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Colchester Triumph help

Marknb

Member
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I wasn’t sure where to post this but figured I’d start here.

A while back I posted about a Colchester triumph for sale in NS. I went to look at it and probably against the advise of more knowledgeable folks, I ended up buying it. The owner had converted it to a single phase motor. The lathe had come of of a machine shop in the valley in NS. The gentleman I bought it from has been buying and selling machines longer than I’ve been alive, and had it about 5 years, so I went for it. the lathe worked well in his shop, we ran through all the gears, and everything worked well. It came with a 3j chuck, 4J chuck, collet chuck, steady rest and follow rest. He also threw in some odds and edds.

I didn’t take any photos of the move , but it was definitely some work for the 2 of us. The owner has moved a machine or 2 in the past and was well set up to get it out of his shop and onto the trailer. It was definitely a lot harder when I got home, thank goodness for a tractor.

Unfortunately, when I got around to trying the lathe at home, nothing, it won’t start. Ive been talking with the gentleman I bought it from, and he had me try a few things, but nothing worked. Yesterday he made the trip up to my place, about a 4 hr drive, and helped me trouble shoot the lathe. It seems like something happened to the coil. We have power, the motor will run when tested, but it won’t start.

I’ve been looking online, but I’m not having any luck googling Colchester lathe coil. When I search using the part number off the part I get very different results what I’m after? Does anyone have any suggestions on where to look? I’ll add a few pictures of what I’m after.

I’m not sure if I’ve used the right terms to describe stuff, I’m still learning about electrical.
 
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I am pretty sure the coil to control that relay is 120V AC as indicated by the writing at the base of the relay - red box.

I would take the relay back off, pull the coil out and confirm the markings on it. While it is out, you can also do a coil continuity test. You should get a few ohms of resistance for a good coil.

If it is a 120V coil and somehow 240V got to it, it most likely fried it. This would be indicated by an open circuit / overload on your multimeter.

You can test the relay itself for continuity by connecting your leads between L1-T1, L2-T2 and L3-T3 ( or across the corresponding aux terminals - just note that some are NO [normally open] and some are NC [normally closed] ) WHILE you push down the black button with a screw driver. If the contacts are good, you will get continuity (as appropriate) when you test the relay.

My Colchester Master 2500 has a similar / if not identical relay. Not home, so can’t check for you right now. Can do later if required…

Congrats on your purchase; I’m sure you will like the lathe once you got this kink worked out.
 
Oh, just noticed, the relay is inadequate for a 7.5hp motor run on single phase as indicated by the tag on the back which rates the relay at max 5hp at 230V if using single phase power.

The control coil voltage is still 120V (most likely) as discussed above…
 
Google “Moeller DIL 0 AM” and you should find results.

Thanks for that , I was searching using the iec 60947 and wasn’t getting anywhere.

I should of mentioned he used a 3hp single phase motor. He gave me a very good and thorough explanation of why he chose 3hp, but I can’t recall enough of it to repeat the reasons.
 
Any industrial electrical supply can get you a contactor suitable to replace that one. Bring it with you and tell them it’s for a 3hp motor.
 
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