Proper Hitch Hookup
Many towing problems can be traced to the area around the hitch. Avoid disasters by following a few trailer-hitching ground rules for a tow vehicle.
Wiring/Connector
This is the area that causes trailer users the most heartache. Make sure the plug and receptacle are in good shape and the plug stays put while on the road. Wiring must be routed to avoid dragging or snagging on the safety chains. Also, the wiring must be long enough so that it's not put in tension when turning sharply.
Safety Chains
Connect safety chains properly by crossing them under the trailer's tongue and fastening them to the tow-vehicle chassis or hitch receiver using positive-latching devices rather than "S" hooks, so they can't bounce loose. Leave enough slack so the chains don't become tight when turning sharply, but avoid leaving too much slack as the chains will drag. Remember, chains are there in case of a hitch failure, which could be a violent episode should it occur, so be sure the chains are heavy-duty.
Breakaway Switch/Cable
In the event your trailer becomes decoupled from the tow vehicle, most state laws require a breakaway device (either electric or mechanical) to apply the trailer brakes, helping to stop the wayward unit.
Tongue Jack
This one may seem simple, but we've seen trailers going down the road with the tongue jack dragging. Secure it in place to ensure this doesn't happen.
Hitch/Receiver
There are several things to do to ensure a trailer stays attached to the tow vehicle. Use the proper-size ball for the hitch (most balls and couplers have the size stamped into them). Make sure the ball is tight and lube it often to avoid binding. If the hitch coupler has a hydraulic brake unit built in, make sure there's plenty of brake fluid in the reservoir. It's a good idea to use a bolt or other device to secure the latch to keep it from coming open en route.
Sway Controls
Sway controls can lessen the effects of sudden maneuvers, wind gusts, and buffeting caused by other vehicles. Think of them as shock absorbers for your trailer hitch. They're ideal for units with large surface areas, such as travel trailers. Adjustable friction models can control trailers with low tongue weights.