[GreenKeys] My spare motor for Model 15
UEOGUY
ueoguy at yahoo.com
Sat Jun 7 16:59:51 EDT 2008
I agree, it's the same as my M15's motor, the only thing is that the fan should be
moved away from the motor and be flush with the shaft end. Just make sure you
hold the motor to the table, as it will "jump" when power is supplied. I'd use insulated
gloves, or clamp it to your work bench, before testing. The gloves are just in case
it has a winding short to the frame, and if your worried about stuff like that, use a
ground fault circuit to minimize damage to all involved!
Good Luck!
Just Bob!
----- Original Message ----
> From: Jim Haynes <jhhaynes at earthlink.net>
> To: Derek Cohn/WB0TUA <vibroplex at mindspring.com>
> Cc: Greenkeys ((E-mail)) <greenkeys at mailman.qth.net>
> Sent: Saturday, June 7, 2008 4:50:58 PM
> Subject: Re: [GreenKeys] My spare motor for Model 15
>
> That is the correct motor, and it should be OK to plug it in momentarily.
>
> Now, that said, if it is sparking continuously there is something wrong,
> as that motor does not have a commutator and brushes. It says on the
> name plate that it is a synchronous motor.
>
> What it has is a centrifugal switch that disconnects the starting winding
> when the motor comes up to speed. If that is sparking continuously,
> failing to open cleanly, then it is in danger of burning up the motor.
> So there is a need to open it up and clean and lube the centrifugal
> switch. After that it might make a burst of radio noise when first
> started, but after that it should not spark nor cause any radio noise.
>
>
>
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