Posted by kito169 on February 25, 2013 at 06:27:03 from (173.184.22.4):
In Reply to: Ground for a welder posted by Stan in Oly, WA on February 25, 2013 at 00:10:45:
In 1972 I was building a clean room for Texas Instruments to grow their silicon chips in. They grew them in a fancy oven which had an earth ground. While welding some ceiling channels in, with a Lincoln tombstone a/c welder, I was touching the ceiling channel which had the return/ground clamp attached with my hand and my butt touched the oven. The stinger was laying on the scafold. The electricity was passing throuh my body and I could not get loose. I could not say anything either. My Dad was on the floor rolling the scaffold around for me and saw something was wrong so he pushed the scaffold so I was not in contact with the oven anymore. I"ve never used an a/c welder since. d/c only for me
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Today's Featured Article - Restoration Story: 1964 JD 2010 Dsl - Part 2 - by Jim Nielsen. Despite having to disassemble the majority of my John Deere 2010's diesel engine, I was still hopeful I could leave the engine-complete with crankshaft and camshaft-in the tractor. This would make the whole engine rebuild job much easier-and much less expensive! I soon found however, that the #4 conrod bearing had disintegrated, taking with it chunks of the crankshaft journal. As a resul
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