Is a single turn pot ok or does it really need to be a ten turn or whatever it is?
Most of the welder I know are very "seat of the pants type" of guys. I seriously doubt if they ever look at the meters. Not hot enough turn it up. Too hot.. turn it down. Can't get it hot enough.. get a different welder. They know when the welder is malfunctioning when it can't do what it was doing the day before. :-) I do a fair amount of welding. Mostly stick and flux cored wire since they are usually outdoor repairs. The more I weld, the more I find myself ignoring the knobs and doing the same thing. It has taken several years, but I am finally comfortable doing overhead welding. I thought I would never get there! Dave On 11/22/2010 12:29 PM, Kirk Wallace wrote: > On Mon, 2010-11-22 at 10:57 -0500, Dave wrote: > ... snip > >> I have a Hobart Cyber-TIG also. It works but the current control pot >> on the front needs to be replaced as it is flaky. >> > I replaced mine with a temporary single turn potentiometer. The original > was intermittent so I took it apart: > http://www.wallacecompany.com/machine_shop/Hobart_Cyber-TIG/00014-1a.jpg > > It turns out that there is a hair thin wire bonded to a screw that > mounts a solder lug to the side of the pot. If you take the screw out > you break the wire and the unit is ruined. Every once in a while these > pots come up on eBay, but it can take time to find one that matches. > > >> I have the single phase version and it is the most powerful single phase >> welder I have ever used. I've only used it for stick welding so far, >> but I have a tig torch setup for it also. >> >> They don't make them like that anymore! I have no idea if the meters >> on the unit even work as I really can't look at them while it is in use >> also. >> >> Dave >> > In going through the schematics, I found an adjustment procedure for the > Max and Min current setting, where the WORK and ELECTRODE terminals are > shorted. Then, with HF off,and the current switched on (press foot > pedal), the ammeter should sweep up to match the set current. Changing > the Weld Current knob should change the ammeter reading (3 to Max Amps, > try with Remote switch On and Off). If you remove the WORK clamp and > press the pedal, the voltage meter should indicate full voltage of about > 85 Volts. I am thinking these tests might come in handy for setting up a > weld, but it would be better to talk to someone that has used one of > these for a living. > ------------------------------------------------------------------------------ Increase Visibility of Your 3D Game App & Earn a Chance To Win $500! Tap into the largest installed PC base & get more eyes on your game by optimizing for Intel(R) Graphics Technology. Get started today with the Intel(R) Software Partner Program. Five $500 cash prizes are up for grabs. http://p.sf.net/sfu/intelisp-dev2dev _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
