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Cutmaster A40 Torch Problems

Thermal Dynamics plasma cutter discussion forum.
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Joined: Sun Oct 28, 2012 9:23 am

Cutmaster A40 Torch Problems

Postby smokez1 » Mon Nov 12, 2012 7:58 pm

I would appericate any help with this problem.

I need to find out how to take a cutmaster a40 sl100 machine torch apart.

I was un-screwing the sheild cover and the bottom partof the torch screwed out with the shield.

Screwed the part back up now I get the torch alarm 85 problems.

I must have turned the bottom part too far and maybe pulled a wire loose inside.

I need to take this apart and see.

Just don't know how to get the torch apart..

thanks for any help

or if I could call anyone to help me with this problem.


Posts: 144
Joined: Wed Oct 17, 2012 9:07 pm

Re: Cutmaster A40 Torch Problems

Postby trucutcnc » Fri Nov 16, 2012 12:38 am

You have to unscrew the torch body (long tube) from the torch head (the part that you accidentally unscrewed). To do this, remove the plastic strain relief on top of the torch, remove the metal cover over the air solenoid, remove the air solenoid by releasing the compression fittings on the air lines then hold the torch head and unscrew the body from it.

When you unscrewed the head, you probably broke one of the wires going to the micro switch that senses that the shield cap is in place...Although if memory serves, that should throw a 70 fault. If you unscrewed if more that a 1/2 turn or so, it is possible that you damaged the wires that carry juice to the electrode. If those come in contact with a ground, it will throw an 85.
Ross Carlisle
Jackson, TN

Posts: 10
Joined: Sun Oct 28, 2012 9:23 am

Re: Cutmaster A40 Torch Problems

Postby smokez1 » Sat Nov 17, 2012 4:58 pm

Thanks for the help.

I got it apart and repaired the pip wire, works good now.

Simple afer your advise..
thanks again

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