Onan 5,500 Generator

[Rich Biebel]

Originally Posted by SGSST109E

The generator is mounted up in the front on the gooseneck. The exhaust pipe comes out the bottom and out to the side of the trailer. He also has the extension to direct the exhaust up past the roof.

The hot air is blown out the bottom same area as the exhaust pipe.

The cooler air is drawn in along the bottom at the front of the machine

If it's running you can feel the suction there and it can pull hot air in if there is nothing to stop it from going that way.

It's very strong suction and can pull paper or a rag up in there. It will suck a rag right out of your hand.....I've had it happen more than once just cleaning under a machine.

I saw one where birds nested up in there and blocked the cool air completely....It was a gooseneck trailer.....The machines engine failed from running to hot.....

Attach some sheet metal to help prevent the hot air from being pulled in......your machine will be a lot happier.....and live longer....I guarantee it...