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Figure 9
Figure 10
Figure 11
Figure 12
5.Remove cap screws (Key No. 16, Page 12) from front plate (Key No. 13).
Remove front plate with trap (Key No. 20) attached. Remove and inspect
O-Ring (Key No. 12).
6.Remove end cap (Key No. 2) from motor cover(Key No. 6).
7.Hold motor shaft with 7/16" wrench on flats on motor shaft; unscrew im-
peller (Key No. 11).
8.Carefully remove rotating half of seal (Key No. 10) from impeller sleeve.
Twist as you pull; make sure you do not damage surface of sleeve where
seal both seats and seals. See Figure 9.
9.Remove motor throughbolts (see Figure 10). Remove seal plate (Key No. 9).
Tap stationary half of seal out of seal plate (see Figure 11).
10. If necessary, disconnect electrical wiring from motor terminal board and
remove motor (Key No. 6) from motor cover(Key No. 7).
Pump Assembly:
1.Examine seal cup and O-Rings. Replace anything that shows signs of wear
or damage.
2.Check the shaft seal (Key No. 10) for scoring, scratches, chips, etc., and for
any signs of damage to spring or retainer. Replace if any wear or damage is
visible.
3.Press stationary half of seal into seal plate (Key No. 9) using finger pressure
only (see Figure 12). Make sure seal is firmly and evenly seated.
4.Install rotating half of seal on impeller sleeve. Push it onto sleeve until it
butts against back of impeller.
5.Insert impeller sleeve through center hole in seal plate (Key No. 9). Thread
flinger (Key No. 8) over the end of the impeller sleeve.
6.If motor has been removed from motor cover, reinstall it now. Set up seal
plate (Key No. 9) in front of motor cover; hold motor shaft with 7/16"
wrench on shaft flats (under cap) and thread impeller through center hole
in seal plate onto shaft. Make sure that flinger is in place on impeller sleeve
– not loose on shaft.
7.Install motor throughbolts; make sure seal plate butts firmly against motor
endbell.
8.Install front plate (Key No. 13). Tighten cap screws in sequence as shown
in Figure 13; tighten to 30 inch-lbs. (34.5 cm-kg.) torque.
9.Reinstall drain plugs; reinstall pump and motor on base and tighten hold-
down bolts.
10. Reconnect unions; tighten hand tight only.
#5
#2
#6
Figure 13 – Torque Sequence with upright discharge (left); with
horizontal discharge (right).
9
#3
#1
Start
Here
#4
START HERE
1
4
3
5
6
2
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