The Importance of Boat Trailer Repair

July 7, 2023

When you have a boat trailer, it is important to keep up with maintenance. Otherwise, you may find yourself stranded on the side of the road because of a breakdown.

Wheel bearings (which can be either disc or drum type) should be greased regularly. It helps keep them from becoming rusty.

Wheel Bearings

Wheel bearings are inside the trailer hubs, reducing friction between the wheel and the axle assembly. They need lubrication to function properly. If you do not lubricate them, the bearings will overheat and cause damage.

When lubricating the bearings, pry the dust cap loose with a screwdriver. Next, remove the castle nut from the axle spindle. After removing the dust cap and cotter pin, carefully remove both bearing cages from the inner wheel hub. Clean the bearings and races with solvent or kerosene. After cleaning, dry the parts with a cloth or blower.

Replace the bearing cages and cotter pin. Then, place grease in the bearings. When reinstalling the bearings, apply grease liberally around the entire circumference of each roller. After reinstalling the axle-spindle castle nut, tighten the cotter pin and dust cap. Be careful not to overtighten the castle nut, or you will risk damaging the bearings. Repacking the bearings is typically recommended every 7,500 miles.


Whether your trailer is equipped with drum or disc brakes, they should be flushed and bled yearly. The procedure is relatively simple and can be done in a few minutes. Follow the instructions in your owner’s manual.

A lack of brakes is the number one reason we see boat trailers stranded on the side of the road. Brake lines may need to be replaced, especially if they are exposed or have been contaminated by water. It’s best to have a set of spare brake pads and shoes on hand to replace worn ones as soon as you notice them wearing down.

Wiring can also be a source of problems. It can be eroded and short-circuited by salt water. Wrapping all wires with electrical tape is a good idea to protect them from abrasion and moisture. It’s also good to block the tires and secure them on adequate capacity jack stands when working on your trailer.

Electrical System

Many boat owners overlook the condition of their trailers. But it’s a critical piece of equipment that must withstand the constant weight and strain of transporting your craft to and from water. Regular cleaning, inspection, and service by professional boat trailer repair Pennsylvania will extend the life of your trailer.

The electrical system should be inspected for loose wires and corrosion. Ensure all wiring is approved for marine use and all connections are sealed to prevent moisture from causing shorts or fires. Check connector plug prongs, receptacles, light sockets, and splices to ensure they are secure and corrosion-free. A dab of non-conductive grease can help protect the prongs from corrosion.

Keeping the winch lubricated is important for proper operation and to keep the hookup mechanism smooth. Also, ensure the trailer jack works properly to distribute your boat’s weight and allow easy loading and unloading. And finally, the safety chains should be in good condition to avoid that day-ruining ticket from the police.


Like your car or truck tires, boat trailer tires need regular care and inspections. You want to ensure the tires are rated properly for the trailer, and the treads are in good condition.

You should have a tire pressure reader on hand and check the PSI of your tires frequently (at least before every trip). If you are traveling, this can help prevent tire-related problems that may arise along the way.

Rotating your trailer tires regularly and balancing them is also important. It will ensure that the tires wear evenly and extend their life. If you store your trailer for long periods, it is best to cover it or keep it in a garage so the tires do not experience harsh sun exposure. It can cause flat spots in the tires, which is not safe. In addition, these areas can be corrosive and damage the tires over time.

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