Posted by Pete7 on May 13, 2012 at 16:41:06 from (72.65.27.19):
Had to replace the alternator in my 340 the other day. Wanted to check the new alternator today and I tried to use my cheap digital multimeter. With the tractor running I got volt readings at the battery that changed consistently and were from 12 to 19 volts. Numbers just jumped all around. Thought I had a problem for awhile and I started checking wires and connections. Couldn't find a problem. Got out my old analog multimeter and got a steady 14.5 volts while running. Was the digital multimeter the issue (it reads OK on my car and on my Super A ( has a alternator too). I'm guessing the 340 must be creating some type of "noise" that makes the meter erratic?? The 340 has a coil while the Super A has a magneto, if that makes any difference. Pete
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