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Thread: Lathe won't start
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11th November 2011, 09:48 PM #1SENIOR MEMBER
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Lathe won't start
Hi all,
I bought a brand new lathe about 6 months ago, a H&F AL340D. Recently it wouldn't start unless I manually rotated the chuck to get it spinning. I checked the capacitors today and found this
Because I have no skill at all in things electrical I will just take it in and get one the same. I need to know if the wires can go back on to any terminal or do they have to go on the way they came off. There are no markings that I could see on the old one.
These are the only markings and they are on the side
Phil
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11th November 2011 09:48 PM # ADSGoogle Adsense Advertisement
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11th November 2011, 10:05 PM #2
Yes, Phil, the connections can go either way. Just make sure you put them on the same terminals the old ones are - obviously.
As the labelling says, you nee a 150 microfarad 250VAC starting capacitor. Since many of our power supplies in rural Vic are actually 245V, you would be better off with one labelled 380VAC or even 400VAC as long as you can fit it in the space ir near it. That would give it a bit better longevity. Yours seems to have shorted internally, possibly after overheating and deforming the end and melted one connection off.
Joe
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11th November 2011, 10:06 PM #3
Hi Phil,
AC motor start caps aren't polarized, re-connect either way around, but you need the same capacitance, 150uF, and at least the same or higher voltage rating.
Those chinese caps, are pretty spectacular when they let go, I was at a friend's place when he had one go on his bandsaw, and filled a large shed with thick smoke in less than a minute... As it happened, I had a spare cap in the toolbox, and had his bandsaw repaired and back to running normally before the smoke had cleared..
Regards
Ray
PS Joe can type faster than me..
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11th November 2011, 10:24 PM #4SENIOR MEMBER
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Hi Joe and Ray
Typical, you two are the ones who told me where to look for the problem at the scraping class. I finally got sick of roll starting the lathe. So if I get the same microfarads but can go higher in voltage it will still be ok
Thanks heaps gentlemen
Phil
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12th November 2011, 01:17 PM #5SENIOR MEMBER
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Many thanks Joe and Ray
New capacitor fitted, a bit too big for it's original recess but hangin' on the outside secured with a cable tie. Lathe put back in position and leveled and no more roll starting.
Woo hoo
Phil
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12th November 2011, 11:58 PM #6
Well done Phil.
Joe
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14th November 2011, 06:06 PM #7GOLD MEMBER
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14th November 2011, 06:08 PM #8GOLD MEMBER
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14th November 2011, 07:51 PM #9GOLD MEMBER
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Hi Phil,
Did you ring them?
I bought a similar lathe(one size down but with likely the same motor). A cap dropped dead(but not as dramatically as you're or Rays friends). I rang the company up and they had some story about a batch of bad motors, come get a new one. Then I replace the cap for $35(!?), so now I have the new motor on the lathe and the old one I'm using for my scraper hone(for which it wouldn't really need the cap for anyway so it might be removed)
Stuart
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14th November 2011, 08:32 PM #10SENIOR MEMBER
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14th November 2011, 08:36 PM #11SENIOR MEMBER
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16th November 2011, 12:29 PM #12SENIOR MEMBER
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Stuart
I rang H&F and got told they won't be able to convince their supplier that it was faulty and that it now comes under the heading of wear and tear. So, no replacement part or motor but he did tell me where I can buy new motors and spares.
Bugga
Phil
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16th November 2011, 01:17 PM #13GOLD MEMBER
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Hi Phil,
Motor drops dead after 6 months on a $5k+ lathe and they call it(I dont care what they think their supplier might call it, your warranty is with them not their supplier) fair wear and tear! If thats fear wear and tear what wouldnt be?
"(a) the warranty applies on the basis of the Goods being used on the equivalent of a single daily eight (8) hour shift."
Just how many 8 hour shifts have you put on your machine?
Stuart
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16th November 2011, 01:33 PM #14GOLD MEMBER
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I'm with Stuart
thats a bit rough
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16th November 2011, 02:47 PM #15SENIOR MEMBER
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Dont worry Phil, my house got struck by lightning the other day and now my lathe wont start either (nor will half my other electrical appliances).
Im wondering if my insurer will extend their new for old replacement policy to my lathe or if they'll try weasel their way out of it just like hare and forbes seem to do anytime something of theirs goes bang.
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