Sherman Tig (Jasic in disguise?)

[decca]

First chance I’ve had to use my Sherman today. I bought a pedal with it, am I doing this right to connect the pedal.
Switch on the machine, set to 2t press the pedal for 6 seconds until you get three beeps.
It seems to work but when I press the pedal for 6 seconds the machine makes a noise like it is trying to start the HF arc. (The Jasic manual says do it in “Idle load mode” ?? )This cannot be good for the machine, is that normal?
Also if you switch the machine off it doesn’t remember it has a pedal attached and you have to do the 6 second press again.
Does all this sound correct?

Tried to google it but no joy. Any help appreciated.

 

[DavidL]

Hi @decca that all sounds correct (or at least just like mine!). The HF should stop after a few seconds of no arc - I think this does happen before the pedal beeps occur.
As you say, power off and it "forgets" the pedal was attached.

 

[decca]

Cheers @DavidL
As long as it’s normal I’ll crack on.

 

[PSweeney]

I’ve adapted a CK17 onto mine and I’m getting gas contamination/ porus weld. I’ve got the bayonet on the back, doesn’t seem to leak, the front is an M10 conical hose barb with a jubilee clip into a dinze connection and 3/8 CK hose. All of it seems to be tight and leak free, but it’s unusable on DC ? Any suggestions?

 

[Tangledfeet]

I’ve adapted a CK17 onto mine and I’m getting gas contamination/ porus weld. I’ve got the bayonet on the back, doesn’t seem to leak, the front is an M10 conical hose barb with a jubilee clip into a dinze connection and 3/8 CK hose. All of it seems to be tight and leak free, but it’s unusable on DC ? Any suggestions?

First thing I'd confirm is gas flow at the tungsten itself using a 'pea shooter' flow meter, one with a rubber cone that will seat it on the end of the torch.

 

[Ruffian]

Used mine in anger the other day.
200amps ac on some 3/4" x 1/4" alloy flat.

Burnt in rather well.
And still running off a 13amp plug

 

[Hmac]

Can any 1 shed some light on there aluminum settings
Mainly the balance and hz
The machine goes -35% to +35%
I've played with it quickly in the -25-30% Mark and 100hz wich seemed to work but am getting wide wandering arcs

Using a stubby 8 ceramic
1.2 2% lanthenated tungsten
Not added filler yet as I don't have any

 

[Misterg]

The machine goes -35% to +35%

Pretty sure mine* goes something like 15% - 85% for balance (not +/- anything). Seems to work for me (as a newby) in the 30-35% range. (Which I guess would be -15 to -20% on your scale.)

*Also a 206P AC/DC

 

[Ruffian]

Drop the hz down to 60ish.

 

[Mark 2]

Pretty sure mine* goes something like 15% - 85% for balance (not +/- anything). Seems to work for me (as a newby) in the 30-35% range. (Which I guess would be -15 to -20% on your scale.)

*Also a 206P AC/DC

This is correct but I'm not entirely sure what it means in real terms.
Is 50 the balance?, ie, 50- 35=15 / 50+35=85

 

[Misterg]

Is 50 the balance?, ie, 50- 35=15 / 50+35=85

It's what I've assumed (it makes sense mathematically), but not 100% confident.

 

[Mark 2]

It's what I've assumed (it makes sense mathematically), but not 100% confident.

Just went down the shed to get the (jasic version) manual and see the balance (on mine) now only goes up to 65. More investigation tomorrow.
Not much mention of balance in the manual.

 

[Misterg]

Just went down the shed to get the (jasic version) manual and see the balance (on mine) now only goes up to 65. More investigation tomorrow.
Not much mention of balance in the manual.

The (Polish) Sherman manual says 15% to 85% (as does the technical spec on page 7 of the Jasic JT200DS manual I have).

I've just checked on my machine and the maximum I can set (@120A current) is 65%.
The minimum setting seems to depend on the AC frequency - 15% up to 199Hz and 20% from 200 - 250Hz. (Frequency or current setting doesn't seem to affect the maximum balance setting that I could find, but I suppose there may be other combinations of settings that affect the min / maximum.)

At the moment, though I don't think its of any practical importance to me.

 

[Misterg]

I've just checked on my machine and the maximum I can set (@120A current) is 65%.

Further fiddling: Maximum balance setting is 85% up to 99 amps and 65% for 100 amps and above.

Can't think of where I'd ever use this though...

 

[Mark 2]

Further fiddling: Maximum balance setting is 85% up to 99 amps and 65% for 100 amps and above.

Can't think of where I'd ever use this though...

I concour, It seems to pertain to cleaning strength on page 17 (jasic)

 

[Hmac]

Thanks chaps

 

[PSweeney]

First thing I'd confirm is gas flow at the tungsten itself using a 'pea shooter' flow meter, one with a rubber cone that will seat it on the end of the torch.

was a problem with a collet body, went back to the gas lens I was using and it sorted it .

 

[NickTVR]

So... what do I/ can I do with the empty 8 ltr argon cylinder.

I've had to buy an sgs bottle and new regulaor already

Is there a problem refilling these bottles? I was looking at the full kit on ebay, which seems like god value for £600,

 

[gnb]

Hi, I'm new to TIG welding and have just joined this forum having bought a Sherman 210. Apologies if I'm covering old ground but I haven't managed to read all 94 pages!

I've been trying various settings to try and understand the effect they all have. The first thing that had me puzzled was that when I plug the foot pedal in the amps display just shows 10/11 amps. I now realise having read a Jasic manual and watched the Sherman video that it is necessary to operate the foot pedal to see the maximum amps. This will be like this, I assume, as it will also take into account the setting of the control on the pedal.

The part I really confuses me is the down slope time. The range is from 10 to 25 secs but having done some tests it appears that 25 secs is only possible with 200 amps welding current and 10 amps start current. It appears the slope is fixed at 7.6 amps per second. So if the welding current is set to to 100 amps & down slope to 10 amps the max down slope time is 12 secs and similarly for lower welding currents or higher starting currents.

This should not be a problem as I'll probably usually use the foot pedal but I wonder if others welders are the same?

 

[Tangledfeet]

Apologies if I'm covering old ground but I haven't managed to read all 94 pages!

You're not covering old ground; you're trying to break new ground - in the wrong place!

This thread is for discussion of the Sherman 206P, which is a Jasic clone. You'd be best starting a new post in the TIG welding machines general section; you'd more likely get a response from a wider audience too - and it keeps this ongoing thread tidier as it keeps discussion to the 206P.