What's wrong with my lathe motor
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What's wrong with my lathe motor
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Topic: What's wrong with my lathe motor (Read 1055 times))
jackssmirkingrevenge
Sharp Shooter
Posts: 758
yes
Real Name: Jack
Re: What's wrong with my lathe motor
«
Reply #20 on:
November 10, 2022, 09:42:13 AM »
Something to keep in mind for next time. I found this handy image
here
:
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QC
"You have to make many weapons, because this field is long and short life"
KWK
Sharp Shooter
Posts: 590
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Real Name: Karl
Re: What's wrong with my lathe motor
«
Reply #21 on:
November 10, 2022, 11:18:31 AM »
That might not fit into the can that the capacitor goes into on most split phase motors. However, I have done that to solve the problem of not being able to obtain the long obsolete "sardine can" capacitors in vintage Craftsman with the capacitor in the base. Excellent old motors that run very quiet. Definitely worth repairing. Put shrink tube over the crumbly wiring. The bearings they used were so good you just repack them and good to go another 50yrs. You might have to add a pig tail to allow hookup to a drum switch for reversing but well worth the effort. I put one on one of my South Bend lathes and it runs sooo quiet. Also adjusted the end gears for the quietest operation. Really nice.
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USA, PA, Camp Hill
Firewalker
Notos Conversions for all!
GTA Senior Contributor
Posts: 5474
N.U.A.H Master
Real Name: David
Re: What's wrong with my lathe motor
«
Reply #22 on:
November 10, 2022, 11:40:24 AM »
When my motor goes out, I'll be doing the VFD thing or perhaps BLDC route.
Either way, I want to automate the feed and crossfeed.
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USA, MN, Mille Lacs
https://www.gatewaytoairguns.org/GTA/gallery/medium_66525-260324142421.jpeg
jackssmirkingrevenge
Sharp Shooter
Posts: 758
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Real Name: Jack
Re: What's wrong with my lathe motor
«
Reply #23 on:
November 12, 2022, 07:00:16 PM »
I managed to source this capacitor locally, 270μF instead of the original 300μF but it seems to have done the trick
The capacitor came with a resistor between the terminals, which from what I've read is to bleed off residual voltage from the capacitor when disconnected, but I removed it as the original didn't have one.
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QC
"You have to make many weapons, because this field is long and short life"
KWK
Sharp Shooter
Posts: 590
yes
Real Name: Karl
Re: What's wrong with my lathe motor
«
Reply #24 on:
November 14, 2022, 11:52:41 AM »
The tolerance for new electrolytic capacitors is usually +_ 10% (yours is +20 _ 0) so you are ok but it's so easy to obtain a 300 I don't know why you would sub.
Not going to hurt anything you're only spinning a chuck on start up. Only going to be on the start windings for a split second.
Glad you got your lathe going again!
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USA, PA, Camp Hill
KWK
Sharp Shooter
Posts: 590
yes
Real Name: Karl
Re: What's wrong with my lathe motor
«
Reply #25 on:
November 14, 2022, 11:56:02 AM »
If you ever replace those twin belts make sure to get a matched set. +++
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USA, PA, Camp Hill
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What's wrong with my lathe motor