Specifications Information and Repair Parts Manual
5760-95 thru 576E-95
5760-250-00
2
4/2014
2. With unit on its side and wire cover, pump assembly and impeller removed,
lift shaft key (Ref. No. 13) from shaft/rotor (Ref. No. 12) using a pliers.
3. Clean rust and buildup from unit.
4. From top of unit, remove four long fasteners (Ref. No. 10), which attach
lower end bell (Ref. No. 16) to motor case (Ref. No. 11).
5. Rap on ears of lower end bell with a soft mallet to break it free from motor
case. Next, carefully guide lower end bell along with shaft/rotor and
bearing assembly out of motor case.
6. Drain oil from seal cavity by removing drain screw (Ref. No. 23) and seal
(Ref. No. 22) from seal plate (Ref. No. 21). Then tip components upright
overtop of a catch pan until oil is drained.
7. Remove three fasteners (Ref. No. 25) and pry out seal plate with
screwdriver. Slinger washer (Ref. No. 24) will come free at this time.
8. Use a press or gear puller to remove shaft and bearings from lower end
bell. Shaft seal head will now be free.
IMPORTANT:
Shaft seal head (with spring) has unique ends and two seal
seats are different from one another also. Be sure to note size and color of
each before disassembly so that new parts are installed in proper orientation.
9. Remove upper seal seat (Ref. No. 17) from lower end bell by using a
screwdriver or dowel to press on seal from rear. Do the same for lower
seal seat (Ref. No. 19) in seal plate.
10. Clean seal seat cavities before inserting new seals.
11. Carefully wipe polished surface of new seal seats with a clean cloth.
12. Wet outside of rubber portion of seal seats with a light coating of soapy
water.
13. Press each new seal seat squarely into cavity in both seal plate and lower
end bell. If seal seat does not press squarely into cavity, it can be adjusted
into place by pushing on it carefully with a piece of pipe or dowel. Always
use a piece of cardboard between pipe and seal seat to avoid scratching
seal seat. (This is a lapped surface and must be handled very carefully.)
14. After each seal seat is in place, be sure that it is clean and has not been
marred.
15. Using a clean cloth, wipe shaft and make certain that it is perfectly clean.
16. Carefully guide motor shaft through seal seat and use a press to seat
bearing back into lower end bell.
17. Apply a light coating of soapy water to inside rubber portion of seal head
and slide onto shaft (be sure to start correct end first).
18. Place seal plate back onto lower end bell being careful to guide shaft and
avoid damage to seal seat. Secure with fasteners.
19. Press slinger washer back in place.
20.
Refill cavity with oil through fill hole and reassemble in reverse order.
Submersible Shredder Pumps
Figure 1 - Impeller Removal
