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Posted by David Sherman [216.18.131.13] on Tuesday, September 15, 2009 at 12:58:58 :
In Reply to: Re: Link to Walker-Turner manuals posted by mannyc [68.165.89.2] on Tuesday, September 15, 2009 at 08:53:48 :
I need a phase and voltage converter, since I don't have 440 either, but I have a couple of 1/2 hp industrial pump motors that have split 3-phase windings (220/440), so I'm thinking I could use one of them as a combined transformer and phase converter, with a small single-phase motor attached to spin up the bigger one. I wouldn't get full power (1 hp) out of my grinder that way but it might be good enough. Likewise, if I just used a step-up transformer on one phase, plus a phase-shifting capacitor on one of the other windings to get it started, I'd also be at less than full power, but it would be simpler than a rotary phase converter. I have lots of 120/240/480 transformers laying around, but probably no motor-starting capacitors that are big enough.
The other comments here make it sound like Walker Turner made good machines and it would be worth messing with. It'll be a winter project either way. After reading some stuff about them being a low-priced home/hobby line, I was concerned it might be like the Wards power tools from that vintage -- kind of flimsy even though they're old. Of course at this point for all I know the motor might be burned up. It doesn't look or smell burned. The shaft seems to run smooth and isn't bent.