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ELECTRICAL INSTALLATION — VEHICLE SIDE
CAUTION
Before drilling any holes, check the selected
area for wires, hoses, or other obstructions.
1. With the large plug on the electrical harness
placed near the tow hook, under the bumper, route
the harness over the driver-side fender well and
to the fi re wall. Insert the connector end of the
harness through an existing hole in the fi re wall
and into the vehicle cab. If an access hole does
not exist, drill an appropriately sized hole through
the fi re wall in a convenient location away from
sharp edges and hot or moving parts.
NOTE: Keep the snowplow plug and vehicle
connector pins lubricated with a liberal amount of
dielectric grease. Always replace the protective
weather caps when the snowplow is disconnected
from the vehicle.
2. Attach the power contactor (solenoid) to the
driver-side wheel well or engine fan guard using
#12 x 3/4" self-drilling screws.
NOTE: Some model vehicles provide mounting
locations for accessory components.
Always mount the solenoid with the terminals
facing up, for extended solenoid life. Connect
the 24" black ground wire to either small terminal
on the solenoid and attach the opposite end
to the vehicle with a self-drilling screw. Cut the
brown/white pump activation wire on the harness
to length. Strip the end of the harness and crimp
Lit. No. 68251, Rev. 09
NOTE: Do not fasten the harness to areas that
come in contact with moving engine parts or
become extremely hot. The harness could
become tangled and/or melt, causing electrical
failure and vehicle damage.
3. Connect the vehicle harness ground wire to the
NOTE: The harness should be secured to
the vehicle prior to taking the necessary
measurement.
4. Strip both ends of the remaining length of red
5. Position the main lighting harness with both
6. Plug the headlamp ground/relay connector from
Large
Terminals
Small
Terminals
24
the eyelet terminal onto it. Attach the eyelet to the
remaining small terminal on the contactor. Secure
it with the hardware provided on the solenoid.
NEGATIVE (–) terminal on the vehicle's battery.
Cut the plain wire to length and strip the end of
the wire. Crimp and solder a 3/8" ring terminal
on the wire.
Measure the distance needed for the power wire
to reach the solenoid. Strip the wire, then crimp
and solder an end ring terminal to it. Connect the
power wire to either large terminal on the solenoid.
wire, then attach and solder an end ring terminal
to both. Connect one end of the wire to the open
terminal on the solenoid and the remaining end to
the POSITIVE (+) terminal on the battery.
of the truck headlamp connectors near each
truck headlamp and the snowplow headlamp
connectors near the grille of the vehicle.
the vehicle harness into the connector on the
main lighting harness. Securely mount the relay
receptacles to the vehicle with the terminal wires
facing down and the relays facing up. Installing the
relays in this position will allow moisture to drain
from the relay.
May 1, 2021
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