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05-25-2009, 05:51 PM
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#1
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Senior Member
Join Date: Jan 2008
Posts: 161
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Welding on Coach
I'm going to have some welding done on the steering gear bracket. Do I have to disconnect the house batteries? Before I remodled my battery compartment, I had a yellow warning sticker that said to disconnect something (?) prior to welding on the coach. Might be the electrics to the transmission?? Can anyone tell me what I have to disconnect. Thanks in advance. Hax
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HAX
2003 ALPINE 40FDTS
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05-25-2009, 06:11 PM
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#2
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Senior Member
Alpine Owners Club
Join Date: Jun 2003
Location: Ontario, CA USA
Posts: 1,402
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Hello HAX:
I have welded on my 2001, 38’ Alpine with no problems. I would make sure the ground is next to my weld. I also place both the Battery Disconnect switches in the off position and disconnect the Power cord and make sure the inverter is in the off position.
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05-25-2009, 07:20 PM
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#3
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Senior Member
Join Date: Jun 2005
Location: Abington, PA
Posts: 1,103
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Welding on the steering bracket
Hax,
I would give some concern as to your propane tank as it is right next to what you are going to weld. When I welded my coach I used large exhaust fans, welders blankets and soaked everything around the propane tank with water. It all came out ok as I am writing this letter to you, with 2 fingers mind you. (no just kidding) I have at least 4 left. Not funny.
Ted
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Ted & Carol Ulmer
2005 Alpine 34', 34FDDS
2006 PT Turbo pusher
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05-25-2009, 08:49 PM
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#4
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Senior Member
Tiffin Owners Club
Join Date: Jun 2006
Location: Southern California
Posts: 1,808
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Hax, just wondering is your steering gear bracket cracked or broken? I have a friend who has a 2001 Alpine also.
Sammie
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2015 Tiffin Bus 37AP
2022 Jeep Grand Cherokee
"A Job Begun is Half Done"
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05-28-2009, 12:09 AM
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#5
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Senior Member
Alpine Owners Club
Join Date: Aug 2007
Location: Long Beach, CA
Posts: 1,563
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I've been told to disconnect (completely) the batteries (house and chassis) and the inverter, before welding. However, I rarely see it done. The welding ground should be as near the work as possible. The reason for disconnect is to prevent the welding from grounding back through your electronics and batteries.
__________________
2003 Alpine 40FDTS (400HP)
Long Beach, CA
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05-28-2009, 05:59 AM
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#6
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Moderator Emeritus
Ford Super Duty Owner
Join Date: Aug 2000
Location: Bryan, TX when not traveling.
Posts: 22,948
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There is always a slight chance that you can get an energy spike that will feed into the electrical on the chassis. I would disconnect the batteries, Inverter and possibly disconnect the computer.
Ken
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Amateur Radio Operator (KE5DFR)|No Longer Full-Time! - 2023 Cougar 22MLS toted by 2022 F150, 3.5L EcoBoost Tow Max FX4 Lariat Travel with one Standard Schnauzer and one small Timneh African Gray Parrot, retired mechanical engineer
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