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aland
					 
				 
				Ok, I have a tiny, and I mean TINY copper screw. AFAICT, there is no way to get anything in from the outside of the case to access it. That leaves me to believe that I would need to disassemble the machine to get to the points, and it's not clear if that will adjust them, it is a very tiny screw. There is no locking nut, and the screw is nowhere near the size it shows in the manual.
			
		 
	 
 I think one issue is the way this is being presented. Many machines only have the point adjustment information in the service manual, not the user manual. This is not common user task. It is simply a fixed spark gap, there are no moving parts to wear, just spark erosion that takes ages to change the gap. They typically do not need adjustment for hundreds if not thousands of hours. The one exception is if the machine is dropped or has had rough handling. This is why some new machines have needed to be touched up after their extensive shipping. Yes the machine will have to come apart to make this adjustment. That is typical for most welders. The actual adjustment system is different from model to model, but is pretty basic, and self explanatory once you see it. Some units you simply bend the tabs holding the contact points (250 EX), some are screw type. These points are only used for starting so they do not have the large point system that older machines had because those were often set to run continuously.
A piece of .030" or .035" MIG wire makes a great gauge to get into tight places to check the gap.
				
			 
			
		 
			
				
			
			
				Long arc, short arc, heliarc and in-the-dark!