It's that time of year! I love going out to the hay fields to work on pivots! It's so green and nice. I had a good one yesterday, a Lockwood pivot had a failed safety circuit. Checked each tower and they all looked good, but no safety circuit return to the control panel! Finally checked the collector rings, and found it! The brush was oxidized on the low voltage safety circuit. It's only about 16 volts coming back, and a little oxidization will not conduct. A little sandpaper and it's good to go!
May 16th, 2013 Beautiful day!
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The life & times of my electrical world!