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RTO Esab Handy Plasma 550 W/25' Pt 31XL Torch 0558002612 Questions & Answers
ESAB Handyplasma 550 XL31 is
Hi, when this happens it is usually a problem with the, electronics, often some, one? of the high power semiconductors, often the output ones, and it can often be a thermal cut out problem, however without actually testing and troubleshooting it's pretty hard to tell? These type of issues are among the most difficult to analyse, it's always easier when a device has failed completely, as this make finding the fault more clear cut.
Most often board replacement is the only way to repair, board level, & component replacement unless very skilled, is difficult so board replacement really is the only way to go. This is why one MUST get a service manual, if only for the parts numbers.
If you insist on DIY then you must obtain a service manual, use this and work through the troubleshooting procedures to try your isolate the issue.
Otherwise get a "Quote" from a professional, this way at least you can be appraised of exactly whats wrong, and also prospective costings and go from there?
Powers on airs on air
inside the unit their is a part witch looks like a spark gap and that is what it is if this part gets dirty of has like a magnetic fuzz in it it will need to be cleaned as well the gap should be reset you will need to contact the manufacture for the specks do to different units have different settings wile you have the side off look for lose connections as well as arking marks for passable shorts their is a variety of things that can go wrong with thease units but what i said is most common do not use high pressure ari to blow clean a metal chip can damage transformer windings and then short out be careful of capacitors they can hold a nasty charge and aslo can be lethal if your not sure i highly suggest you take to a service center for the unit you have hope this helps.
Pulsating Arc
Sounds like one or two of the power diodes are defective (open), producing a half wave pulse instead of full wave, giving it a dotting effect.
Cutmaster sl101 not working
There is a resettable breaker inside the machine that cuts off power to the plasmahead when tripped. Check that and make sure the head is secore to cable and cable is secure to machine.If it still fails to function check the coil in the contactor to make sure it has not burned out. Also check the pressure switch to make sure it closes contacts to make the circuit when the unit is pressurized If switch is not functional the head will not operate. Also check gas solenoid or solenoids to make sure they do not have burned out coils as well. An Ohmmeter should show about 2000 ohms give or take some. The main contactor winding also. It may be the main contactor needs replacement- a loose power connection can lead to burned contacts. So if you hear the machine click when you press the trigger, but no power to head, and all the other items mentioned still leaves you with no power at the head, that main contactor is the likely culprit.If IGBT's had failed- they would blow apart part of their plastic case.So a quick visual is usually adequate for those.
Burned resistors
I have the same problem with the Mighty Mig...Did you find these resistor values?
Century 100 wire feed welder free download manual
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Deltaweld 350 with help 700 code ?
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