Plasma not cutting.

[trikevw]

Got a sip 46 plasma and it’s not cutting , changed tips , got good air pressure clean earth , clean steel cleaned earth lead , still not cutting its sparking at the tip but it’s not a strong enough arc. I’ve videoed it but I can’t attach it to thread. That’s on max power

 

[Erie Fred]

Got a sip 46 plasma and it’s not cutting , changed tips , got good air pressure clean earth , clean steel cleaned earth lead , still not cutting its sparking at the tip but it’s not a strong enough arc. I’ve videoed it but I can’t attach it to thread. That’s on max power

The weak arc is usually the pilot arc.
Yours is not transferring to the main arc.

 

[trikevw]

The weak arc is usually the pilot arc.
Yours is not transferring to the main arc.

Thanks for the reply,So what do I need to do to get it to work

 

[Erie Fred]

Thanks for the reply,So what do I need to do to get it to work

Eddie49

 

[trikevw]

Eddie49

?

 

[Erie Fred]

?

Eddi is very good at troubleshooting, and will walk you thru it.

 

[tigdlo]

I have no experience with your machine but on others the pilot arc returns current through the torch lead until it detects current through the main return/earth lead then fires the main arc. I would be checking the earth lead and connections externally first then internally, be aware of high voltages, even with the machine turned off capacitors could still be charged.

 

[Seadog]

Eddie49

Corrected for you...

@eddie49

 

[eddie49]

It is possible that the main high-current power section has failed. However, often the high-voltage high-frequency circuit that provides the pilot arc is driven by that main power section... Anyway, there are general troubleshooting hints about plasma cutters in Post #12 of this thread:

P

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• philp aldworth
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• forum: Welders and Welding Machines