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ELECTRICAL / MAINTENANCE
Grounding Outlet
If your outlet is not grounded, install a copper wire, at least
14 gauge (2mmZ), from the outlet box, as shown in Figure
3B, 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 continu-
ity is interrupted by plastic, rubber, or other electrical insu-
lators; 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 3C), with a length of No. 4 wire clamped securely
at both ends.
Outlet
Figure 3B
No. 4 31amp
Wire
MetalWater
Pipe
Figure 3C
Meter
670 0194
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 dan-
ger point.
[_kWARNING] 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.
DO NOT attempt to repair a non-operational surnp pump.
Take it to Sears for service by a qualified technician.
Generator Sizing
Below is the minimum Engine-Generator Watt rating required
to power this pump motor. Any additional loads, such as lights,
must be added to the listed load and the generator sized ac-
cordingly. Generators are available at all Sears Stores.
Pump Minimum Watt
Model HP Rating of Generator
390.305001 1/2 2800
390.304790 1/3 3400
390.305790 1/2 4200
HAINTENANCE
_Make certain that the pump is unplugged
before attempting to service or remove any compo-
nent.
1. The motor in the unit is sealed in oil. No additional lubri-
cation is necessary.
2. IMPORTANT: Disassembly of the motor assembly will
void the warranty. It might also cause internal leakage and
damage to the unit. If repairs are required, return the
pump to the dealer from whom it was purchased.
3. Inlet screen should be kept clean and free of all foreign
objects.
Pump Cleaning
NOTICE: Attempting to disassemble motor will void the
warranty.
1. Disconnect power cord from electrical outlet before work-
hag on pump. The volute bottom may be removed to re-
place impeller or clean pump of mud or debris.
2. Remove screws from volute bottom and clean impeller.
Replace the gasket/O-Ring if it is damaged.
To Reassemble:
Attach volute bottom to volute top with screws.
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