Final answer:
After hooking up a trailer, you should check the fifth wheel connection, trailer lights, tire pressure, and cargo load.
Step-by-step explanation:
After hooking up a trailer, there are several things you should check:
- The fifth wheel connection: Ensure that the connection between the truck and the trailer is secure.
- The trailer lights: Confirm that all the lights on the trailer are functioning properly, including the brake lights, turn signals, and taillights.
- The tire pressure: Check the tire pressure of both the truck and trailer tires to ensure they are properly inflated.
- The cargo load: Make sure that the cargo is evenly distributed and securely fastened to prevent any shifting during transit.