K-FORCE® 21” & 27”
SpeedTech Lights, Inc © 2018
3
Instructions for Mounting, Wiring and Programming
IMPORTANT! To ensure proper installation installers are required to have a good understanding of automotive electronic, systems and procedures
for proper installation. When you are drilling into the vehicle’s surfaces, ensure that the area is free of any electrical wires, vehicle upholstery, fuel
lines, etc. that could be damaged. All wiring passing through drilled holes should use grommets and silicone sealant to prevent wire or moisture
damage when passing through compartment walls. WARNING! Larger wires and secure or tight connections will ensure longer service life for your
product. It is highly recommended that soldered connections have heat shrink used to protect the connection. Special attention should be given
to the location and method of splicing wiresto make electrical connections to protect these splices from lost power or connection and corrosion.
Insulation displacement connectors are not to be used. To reduce voltage drop, minimize the number of splices in the wires. The current carrying
capacity of wires and fuses will be significantly reduced under high ambient temperature (e.g. under the hood). Use SXL type wire in the engine
compartment where higher heat resistance is required according to SAE J-1128. All wires should be in accordance with the minimum wire size
and other recommendations made by the manufacturer and be protected from hot surfaces and moving parts. Grommets, cable ties, looms, and
other installation hardware should be used to anchor and protect all wiring. Fuses should be properly sized and located as close to the power
take off points as possible to protect the wiring and device. To protect against short circuits, a fuse is included by STL for all products. Do NOT use
a fuse with a higher amp rating than the initial fuse included. Do NOT use Circuit Breaks with STL Products. Ground terminations should only be
made directly to the battery.
Mounting Headache Rack Brackets:
•
Loosen the hardware securing the Foot Bracket to your Light Bar and remove the
Foot Bracket of the Light Bar
•
Use the 2 screws that were securing each Foot Bracket to the Light Bar to attach
the Headache Rack Bracket to the Light Bar using the two vertical cutaways on
the Headache Rack Bracket.
•
This secures the Bracket to the Light Bar.
•
The Headache Rack Bracket may then be directly mounted. Or, by using the sup-
plied secondary piece, you may “sandwich” your back rack with 2 user supplied
nuts and bolts.
Wire Color
Function
Wire Color
Function
*Red
Positive
*Black
Negative
Yellow
Flash Pattern
White
Positive (When bypassing
Grand Control™ Box)
Blue
Alley Steady
Green
Take Down Flashing
*
Indicates a main power
cable
NOTE: All cables (except
Negative) cVDC
