Hasn’t been used for a while is plugged into 20amp plug with 12 gauge extension cord. Motor started as usual and stepped up to full rpm. Made 1 cut ok. Switched off next cut turned on stepped up then quit. Went to flip switch off and wispy smoke was coming out of switch. Unplugged and here I am
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Rep: 57
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Hi Bod,
usually the switches can handle much more current than the nominal current of the device. Please check if there is dust and moisture concentration on-in the switch. Otherwise I would recommend to find a replacement part. If you reach the switch you can also check if there are any cables almost detached from the switch itself.
good luck
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Agreed. Switch or attached wiring looks suspect. Smoke comes from severely overheated cable insulation when the conductor is carrying too high a current. If the db board switch didn't trip, it indicates a dead short is not likely. Another cause should be looked for as suggested by Gavriil. If you can measure the current it may tell you something for example a field or armature winding problem. If the very thin insulation coating of these windings overheat they may cause a local inter coil short, increasing the current and thus the heat generated. These motors are usually protected by a thermal cutout fuse to prevent motor damage. They usually fail permanently but can be replaced (if you can locate it). However the cause must be established.
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