The Ford Barn

miff · 03-13-2016, 07:21 PM

My horn will turn with no pressure on the diagram. But when I start to adjust it for the sound. ( a click at a time) when it starts to put pressure ( very little )on the diagram the arbor stops turning . With no pressure it spins fast and free. Any ideas , (it's an Ames horn) Miff

ericr · 03-13-2016, 07:35 PM

have you cleaned the commutator with sandpaper?

heneste · 03-13-2016, 08:10 PM

Also, if it hasn't been lightly oiled it may need the two-three drops on the felt pad

Tom Wesenberg · 03-13-2016, 09:05 PM

I've cleaned commutators with emery cloth while the armature spins. Between that and a few drops of oil on the felts, the horn blows great.

Mike V. Florida · 03-13-2016, 10:40 PM

Yup a good cleaning, inspection of the brushes, movement of the brushes in the holders, and lubing the front and rear of the shaft are in order.

http://modelabasics.com/horn.htm

miff · 03-15-2016, 06:02 PM

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I want to thank you all for your suggestion on my horn. I want to thank Mike v Florida fro sending to horn basics by Payl R Modlin. Followed his problems and solutions . The horn works great . Miff

Chuck Sea/Tac · 03-16-2016, 10:47 AM

That's good it's working. Another maintenance area is the bullet connections and clips not clean enough. I also found a brush not in position correctly, yet still partially working.

03-13-2016, 07:21 PM	#1
miff Senior Member Join Date: Dec 2014 Posts: 138	Horn stops working My horn will turn with no pressure on the diagram. But when I start to adjust it for the sound. ( a click at a time) when it starts to put pressure ( very little )on the diagram the arbor stops turning . With no pressure it spins fast and free. Any ideas , (it's an Ames horn) Miff

03-13-2016, 07:35 PM	#2
ericr Senior Member Join Date: Apr 2012 Posts: 1,542	Re: Horn stops working have you cleaned the commutator with sandpaper?

03-13-2016, 08:10 PM	#3
heneste Senior Member Join Date: Nov 2010 Location: Ottawa,Ontario, Canada Posts: 271	Re: Horn stops working Also, if it hasn't been lightly oiled it may need the two-three drops on the felt pad

03-13-2016, 09:05 PM	#4
Tom Wesenberg Senior Member Join Date: May 2010 Location: Mpls, MN Posts: 27,582	Re: Horn stops working I've cleaned commutators with emery cloth while the armature spins. Between that and a few drops of oil on the felts, the horn blows great.

03-13-2016, 10:40 PM	#5
Mike V. Florida Senior Member Join Date: May 2010 Location: South Florida Posts: 14,054	Re: Horn stops working Yup a good cleaning, inspection of the brushes, movement of the brushes in the holders, and lubing the front and rear of the shaft are in order. http://modelabasics.com/horn.htm __________________ What's right about America is that although we have a mess of problems, we have great capacity - intellect and resources - to do some thing about them. - Henry Ford II

03-15-2016, 06:02 PM	#6
miff Senior Member Join Date: Dec 2014 Posts: 138	Re: Horn stops working Sponsored Links (Register now to hide all advertisements) I want to thank you all for your suggestion on my horn. I want to thank Mike v Florida fro sending to horn basics by Payl R Modlin. Followed his problems and solutions . The horn works great . Miff

03-16-2016, 10:47 AM	#7
Chuck Sea/Tac Senior Member Join Date: May 2010 Location: Between Seattle & Tacoma Posts: 2,354	Re: Horn stops working That's good it's working. Another maintenance area is the bullet connections and clips not clean enough. I also found a brush not in position correctly, yet still partially working.