Bri-Mar DT508LP, Owner'S Manual, Page: 61 / 146

Coupling To The Tow Vehicle
Bri-Mar 55
•
Gooseneck Ball Coupler or King Pin
If the coupler on your trailer does not resemble one of the couplers
shown in the figures, see the separate coupler instructions. If you do not
have separate coupler instructions, call Bri-Mar Manufacturing LLC at 1-
800-732-5845 for a free copy.
4.2.2 Trailer with Ball-Hitch Coupler
A ball hitch coupler connects to a ball that is located on or under the rear
bumper of tow vehicle. See figure 4-2. This system of coupling a trailer
to a tow vehicle is sometimes referred to as “bumper pull.”
The tongue jack is mounted to the A-frame (front, or tongue) part of the
trailer. By rotating the jack handle clockwise, the jack will extend and
raise the tongue of the trailer.
Figure 4-2 – Trailer With Ball Hitch Coupler
Your trailer may be equipped with a Hydraulic Surge Brake system. See
figure 4-3. Surge braking is accomplished by replacing a trailer's
standard tongue coupler with an actuator and adding hydraulic brake
assemblies. The "surge" or "push" of the trailer toward the tow vehicle
during deceleration automatically synchronizes these trailer brakes with
Trailers