![]() We also know that the SA 200 coarse range switch has five settings. please let me try to invoke my ARC capabilities, (Asstute Remote Clarevoyance) to try to focus in on 1970 7214.Īs I look to the East, I know that one must pass through five "states" on the Lincoln Highway, to reach the home of the Lincoln Electric Company, in Cleveland. I don't want to second guess BobC, he's the best at methodical troubleshooting.īut. I hope the problem is not the shunt coils, replacing them is a big job. If all the wires and connections are good, the shunt coils are most likely open and will need to be replaced. ![]() Check the wires and connection between the two shunt coils. If the resistance measures considerably higher than 40 ohms, carefully check the wires and connections between where the ohm meter probes were placed and the generator shunt coils. ![]() ![]() Use an ohm meter to measure the resistance between the black wire on the auxiliary receptacle and the blue wire from the rheostat. (Something like a business card should work well for this.) With the engine off, either disconnect the blue wire from the rheostat, or place a piece of insulating paper between the movable contact of the rheostat and the rheostat resistance coil. If all the wires and connections look good, measure the resistance of the welding generator shunt coils. I would start by visually checking the rheostat and all the wiring and connections.
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