Update:
I have removed capacitor bank. Three 16000 uF capacitors in parallel which I presume add up to 48000 uF.
Tested each capacitor with ohm meter. Two test as open circuit and show changing values as they try to charge.
One fluctuates between open and short circuit. Retested all three with...
Thanks guys.
Welder is a Hede Nielsen Euroboy 3. which I bought new many years ago.
Gas Pressure gauges show ok and I can hear gas release.
Capacitors all look good and it is good to know that they should not cause this type of fault.
I will try to test the diodes to see if any have broken...
I have been using a Hede Nielsen Mig welder on and off for about twenty years. Suddenly it has started burning holes through 1.0/1.2 mm steel sheet when on its lowest setting. The arc looks and sounds more fierce than it used to. Any suggestions as to what has changed? Everything inside looks...
First post but I have a bit of experience with horse shoes. Without heat they will bend with effort but they will buckle. When you flatten them in a vise they will try to unbend. The width of the shoe is the problem. Bending with grooved rollers helps but it it is still not easy. Pony sized...