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Old 10-23-2012, 09:09 AM   #1
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Welding on motorhome, precautions?

I'm going to have some modifications done to the Reese hitch on our motorhome that will involve some welding. What precautions need to be done to protect the electronics in the motorhome? Thanks.

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Old 10-23-2012, 09:19 AM   #2
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Unhook the grounds on house and coach batteries.
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Old 10-23-2012, 09:20 AM   #3
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i would start by making sure nothing is powerd up IE propane detecter
perhaps a physical dissconnect ot bothe house and chassis batteries would put your mind at ease
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Old 10-23-2012, 09:38 AM   #4
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Also ground clamp as close as possible to the weld area.
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Old 10-23-2012, 09:52 AM   #5
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There has been a lot of discussion about this in the past. There is a warning from Allison about frame welding damaging the electrlonics in the transmission. I would call Allison and confirm what has to be done before I attempted any frame welding.
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Old 10-23-2012, 10:03 AM   #6
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If you are using a tig or an AC welder, i would in addition to the above also unplug the ecm and any abs you may have. IMHO the most important thing is to have the ground clamp as close as possible to the area you are going to weld and to have both the area where the ground and the area where you are going to weld clean and bright. An ounce of prevention etc.
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Old 10-23-2012, 10:38 AM   #7
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Unplug the batteries, house and engine. Turn the breakers off.
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Old 10-23-2012, 03:53 PM   #8
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Arc welding can indeed damage on-board computers and control modules. As has been suggested, disconnecting both the house and chassis batteries will make sure nothing is powered up. Disconnecting the ground is the safest.
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Old 10-26-2012, 08:35 AM   #9
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Thanks for all of the suggestions. I've decided it is easier to just remove the hitch to weld on it. Thanks.

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Old 10-27-2012, 10:04 AM   #10
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Thanks for all of the suggestions. I've decided it is easier to just remove the hitch to weld on it. Thanks.

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