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MAINTENANCE
NOTICE:
DO not overtighten;
you may twist studs off of
tank. If you have a torque
wrench,
tighten
to 85 inch-
pounds
torque.
18. Stand tank on feet and reconnect
piping.
19. Recharge
tank to proper
air pressure
(see Page 5).
20. Reconnect
hoses and pressure
switch
tube; prime pump
(see Page 6).
Air Valve Replacement
1. Follow
steps
1 through
5 under _Vinyl Bag Removal",
Page 7.
2. Cut valve off as close to tank as possible.
Push remaining
portion
back into tank.
3. Tip tank on end and BE SURE all water
is drained
from
bag.
4. Carefully
remove
bag ring from lip on tank opening
and
push bag ring back into tank; reach
in around
it and re-
move cut off portion
of valve from tank.
5. Wipe a thin film of soapy solution
on replacement
valve
and from inside tank insert in hole in top of tank.
6. Pull valve through
hole with pliers or a valve tool (avail-
able at your local filling station
or Automotive
Center).
7. Follow steps 14 through
20 under
"Vinyl Bag Removal",
Page 7, to reinstall
bag in tank.
Testing
for Bag Leakage
1. Follow
steps
1 through
4 under
"Vinyl Bag Removal",
Page 7.
2. Tip tank on end,
vane
down.
Be careful
not to break
valve!
3. If bag leaks, water will run out of valve. If so, replace
bag
as instructed
above.
DISASSEMBLY
AND
ASSEMBLY
OF PUMP
I_.WARNING JRtsk
of electric
shock.
Ground
unit
and
I
disconnect
power
before
attempting
any
work
on
pomp
or motor.
Your Sears pump
is designed
for ease in servicing.
Should
repair
or replacement
of the motor or seal be needed,
the
pump
and piping
do not need
to be disconnected
or dis-
tuthed.
1. Disassemble
pump
as follows:
A. Disconnect
power.
B. Drain pump
by opening
drain cock. Remove pressure
switch
tubing
from fitting
on top of pump.
_WARNING]To
avoid
serious
injory,release
all
pressure
fi'om system
before
attempting
to remove
clamp
from
pump.
C. Remove
clamp,
Key No. 10, Page 12.
D. Remove
pump
base motmting
bolts. Motor assembly
and back half assembly
of pump
can he pulled away
from front half.
E. Remove
"O" rings.
2. Reassembly
of pump.
A. Clean =O" rings and "O" ring grooves.
B. Lubricate
=O" rings with petroleum
jelly, and place in
grooves.
C. Slide pump
halves together.
D. Clean
inside
of clamp.
Place
clamp
around
pump
halves. Alternately
tighten clamp screw and tap clamp
around
outside
with
plastic
mallet.
This will insure
proper
seating of "O" ring and clamp.
E. Assemble
base
mounting
bolts.
Connect
pressure
switch
tubing and close drain cock.
F. Prime pump
and turn on power.
G. Check
for leaks.
Removing
Motor
for Service
and Replacing Shaft Seal
If it is he4:_ essary to separate
motor
and seal plate,
always re-
place
the shaft
seal. We suggest
you purchase
this item,
UlO94SA, and have it on hand
for future
use.
NOTICE:
The seal consists
of two parts, a rotating
member
and a ceramic
seat. The surfaces
of the seal are easily dam-
aged. Read instructions
carefully.
1. Disassemble
pump
per instructions
above.
2. Remove
diffuser and impeller
as follows (Key Nos. 8 and
9, Page 12).
A. Remove
screws
holding
diffuser.
B. Loosen two screws
and remove
motor
canopy
from
motor.
C. Place 7/16" open
end wrench
on motor shaft flat.
D. Turn impeller
counterclockwise
when
facing it.
3. Remove
pump back half from motor by unscrewing
four
(4) nuts.
Pry back half off motor
by inserting
two (2)
screwdrivers
between
the back pump half and the motor
flange. This will force rotating
portion
of seal off shaft.
See Figure 5.
Figure 5
4750194
8
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