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So I traded a guy a motor that would trip the breaker for one that wouldn’t. Since I am an electronics tech and I have overhauled a half dozen U90 motors I was confident in the swap. Noise

Did you use the same type of bearing that're already in the headstock or a different type?

I've stripped the whole thing down and reassembled. Bushes are fine and very little carbon build up. I will go through at some point and try rebuild it and rewire but for now I have ordered a

Check that the brushes are still good & check how much carbon build up is in the motor. Capacitors may be shot too. Both can trip circuit protection. When you pull the motor apart place indexing marks

I had to repair the capacitor in mine wasn’t a hard job just split the motor casing and swap out the capacitor while your there clean you can clean out the carbon dust and replace the brushes....

I can almost guarantee that there's old dirt and oil and carbon from the brushes inside the motor and shorting the power to ground. Is the breaker a GFCI (USA)? I.e., does it have *Test* and *Reset*

Thanks, Mine trips the power the second I turn it on. I get the feeling the capacitor is shot as everything else looks fine. I've done some reading since I originally posted and I'm going to install a

I forgot to mention my NVR switch was ?20 it’s a single phase NVR without E stop but you can fit one with if you want, I find it pointless since the has to braking function anyway so it wouldn’t

The U90 motor is practically indestructible. I know many members believe it has an intermittent rating, but I have seen many of them, and never seen a sticker on it that said so. I don't think there

Mine did the same.... At first I thought it was the original switch as it tripped more often when I flicked the machine on, so I swapped it out to an NVR switch unit... that for the most part seamed

Dick, Look in the files section for: unimat3 threading attachment.pdf Uni 4 threading attachment.pdf They are both the same. A hand cranked threading solution for the U3. Brian In Spokane, WA USA 2nd

Dick, Look in the files section for: unimat3 threading attachment.pdf Uni 4 threading attachment.pdf They are both the same. A hand cranked threading solution for the U3. Brian In Spokane, WA USA

Just purchased a Emco Unimat SL and it keeps tripping the power in my house. Any ideas as to why? I'm in Australia so we use 240v single phase 10A. Motor details KUS 99, 240V, 95W, Mot.Nr: 752953

Kirkelie. Martin

Poor old Maximat needs some love. Neil ----- >

CORRECTION SALE stare FRIDAY March 6th at 8am. Subject: Unimat-SL for sale in INDIAN HARBOUR BEACH Florida on 6th March 2020 on Tomahawk Drive in INDIAN HARBOUR BEACH Florida

on Tomahawk Drive in INDIAN HARBOUR BEACH Florida https://spacecoast.craigslist.org/gms/d/satellite-beach-warehouse-sized-mancave/7081422084.html LARGE WAREHOUSE SIZED MAN CAVE TO BE LIQUIDATED,

*Quill movement counterweight vv spring for SL in vertical mode: *A pulley is not silly in the least as far as I am concerned. As my SL is static being attached to the back of the Myford S7 I will

I ask because I am going to let one go, the 7750 seems to run more quietly. The U90 seems to spin at higher rpm?

I have one made for the job. It uses simple gearing to get metric pitches down to 0.5 mm. It would need substantial modification to get finer pitches or inch threading in tpi. It works using a crank