EMCO FB2 electrical help

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EMCO FB2 electrical help

This topic has 13 replies, 6 voices, and was last updated 15 May 2018 at 11:36 by Sam Collins.

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13 May 2018 at 10:09 #353816
Sam Collins
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@samcollins81137
Hi all, I have just acquired an EMCO FB2 mill from a deceased estate that I wish to learn the basics of light milling on. It seems this mill was originally attached to a lathe and as such shared the start capacitor/condenser. Would anyone on here happen to know what value capacitor I would require to get the machine running? Plenty of part numbers etc in the spare parts manuals but no capacitance or voltage ratings.On the motor name plate reads 6uF, 460V? have attached pic of name plate, any help much appreciated.
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13 May 2018 at 10:09 #13224
Sam Collins
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@samcollins81137
13 May 2018 at 10:19 #353820
Sam Collins
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@samcollins81137
13 May 2018 at 13:16 #353840
JasonB
Moderator
@jasonb
If it is a mill complete with X & Y tables then it was a stand alone machine, Emco did do just the head and column which could be mounted on the back of a lathe but I think that did not share electrics as far as I know.
13 May 2018 at 13:29 #353843
Phil Whitley
Participant
@philwhitley94135
The value on the motor plate will be correct, 6uF 460V, although 40vv would be ok, you usually set the working voltage for a capacitor at double the supply voltage or thereabouts.. If you have a motor rewind shop near you, they will have them, or buy from the net, should be less than a tenner!

Hope this helps

Phil
13 May 2018 at 13:30 #353844
Phil Whitley
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@philwhitley94135
sorry, that should be 400v!!
13 May 2018 at 13:56 #353850
Sam Collins
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@samcollins81137
Hi guys thanks for the info, I will shoot down to local electrical supplier in the morning and see what they have, failing that will contact some motor repair shops. As for the FB2, when I purchased the machine the seller said it was wired to a Emco maximat super 11 lathe. Im thinking the two have been seperated by the original owner as the X/Y table are of a different brand (Demanders Verktygsfabrik AB – Sweeden), and the steel base section that the column and X/Y table are mounted to appears to be custom fabricated. I will post pictures up when I get time.

Thanks again,

Sam
13 May 2018 at 14:11 #353855
Joseph Noci 1
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@josephnoci1
Sam, I have 3 FB-2's, and know them well! One I converted to full CNC..

The Mill head when supplied as part of the lathe had the starter cap in the lathe electrical box and did not 'share' the electrics, but it was simply a place to put the capacitor..In the stand-alone table top mill setup, the cap is located in the machine base, together with the motor on-off switch.

The standard 220v single phase FB-2 table top mill was fitted with a 0.18KW motor, while the milling head on the Super-11 had a 0.22KW motor – hence yours..

The 0.18KW motor used an 8uf 420V cap. You can use an 8uf on your motor as well..

Joe
13 May 2018 at 14:15 #353858
Ex contributor
Participant
@mgnbuk
The Emco FB2 Operating Instruction manual & Spare Parts List can be downloaded **LINK**

The manuals are in German & the Operating Instruction manual (Betriebsanleitung) has wiring diagrams.

HTH

Nigel B
13 May 2018 at 14:22 #353859
Joseph Noci 1
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@josephnoci1
Sam, just digging through my handbooks again –

In fact, the motor on the Super-11 mill is the same as on the stand-alone mill. If you look at the top right of your label – the RBP0.18 denotes a 0.18KW motor.

The standalone mill motor nameplate indicates 220v, 1.7amp, 0.18KW

You motor says 240v 1.9amp, 0.22KW – the extra bit comes from the increased aloowed voltage…But the motor is in fact the same motor. In the handbooks it indicates the capacitor is 6uf @ 240V supply and 8uf @ 220VAC – not sure what your supply voltage is, but if it is closer to 220V, I would rather fit the 8uf cap…better starting on those cold oil mornings…

Enough..

Joe

Joe
13 May 2018 at 15:07 #353865
Sam Collins
Participant
@samcollins81137
Hi Joe that all makes sense re capacitor location when mill was mounted to the lathe, I will be relocating on/off switch from side of motor where it is mounted now onto the stand that I intend to fabricate for the mill and will mount the capacitor and a new connector block inside an IP rated ABS box with all wiring run in flexible conduit. Our supply voltage here in Australia usually fluctuates between 230V and 240V so to be sure I will need a 460V, 6uF capacitor?

Cheers, Sam
13 May 2018 at 16:43 #353875
John Rudd
Participant
@johnrudd16576
Sam,

Just make sure that the replacement capacitor has a working voltage minimum of 400v AC….then you should be good to go. The capacitor although having a value of 6mfd, will probably have a tolerance anyway.

Ebay suppliers ought to be able to help, although there maybe local electric factors there in Oz that could help…( keep the local economy going…)
13 May 2018 at 16:50 #353877
Joseph Noci 1
Participant
@josephnoci1
Sam, 6uf is fine, and 8uf just as good in that application – Any Electrical supply for home appliance repairs should have some – Household Fans use them as well.. And as said 400V is needed.

Joe
15 May 2018 at 11:36 #354093
Sam Collins
Participant
@samcollins81137
Success! Picked up capacitor from a local motor repair shop ($10.50) and hooked it up temp to test. Will wire in permanently once i get around to fabing up a stand and possibly a chip tray. Photos attached with table off showing previous owners homemade base, very heavy!

Edited By Sam Collins on 15/05/2018 11:38:25
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