17
• the breakaway switch is connected to the
tow vehicle
• the trailer lights are connected
The following parts are involved in making a secure coupling
between the trailer and the tow vehicle:
Coupler*: A device on the tongue of the trailer, that makes the connec-
tion to the hitch on the tow vehicle.
*Note Coupler Size: All 2,000 lb. GVWR trailers use a 1 7/8” Coupler.
All 2,990 lb. GVWR trailers use a 2” Coupler. All 7,000lb - 14,000 lb.
GVWR trailers use a 2 5/16” Coupler.
Hitch: A device on the tow vehicle, to which the coupler of the trailer is
attached. The hitch also supports the weight of the trailer tongue.
Safety Chains: They keep the trailer attached to the tow vehicle in
case the coupler connection comes loose. In order to be effective,
safety chains must be properly rigged to pull the trailer in case the
coupler comes loose from the hitch. With proper rigging, it is possible
to keep the tongue of the trailer from digging into the pavement, even
if the coupler to hitch connection comes apart.
Trailer Lighting Connector: A device that connects electrical power
from the tow vehicle to the trailer. This connector operates the brakes,
brake lights, running lights, and turn signals as required.
Breakaway Switch: A device that activates emergency electrical
brakes on the trailer in case the coupler connection comes loose. In
order to be effective, the breakaway switch must be rigged to the tow
vehicle with the correct amount of slack. This will allow switch activa-
tion if the coupler connection comes loose.
Jack: A device on the trailer that is used to raise and lower the tongue
(front) of the trailer. Sometimes called the “landing gear”.
>>>
Ball Hitch Coupler
Couple the trailer to the tow vehicle:
• Using the trailer jack, lower the trailer until the coupler fully engages
the hitch ball. If the coupler does not line up with the hitch ball,
Preparing to Tow
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