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. -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/index.html California, USA ------------------------------------------------------------------------------ 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
