10
Power-Flo Pumps & Systems • 877-24PUMPS • www.powerflopumps.com
Shaft Seal:
14. Remove retaining ring (11) from seal
plate (8) and lift motor rotor & shaft (28),
bearings (25) & (31), rotating member of
seal (5) from seal plate (8). See Figure 3.
15. Remove seal parts (5) from shaft.
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 (5)
. If replacing seal,
remove stationary from seal plate (8) by
prying out with flat screwdrive.
Reassembly:
IMPORTANT! - All parts must be
clean before reassembly.
Handle seal parts with extreme
care. DO NOT damage lapped
surfaces.
Shaft Seal:
1. To reassemble, clean seal cavity in seal
plate (8) and oil.
2. Press seal’s (5) stationary member
firmly into seal plate (8), 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. Press upper (25) and lower bearings
(31) onto rotor/shaft (28).
4. Place seal’s (5) retaining ring and
spring onto shaft. Lightly oil
(Do not
use grease)
shaft and inner surface of
bellows.
5. 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.
Bearing & Motor:
6. Slide rotor/shaft with bearing and seal
parts into seal plate (8) until bearing
seats into seal plate. Insert retaining ring
(11) into seal plate (8). Place stator over
rotor, lining up motor bolts with holes in
seal plate (8). Insert motor bolts (27) and
torque to 17 inch pounds.
7. Lubricate and place square ring (9) into
bore on seal plate (8).
8. On Single phase units, connect capacitor
(23) to motor wires. See Figure 6. Install
ground wire on end bell if removed. Place
fiberglass sleeve over motor and ground
leads if removed. Pull wires through
opening in top of motor housing while
lowering motor housing onto seal plate (8).
9. Place socket head screws (7) through
seal plate into motor housing and torque
to 60 inch pounds.
Impeller & Volute:
10. Install v-gasket (4) and impeller washer
(3) over shaft, and into seal plate (8).
11. Install impeller (2) by cleaning the
threads with thread locking compound
cleaner. Apply removable Locitie® 609
or equivalent to shaft threads. Screw
impeller onto 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. Place gasket (6) onto volute (1).
13. Lower motor housing and seal plate
assembly onto volute (1). Apply thread
locking compound to capscrews (20)
and with lockwashers (21) place through
motor housing, into volute and torque to
11 ft. lbs.
Cable Assembly:
14. Connect motor leads to the bottom of
terminal block (12) as shown in Figure 6.
There are numbers next to the pins on the
bottom of terminal block for reference.
Place o-ring (13) into groove in terminal
block and lubricate with dielectric oil.
Figure 3
Service
PFSE .05, .75 & 1HP
Sewage Pumps
