Question about Miller Hf 251D 042388 Tig Hi Freq For Engine Driven
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?
Posted on Dec 12, 2008
You need to find a Miller welder unit that will accept the input from the 251.
Posted on Oct 05, 2009
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Posted on Jan 02, 2017
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