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AO Smith welder question

MrBrown

Registered
Hello, long time reader first time poster. I picked up this welder a A225U it has a crank on top to move amps up and down.On the bottom are three leads,smooth arc,forced arc,and ground. What is forced arc and what is it used for? The amp readings on the front are left side,smooth arc and right side is forced arc witch is correspondingly lower. Thanks for any information provided.
 

Ray Freeman

Registered
The forced arc setting will have a higher open circuit voltage. It will start and run low hydrogen rods better as well as other electrodes that run better with a few extra volts.:) Unless you need the higher amps of the other setting I would be using for all mt welding.:)
 

Ray Freeman

Registered
The forced arc setting will have a higher voltage output than the other side. Its better for starting and running low hydrogen rods (7016/7018) and other electrodes that are better with a few extra volts.In fact any rod will likely run better on it.
 
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