Quote:
Originally Posted by Filos Hippos
Hello all.
The beams/rails that support the watertank on my 2016 FR Legacy 340BH are bent and need replacement.
Which precautions should I take before welding on this motorhome?
Does it matter which type of welding? MIG vs TIG?
Some say to leave batteries connecties to protect circuits from power surge.
Others say: disconnect every connection which is nearly imposible...
Offcours I will make sure I have a good and bare metal ground connection near the welding area.
Will that do?
Any experience with this?
Thanks a lot.
I do not want to harm electronics in ECU and transmission...
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Before doing any welding on the coach frame you might want to contact the manufacturer of the chassis. Many truck frames often have "NO DRILL, NO WELD warnings on them as they are heat treated.
Even if not, welding on a frame (again, if not prohibited) is more than just running a bead here or there and calling it good. You don't want to create stress risers that will eventually lead to cracking. Unless you are an accomplished welder and understand things like "hydrogen embrittlement" I'd first avoid welding to the frame or if you insist, have a professional welding shop do the work.
As for worrying about electronics, if the ground connector is close to the weld area, no issues at all with the electronics. Current will flow through the shortest path.
And Yes, I've had some experience with this
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