
ELECTRICAL CONNECTIONS
Connect black wire to negative (–) terminal of battery. The
orange wire should run to a properly sized (see electrical
specification) overload protected switch or circuit breaker,
with a wire from switch or breaker to positive (+) terminal
of battery. Electrical circuit must be independent of all
other accessories. Use proper wire size as determined by
wire table elsewhere on this sheet.
Overload
Protected
Distribution
Panel
Orange
+
Black
–
Battery
–
+
Discharge
clockwise
rotation*
Discharge
counter
clockwise
rotation*
Explosion hazard. If pump is operated in an area
containing flammable vapors, wire leads must be
joined by insulated mechanical locking connectors.
Loose or inadequate wire connections can spark
resulting in an explosion. Property damage, injury
or death can occur.
WARNING
!
WIRING DIAGRAM
*Motor rotation viewed from pump end cover
NOTICE:
Failure to use proper size fuse may damage
motor and void warranty.
ELECTRICAL SPECIFICATIONS
Model No.
Voltage
Amp Draw
Fuse Size
18620-0003
12V DC
7
10 Amp
MINIMUM WIRE SIZES
Wire Length
Between Battery
and Motor
Wire Gauge
1-10 ft. (3m)
#14
11-20 ft. (6m)
#10
21-30 ft. (9m)
#10
NOTICE:
To prevent motor damage, use only multi-
strand copper wire in size recommended. DO NOT use
ordinary lamp cord or other substitutes.
OPERATION
Flexible impeller pumps must NOT be run dry, as the
pumped liquid is the lubricant for the impeller. Observe the
outlet and shut off pump as soon as liquid stops flowing.
The pump cannot run against a closed outlet such as
encountered when using a garden hose type shut-off
nozzle.
Temperature of pumped liquid may be in the range of
45° - 160°F (10° - 70°C).
Pressure for normal operation should not exceed 40 feet
of head (17.4 psi).
MAINTENANCE
Check wires and connections to be sure corrosion is not
adding additional resistance to the motor circuit and
causing a low voltage condition at the motor. Low voltage
can inhibit starting and cause fuse to blow. Full voltage
should be available to prevent motor damage.
NOTICE:
If pump is idle for extended periods, the
impeller may stick to the pump body, preventing motor
rotation and causing blown fuses. To correct, remove
end cover and impeller. Clean body and impeller, then
lubricate with water or small amounts of grease before
assembly.
If pump is to be in freezing temperatures, drain by
loosening end cover.
A service kit, or at least a spare impeller, should be
carried aboard to be assured of pumping capability.