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Faulty Motor Switch?
One of my recent "new" machines (acquired at the same time as the Unisaw that was the subject of another thread several days ago, and which made the trip home just fine, thankyouverymuch) is an Invicta/Delta 22-650 (aka Rockwell RC-33) planer. 220V, 2HP, single phase motor. While making space for these machines and setting them up, I turned on the planer for a few seconds, then flipped the switch to OFF. The planer kept running. It took a few more flips of the switch before the planer stopped. I repeated the process and had the same experience. It didn't do this when I tried it out at its old location, of course. With the power disconnected I checked the switch terminals for continuity. So far I haven't been able to duplicate the problem--that is, to get continuity with the switch in the OFF position. (It's a double-pole switch, and both pairs of terminals behave like they ought to when probed with a meter.) Nothing looks or smells out of sorts with the switch. Unless someone suggests another possiblity, I'm going to assume that the switch is faulty in some way that doesn't show up at low voltage/current, and that it simply needs replacing. Anything else I ought to check first? -- Chuck Taylor http://home.hiwaay.net/~taylorc/contact/ |
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