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Pumps are reassembled in reverse order of dissemble. The following sugges-
tions are offered.
NOTE: While the pump is dismantled, all gaskets, seal rings and retaining
rings should be checked for wear and deterioration. Replace all worn items.
Insure that all parts are thoroughly cleaned before assembly.
A.
Installing the sensor studs (17)...
1. Apply oil to threads of sensor studs (17).
2. Apply oil into threaded holes in adapter (19).
3. Screw sensor stud (17) into adapter (19) apply 34 in*lbs. of torque.
4. Place resistor leads into sensor tubing and crimp tubing.
B.
Assembly of rotor (14)...
1. Inspect rotor to see that the snap ring is in place and snapped in
the groove. This snap ring serves as a locator for the lower
bearings.
NOTE: Before installing the bearing, wipe the bearing seats on the shaft clean
and coat the seats with oil to prevent galling of the shaft as the bearings are
pressed onto the shaft. A properly sized pressing sleeve should be used to
install bearings, with pressure being applied to only the inner bearing race.
2. Install the lower ball bearing (16) and the upper ball bearing (13)
on the rotor shaft (14).
3. Set the adapter (19) on blocks to allow the rotor shaft to clear the
work surface when installed.
4. Install the rotor/bearings assembly into the adapter housing (19).
Make sure the lower bearing is seated in the bearing pocket.
C.
Installing the motor housing/stator (12)...
NOTE: The motor housing/stator assembly is furnished from the factory as a
glued in unit. The assembly will include the motor housing, the stator prewired to
installed through wall terminals (10) and moisture sensor wires (33) if applicable.
1. Lightly oil and position the seal ring (18) around the pilot shoulder
of the adapter (19).
2. Install the pre-load washer (32) in the upper bearing pocket of
the housing/stator unit (12). The pre-load washer should be
stretched a little to allow it to remain in the pocket when turned
upside down.
3. With the rotor/adapter assembly in the vertical position suspend
the motor housing/stator unit over it. Slowly lower the unit
aligning the rotor and stator opening. If moisture sensors are
present plug the terminals of the wires (33) onto the sensor (17)
at this time.
4. Tuck the moisture sensor wires away from the rotor while
lowering the motor housing/stator unit into place on the adapter.
5. Secure the motor housing/stator (12) to the adapter (19) with
four screw (2) and four lock washers (3). Torque screws to
175-195 in-lbs.
NOTE: The small arrow heads on housing flanges are to be aligned for proper
orientation.
D.
Installing cord and cover assembly...
NOTE: The cord(s) will come from the factory as a cord(s) and clamp assembly
(6). The assembly consist of the power cord, the sensor cord if applicable, the
wire terminals, the clamp and the potting compound between the cords and clamp.
1. Unroll the cords of the cord and clamp assembly (6) and slide the cord
seal (5) down the cords to the clamp.
2. From the inside of the cover (4) place the cords of the assembly (6)
through the holes and pull through the top.
3. Push the cord seal (5) into it's pocket inside the cover (4). Push the
clamp (6) tight against the seal.
4. Apply thread locker compounds to the screws (8) and install into
Assembly Procedures
5. Apply thread locker compound to ground screw and install ground
6. Lightly oil and install seal ring (9) on shoulder of cover (4).
7. Suspend the cord and cover assembly over the motor housing and
NOTE: The power wiring goes to the numbered terminal, the moisture
sensor to M1 and M2 and the thermosensor to T1 and T2.
8. Tuck the wires in the cover assembly as installing the cover into
9. Secure the cover (4) to the motor housing (12) with four screws (2)
NOTE: The small arrow heads on the castings are to be aligned for proper
orientation.
E.
Apply a light coat of oil to seal faces before installng.
1. Refer to rotary seal component placement diagram for relative
2. Apply a coating of oil to the seal seat and the bore of the adapter (19),
3. Apply 80-90 weight gear oil to the shaft and to the inside diameter
4. Install the spring and spring holder over the shaft and seat against
5. Lightly oil and install seal ring (18) on the seal retainer (23).
6. Press the seal retainer (23) into the adapter (19) and secure with the
7. Install the seal seat and rotating section of the lower rotary seal
F.
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Co. All rights reserved.
®
5
clamp along with lock washers (7). Using a cross pattern, tighten the
screws to the seal clamp evenly. Torque screws to 69-72 in-lbs.
wires to cover.
make wiring connections per the proper wiring diagram.
place.
and four lock washer (3). Torque screws to 175-195 in-lbs.
Installation of rotary seals and seal retainer
Make sure all seal faces remain free of dirt particles.
CAUTION
positioning of seal parts.
and using a nonmetallic sleeve, press the seat into position in the
adapter.
SEAL SEAT
SPRING
SNAP RING
UPPER ROTARY SEAL COMPONENT
PLACEMENT DIAGRAM
(Lower rotary seal is same except impeller hub
serves as spring holder and snap ring)
of the rotating section of rotary seal (20). Push the rotating section
onto the shaft in a continuous motion until the seal faces meet.
the rotating section. Compress the spring as necessary and install
retaining ring (21) in the groove of the motor shaft.
four socket head screws (22).
assembly (24) into the seal retainer (23) in the same manner
described in steps 2 and 3 above.
Installing the impeller...
ROTATING
SECTION
SPRING
HOLDER
ZEPA0194
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