Question about Miller Hf 251D 042388 Tig Hi Freq For Engine Driven

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I had got an miller HF-251D-1 tig welder a few years back and in the instructions it suggested a part that needed replacing to make it compadible with a bobcat 250nt weld generator. Well the tig welder is able to turn on but i have never been able to get it to work. I've looked over and over on the drawings, use both the foot pedal and torch switch and still nothing. It won't even let the shielding gas go through. Any ideas. The machine is still 'brand new' but that's because it hasn't been able to work.

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Posted on Jan 02, 2017

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SOURCE: Miller TIG Welder Syncrowave 350XL has no digital read out...

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Posted on Mar 21, 2009

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keemo68
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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

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How make tig welder to mig welder


switch from tig welding to mig by switching your current from AC to DC for mig. change from your tig gun to your mig gun. turn water flow off. proper ground and weld away.

Mar 29, 2013 | Miller Welding Tools

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I have a Miller Big Blue 251D and while welding it died and won't restart.


Hi:
Have you check the fuses? Probably your machine experienced an overload. Check your owners manual on the troubleshoot section. Here's the link to the manual.
http://www.millerwelds.com/om/o480ac_mil.pdf
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I leave the setting in the middle because im not sure what it does


Hi frequency is used to start your tig with out touching your tungsten to the metal ,it saves the pointed tip from being ground as much.These used to be an add on with a separate box.I think you would notice the affect (flares out before you get close to the metal.)You can see it if you lay the cup down on the side and slowly roll it toward the tungsten.It is much easier to start an arc once you get used to it.Thank you for choosing FixYa.com

May 14, 2011 | Miller Hf 251D 042388 Tig Hi Freq For...

1 Answer

The tig welder will arc but there is no amperage and nothing is heated up it acts l;ike there is no amperage?


Make sure you have a good ground. With high frequency you can get it to still arc but have a bad ground.

Jun 11, 2010 | Miller Hf 251D 042388 Tig Hi Freq For...

1 Answer

Welding Mach.front control dials are not working


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Jun 05, 2009 | Miller Hf 251D 042388 Tig Hi Freq For...

2 Answers

Dirty weld


clean your metal with a good peace of the green scotch guard scrub pad prior to the weld.Also try turning up your gas and move a little faster when using filler wire,rember to much heat causes a darker dirter weld.hope this helps

Dec 28, 2008 | Welding Tools

2 Answers

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

Dec 10, 2008 | Miller Hf 251D 042388 Tig Hi Freq For...

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