On my coach, there is an on-board compressor for the for the air ride system and I suppose it supplies the air brakes as well. The line runs through the front compartment where the generator is housed. I disconnected the line and added a "T", a ball valve, and a slip joint connector. I carry a 50' air hose with several attachments. One of them is an air chuck for filling tires.
Before I leave the driveway, I let the motor warm up and allow the air pressure to build. I then check the pressure on the tires and if needed, I fill them from the on-board system. It works very quickly. Rarely have I had to add more than 5-10 lbs.
Everything I have ever read, including the stamp on the tires, the stickers in the coach and on the door jamb of the car state, check air pressure when cold.
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'03 41' Friendship & 24' trailer with HIS '03 H-D Heritage Springer, HER '15 H-D Freewheeler Trike, and '08 Smart Car.
"Adventure is found in the journey, not the destination."
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