Pre-Trip Inspection: A Complete Checklist Before Hauling a Trailer

Going on a trip with a trailer can be exciting, whether you’re hauling a project car to a weekend track day or towing a camper into the mountains. However, pulling thousands of pounds of extra weight requires serious preparation. Avoiding a roadside disaster starts in your driveway. Keep the rubber side down and ensure a smooth journey with a systematic pretrip inspection.

Ensure Your Tow Vehicle Is Capable

Inspect the heavy lifter first. Whether you’re using a truck or SUV for pulling, understanding its limits is a must before dropping a trailer onto the hitch.

Towing depends on what the vehicle’s suspension and frame can support. The payload capacity dictates how much weight can be pushed down on the truck bed and hitch. Exceeding limits stresses the engine and sags the rear suspension. Consider the vehicle’s weight as well, as it affects aspects like how much you can haul and how fast you can safely drive.

Inspect the Tires and Brakes Thoroughly

Mechanical failures are a serious safety concern on any road trip, and they matter even more when you’re towing extra weight. In one analysis of crashes involving vehicle defects, brake failure accounted for 42.02% of incidents, tire blowouts for 22.41% and improper tread depth for 10.81%. Adding the following tasks to your inspection checklist can help you avoid these accidents:

• Check the tire pressure: Do it when the tires are cold to get an accurate reading.
• Assess the tread depth: Use a gauge or the classic penny test to determine each tire’s tread.
• Inspect the sidewalls: Look for age-related dry rot, abrasions, bulges, cuts and cracks.
• Perform a low-speed squeeze test: Use the manual slide on the electronic trailer brake controller to ensure brakes are engaging firmly and evenly without locking up.

Test the Hitch and Safety Connections

The connection point between the vehicle and the trailer is the lifeline of the entire setup. Test and verify every locking mechanism and electrical link before pulling out of the driveway.

• Seat the coupler fully over the ball: Snap the latch shut and insert a locking pin or padlock so a rough bump can’t pop it open.
• Cross the safety chains in an “X” pattern under the tongue: If the coupler fails, that crossed pattern creates a cradle to catch the tongue, preventing it from digging into the pavement.
• Check the 7-pin connector: Plug in the electrical harness and ask a friend to stand behind the trailer. Test the running lights, left and right turn signals, and brake lights.
• Attach the emergency breakaway cable to the truck’s frame or hitch receiver: If catastrophic separation happens, this cable pulls the pin and locks the trailer’s onboard brakes.

Prepare the RV Plumbing for Extreme Weather

If your haul involves a motorhome or a travel trailer, check the internal systems, especially if you’re heading into high altitudes or cold climates where temperatures can plunge overnight.

• Drain and flush the RV’s main water holding tanks: Open all interior faucets and the showerhead to ensure gravity pulls the remaining water out of the lines.
• Empty the water heater: Turn off the heater, wait for the water to cool and pull the drain plug.
• Winterize the lines: Replace the standard water with marine or RV antifreeze. Most RVs require around 3 gallons of antifreeze, but double-check your manual to be sure.

Secure Your Cargo Properly

Preventing highway accidents comes down to utilizing the right tie-down equipment. Throwing a single bungee cord over a heavy load and hoping for the best will not cut it.

• Ditch the bungee cords: Use heavy-duty ratchet straps, grade-70 transport chains and proper loading binders. Secure all four corners of heavy cargo independently to the trailer’s D-rings or stake pockets.
• Check the friction points: Determine where the straps run over the cargo’s edges, as sharp metal can slice through a nylon strap vibrating in the wind. Use edge protectors or thick padding.
• Follow the law: All 50 states have laws concerning unsecured loads. Violations can mean fines of up to $5,000 and other state-specific penalties.

Hit the Road With Confidence

A thorough walk-around covering your vehicle’s weight, hitch connection, tire pressure and cargo straps is a smart insurance policy. As an extra measure, you can also make the five-minute rule a habit on the road. Every time you stop for gas or food, do a quick lap around the rig to check the coupler and touch the wheel hubs to ensure they’re not overheating. With the right prep work finished, you’re set for a smooth, safe and exciting trip.