I am using one at my new job, and it has this "auto postflow" that doesn't supply enough postflow argon. It lasts about 2 seconds because I am welding at 30-50 amps, but it is thin gauge stainless steel, so it heat soaks like crazy, and this project I am working on requires to have gold weld beads.

Seriously.

I am working in a job shop (non-automotive) and the customer requested this. I can make it happen and know what to do, but my puny postflow is hindering my progress.

Am I stuck?

 

Check this out...
Postflow time is automatically controlled.
Auto-postflow provides a
minimum of five seconds of postflow
for anything less than 50 amps
of weld current, and an additional
one second of postflow for each
additional ten amps of weld current.
1 Power Switch
2 Process Control
3 Encoder Adjust Control
To override auto-postflow and set a
specific postflow time, press and
hold Process push button while
turning on power. Hold button for
approximately 7 seconds. Voltmeter
will display POST, and ammeter
will display AUTO. Turn encoder to set
desired time in seconds. Postflow
settings effects AC and DC TIG,
and is not polarity specific. Press
torch triger or turn off power to save
settings.

 

You are the man! Where did you find this?

 

Millerswelds.com you can download the whole manual there. I own the same machine .

 

I apparently didn't look long enough on there.

Actually, I looked for 2 minutes before I realized I would find it faster on Honda-Tech.

Thanks!

 

Just search by serial #.

 

Gotcha... good to know. New to the Miller machines, always used Lincoln and it's website when needed.

Can't say if the Miller performs better or worse, but one thing is for SURE; arc start is tremendously better than Lincoln.

 

Nice find on that info!

I used an old 200A miller at my old job, and wonder if this would have worked. What I did was once I stopped the arc, I would touch the tungsten to the metal, and tap the pedal near the end of the post flow, to kick it in another 15 seconds. After a while, it becomes habit and you don't even think about it.

As for the better arc starts, I've used Millers and Lincolns that both had shitty starts, it really depends on the HF gap, and their condition. If you adjust them from time to time, you should always get perfect, crisp starts. (You may already know this, but might be interesting for others reading the thread).

 

Your correct in this for sure Markku, and it is an important detail most beginners overlook as being unimportant.