Welding On Class A, Do I Just Disconect The Battery ?

[timmac]

Need a few areas that need welded on my motorhome, such as generator exhaust bracket and some heat shields on headers where the weld has broke, I own a small 20 amp welder and do small projects but never welded on any auto's or motorhomes, have heard the computer can have issues if not grounded, do I just disconnect the RV battery or what.

[mdamerell]

I'd be sure to unplug all electronics and protect the engine's computer as well.

[MRUSA]

You could ruin a lot of expensive electronics if you do it wrong.

[krivanj]

My coach is very exact in the owner's manual on what to disconnect.

[Sully2]

If its a gasser...disconnect the battery. On a diesel....remove cables from the CPU's

[powderman426]

Its not that much work to disconnect. Then your covered. I was just giving my own experience. Be safe.

[timmac]

Yes I have read on welding forums to keep ground near where I am welding, however its a 50/50 on disconnect of battery ground, some say yes other say it don't matter.

[powderman426]

If you feel safer, by all means take a couple minutes and do it. I however have welded on both the truck and fiver without disconnecting and had no problems. A g ood ground near where your welding should be enough.