Table of Contents
Advertisement
INSTALLATION
/ OPERATION
/ ELECTRICAL
PUMP INSTALLATION
Set the pump
on the bottom
of the sump,
making
sure that
it sits solidly
and
is level.
Be sure
there
is enough
space
around the punlp
to allow the switch
frec mo_ cnlcnt ;is the
stimp water
level changes.
Du Rot iitstall the ptimp
on
clay,
earth,
or sand surlTace.
i
I_" CAUTION IRisk
.
I
of flooding.
If a flexible
discharge
hose
is used,
pump
may move
around
in sump
when
niotor
starts.
If it moves far enough
so that tile switch
hits
the side
of the sump,
the switch
may stick
and
prevent
pump
from starting.
Make sure that pump
is secured
so that
it cannot
walk arotmd
in sump.
Hose
Kit No. 27909
can be used as the discharge
pipe. Run
the discharge
pipe to the nearest
sewer outlet
or other
point
of disposal.
Use the most direct
route
and the fewest
turns
and elbows
possible.
Use Teflon
tape to seal threads
in plastic pipe. Hand tighten
only.
NOTE:
To avoid backflow
into sump when
pump
shuts off,
install a Check
Valve, SEARS Stock No. 2789, in threaded
dis-
charge
port of pump.
A SEARS No. 2789 Check
Valve is con-
structed
with an anti-aiflock
hole. If you use a SEARS No. 2792
or any other check valve, drill a 1/8" hole in the discharge
pipe
just above
the pump
discharge
port and below
the Check
Valve to prevent
pump
from airlocking.
Make sure the air-bleed
hole is down inside the sump so that
it does not run water
on the basement
floor when
the pump
is mnning.
AUTOMATIC
FLOAT SWITCH
INSTALLATION
AND OPERATION
Your SEARS Model 390.305001
Submersible
Drainer
comes
with the automatic
float switch
mounted
on the motor hous-
ing ready
for operation.
Tether
length
is factory
set at 3"
(76mm).
Do not change
tether
length.
See Page 6 for verti-
cal float switch
instructions.
IAWARNING_ Risk of electric
shock.
Always
disconnect
the pump
and
switch
from
the electrical
power
source
before
doing
any
maintenance!
Follow
instructions
below
to install
pump
with
factory
mounted
switch:
1. Be sure automatic
float can swing freely through
its entire
arc without
interference
from pump,
piping,
sump
wall
or any other
object.
2. Plug the automatic
switch
cord into a properly
grounded
outlet
(see "Electrical
Connections",
Page 4). Plug the
pump
power
cord into the back of the
switch
plug.
3. Test the installation
by adding water to the sump pit until
pump
operates
normally
as follows:
A.When
sump
is dry, the
watertight
automatic
float
switch
is hanging
in a downward
position
and
the
pump
is off.
B. As water
comes
into
the sump,
tile auton/atic
float
switch
rises to an upward
position
and the pump
starts.
(7. Water will contint_e to be pumped
until the float switch
is
hanging
ill
the
dox_nward
position
agaiit,
when
pump
will stop.
DO NOT ALLOW PUMP TO RUN DRY!
Be sure
to leave
at least
5" (127mm)
of water
above
pump
base
plate
when
pump
stops.
Running
pump
dry could
ruin
the pump
and
will void
the warranty.
Figure
2
Switch tether is factor), set at 3" (76mm).
NOTICE:
Do not change tether length.
ELECTRICAL
CONNECTIONS
The Sump Pump has a 3-prong
electric
plug. The third prong
is used to ground
the pump
to prevent
possible
fatal shock.
The third
prong
should
never
be removed.
Your electrical
outlet
should
be the 3-prong,
polarized
type with an inter-
nal ground.
An individual
branch
15 amp electrical
circuit
is recom-
mended.
DO NOT USE AN EXTENSION
CORD.
Testing
for Ground
For your
safety,
check
your outlet
for ground
using
an
Underwriters
Laboratory
Listed Circuit Analyzer
(Figure
3A).
A Circuit
Analyzer
will tell you by a pattern
of lights if the
power,
neutral,
and ground
wires are correctly
connected
to your outlet.
It can also be used to check
other
outlets
in
your
home.
A Circuit
Analyzer
is available
in the Sears
Electrical
Department.
UL Listed
[_
Figure
3A
665 0194
4
Advertisement
Table of Contents
