9100
Diamond
- Joined
- Nov 1, 2004
- Location
- Webster Groves, MO
A surface grinder was single phasing because of an intermittent in the switch. The switch is an old manually operated Cutler Hammer with buttons for on and off. The contact leaves are about 5/8" long with about 3/16" diameter silver contacts on each end. They are spring loaded closed and a Bakelite bar actuated by a cam pushes all three out of contact. The leaves were held in place and the fixed contacts were riveted in place, preventing removal for service. I did the 400 wet or dry routine that everyone tells me will have some terrible effect and got a lot of black smut on the paper, which I had to keep cutting off because it loaded with the crud. Anyway, the switch works now. I would like to get a new one, but the part number comes up dry and the only switches with that basic configuration seem to be single pole and I need at least two (I can get away with leaving the grounded B phase connected}.
I guess this is a question for Tom D who keeps telling us not to sandpaper contacts. What should I have done instead?
Bill
I guess this is a question for Tom D who keeps telling us not to sandpaper contacts. What should I have done instead?
Bill