Product Lincoln electric sp-135t. Wire feed motor has quit advancing wire. In investigating, the motor and rheostat (wire speed switch) work perfectly when absent of wire. When wire is threaded, I notice a small spark between the wire and the lower wheel. It is then that the advance quits working. Seems to me a short has developed causing the wire feed motor to stall out. Any ideas? Ken Rousseau 918.899.6011 or [email protected] Thanks
Welding Tools - Lincoln Electric