Apologies if this has been covered previously.. I've pulled my old murex 130 out to try and get it going again. It. It's be about 20 years old and used to work fine but packed in and got shoved away. I think it may be worth a go at sorting it as there are a few jobs it could do that my inverter stick can't. It welds great for about 30 seconds on full power then splutters and barely welds. It's got new gas, new wire, tip, nozzle etc. It seemed like low voltage. My electric knowledge is basic but I put voltmeter on earth and tip. It reads about 30v without trigger pressed. Press trigger and voltage fluctuates between 30v but mostly drops to about 1v. Press again and sometimes it goes back to 30 ish but mainly stays around 1v regardless of where power setting is placed. I've had a quick look and fixed any obvious dodgy contacts etc. Any idea where to start with diagnosing why the voltage is not as it should be?
Thanks
Thanks