Sears 390.304550, Owner'S Manual

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NOTICE: Pump will continue to run as long as motor is
directly plugged into outlet; DO NOT RUN PUMP DRY.
Replace switch as soon as possible.
ELECTRICAL CONNECTIONS
Risk of electric shock. This pump is supplied
with a grounding conductor and grounding-type
attachment plug. To reduce the risk of electric shock, be
certain that it is connected only to a properly grounded,
grounding-type receptacle.
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 internal ground.
A separate branch electrical circuit is recommended. 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
4A). 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.
Grounding Outlet
If your outlet is not grounded, install a copper wire (at
least 14 gauge) from the outlet box, as shown in Figure
4B, to a metal cold water pipe. Use ground clamp on
pipe.
IMPORTANT: The cold water pipe you use as a ground
must have metal continuity to electrical ground. If
continuity is interrupted by plastic, rubber, or other
electrical insulators; such as hoses, fittings, washers or
gaskets (including water meter or pump), a metal bypass
must be used. Any electrically insulated connector should
be jumped (as shown in FIgure 4C), with a length of No. 4
wire clamped securely at both ends.
Automatic Thermal Overload Protection
This pump motor has a built-in automatic thermal overload
protector. If the motor overheats, the protector will open
and cut off power to the motor before the heat damages it
internally. The overload will reset automatically and the
pump will restart after the pump cools down below the
danger point.
DO NOT attempt to work on the pump or
motor if the overload seems to have tripped. The motor
may restart without warning at any time. You could be
injured and the pump damaged if it starts when you are
working on it. Remove all power from pump before
attempting to work on it.
DO NOT attempt to repair a non-operational sump pump.
Take it to Sears for service by a qualified technician.
Generator Sizing
Below is the minimum Engine-Generator Watt rating re-
quired to power this pump motor. Any additional loads,
such as lights, must be added to the listed load and the
generator sized accordingly.
Pump Minimum Watt
Model HP Rating of Generator
390.304550 1/4 1000
390.304610 1/3 2200
SERVICE
General
Risk of electric shock. When servicing pump
always disconnect power to electrical outlet and remove
pump electric cord from outlet.
1. If pump does not operate:
a. Check for loose plug at electric outlet.
b. Check for blown fuses or tripped circuit breakers at
fuse box/circuit breaker box.
c. Be sure nothing interferes with action of automatic
float switch.
4
UL Listed
Analyzer
Outlet
Face Plate
Outlet
Outlet
Box
Bare Copper Wire
to Cold Water Pipe
Face
Plate Screw
No. 4
Wire
Clamp
Metal Water Pipe
Meter
Clamp
FIGURE 4A
FIGURE 4B
FIGURE 4C