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SERVICE
MAINTAINING
YOUR
PUMP
Lubrication
It is not necessary
to lubricate
the pump
or its motor.
The motor
bearings
are lubricated
for life. The mechanical
shaft
seal in the
pump
is water
lubricated
and self-adjusting.
Draining
for Winter
When
the pump
is to be disconnected
from
service,
or is in dan-
ger of freezing,
it must
be drained.
The
pump
has a dmincock
which
must
be opened.
Remove
the
priming
plug
to vent
the
pump.
Drain the
pressure
tank. Drain
all piping
to a point
below
the freezing
hne.
To drain an air volume
control
(AVC), remove
the tubing
Turn
the
AVC upside
down.
This will permit
any water
to drain
into tank.
Disassembly
and Assembly
of Pump
The Hydroglass
®Pump
is designed
for ease in servicing
and main-
tenance.
1.
Disassemble
pump
as follows:
A Disconnect
power.
B. Open
faucet
to relieve
pressure.
C. Drain pump
by opening
draincock.
Remove
pressure
switch
mWmg from
fitting on top of pump.
D. Remove
damp,
Key No. 10, Page
11.
E. Remove
pump
base
mounting
bolts.
Motor
assembly
and
back
half assembly
of pump
can be pulled
away from
front
haft.
F. 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
out-
side with
plastic
mallet.
This will insure
proper
seating
of
O-Ring and clamp.
E. Assemble
base mounting
bolts.
Connect
pressure
switch
tub-
ing and close
draincock.
F. Prime pump
and turn on power.
REMOVING
MOTOR
FOR SERVICE AND
REPLACING
SHAFT
SEAL
flit is necessary
to remove
motor,
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.
7 and 8,
Page
11).
A. Remove
screws
holding
diffuser.
B. Loosen
two screws
and remove
motor
canopy.
C. if motor
has capacitor,
partially
unscrew
capacitor
clamp and
move
capacitor
to one side.
i
1
! _ikWARNINQ ] Risk
of electrical
shock.
Do not touch ca-
pacitor
terminals
with
body" or any metal
object.
D. Hold motor
shaft with
a 7/16" wrench
on the shaft flats.
E. 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
haft and the motor
flange.
This will
force
rotating
portion
of seal off shafx. See Figure 10.
Figure
I 0
4750194
4. Place back half of pump
on flat surface
and tap out ceramic
seat.
See Figure 11.
5. Clean
seal cavity.
6. Install
new seal.
A. Clean polished
surface
of ceramic
seat with clean cloth.
B. Wet outer
edge of O-Ring with detergent
solution.
8
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