I have a disassembled E12 motor on the bench that was making a funny
noise. Turned out to be the centrifugal switch.
Rob
On Tuesday, October 26, 2021, 02:23:03 PM EDT, Chris Zach via Elec-trak
<elec-trak cosmos phy tufts edu> wrote:
Sounds like the armature is contacting the motor casing. Probably worse
under load but yes bearings.
On October 26, 2021 1:17:50 PM EDT, Paul Anderegg <tpa2008 gmail com
<mailto:tpa2008 gmail com>> wrote:
>E20
>
>On Tue, Oct 26, 2021, 12:17 PM Nick Skinner <kc2dzb nycap rr com
<mailto:kc2dzb nycap rr com>> wrote:
>
>> 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 <mailto:tpa2008 gmail com>>
>> Date: 10/26/21 12:55 PM (GMT-05:00)
>> To: Dean Stuckmann <dstuckmann icloud com
<mailto:dstuckmann icloud com>>
>> Cc: elec-trak cosmos phy tufts edu
<mailto: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
<mailto: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
<mailto: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 <https://youtu.be/DYOYZqdiQik>
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