Torch stops firing mid-cut

Plasma Cutters
1

I have a Razorcut 45 (with the original style torch), I have cut a lot of stuff on the table with no issues. Today I was mid cut and the torch shut off, almost like it lost a ground and/or continuity. I tried multiple times to re-fire the torch but with no success. I pulled the cover off of the plasma as well as the torch head and inspected the wiring and didn’t see anything out of the ordinary. I also checked all of the airlines and they are all water free.

Does anyone have any other thoughts what it could be??

Thanks Blake

2

Consumables? Air? Ground clamp still tightly wired to the ground cable?

Can you fire it using the torch off the table (using the trigger, not Mach3)?

3

That would be where I would start. I have forgot to wire up my ground completely… and if fires np - however, you wont get the proper plasma flow to cut correctly… So, it doesn’t sound like a ground issue. I have had low airflow cause cut out on me. Id give that a good hard look.

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4

I changed all the consumables twice with no change. I have also checked the ground and it is all connected properly. The torch is getting the signal to fire because its starting the air flow but there is no arc. I have also tried different air pressures with no luck there either.

5

To add to your previous question, the torch won’t fire by the trigger or Mach 3

6

Sounds like there is something wrong with the torch. can you check to see if the blowback function is working - i am not sure how to do this but maybe someone can tell you to see if that is stuck.

7

Yeah I agree, it sounds like a torch issue. If it hadn’t fired from the get-go then it could be other things, but the fact that it stopped mid-cut and won’t fire on the table or by hand would have me emailing and calling Razorweld for some warranty support.

8

Thanks for the feedback, I emailed them so we will see how it goes… I am almost to the point of getting another machine. After more research on the forum, a lot of other people are having issues with these machines… Cant afford not to have this machine up and going…

Thanks again, Blake

9

Try this get a clean piece of metal hook up the work clamp and pull the trigger and touch the metal if it fires the pilot arc circuit has stopped working and will need a new pc board

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