10
FIGURE 7
Seal -
To expose shaft seal (46) for examination, complete
above procedure and slide off outboard rotating member
(46B), See Figure 4. Remove inboard rotating member (46),
from shaft. Examine all seal parts and especially contact
faces. Inspect seal for signs of wear such as uneven wear
pattern on stationary members, chips and scratches on either
seal face.
DO NOT
interchange seal components, replace the
entire shaft seal (46).
F-4.2) Reassembly:
Diaphragm -
At reassembly, make sure the bulge and
molded-in part number of diaphragm (32) is facing the seal
plate (25). With diaphragm (32) in place, lay diaphragm clamp
(43) in place on seal plate (25) and insert the four cap screws
(44) and tighten. Apply pipe thread compound to moisture
sensor probe (18), if equipped, and insert in bearing bracket
(21). Attach wires (16) with lockwashers (15) and screws (14).
Seal -
Clean and oil seal cavities in bearing bracket (21)
and seal plate (25). Lightly oil
(DO NOT use grease)
outer
surface of inboard stationary member (46E) and outboard
stationary member (46A). Press inboard stationary member
(46E) fi rmly into bearing bracket (21) and outboard stationary
(46A) into seal plate (25), using a seal pusher (see parts list-
seal tool kit), nothing but the seal pusher is to come in contact
with seal face (See Figures 5 & 6).
Important ! - DO NOT hammer on the seal pusher-
it will damage the seal face.
Make sure the stationary members are in straight and that
the rubber ring is not out of it’s groove. Lightly oil
(DO NOT
use grease)
shaft and inner surface of bellows on rotating
member (46D) See Figure 7. With lapped surface facing
bearing bracket (21), slide rotating member (46D) onto shaft,
using seal pusher, until lapped faces of (46D) and (46E) are
together (See Figure 6). It is extremely important to keep seal
faces clean during assembly. Dirt particles lodged between
these faces will cause the seal to leak.
Make sure driving lugs in retainer are matched in rotating
member. Place spring (46C) over shaft and in place on rotating
member (46E), making sure it is seated in retainer and not
cocked or resting on bellows tail. Re-oil shaft and lightly oil in-
ner surface of outboard rotating member (46B).
With tail section toward bearing bracket (21), slide rotating
member (46B) onto shaft with seal pusher until retainer engag-
es spring (46C) and spring is compressed slightly. Make sure
spring (46C) is properly engaged in both retainers. Slide seal
plate (25) over shaft onto bearing bracket (21), being careful
not to damage outboard stationary member (46A) and align
holes for socket head cap screws (39). Thread socket head
cap screws (39) into bearing bracket (21) and tighten. Fill seal
chamber with oil as outlined in paragraph F-1.3. Reassemble
impeller and volute per paragraph F-2.2.
F-4.3) Wiring Connections:
Check power cable (10A) and control cable (10D) (if used), on
conduit box (10), for cracks or damage and replace complete
conduit box assembly (10) if required (see Fig. 5). Bring motor
wires through wire opening in top of housing (2),check sleeving
(53) and replace if required, position square ring (11) in conduit
housing (10) and reconnect motor leads to power cable and
moisture and temperature sensor leads to control cable (if
equipped) using connectors (12), (17) and insulators (54) as
show in Figure 8.
F-4.4) Conduit Box and Cable Assembly:
Refi ll with cooling oil as outlined in paragraph F-1.3. Position
conduit box (10) and square ring (11) over opening, apply
thread locking compound to cap screws (6) threads and torque
to 16 ft. lb. Remove gland nuts (10B) and (10F), friction rings
(10C) and (10G), and grommets (10D) and (10H) from conduit
box (10) inspect and replace if required.(See Figure 9).Insert
one friction ring (10C), grommet (10D), one friction ring (10C)
and gland nut (10B) into conduit box for power cable (10A). For
control cable (10E) (if used), insert grommet (10H), friction ring
(10G) and gland nut (10F). Torque gland nuts (10B) and (10F)
to 15 ft. lb. to prevent water leakage.
Stationary Member (46A) &
(46E) Polished Face Out
Seal Plate (25) and
Bearing Bracket (21)
Seal Pusher
FIGURE 6
Rotating Member (46D)
Bullet
Motor & Bearing Bracket
Seal Pusher
Stationary
FIGURE 9
Gland Nut (10B)
Power Cable (10A)
Friction Ring
(10C)
Grommet
(10D)
Friction
Ring
(10C)
Conduit Box
& Cable
Assembly
(10)
Friction Ring
(10G)
Grommet
(10H)
Friction
Ring
(10G)
Gland Nut (10F)
Control
Cable
(10E)
