6
Theory of Operation
The ON/OFF switch only has one speed. Turn the switch
ON and the pump motor turns on full spraying speed. Turn
the switch OFF and the motor turns off and the unit stops
spraying. Since the units spraying speed is not variable,
its best to only use the system when the spreader's auger
speed is at or near it's max.
On/Off Motor Controller Operation
The pump is protected by a 20 amp fuse installed in the
wiring system near the vehicle battery.
Start:
When the ON side of the switch is selected, current will be
directed to the SWS pump motor. When the OFF side of
the switch is selected, current to the system end.
IMPORTANT:
If ignition switch is turned off at any
time during operation the pump will not stop
running. This can drain the battery power and
destroy the SWS pump if left running for hours.
Wiring Schematics
An On/Off Control system schematic diagram is located in
your SWS Installation & Owner’s Manual.
CAUTION
The controller input voltage must be a minimum
of 11 volts DC for proper operation. Be sure the
vehicle battery and alternator are in good
operating condition and adequate to provide 11
volts DC to the controller.
OPERATION
