InSinkErator SS-50 Service Manual page 17

7. Carefully remove rotor shaft from upper end bell (Figure 22).
NOTE: Do not remove lower bearing or centrifugal switch
(1 Phase only) from rotor. If centrifugal switch is damaged,
rotor shaft assembly must be replaced
If bearing is damaged, press bearing off rotor shaft, support-
ing rotor shaft by the bearing. Press new bearing onto shaft
until fully seated on shaft groove.
8. Remove water and oil seal, bearing set and spacer from mo-
tor side of UEB (Figure 20).
NOTE: On SS-300, SS-500, SS-750 and SS-1000 units, re-
move steel thrust washer.
Do not attempt to remove large snap ring
from center of upper end bell. Snap ring
cannot be removed without damaging
upper end bell.
9. Using wood block and mallet, knock both bearing races out
from UEB.
10. Clean upper end bell of all grease, dirt and sealant. Clean
outside diameter of bearing cup and wipe dry with clean rag
(Figure 21).
11. Coat inner wall of bearing cavity with #242 Loctite and fully
seat new race (bevel side outwards). Turn end bell over and
repeat for other side.
12. Lubricate new bearing pack with Texaco RV1939 or equiva-
lent and install bearing pack into cavity on motor side of UEB.
13. Place new water & oil seal squarely into end bell recess (mo-
tor side). Using a wood block or soft mallet, tap seal into end
bell recess until it is flush with casting.
NOTE: On SS-300 and SS-500 (serial # 70,000 and above)
and SS-750 and SS-1000 units, install steel thrust washer.
14. Carefully insert rotor assembly into UEB from motor side.
15. Install stator, lower end frame, fan and bottom cover.
See "Stator" on page 20.
16. Install slinger and O-ring (Figure 19). O-ring should fit snug
against slinger.
17. Install lower woodruff key into shaft keyway.
18. Install spacer sleeve with channel fitting over O-ring, aligning
sleeve notch with woodruff key (Figure 22).
19. Coat machined face and groove (with 6 holes) of
upper end bell with water proof silicone sealant (Figure 21).
20. Install seal assembly and secure with screws (Figure 18).
21. Install shield and two woodruff keys.
14
Figure 20. Water and Oil Seal
Figure 21. Cleaning Upper End Bell
22. Install stationary and rotating shredder. See Installation
under "Replacing Stationary Shredder" on page 11 and
"Replacing Rotating Shredder" on page 12.
23. Place cover and upper body assembly onto upper end bell
assembly. There are two tabs on the inside of the cover.
These tabs fit into the two side grooves on the upper end bell
with the waste outlet aligned with the waste outlet cutout.
24. Install trim band and terminal box. See "Terminal Box & Trim
Band" on page 9.
25. Re-install tailpipe gasket and tailpipe using screws ("Cover
and Upper Body Assembly" on page 10).
26. Install disposer. See "Installing Disposer" on page 7.
Commercial Disposers
Service Manual