My Power Plasma 50

[jtybt]

Holding air now. Starting cutting fine then stopped. Everytime I press the trigger, the air pressure in the torch hose goes to zero and no arc.

[jtybt]

Tried it again. Nothing. Post flow timer doesn't work either. Flows about 15 sec no matter what setting. Amp control has no effect on torch.

Pressure regulator isn't working either. Pressure stuck on 60 PSI.

[geezer]

Tried it again. Nothing. Post flow timer doesn't work either. Flows about 15 sec no matter what setting. Amp control has no effect on torch.

Pressure regulator isn't working either. Pressure stuck on 60 PSI.

are you sure you are pulling out the reg knob to turn the regulator, that knob is one hellva tough knob to pull out. Check you ground connection at the machine, I had a similiar issue. the reg knob can drive you nuts. try pushing it in and then pulling it out etc.

[jtybt]

Yeah, the air flow reg knob is a bitch. I leave it out. It doesn't turn when pushed in.

[geezer]

Yeah, the air flow reg knob is a bitch. I leave it out. It doesn't turn when pushed in.

The pushed in position is the locked position, it can only be adjusted in the out position. I leave mine out as well, Question ?? what hoses were leaking and had to be recrimped , are we talking in side the machine or out side on the air cleaner etc. The air pressure setting from the compressor is not supposed to exceed 80 psi. if I remember correctly. I remember reading that somewhere in the instruction manual.

[jtybt]

Compressor is set at 80 PSI and the plasma is stuck at 60 PSI...but that's not the problem. There is no arc or pilot arc. I hear a solenoid in the machine and all air pressure in the feed line to the torch deflates.

The air hose to and from the air pressure dial was leaking but took a re crimp fine. The hose to the'solenoid'(?) blew off so I put a small hose clamp on and it held.

After these fixes, the torch fired and cut two spot welds off and then stopped with the deflate of the air supply to the torch.

I called Mike a couple times and missed him. He called me today and I missed him.

Got a hold of mark and he suggested the hose clamps...but they have to be modified(bent) to close on a 5/16" hose.

[geezer]

Interesting problem, could be a sticking relay/bad relay connection, or perhaps the consumable is pitted and welding it self to the tip, the pilot arc torch has a sliding tip on a spring, anything gets in there could give you a problem. My problem occured when I used a fellows compressor that was loaded with water from not draining it regularly, the little filter grabbed a teaspoon of water in two minutes of use. Used my own compressor and the problem stopped.

[Ray]

Not to jump in here, hopefully you’ve heard from Mike. The unit will shut down the arc if there is not enough air flow, for safety. From what I’m reading it sounds like you have a restriction in the air line to the solenoid, I’d take a good look at the regulator or air line to it. Look for Styrofoam in the reg. inlet. Also look to see that the regulator is not coming unscrewed at the body (from turning the knob). Hope this helps.

Ray