discon batt &alt

[pop larkin]

hello fello welders
got roped into welding up a chassis leg on a friends transit not sure if im going to lose radio code if i disconnect batt and alternater ? any help appreciated
pop

 

[the snooper]

ive never disconnected battery or alternator and never had any problems just make sure you have a good connection close to the area you are welding

 

[Flapdisk]

They say you should disconnect mate, but electronically the circuit is through the torch and the small amount of body to the earth lead and the welder so there is no real reason to, I guess if you were really really unlucky you might get some transient spike travel somewhere it shouldn't and damage something, but like water, electrickery finds the shortest path to ground and that would be your nearby clamped lead

 

[langy]

I've always disconnected the battery and alternator and never had a problem, its not like it takes long to do it is it.

 

[zzr1200]

Don't disconnect the battery unless you know the code, mind you, I seldom if ever disconnected the battery, place earth clamp close to the point of welding on good clean metal.

 

[hillbilly234]

be carefull,if its a new transit,just putting jump leads on them can cause thousands of pounds worth of electric box damage.(so ive been told)

 

[dannyp]

thats crap if thats true, everyone is allways jump starting stuff with the transits if the new ones cant do it going to have to buy sosmethgin diffrent next time round

 

[pedrobedro]

that's crap if that's true, everyone is always jump starting stuff with the transits if the new ones cant do it going to have to buy something different next time round

Why not carry a spare battery or a starter pack instead of condemning them because of something you do once in a blue moon.

I usually just remove the earth lead from the battery when welding anything.

 

[Wendelspanswick]

Funnily enough it was only on an old car that I got caught out by welding and not disconnecting the battery earth, a MK IV Triumph Spitfire. I migged up the boot floor and when I started the car the charging light stayed on. Blown diodes in the alternator so now I always disconnect the car earth.

 

[the snooper]

be carefull,if its a new transit,just putting jump leads on them can cause thousands of pounds worth of electric box damage.(so ive been told)

the transits have a point under the bonnet specifically for jump leads due to the battery being under the drivers seat so if that was the case there wouldn't be those connection points

 

[landyman1]

be carefull,if its a new transit,just putting jump leads on them can cause thousands of pounds worth of electric box damage.(so ive been told)

working in a main dealer any incorrect use of jump leads MAY cause damage on any modern car/van.
these days never connect both leads direct to batt,positive ok but use a good earth point on engine or chassis for negative.most owners handbooks have advice on this

 

[DrNik]

How come birds don't die when they land on overhead lines, because they don't, just like the battery and alternator when welding, unless your welding onto one of the connections leave it alone, it will actually help

 

[Old Dog]

Sorry I've got to disagree about the battery issue, always disconnect the leads, in the last 10years I've replaced enough ECUs because of welding and bad jump starting/boost charging that the first thing I do now is disconnect the leads. I would much rather be safe than sorry, £5500 worth of ECUs per vehicle on 3 vehicles all by the same person in one week' Oops sorry I think I would rather remove the leads.

 

[hillbilly234]

i rest my case.