Got a murex autolynx 160mk2 and it isn't welding right. melts the wire but beads it all ontop of th steel without any real penetration. at first thought it may be capacitors, of which it has two big 250000 oil filled electrolytics. well ive actually tested the caps tonight and with multimeter set to 2000 ohms, the caps, both of them respond like I was advised they would if they were good caps, ramping up, switch the leads, ramping down.
I have found out something from the seller of this Murex today that he had the machine looked at before giving me it (could have told me earlier) and the engineer told him its got problems controlling voltage CV and the wire feed motor isnt working right. But the motor sounds fine to me and pushes wire fine. ramps up its speed if I turn the dial and vice versa? Also didn't understqand how he stated it had problem controlling voltage. I have tested and have proper voltages measured at the tip from my meter with trigger pulled. I thought with amps that the wire feed side controlled this and this also being where a mig gets its heat/penetration from was the machines ability to control the amps relative to the arc length it monitors and the wire feed setting.
Some to summerise my two caps are fine and im now looking within the wire feed and also towards measuring the machines amperage delivery at the tip when welding.... I don't have a DC amp meter at present though.
CAN ANYONE ADVISE OR ADD TO THIS WHO HAS MORE EXPERIENCE......
I have found out something from the seller of this Murex today that he had the machine looked at before giving me it (could have told me earlier) and the engineer told him its got problems controlling voltage CV and the wire feed motor isnt working right. But the motor sounds fine to me and pushes wire fine. ramps up its speed if I turn the dial and vice versa? Also didn't understqand how he stated it had problem controlling voltage. I have tested and have proper voltages measured at the tip from my meter with trigger pulled. I thought with amps that the wire feed side controlled this and this also being where a mig gets its heat/penetration from was the machines ability to control the amps relative to the arc length it monitors and the wire feed setting.
Some to summerise my two caps are fine and im now looking within the wire feed and also towards measuring the machines amperage delivery at the tip when welding.... I don't have a DC amp meter at present though.
CAN ANYONE ADVISE OR ADD TO THIS WHO HAS MORE EXPERIENCE......