMP HOUSING
(VOLUTE)
CAP SCREWS
SEAL PLATE
MOTOR
IMPELLER
www.waynepumps.com
KITS SECTION
REMOVING OLD SHAFT SEAL Disconnect power and release all
pressure from the system before attempting to install, service, relocate or
perform any maintenance.
1. Disconnect power to the pump.
2. Open a faucet nearest to the tank and allow all water to drain
form the tank, then close.
3. Remove the four cap screws holding the pump housing (volute)
to the motor (Figure 12).
4. Separate the pump housing (volute) from the motor to expose
the diffuser and the seal plate.
5. Remove the two cap screws and diffuser from the seal plate to
expose the impeller.
6. Remove the rear cover on the end of the motor opposite the
impeller.
7. Secure a 7/16” wrench across wrench flats of shaft to keep the
shaft from rotating and remove the impeller by hand (standard
right hand thread). Be sure to hold onto the seal plate when
removing the impeller from the shaft.
8. Remove the seal plate.
9. Pry the rotating shaft seal member (including stainless collar and
rubber seal) from the impeller (Figure 13).
10. Push or pry the ceramic seat, and rubber seat ring free from the
seal plate (Figure 13).
11. Remove loose particles from impeller hub and seal plate.
INSTALLING NEW SHAFT SEAL
Before handling shaft seal parts wipe hands
clean. Dirt or grease MAY damage the seal.
Se laver les mains avant de manipuler les
pièces du joint de l’arbre. La poussière ou la graisse POURRAIT
endommager le joint.
NOTE: Be careful not to scratch the ceramic surface of the seal
seat and push seat enclosed in rubber into seal cavity on seal
plate. Use a cardboard washer to protect polished surface
when pushing against ceramic seat with any object. Be sure to
remove cardboard washer.
2. Carefully slip seal plate over shaft. Do not disturb seal position
in seal plate. The seal plate must be orientated during assembly
so the two screw holes are on a horizontal line across the motor
shaft (Figure 14). This placement should be done to ensure
proper draining and priming.
3. Place rotating shaft seal member in position on impeller and
press into place. Take care not to press against polished seal
surface.
4. Position impeller on shaft and tighten securely (Figure 15).
5. Secure diffuser to seal plate using the two cap screws. Be sure
the arrow on the front of the diffuser is pointing up and the
screws are orientated on a horizontal line as described in
Step 2.
6. Carefully position pump housing (volute) gasket over the diffuser
onto the seal plate. In all shallow well applications care must
be taken that the o-ring is clean and properly positioned on the
venturi. Cleaning and positioning makes a good seal inside the
diffuser when assembled.
7. Assemble the pump housing (volute) to the motor using the
four cap screws. Be sure the pump housing (volute) gasket is
positioned correctly and tighten the screws securely.
NOTE: Shaft must rotate freely and rear cover should be secured
before operation.
Figure 12 - Shaft Seal
Figure 13 - Removing Shaft Seal and Ceramic Seat
ROTATING SHAFT
SEAL MEMBER
IMPELLER
SEAL PLATE
RUBBER SEAT
RING
CERAMIC SEAT
Figure 14 - Seal Plate Replacement
SCREW
MOTOR
Figure 15 - Motor Shaft
SEAL PLATE
SEAL SEAT
MOTOR
SEAL PLATE
SEAL FACE
MUST BE
CLEAN FOR
PROPER SEAL
IMPELLER
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