5
CAUTION
Block the lead wire opening in the motor housing (19) to prevent
any parts from falling down into the motor.
4. Cut shrink tubing (17) off wire connections. Remove
hex nuts (18), and screws (16) as necessary to break
connects between lead wire assy. (7) and motor (29).
Tag wires as disconnecting. Break connection between
sensor wire assy. (11) and sensor wires. Remove hex
head screw (19) and disconnect ground wire.
5. If necessary, remove and replace wire connector (15).
6. To replace sensor cord (11), remove screws (8), lock
washers (9), and lead clamp (10). Pull sensor cord (11)
from lead wire housing (12).
7. To replace power cord (7), remove lead clamp cap (1),
washer (2), and lock ring (3). Remove screws (4), lock
washers (5) and lead clamp (6). Pull power cord (7)
from lead wire housing (12).
8. Remove seal ring (14) from lead wire housing and inspect
for damage.
E. When removing motor (29)...
1. Complete Sections A, B, C and D.
2. Remove the eight nuts (24), washers (25) and socket
head screws (35) which secure the bearing housing
(34) to the motor housing (20).
3. Set motor assembly vertical on blocks and lift the motor
housing (20) off the bearing housing (34) and motor
assembly. Be careful to lift the motor housing (20) straight
off, so as not to damage the motor (29).
4. Remove the seal ring (26) from the bearing housing
(34).
5. Remove four long hex head through bolts that attach
motor (29) to bearing housing (34) and note which holes
in bearing housing each one was removed from. Pry
off top cap of motor and then remove stator and rotor
separately. Be careful not to damage stator windings.
6. Using a bearing puller, bearing against the inner race,
remove the double row bearing (33). Replace the bearing
if needed.
Note:
The bearing should be cleaned with volatile mineral spirits
and relubricated with proper lubricants immediately after
cleaning. Never dry bearings with compressed air, and
never spin unlubricated bearings.
F. When removing sensor studs (32)...
1. Complete Sections A through E5.
2. Pull pin terminals of moisture sensor leads (32) loose
from moisture sensors.
3. Unscrew moisture sensors and remove.
ASSEMBLY PROCEDURES
Pumps are reassembled in reverse order of disassembly. The
following suggestions are offered.
Note: While 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 fan (31) (Applies to installation of new motor
only)...
1. Press the fan (31) on the rotor shaft until seated against
the rotor end ring. Note that the fan blades are bent away
from the motor rotor.
B. Installing sensor studs (37 or 39)...
(Before S/N 00605)
1. Screw sensors (32) into bearing housing (34). Apply 34
in. lbs. of torque.
2. Push terminals of moisture sensor leads (32) onto moisture
sensors (32).
C. Installing motor (29)...
Note: Before installing the bearing (33), wipe the bearing seat on
the shaft clean and coat the seat with oil to prevent galling of the
shaft as the bearing (33) is pressed onto the shaft. A properly sized
pressing sleeve should be used to install bearing (33), with pressure
being applied to only the inner bearing race.
1. Install the double row ball bearing (33) and the upper
bearing on the shaft.
2. Install the rotor/bearing assembly into the bearing housing
(34) then lower stator down over rotor and position motor
cap. Secure motor (29) to bearing housing (34) with four
long hex head through bolts (supplied with motor).
CAUTION
Do not damage motor windings.
3. Lightly oil and position the seal ring (26) around the pilot
shoulder of bearing housing (34).
4. Set the motor assembly vertical with the bearing housing
(34) down, resting on blocks. Lower the motor housing
(20) over the motor assembly, pulling the sensor wires
(32) between the housing (20) and motor stator as the
housing (20) is lowered.
5. Pull the motor leads through the top of the housing (20).
6. Seat the motor assembly in the motor housing (20) and
secure with eight screws (35), nuts (24), and lock washers
(25).
7. Install the pipe plug (27) in the lower of the two holes in
the side of the motor housing.
D. Installing sensor cord (7) and power cord (11)...
1. Apply light coating of oil on the molded part of both the
power cord (7) and sensor cord (11), and install the two
cords in the tapered bores of the wire housing (12).
2. Slide the lead clamps (6 and 10) over the cords and secure
to lead wire housing (11) with lock washers (5 and 9) and
screws (4 and 8). Press lock ring (3) over power cord (7),
and seat in lead clamp (6). Install washer (2) and cap (1)
over clamp (6).
3. Install the seal ring (14) on the lead wire housing (12).
4. Connect lead wire terminals to motor lead terminals in the
proper arrangement as per wiring diagram using screws
(16) and nuts (18) and shrink tubing (17). Place shrink
© Copyright 2019 Zoeller
®
Co. All rights reserved.
Assembly Procedures
Disassembly Procedures,
continued