Paul, which tractor model is this? Some have a centrifugal switch, which this may be. Otherwise, I'd suspect bearings.

Nick

-------- Original message --------

From: Paul Anderegg <tpa2008@gmail.com>

Date: 10/26/21 12:55 PM (GMT-05:00)

To: Dean Stuckmann <dstuckmann@icloud.com>

Cc: elec-trak@cosmos.phy.tufts.edu

Subject: Re: (ET) Strange sound from motor

I pulled the belts off. Motor spins freely. When I spin it by hand it's
silent. When I apply the throttle then it starts making a screeching sound
again without the belts on.

On Tue, Oct 26, 2021, 11:24 AM Dean Stuckmann <dstuckmann@icloud.com> wrote:

> I would start by making sure that it is the motor by taking the belts off
> and running the motor by itself. I assume that the motor spins freely?
>
> Take care,
> Dean
>
> > On Oct 26, 2021, at 10:40 AM, Paul Anderegg <tpa2008@gmail.com> wrote:
> >
> > I get a strange sound coming from the motor. It usually starts after it
> > runs for a couple of seconds. I posted a YouTube video of it. The sound
> > starts at about six seconds into the video. I have included the link
> below.
> >
> > https://youtu.be/DYOYZqdiQik
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