Section
E41•T41
Page 513
Dated
June 2016
97-4622-01-588
Figure 4-17
Figure 4-18
f. Check to see that the head as-
sembly is against the seat face.
g. Position the rotating element
spring with the spring holder
resting against the shoulder of
the sleeve hub.
h. Align the keyway slot in the
hub assembly with the key in
the motor shaft, refer to Figure
4-15.
i. Slide the hub and spring as-
sembly over the shaft until the
hub is properly seated and the
spring is positioned correctly on
the rotating element head previ-
ously installed. Refer to Figure
4-16 and 4-20.
j. While maintaining inward
pressure on the hub, install the
impeller nut. Refer to Figure
4-17.
4. Install the impeller.
a. The impeller is a slip fit and
should slide on firmly but easily
until it stops against the impel-
ler wearing surface. Force
should not be required to install
the impeller in the correct posi-
tion.
b. The impeller hub should be
facing out away from the motor
bracket.
c. If the impeller does not fit,
repeat steps a. and b. to deter-
mine the problem.
5. Place “O” ring (#7) into the “O”
ring groove in the motor bracket.
It is helpful to stand the motor and
pump assembly on end for this
procedure.
6. Remove the thru bolts installed
in 2a. Place the cover over the
motor bracket and install the four
(4)3/8”x4” bolts. Tighten the bolts
systematically, alternating diago-
nally across the cover. These bolts
must be torqued to about 20 ft.
lbs. to obtain proper performance.
4H Reassembly D3 (E41)
All parts should be visually inspected
and cleaned or replaced as outlined
in 4E above.
1. The seal seat (#125) must be
installed in the motor bracket (#1)
before the bracket is installed on
the motor. To install the seat:
a. Place the motor bracket face up
on a flat surface.
b. Apply a coating of compatible
lubricant to the elastomer
portion of the seat to aid with
installation.
c. Carefully press the seat,
smooth side up, into the seat
cavity of the motor bracket.
Thumb pressure is usually
sufficient to install the seat.
2. Install the motor bracket. This is
best done with the motor standing
on end. Make sure that both the
face of the motor and the feet of
the motor bracket are clean. Slide
the motor bracket over the shaft
onto the motor.
3. Install the rotating element (#12).
Lubricate I.D. of the rotating
element. Place the rotating
element on the shaft with the
carbon end towards the seat.
Place the spring over the shaft,
with the backing plate up and
compress the spring to locate the
rotating element against the seat.
If this fails to seat the rotating
element gently push the rotating
element down with a thin blade
screwdriver being careful not to
damage the seat or the rotating
element.
4. Compress and hold the seal
spring slightly below the snap ring
groove and install the snap ring
(#4). Make sure the snap ring is
locked in the groove.
5. Install the impeller key (#23) into
the shaft keyway.
6. The impeller is a slip fit and
should slide on firmly but easily
until it stops against the impeller
wearing surface. Force should
not be required or used to install
the impeller in the correct position.
The impeller hub should be facing
out away from the motor bracket.
Refer to Figures 4-4 and
4-5.
7. Next, rotate the impeller by hand,
the impeller should move freely.
8. Place the large “O” ring (#7) into
the outside “O” ring groove in the
motor bracket.
9. Place the cover over the motor
bracket and install the four
(4)3/8”x4” bolts. Tighten the
bolts systematically, alternating
diagonally across the cover.
These bolts must be torqued to
about 20 ft. lbs. to obtain proper
performance.
Figure 4-15
Figure 4-14
k. Tighten the nut as far as pos-
sible by hand.
l. Pressure can now be released .
m. To tighten the nut, place a
crescent wrench over the hub
sleeve and engage the drive
key.
n. Place a second crescent
wrench over the nut and tighten
in a clockwise direction until it is
secured. Refer to Figure 4-18.
