Question about Miller Welding Tools
I HAVE BEEN GIVEN A MILLER HF 250-1 TIG UNIT THAT I WAS TOLD I COULD WIRE TO MY STICK WELDER FOR POWER.
Posted by Anonymous on
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Posted on Jan 02, 2017
SOURCE: I have a miller dynasty
From the user manual for a generic dynasty model welder:
2 Help 2 Display
Indicates an open in the thermal protection
circuitry located on the left side of the unit.
Contact a Factory Authorized Service
Agent if this display is shown.
So you could have anything from a broken or disconnected wire to a bad thermal switch.
You can get user manuals specific to your welder at www.millerwelds.com
Rank this answer please,
Posted on Dec 02, 2008
Odd noises other than the normal sound of the spark gap working are often the result of dust and junk inside the case of your welder. That it also bogs down when it gets warmed up (fan comes on), also points to a need for some "annual maintenance" stuff being done.
Completely isolate the machine from the building power supply, pul the plug, open the circuit breaker, do whatever it is that makes the machine have no connection to any power.
Take off the covers with a 10mm or 3/8 inch socket (can't remember which)
Use a shop vac to **** out all of the dust and debris out of the machine. Low pressure (40 psi) air can sometimes be helpful to dislodge caked on dirt. Avoid any metal tools near the capacitor bank inside the welder.
Wipe off the fan blades.
Clean the spark gap electrodes by inserting and removing a matchbook cover, a business card, or a piece of white cardboard several times. Inspect the electrodes and adjust them according to the manual that came with the welder.
Check all of the power wiring connections for tightness by gently tugging on them. Look for signs of overheating on the power connections and on the internal connections to the welding terminals. Check the range switch for heating too.
With the cover still off, reconnect the power and turn the welder on. Look for obviously vibrating laminations on the main input transformer. If you see one buzzing back and forth, or if you notice lots of wear and tear on the varnish coating of the laminations, shut everything down and repair the loose laminations with some anti-fungal high voltage varnish.
Turn the welder off, disconnect the power, and put it all back together. Then turn the power back on and weld something, if htere is still a buzzing noise you'll need a Miller tech to solve the problem, you likely have a bad input transfirmer.
Posted on Jan 26, 2009
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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