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MAINTENANCE
Air Valve Replacement
1. Follow
steps
1 through
5 under
"Vinyl Bag Replacement",
Page 7.
2.
Cut valve off as close to tank as possible.
Push
remaining
por-
tion back
into tank.
3.
Tip tank on end and BE SURE al! water
is drained
from
bag.
4.
Ca_efially remove
bag ring from lip on tank opening
and push
bag ring back into tank; reach
in mound
it and remove
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 rank.
6.
Pull valve through
hole with pliers
or a valve tool (available
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
_VinyI Bag Replacement",
Page 7.
2. Tip tank on end, valve down.
Be careful
not to break
valve!
3. If bag leaks, water
will run out of valve. If so, replace
bag as in-
structed
above.
DISASSEMBLY
AND
ASSEMBLY
OF PUMP
{_,_WARNING]
Risk
of electrical
shock.
Be sure unit is grounded
and power
disconnected
before
attempting
any work
on pump
or
motor.
Your pump
is designed
for ease in servicing.
Should
repair
or re-
placement
of the motor
or seal be needed,
the pump
and piping
do not need
to be disconnected
or disturbed.
1.
Disassemble
pump
as follows:
A. Disconnect
power.
B. Remove
pressure
switch
tube from
pump
body
and aflow
pump
to drain.
C. Remove
four hexnuts
and lockwashers
(Key
Nos. 24 and
23, Page 12) which
hold the pump
body
to the motor.
D. Remove
motor,
seal plate, impeller,
rubber
pad and diffuser
(Key Nos. 1, 3, 7, 8 and 9, Page 12) as a unit.
You may have
to pry
gently
with
two screwdrivers
between
the motor
flange
and the pump
body to separate
pump
and motor.
2.
Reassembly
of pump:
A. Install
O-Ring
gasket
on seal plate
(Key
Nos.
5 and
3,
Page 12).
B. Pick up a small amount
of petroleum
jelly on one finger and
spread
eveniy
over seal plate
and venturi
O-Ring gasket for
lubrication
during
reassembly.
Be careful
not to nick or
tear O-Ring.
C. Replace
motor
onto
pump
body;
be sure rubber
pad (Key
No. 8, Page 12) stays in place
on top of diffuser.
Remount
base on lower studs.
Tighten
four hexnuts
and lockwashers
snugly (35-45
inch-lbs,
torque).
Do not overtighten.
D. Replace
pressure
switch
tubing
and motor
wiring.
E. Prime pump
according
to instructions
above.
F. Check
for leaks.
Removing
Motor
for Service
and Replacing
Shaft
Seal
If it is necessary
to separate
motor
and seal plate,
always
replace
the shaft
seal.
We suggest
you purchase
this item,
U109_6A,
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 damaged.
Read in-
structions
carefully.
Remove
motor
as follows:
1.
Disassemble
pump
per instructions
above.
2.
Remove
diffuser
and impeller
as follows
(Key Nos. 9 and 7,
Page 12).
A. Remove
screws
holding
diffuser.
B. Loosen
two
screws
and remove
motor canopy
from motor
(Key No. 1, Page
12).
C. Place 7/16"
open
end wrench
on motor
shafx flat.
D. Turn
impeller
cotmterclockwise
when
facing
it.
8
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