Quick Answers: It varies based on your trailer and the amount of weight you are hauling.
Shocker Air Receiver Hitch: Add air pressure until the hitch frame touches the front bump cushion and compresses it up to 1/8″. If you add weight to trailer, just add air.
Shocker Gooseneck Air Hitch: See below.
Shocker Air Trailer Tongue Mount: Add air pressure until the bump cushion is compressed 1/8″. If you add weight to trailer, you will need to add air.
How much air pressure do I need for my Bumper mount Shocker Air Hitch?
Answer: The air valve is on the left side of the hitch. Add air until the hitch frame touches the top front bump cushion (the bump cushion closest to your bumper). That’s it. If you are towing a heavier or lighter trailer, just add or remove air.
How much air pressure do I need for my Shocker Gooseneck Air Hitch?
Answer: If you have a light horse trailer it might be as low as 15 lbs of air pressure. If you’re hauling a gooseneck trailer with a skid steer, you might be around 20 lbs of air pressure. If you’re an industrial hauler with 25,000 lbs you may be 25-35 lbs of pressure. Play with the air a little, it will tell you what it likes.
How much air do I need for my Shocker Trailer Tongue Air Hitch?
Answer: Add enough air so it lightly compresses the top bushing bump stop to where it is compress about 1/8″