6
Service
11. Inspect motor winding for shorts
and check resistance values. Check
rotor for wear. If rotor or the stator
windings are defective, the complete
motor must be replaced.
Shaft Seal:
12. Remove snap ring from seal plate.
Remove shaft and motor rotor from
seal plate.
13. Remove seal’s rotating member,
spring and retaining ring from seal
plate. Examine all seal parts, if seal
faces show signs of wear, uneven
wear pattern, chips or scratches
replace
entire
seal.
DO
NOT
interchange
seal
components,
replace the entire shaft seal
. If
replacing seal, remove stationary
from seal plate by prying out with flat
screwdriver.
Bearings:
14. Examine lower bearing, and
upper bearing, if replacement is
required, remove by using a wheel
puller.
IMPORTANT! - All parts
must
be
clean
before
reassembly. Handle seal
parts with extreme care. DO NOT
damage lapped surfaces.
4
Reassembly
Bearings:
1. Press bearings and onto shaft.
Shaft Seal:
2. Clean seal cavity in seal plate and
oil. Press seal’s stationary member
firmly into seal plate, use a seal tool
or pipe. Nothing should come in
contact with the seal face except the
seal tool. Be sure the stationary is in
straight.
3. Place seal’s retaining ring, spring
onto shaft. Lightly oil
(Do not use
grease)
shaft and inner surface of
bellows.
4. With lapped surface of rotating
member facing outward, slide over
shaft using a seal tool, being carefull
not to damage seal face. Make sure
spring is seated in retaining ring and
spring is lined up on rotating
member and not cocked or resting
on bellows tail.
Motor:
5. Slide rotor/shaft with bearings and
seal parts into seal plate until bearing
seats into seal plate. Install snap ring
into seal plate.
6. Place spring washer onto bearing
and lower housing and stringing
motor leads through the cord entry
bore, with motor stator onto seal
plate.
7. Place screws through seal plate
into housing and torque to 60 in/lbs.
Power Cord:
8. Check power cord for cracks or
damage and replace if required.
Reconnect motor leads to the
underside of the terminal holder.
9. Place power cord with nylon
housing, ring, washer and gland nut
into housing and tighten gland nut
to 17.5 ft/lbs.
Impeller, V-ring and Volute:
10. Position v-ring into seal plate until
seated.
11. Clean the threads with thread
locking compound cleaner. Apply
removable Loctite® 242 or equivalent
to shaft threads. Screw impeller onto
the shaft hand tight while using a
screwdriver in the slot at the end of
the shaft to hold it stationary. Rotate
impeller to check for binding.
12. Position gasket on volute flange
and position impeller and motor
housing assembly on volute.
13. Place lock washers on cap screws
and screw into volute. Torque to 11
ft/lbs. Check for free rotation of
impeller.
14. Refill with cooling oil.
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Содержание 2BSE411 Series
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