STEP 3 ELECTRICAL WIRING
(Models with Electric Fan)
Models having a 12 VDC fan motor can be wired two different ways. Listed below are these
options.
OPTION #1 - FAN SWITCH WIRED HOT
This option wires the fan switch so that you can turn the fan on at anytime regardless
of whether the tractor is running or not.
ELECTRICAL CONNECTIONS
RED WIRE:
Connect to the positive (+) 12VDC battery terminal (20 Amps)
through circuit breaker (150153) provided in electrical kit (150525).
BLACK WIRE:
Connect to the truck frame or to the negative (-) battery terminal.
For further illustration follow
DIAGRAM B
on Page 4.
NOTE: We recommend that the power supply be taken directly from a battery
post or similar high current location.
OPTION #2 - FAN SWITCH GROUNDED THROUGH AN AIR SWITCH
This option wires the fan switch so that you will only be able to turn the fan on when
the PTO is engaged. This option will allow you to leave the fan switch “ON” so that
you have an automatic operation of the fan when the PTO is engaged. PTO
disengaged fan “OFF”, PTO engaged fan “ON” via an air switch.
ELECTRICAL CONNECTIONS
RED WIRE:
Connect to the positive (+) 12VDC battery terminal (20 Amps)
through circuit breaker (150153) provided in electrical kit (150525).
BLACK WIRE:
Connect to air switch and frame ground.
For further illustration follow
DIAGRAM C
on Page 5.
NOTE: We recommend that the power supply be taken directly from a battery
post or similar high current location.
INSTALLATION GUIDE , OPERATING PROCEDURES & PARTS BREAKDOWN
PAGE 3
STAC INC
l
ST PAUL MN
l
800-334-7699
