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Knowledge You Can Build On — Est. 1998

Delta Midi Motor problems

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Delta Midi Motor problems

#1

Delta Midi Motor problems

Ryan McMullen - Memphis

>While turning last night I started experiencing some start up problems with my Midi lathe. When I would turn the power on the lathe would just sit there, I could hear a humming sound from the motor and I could see the spindle "rock" back and forth, as if the motor was trying to start. I would give a quick turn on the hand wheel and the motor would spin up, only to repeat the process the next time I turned the lathe off.

At first I thought that some acrylic shavings (I was turning an acrylic pen when this happened) somehow managed to get into the motor and bind on something. Then I started thinking it could be something with the starting mechanisim of the motor itself.

Any ideas? I'm really tired of dealing with Delta motors. Last December the motor in my Delta TS died (model 36-600, so it's a direct drive motor - I'm never purchasing one of those again) and now this, ugh!

Ryan

Re: Delta Midi Motor problems

#2

Sounds like a bad capacitor

John Trant (Baltimore/DC area)

>

Re: Delta Midi Motor problems

#3

Re: Sounds like a bad capacitor

John Lucas

>I would agree. It is probably the start capacitor usually mounted on the outside of the motor. There easy to replace just don't touch the lead unless you like hopping around and slinging your hand like something bit you.

Re: Delta Midi Motor problems

#4

UPDATE: Delta Midi Motor problems

Ryan McMullen

>Well, I found a replacement capacitor that had the same, exact specs as the old one (and at 1/3 the price of Delta). Got it in, hooked it up, and it went out :(

So, now, if the capacitor was the same specs then would that mean that something in the motor is has gone bad? would there be anyway to check?

Thanks for any help.

Ryan

Re: Delta Midi Motor problems

#5

Re: UPDATE: Delta Midi Motor problems

Ed Thomas, Leaside (Toronto) Ontario

>Is the start winding switch working properly?

Re: Delta Midi Motor problems

#6

Re: UPDATE: Delta Midi Motor problems

Ryan McMullen

>How can I tell? The motor will start up just fine, but, then the new capacitor started to smoke, like it was on fire, and it was hot. Almost like too much voltage?

Good grief I'm beginning to really dislike Delta equipment.

Ryan

Re: Delta Midi Motor problems

#7

Re: UPDATE: Delta Midi Motor problems

Ryan McMullen

>OK, I just took a volt meter to the capacitor leads. When the motor tries to start it's at 110VAC. If I give the hand wheel a spin and get the motor going, the voltage goes to 218 - 225VAC.

That appears to be within the range of the capacitor?

Ryan

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