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Other Notes About Trailer
Wiring:
You can not have too
many grounds! Make sure your ground wire (typically
white) is securely attached to the frame on both the
truck and trailer side, preferably at more than one
location on the frame! The ground wire should be large
enough to handle all the load, do not depend on
grounding through the ball.
Wire Size:
- 16 Ga, 10amps, Lights only
- 14 Ga, 15 amps, Lights and up to 2 axle brakes (4
wheels, max)
- 12 Ga, 20 amps, 3 axle brake wire, typical ground wire
size, also, 12 volt AUX feed
- 10 Ga. 30 amps, for those extreme applications, bigger
trailers or campers with big loads.
Typically if you have 2 or more brake axles, lots of
lights, and use the 12 volt AUX feed to power items, or
charge a battery.... (add up your load, what could items
run at once- example, all lights + brakes)
Remember, Trailers DO NOT have "Brake"
lights, they have only left and right turn. It's just
when they are "on but not flashing", it is assumed to
mean brake light. Still only one light on each side, so
if your turn signals work, but not the brakes lights, it
is your truck, not the trailer.... the "brake light"
works on the trailer, the truck just tells then when to
flash or not.
If your brake lights work, OR your marker lights work,
but everything quits when you turn on both at the same
time, your trailer is not grounded to the truck.
Period. (at night, when you step on the brakes, all
the trailer lights go out) ---see
line one, above
Trailer Plug Maintenance
Put grease on your trailer plug, (just plain damn
grease). That green junk is copper oxide. It happens
when you combine oxygen with copper. All you need is a
thin layer of anything (and grease is cheap and sticky)
to keep the oxygen (from the air or water) from getting
to the copper. The rubber caps just hold the water in...
Still Have More Questions? Email Paul!
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