11
IMPORTANT! - All parts must be clean before
reassembly.
F-3.2) Reassembly:
Bearing -
When replacing bearing, be careful not to damage
the rotor or shaft threads. Clean the shaft thoroughly. Apply
adhesive compound to the shaft and press bearing (47) on
the motor shaft, position squarely onto the shaft applying
force to the inner race of the bearing only, until bearing seats
against the retaining ring (30).
Moisture Sensors -
If pump is equipped with moisture
sensors, reassemble by applying thread compound to threads
on electrodes (18) and install in bearing bracket (21). Connect
wire assemblies (16) to electrodes (18) with machine screws
(14).
Thermal Sensors -
If pump is equipped with Thermal Sensor,
connect sensor leads to terminal block (55) as shown in Figure
11. If sensor is not functioning, contact factory approved
service center or contact factory service department.
Motor
- Slide lower bearing (47) and motor shaft squarely
into the bearing bracket (21) until bearing seats on the
bottom. Install retaining ring (29) in bearing bracket (21).
Place stator over rotor, lining up motor bolts with holes in
bearing bracket (21). Position capacitor (3, 1 phase units) so
that it will lay on the opposite side of the cord entry bosses
of the motor housing (2). Reconnect capacitor leads. Torque
motor tie bolts to 22 in-lbs. Set square ring (42) in groove on
bearing bracket (21).
F-3.3) Wiring Connections:
Check power cord (52) and sensor cord (53), for cracks
or damage and replace if required. Make internal wiring
connections which are independent of the terminal block
as shown in (Figure 12), using connectors (11) and wire
assemblies (12) as required. Do not use wire nuts. Slip
motor leads and ground wire through fi berglass sleeve (10).
Lower motor housing (2) down onto bearing bracket (21)
while aligning holes and stringing motor leads through the
cable entry bore(s). (Slipping cords inside a 1 ft. length of .5”
conduit makes this easier). Place socket head cap screws
(51) into motor housing (2) and torque to 75 in-lbs. Install
inner seal assembly as outlined in paragraph F-4.2. Install
square ring (42), bearing bracket (21), square ring (42) in
position on pump. Place socket head cap screws (39) into
seal plate (25) and torque to 75 in-lbs.
Reconnect motor and sensor leads to the underside of the
terminal block(s) (56), (55) as shown in Figure 5 & 11. Note
that the pins are numbered underneath the terminal block.
Place o-ring (57) into groove in terminal block and lubricate
with dielectric oil. Press the terminal blocks (55) (56) into the
housing so it seats completely below the snap ring groove.
Place snap ring (54) into groove in cord entry bore of motor
housing (2). Repeat terminal block installation for sensor
cord, if equipped.
F-3.4) Cord Assemblies:
Power/Sensor Cord - Refi ll the cooling oil as outlined in
paragraph F-1.4. Make wire connections as outlined in
paragraph F-3.3. Insert female end of cable plug into housing
bore aligning timing mark with hole in terminal block (55)
(56) (see Figure 6). Compress cord plug with compression
fl ange (52a)(53a) by tightening cap screws (6) into the motor
housing (2). Torque to 132 in-lbs.
FIGURE 6
FIGURE 5
POWER CORD (52)
CAP SCREW (6)
Lock washer (4)
COMPRESSION FLANGE (52a)
SNAP RING (54)
O-RING (57)
TERMINAL BLOCK (56)
SENSOR CORD (53)
CAP SCREW (6)
Lock washer (4)
COMPRESSION FLANGE (53a)
SNAP RING (54)
O-RING (57)
TERMINAL BLOCK (55)
TERMINAL
TERMINAL
Summary of Contents for 4SE-L series
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