Electric Air Horns

[Paul-Roni]

I have a 2005 Dolphin LX 6355 motorhome. The electric air horns on the roof were not working. I took them apart and cleaned the diaphragms. Now I can not remember which way the diaphragms go back into the horn. The diaphragm consists of a thin piece of metal with I think is a round metal thing on it. Does the round metal thing face the front of the motorhome or towards the back.

[JohnRR]

I hate doing something like this, good luck with it.

[GREGORYJ]

I had mine apart for the same reason 2 years ago and I believe only the flat side of the diaphragm faces forward. On mine the gaskets on each side of the diaphragm fell out in pieces so replaced them by cutting out new ones from a sheet of gasket material. Also, when assembled, they sounded weak. The diaphragm is vibrated by a coil which has an adjustment screw on each horn to set the space between the coil & diaphragm. I took an ATV 12v. battery up to the 2 horns on the roof and. While powering each horn, I tuned each horn with the adjustment screw for maximum sound. They sounded much louder after adjusting. I applied loctite to the adjustment screws & re-assembled. They have worked fine since which has been 20K miles of traveling.

[Paul-Roni]

Thank you for the responses. The gaskets on my horns fell apart also when I took the horns apart. I also had to cut new gaskets from gasket material. I will check my horns to make sure I have the diaphragm in the correct way.

[Scooter]

Did you fix them ?