23833A245
7
TO REPLACE POWER CORD OR
AUTOMATIC CONTROL FLOAT
1. Use a wrench to loosen and remove thermoplastic
nut from the cap socket. Use your fingers to
pull and wiggle the cord end connector from the
socket.
2. To replace either the power cord or automatic
control float, align the half circle notch on the cord
end connector with the half circle key in the socket.
Press the connector into the socket all the way.
3. Slide the thermoplastic washer onto the top of the
cord end connector.
4. Screw the thermoplastic nut into the socket.
Tighten the nut snugly, but do not over tighten.
The nut may be tightened a little more after the
connector has set over a period of time.
5. If replacing automatic control float be sure to tether
float approximately 3-5/8”.
FOR SHAFT SEAL ONLY REPLACEMENT
1. Remove the six screws from top thermoplastic cap
and bump cap with plastic hammer to loosen.
2. Lay the cap back, do not disconnect wires from
the cap. Pour all the oil from the pump. If the old
seal failed there may be water in the oil and old oil
should be discarded.
3. Remove the eleven machine screws holding the
volute halves together. Separate lower half volute
from the upper half by using a rubber hammer
and/or prying lightly with a screwdriver.
4. Lay pump on its side. Place a flat screwdriver
in the slot in the bottom of the shaft and turn the
impeller counterclockwise to remove it from the
shaft. A blow from a rubber hammer may be
necessary to loosen the impeller.
5. Remove the rotating portion (carbon) of the
seal with pliers. Pry out the stationary portion
(ceramic) with a pair of slotted screwdrivers to
remove from volute casing. Discard the old seal
assembly parts. NEVER USE OLD SEAL PARTS,
REBUILD PUMP WITH ONLY NEW SEAL
ASSEMBLY.
6. Thoroughly clean the shaft and volute casing
with a clean cloth. If the drained oil showed signs
of water, then the motor should be air dried for
several days to remove any remaining moisture.
7. Remove the seal from the package being careful
not to touch the carbon or ceramic faces with
fingers or anything dirty. Add a film of oil to the
perimeter of the rubber cup holding the ceramic
and insert into the motor housing. Use a push tool
the same size as the ceramic face (a short piece
of PVC pipe works well).
8. With a clean dry cloth, wipe away any smudging or
oil from the seal faces. Add a film of new oil onto
the motor shaft. With the carbon facing towards
the ceramic, slide the rotating part onto the motor
shaft. Push it on far enough to attach impeller.
9. Screw the impeller clockwise onto the shaft using
a screwdriver to hold the shaft from turning and
tighten impeller. Use Loctite or equal on shaft
threads.
10. Place pump upright on top of lower volute half. Be
sure mating parts are together and reassemble the
eleven machine screws and tighten.
11. Check that the impeller turns freely.
12. Replace oil in motor housing using only Myers
submersible transformer oil. The oil should be
about 1/2” above the upper surface of the bearing
plate.
13. Reinstall the top thermoplastic cap, making sure
the o-ring is in position on the cap. Tighten the top
six screws snug, but do not overtighten.
14. Plug pump into receptacle to test operation. Pump
must run quiet and free of vibration.
TO REPLACE MOTOR STATOR HOUSING
ASSEMBLY AND SEAL
1. Stator assembly includes housing, stator, rotor
with shaft, thrust washers and metal bearing plate.
(See repair parts list)
2. Remove the six screws from top thermoplastic cap
and bump cap with plastic hammer to loosen.
3. Disconnect the four motor lead wires from the cap
pin terminals and remove cap. Pour all the oil from
the pump.
4. Remove the eleven machine screws holding the
volute halves together. Separate lower half volute
from the upper half by using a rubber hammer
and/or prying lightly with a screwdriver.
