Question about Miller 907068 MILLER TRAILBLAZER PRO 350D KUBOTA DH905

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My Miller trailblazer 251 NT will welder for about ten or fifteen minutes and seems that once it gets warmed up good it doesn't want to strike an arc and when it does it the engine will begin to misfire and won't drop back to idle. Any suggestions as to what the problem may be?

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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CarlGehrke
  • 169 Answers

SOURCE: hook up

I think I can help you do this, let's start with the general and you can ask questions if we don't cover everything you need.

The HF251D connects to the welding machine using 3 cables, you connect the Electrode terminal on the welding machine (the Lincoln) to the Electrode In terminal inside the HF251. Connect the Work terminal on the Lincoln to the Work In/Out inside the HF251, also connect the work (ground) clamp of your torch to this terminal. Be careful to select the correct size cables for the maximum current you intend to weld with.

The 3rd cable is the gray 14 pin round control cable that comes out the back of the HF251, it needs to be plugged into your Lincolns RMT14 socket. You'll also need to make sure that the Lincoln is set for remote control, this is usually a switch on the front panel. I'm pretty sure that the remote control cables have a standard pin layout, but we can check this by comparing the specs in both owners manuals.

After that you connect the torch and gas bottle to the HF251, start the Lincoln, and TIG weld until you're happy.

I've got a manual for the HF251 and can get a shop manual for it if we need it. What I'm not sure about is your Lincoln - what model is it exactly?

regards,
Carl

Posted on Dec 12, 2008

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keemo68
  • 1263 Answers

SOURCE: miller Syncrowave 250 / no tig arc start

seems that you have a ground issue. make sure the ground clap is on barte metela and secured tight. make sure your tungsten electrod is about 1/8 of an inch form the edge of the cone. you will find that you will get a faster arc this way.

Posted on Apr 19, 2009

mamicheddy
  • 79 Answers

SOURCE: miller bobcat 225g plus welding problem

If the idle is not working, then it is either you idle solenoid attached to the carberator or your idle board is bad. If you apply 12Vdc to the idle solenoid is should move, if not then the solenoid is shot, no good. If it works then you idle board is bad. Also, check to see if you are 60Hertz by measuring at the outlet with a frequency meter. I recommend a Fluke meter. You should have 120Vac and 60HZ at the outlet. If the frequency is low then your engine speed needs to be increased. The idle solenoid could be causing all these problems.

Posted on May 08, 2009

  • 5603 Answers

SOURCE: I have a miller thunderbolt 225v AC arc welder

The blank should be the grouDING conductor (green) and they may have a green screw to further indicate it.

Since the welder runs on 220, either of the hot wires can go to either of the other terminals (X or Y).. Those wires might be black, red, blue, brown.

There is a slight chance it would be white even though it is hot on the portable cord because some portable cord is used that way.

VERIFY the receptacle you connect to is wired correctely before connecting your unit to it.

Posted on Jan 24, 2010

SOURCE: Tig welder wont strike up arc, power to welder ok,

www.millerwelds.com › ProductsTIG -
www.millerwelds.com › Service & Support

Posted on Mar 27, 2010

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225Bobcat gen.runs but will not excite when trying to strike arc


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May 28, 2010 | Miller Welding Tools

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