MAINTENANCE
10
I. Screw impeller on shaft (clockwise) while holding
shaft with 7/16” open end wrench on shaft flats. This
will automatically locate seal in place. See Figure 9.
J. Remount diffuser on seal plate.
Be sure
diffuser is
right side up as follows (see Figures 10 and 11).
a. Rib next to priming hole should be at six o’clock
position;
b. Part number (N1-28P) should be between nine
o’clock and ten o’clock.
c. Both mounting screws must engage screw holes
in seal plate. See Figure 10.
d.
Be sure
rubber pad (Figure 10; Key No. 8, Page
12) stays in place on top of diffuser.
Installing Copper Insert
NOTE:
If the copper insert (Key No. 4, Page 12) moves or
shifts during seal removal, it should be removed and rein-
stalled.
1. Remove copper insert as shown in Figure 12. do not de-
form.
2. Replace copper insert:
A. Clean off surplus Permatex* from around insert cav-
ity. Be careful not to scratch or mark the machined
bore. It is important that this area be clean no no old
Permatex lodges behind the new insert and causes im-
proper seating.
B. Place a small amount of No. 2 non-hardening
Permatex on surface of insert as shown. Smooth out
with finger. See Figure 13.
* “Permatex” is a registered trademark of Permatex Co. Inc.
Figure 9
Figure 10
Figure 11
Figure 12
