Power-Flo Pumps & Systems • 877-24PUMPS • www.powerfl opumps.com
13
Motor -
Slide rotor/shaft with bearing
(18) into intermediate coupling (21)
until bearing seats into intermediate
coupling. Install retaining ring (39) into
intermediate coupling (21). Place motor
stator over rotor, lining up motor bolts
with holes in intermediate coupling (21).
Place end bell on top of motor and insert
motor bolts and torque to 17 in-lbs.
Set square ring (20) in grove on
intermediate coupling (21). Pull wires
through opening in top of motor
housing (15) while lowering motor
housing onto intermediate coupling
(21). Connect wires to pins on bottom
of terminal block (37) as noted at
disassembly and/or see wiring digram in
Figure 9.
Lubricate o-ring (12) with dielectric oil
and slide terminal block (37) back into
housing (15). Be sure terminal block is
engaged and install retaining ring (38).
Place cap screws (35) with lockwashers
(11) through housing (15) into
intermediate coupling (21) and tighten.
Seal Plate (Double) -
Lubricate and set
square ring (24) in bottom groove of seal
plate (51). Place seal plate (51) over shaft
and onto intermediate coupling (21B),
being sure square ring (24) is not twisted
and in the groove.
Place two capscrews (32) with
lockwashers (11) into seal plate and
torque to 6.5 ft/lbs.
Outer Seal (Single & Double) -
Clean
and oil stationary seal cavity in bearing
bracket (21A on Single Seal) or (51 seal
plate on Double Seal). Slide seal guide
tool over motor shaft. Lightly oil
(Do not
use grease)
outer surface of seal’s (33)
stationary member.
Press stationary fi rmly into bearing
bracket (21A on Single Seal) or (51 seal
plate on Double Seal) using a seal pusher
tool. Be sure the stationary member is
in straight. Nothing but the seal tool is
to come in contact with seal face. (See
Figure 6)
IMPORTANT ! Do not hammer
on the seal pusher. It will
damage the seal face.
With seal guide tool over motor shaft,
Lightly oil
(Do not use grease)
guide,
shaft and inner surface of bellows on
rotating seal. With lapped surface of
rotating member facing inward toward
stationary, slide rotating member over
guide and onto shaft, using seal pusher
tool, until lapped faces of stationary and
rotating seal are together. Place spring
over shaft and rotating member. Be
sure it is seated on the retainer and not
cocked or resting on bellows tail. Install
c-clip (43) onto shaft.
Impeller -
Place impeller (30) on motor
shaft by turning clockwise while holding
shaft stationary with screwdriver.
Shredding Ring -
Install shredding ring
(27) into volute with the use of an arbor
press.
Service
Figure 7
Figure 6
PFGPC - 2HP
Submersible Grinder Pumps
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