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Craftsman HYDROGLASS 390.2508 Owner's Manual page 9

Shallow well jet pump

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OPERATION
I.
Screw
impeller
on shaft
(clockwise)
while
holding
shaft wzth 7/16" open
end wrench
on shaft flats. This
v_fll automatically
locate
seal in place.
See Figure 11.
FACE OF
SEALING
WASHER
SEAL
PLATE
HOLES MUST
LINE UP
DIFFUSER
IMPELLER
HUB
SHAFT
SHOULDER
RUBBER
DRIVE RING
Figure
I I
Remount
diffuser
on seal plate.
Be sure
diffuser
is
right side up as follows
(see Figures 13 and 14).
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 12.
d. Be sure
rubber
pad (Figure
12; Key No. 8, Page
12) stays in place on top of diffuser.
BE SURE RUBBER
PAD
STAYS IN PLACE
ON
BESURESCREW
ENGAGES
HOLE
IN
SEALPLATE
MOLDED
PART NO.
AT 9:30
BE SURE SCREW
O'CLOCK
ENGAGES
HOLE
IN SEAL PLATE
RIB AT E O'CLOCK
Figure
12
PRIMING
HOLE
%
BE SURE NIBS
ENGAGE NOTCHES
Figure 13
Installing
Copper
Insert
NOTE:
If the copper
insert
(Key No. 4, Page
12) moves
or shifts
during
seal removal,
it should
be removed
and
reinstalled.
1. Remove
copper
insert
as shown
in Figure 14. do not
deform.
TO DISASSEMBLE
Figure
14
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.
* "Permatex" is a registered trademark of Permatex Co. Inc.

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