I've got a Lincoln Square Wave 175 Tig welder. Today the foot pedal was acting up. Sometimes the pedal would respond and sometimes not. I checked the ground to the welding table. The arc would sometimes stop in the middle of the weld.It seems to me the problem is in the pedal. At times I needed to throttle the pedal to get an arc started. The gas solenoid is responding. Do foot pedals wear out?
19 years ago