IMPORTANT - It is extremely important to keep
seal faces clean during assembly. Dirt
particles lodged between these faces will cause the
seal to leak.
Place spring (12c) over shaft and in place on rotating
member (12b), making sure it is seated on retainer and not
cocked or resting on bellows tail. Slide retaining ring (12d)
over shaft and let rest on spring (12c). Assemble impeller,
cutter and volute as outlined in paragraph E-1.2.
E-3) Motor & Bearing Service
E-3.1) Disassembly and Inspection:
To examine or replace the motor (1), bearings (8) & (3),
disassemble volute and impeller as outlined in paragraph
E-1.1 and disassemble shaft seal as outlined in paragraph
E-1.1.
Remove motor end bell (1C), by removing four motor bolts
(1D). Next remove washer (1), and bearing (8) from motor
shaft. Examine upper bearing (8) and replace if required.
Lift motor stator from motor rotor. To remove ball bearing
(3), remove retaining ring (7) from seal plate (10) and pull
motor shaft, ball bearing (3) from seal plate (10).
Examine bearing (3) and replace if required. If
replacement is required, remove retaining ring (2) from
shaft and then by using a wheel puller or arbor press.
Inspect motor windings for shorts and check resistance
values. Check rotor for wear. If rotor or stator windings are
defective the complete motor must be replaced.
IMPORTANT ! - All parts must be clean before
reassembly.
E-3.2) Reassembly:
Bearings-
When replacing bearings, be careful not to
damage the rotor or shaft threads. Clean the shaft
thoroughly. Apply adhesive compound to shaft and press
bearing (3) on, applying force to the inner race of bearing
only. Install retaining ring (2) on shaft.
CAUTION ! - Handle seal parts with extreme
care. DO NOT scratch or mar lapped surfaces.
Motor-
Slide motor rotor with bearing (3) into seal plate
(10). Insert retaining ring (7) into seal plate (10). Set motor
stator over rotor being sure that stator drops flat against
register in seal plate (10). Apply adhesive to shaft and
press top bearing (8) on, applying force to the inner race
of bearing only. Place washer (11) onto shaft. Place end
bell (1C) on to motor and Insert motor bolts (1D) in motor
and torque to 17 inch pounds. Assemble outer seal per
paragraph E-2.2 and impeller, cutters and volute per
paragraph E-1.2.
SECTION: F REPLACEMENT PARTS
F-1 ORDERING REPLACEMENT PARTS:
When ordering replacement parts,
ALWAYS
furnish the
following information:
1. Pump serial number and date code. (F-4)
2. Pump model number. (F-3)
3. Pump part number. (F-2)
4. Part description.
5. Item part number.
6. Quantity required.
7. Shipping instructions.
8. Billing instructions.
F-2 PART NUMBER:
The part number consists of a six (6) digit number, which
appears in the catalog. A one or two letter suffix may follow
this number to designate the design configuration. This
number is used for ordering and obtaining information.
F-3 MODEL NUMBER:
This designation consists of numbers and letters which
represent the discharge size, series horsepower, motor
phase and voltage, speed and pump design. This number is
used for ordering and obtaining information.
F-4 SERIAL NUMBER:
The serial number block will consist of a six digit number,
which is specific to each pump and may be preceded by a
alpha character, which indicates the plant location. This
number will also be suffixed with a four digit number, which
indicates the date the unit was built (Date Code).
EXAMPLE:
A012345 0490.
Reference the six digit portion (Serial Number) of this number
when referring to the product.
2
1
3
9
