Bridgeport milling machine Series 1 wiring diagram

[Russ BulleyParticipant @russbulley69715]

Does anyone have a wiring diagram for Bridgeport with no transformer and MEM contactors please.

Russ

[Russ BulleyParticipant @russbulley69715]

[John HinkleyParticipant @johnhinkley26699]

Hello, Russ,

I don't know if this will help, but it's a diagram, apparently published in ME, which came up in a Google image search for your machine. There doesn't appear to be a transformer in the circuit and looks to me to be a home-brewed diagram, rather than one lifted from an "official" source. Perhaps a Bridgeport owner on here will be along soon to give you the 'proper' info you need.

I note that the mains input is 115V AC, so that would probably explain the lack of transformer!

Regards,

John

[Clive FosterParticipant @clivefoster55965]

Russ

I have a PDF of one for a machine fitted with a motor and gearbox type power feed that is in two sections. One is essentially similar to the later machines with a big, multi-tap transformer. The other is much simpler version showing a transformer with 6 v output for an optical measurement system and taps for the common work light voltages.

The parts list states transformers provided to customer order. So far as I can see the transformer in the simpler circuit is a simple add on. All the control gear being directly run from the incoming 3 phase, with, apparently, simpler interconnection.

Cleaned up from a scan of a very ratty and foxed n'th generation photo-copy around 30 years ago to help sort a friends Bridgeport. I can't be sure the drawing of the simpler circuit is correct because his had the later style of transformer. Looks OK but …..

If it sounds useful PM me with your E-Mail and I'll shoot it over. Seriously weird colour so lord knows what will happen it you try to print it! Original was cleaned up in MacDraw and its gone through two or three other programs before being PDF'd.

Clives

[Clive FosterParticipant @clivefoster55965]

John

Regrettably that diagram is for one of the American DC motor power feed units. Goes with a 6F or 8F system. Seem to be several variants on American machines, most with reliability issues.

Clive

[Russ BulleyParticipant @russbulley69715]

Thanks for the replies so far. So Clive this is my machine

[Clive FosterParticipant @clivefoster55965]

Russ

Looks as if the simpler circuit diagram of the pair I have is the one for your machine. If its not exactly right it will be very similar.

PM me and I'll send the pdf file over.

Clive

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