Buick 1993 Century Owner's Manual page 180

hitch. If you
don't seal them, deadly carbon monoxide
(CO) from your .exhaust can get into your vehicle
(see
"Carbon Monoxide" in the Index).
D i r t
and water can,
too.
hitches. Do not attach rental hitches or other bumper-
type hitches to them. Use only a frame-mounted hitch
that does
not
attach to the bumper.
The bumpers on your vehicle are not intended for
Safety
Chains
You should always attach chains between your vehicle
and your trailer. Cross the safety chains under the tongue
of
the trailer
so
that the tongue will not drop to the road
if it becomes separated from the hitch. Instructions about
safety chains may be provided by the hikh manufacturer
or by the trailer manufacturer. Follow the manufacturer's
recommendation for attaching safety chains. Always leave
just enough slack so you can turn with your rig. And,
never allow safety chains to drag on the ground.
M e r Brakes
Does your trailer have its own brakes? Be sure to read
and follow the instructions for the trailer brakes
so
you'll
be able to install, adjust and maintain them properly.
Don't tap into your vehicle's brake system if the trailer's
brake system will use more than 0.02 cubic inch
(0.3 cc) of fluid from your vehicle's master cylinder. If
it does, both braking systems won't work well. You
could even lose your brakes.
Will the trailer brake parts take 3,000 psi (20 650 kPa)
of pressure? If not, the trailer brake system must not be
used with
your vehicle.
If everything checks out this far, then make the brake
fluid tap at the upper rear master cylinder port. But
don't use copper tubing for this. If you do, it
will
bend
and finally break off. Use steel brake tubing.
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