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Hobart plasma cutter250ci cuts then i stop it wont start up again till i turn it off and on and then wont run

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Posted on Jan 02, 2017

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johnr1959
  • 56 Answers

SOURCE: plasma cutter wont cut steady

Is your air compressor able to keep up with the continuous regulated air flow?
If positive air flow is not constant same pressure all the time
cutting will stop..>>

Also if your movements are to fast and or material to thick machine will behave that way..

Posted on Jan 30, 2009

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  • 2 Answers

SOURCE: miller plasma cutter stops cuttingafter a few seconds

the cutter probably has a built in current monitor. that trips out then resets itself. try a lower current.

Posted on Mar 24, 2009

buffalonyman
  • 1865 Answers

SOURCE: Plasma cutter only cuts for only a few seconds

The unit needs to be tested.

You're welcome to ship the unit to me for diagnostic testing and repair. info@taeckertindustries.com

Posted on Nov 07, 2009

SOURCE: Would you purchase the 400

It's all about duration. How much metal do you need to cut continuously. Although the 400 will cut a similar spec it won't hold out as long. So if it;s lots of short cuts the 400 is fine, if you need to cut thicker gauge for longer period go 500.

Posted on Aug 16, 2011

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1 Answer

Would you purchase the 400 hobart or go to 500 hobart plasma they seem to cut the same thickness on the metal chart..


It's all about duration. How much metal do you need to cut continuously. Although the 400 will cut a similar spec it won't hold out as long. So if it;s lots of short cuts the 400 is fine, if you need to cut thicker gauge for longer period go 500.

Aug 16, 2011 | Airforce HOBART AIRFORCE 400 PLASMA CUTTER...

1 Answer

Only cuts for 3 seconds, device still on


Possibly an internal short in the torch tip... the expendable components failing in the tip will cause the sensors in the machine to register a "no cut" or "free air arc" state and kill the power to the tip to prevent damage to the unit. Replace the tip components and double check the grounds connections.

Apr 03, 2010 | Hobart Airforce 250ci Light Weight Plasma...

1 Answer

My Hobart 250 airforce doesn't start


On the main circuit board for the power supply, there is usually a thermal fuse installed, its a sealed unit and is not servicible, look for a black epoxied case,approx 3/8x3/4 long, with 2 leads coming out of it. Inside is a set of bi-metal contact points which serves as an over voltage/over current protection. These contacts deform/corode over time and it sounds like there not contacting properly. As soon as you try to load the machine, the current passing through this high resistance heats these contacts up, and shuts off power to the unit. I am not familiar with the guts of a hypertherm, but have extensive experiance repairing inverter based plasma cutting equipment, and i have encountered this before. I assume hypertherm must have some equivelent to this thermal switch inside the power supply.....Good luck..

Dec 29, 2009 | Miller Hobart AirForce 250A Plasma Cutter ...

1 Answer

Hobart airforce 250 ci has power but will not operate


make sure that there is air to the plasma and set at the proper psi. Make sure that the contact tip and nozzle is in the cutting head correct.

Dec 18, 2009 | Hobart Airforce 250ci Plasma Cutter 12...

1 Answer

Plasma cutter only cuts for only a few seconds


The unit needs to be tested.

You're welcome to ship the unit to me for diagnostic testing and repair. info@taeckertindustries.com

Nov 07, 2009 | Airforce Welding Tools

1 Answer

Plasma cutter wont cut steady


Is your air compressor able to keep up with the continuous regulated air flow?
If positive air flow is not constant same pressure all the time
cutting will stop..>>

Also if your movements are to fast and or material to thick machine will behave that way..

Jan 22, 2009 | Hobart Welding Tools

1 Answer

Hobart 250 a keeps cutting off the flame


If you have a bad air supply then the moisture in the air will cause the torch to cut off and the cut quality depends also on air supply,speed,metal thickness and condition of your consumables,meaning your electrode and other related parts in the torch tip.Hope this helps

Jan 05, 2009 | Miller Hobart AirForce 250A Plasma Cutter ...

1 Answer

Hobart M-802 mixer


Your overloading the mixer with too much product or not enough water,cut the batch down,the motor protection board is doing its job by shutting off.

Aug 06, 2008 | Hobart Food Mixers

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