Blue Angel 50CJW Manual De Instrucciones página 14

Operating Instructions & Parts Manual
Maintenance
(Continued)
require no additional lubrication.
REMOVING OLD SHAFT SEAL
Turn disconnect
switch to "off" position.
1. Disconnect power to the pump
2. Open a faucet nearest the tank and
allow all water to drain from the tank.
3. Remove the four cap screws holding
the pump housing (volute) to the
motor (Figure 13).
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 small end cap on the end
of the motor opposite the impeller.
7. With a large screwdriver or adjustable
wrench, keep the shaft from rotating
and remove the impeller with hand
(standard right hand thread). Be sure
to hold onto the cast iron seal plate
when removing the impeller from the
shaft.
8. Remove the seal plate.
9. Pry the rotating shaft seal member
from the impeller (Figure 14).
10. Push or pry the ceramic seat free from
Cap
Seal
Screws Plate
Diffuser
Motor
Impeller
Figure 13 - Convertible Well Pump
the seal plate (Figure 14).
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 can damage the seal.
1. Wet the inside of the seal cavity
on seal plate and the rubber cup
enclosing the new ceramic seat with
cooking oil. 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
so as not to disturb seal position in
Rotating
Shaft Seal
Member
Figure 14 - Removing Shaft Seal and
Ceramic Seat
seal plate. The seal plate must be
orientated during assembly so that
the two holes are on a horizontal
line across the motor shaft and the
(4) locating pins on the back of the
seal plate line up with the tabs on
the motor housing (Figure 15). This
placement should be done to ensure
proper draining and priming.
3. Place rotating shaft seal member in
position on impeller and press into
Pump
place. Take care not to press against
Housing
(Volute)
polished seal surface.
4. Position impeller on shaft and tighten
securely (Figure 16).
5. Secure diffuser to seal plate using the
two cap screws. Be sure the screws
are orientated on a horizontal line as
Drain Plug
described in Step 2.
6. Carefully position pump housing
(volute) gasket over the diffuser
Figure 15 - Seal Plate Replacement
Seal
Impeller
Plate
Rubber
Seat
Ring
Ceramic Seat
Screw
Holes
Motor
Shaft
7
50CJW and 100CJW
onto the seal plate. In all convertible
applications the seal ring must also
be positioned on the diffuser. 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
motor end cap should be secured before
operation.
Motor
Seal Plate
Impeller
Seal
Seat
Figure 16 - Motor Shaft
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Seal
Plate
Seal
Facing
Must
Be Clean For
Proper Seal