Author Topic: lathe gone bang  (Read 8531 times)

Offline krv3000

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lathe gone bang
« on: April 14, 2012, 05:05:36 PM »
HI all don't no if this belongs in this bit but her goes the forward and revers switch on me lathe has blown up to things i need is a new switch and a wiring diagram to re wire the new switch up i have tried to just link up the motor so i wood have the lathe ruining but no go I'm no good with electricity their is two blacks 1 brawn and 1 blue the blue goes to the capacitor as to the rest i give in can any one give me a diagram to wire this up with just a off and on switch and where can i get a new forward and revers switch from right the lathe is a emco compact 8 any help wood be gratefully received       

Offline Jasonb

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Re: lathe gone bang
« Reply #1 on: April 14, 2012, 05:11:19 PM »
Pro Machine Tools should be able to source a new switch, in the past they have got me parts from Austria for my Emcomat 8.6 when I had that

http://www.emcomachinetools.co.uk/Home/tabid/36/List/1/Default.aspx

Parts list and diagrammed

http://www.emcomachinetools.co.uk/LinkClick.aspx?fileticket=jsr1EnznjKY%3d&tabid=260&language=en-GB

Offline krv3000

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Re: lathe gone bang
« Reply #2 on: April 14, 2012, 05:31:24 PM »
HI jason i have the parts list and the diagram of the parts but their is no wiring diagram and last time i got in touch with the people you have listed i got no reply from them and i did try and get in touch with them More than once

Offline Bluechip

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Re: lathe gone bang
« Reply #3 on: April 14, 2012, 06:11:28 PM »
Bob

Send a piccy .... if you can.

There should be 2 connections to the start capacitor .. :thumbup:

Do you want a generic diagram of a 1 ph cap start motor ??

Simple enough ..

The 'cap / switch / start winding' may be in any order, just a series circuit.

 Dave BC
I have a few modest talents. Knowing what I'm doing isn't one of them.

Offline krv3000

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Re: lathe gone bang
« Reply #4 on: April 14, 2012, 06:37:59 PM »
Hi bluechip yep i will post sum pics as soon as i can i no nothing regarding the black art of electrics the switch was faulty when i got the lath so i put a septet on off switch to the feed in will post pics tomorrow thanks for the help

Offline krv3000

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Re: lathe gone bang
« Reply #5 on: April 17, 2012, 05:52:39 PM »
HI all all is not lost with the aide of bluechip have got the lathe ruining well sort of it needs a new capacitor i can only get it to run foreword no revers I'm go wing to whip the motor of and get it checked out right sum pics the way i have wired it up is brawn is live so live to the motor and capacitor and the black with the red tag on it to blue which is nutrel and with a spin on the puly wheel its of and ruining

Offline krv3000

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Re: lathe gone bang
« Reply #6 on: April 18, 2012, 10:10:28 AM »
Hi all thanks to all that has helped bluechip if i post a pic of the way its wired up to run will you be able to confirm that i have dun it right i have bin in touch with emco and got sum prises of parts the motor with condenser is £240 the switch is £60 with vat and post it all cums to £398.40  :jaw: :jaw: :jaw:

Offline Bluechip

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Re: lathe gone bang
« Reply #7 on: April 18, 2012, 11:14:30 AM »
Bob

You need to find out what's gone pop ..

Get someone to meter the motor out, no point lashing out loads of shekels if you have no need to.

If a motor won't start, but runs after a quick flick, it may well be that the start winding is shot. But other, cheaper, things can be wrong.

ie, start switch crudded up and not making contact. Cap gone open cct. Sometimes the start switch assy. gets corroded.
Have a damn good shufti at any rivetted connections on it.

As you have the motor running, can you hear a click as it nears stopping. This is the Start Switch dropping back to the closed position.

I don't know that I could verify any wiring from here ...  :(

I have enough grief with my own, and that's under my nose ..  :lol:

Dave BC



I have a few modest talents. Knowing what I'm doing isn't one of them.

Offline krv3000

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Re: lathe gone bang
« Reply #8 on: April 18, 2012, 04:51:28 PM »
HI no problem the switch fitted is brand new i got three and have tried all three the cap that's in the pic is us and the cap i have it ruining off is the wrong type I'm striping the motor off for testing its only held on by 4 nuts and getting a new cap from rs

Offline krv3000

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Re: lathe gone bang
« Reply #9 on: April 19, 2012, 07:11:30 PM »
ITS A LIVE   :ddb:   I got a new capacitor today from rs and it runs as it did before I have just wired it up on a separate switch so at present no revers   thanks to all that has helped  I'm in you det

Offline DaveH

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Re: lathe gone bang
« Reply #10 on: April 21, 2012, 03:44:43 PM »
Bob,

 :) That's good, well done  :)

 :beer:
DaveH
(Ex Leicester, Thurmaston, Ashby De La Zouch.)

Offline Stilldrillin

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Re: lathe gone bang
« Reply #11 on: April 21, 2012, 03:49:59 PM »
Well done Bob!   :clap: :clap:

It's a great feeling, when it comes to life again........  :thumbup:

David D
David.

Still drilling holes... Sometimes, in the right place!

Still modifying bits of metal... Occasionally, making an improvement!

Offline krv3000

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Re: lathe gone bang
« Reply #12 on: April 21, 2012, 08:05:49 PM »
hi just a up date the lathe has bin run for most of to day with out any problems her is the diagram i got of emco for wiring