To prolong the life of your kayak trailer, you need to take good care of it. The easiest way to do so is to precisely follow the instructions on how to use it and not exceed the weight it can handle. While at the beginning you might not notice any damages, your kayak trailer will start deteriorating sooner or later.
Besides using it as intended, you should examine your kayak trailer for signs of wear and tear after every kayaking trip. When you observe deep wrinkles in the metal parts of the equipment or spot any damage to its wheels, it is time to repair your trailer or get a new one (if your budget allows). Familiarize yourself with the warranty you get from the manufacturer and resolve the issue before you embark on your next kayaking adventure.