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Welding on bucket

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dozerduded6r

Member
Joined
Nov 4, 2010
Messages
14
Location
monroeville ohio
When I welded a cracked tooth on our 315c 4ft dirt bucket it was dark outside so I started the machine up and turned on the lights. Can I damage the computer doing this? Is shutting off main disconnect enough protection or do I need to unhook battery while welding?
 
L

Lee-online

Senior Member
Joined
Jan 16, 2010
Messages
1,023
Location
In a van, down by the river
Cat recommends shutting off the disconnect and placing the ground clamp close to where you are welding.

welding on the bucket, put the clamp on the bucket, welding on the engine, put the clamp on the engine.
 
watglen

watglen

Senior Member
Joined
Apr 3, 2009
Messages
1,324
Location
Dunnville, Ontario, Canada
Occupation
Farmer, drainage and excavating contractor, Farm d
Volvo says same thing, shut off main battery disconnect, and ground close to work.

However, I welded in the house close to the computer once, and i pulled the harness off the computer. I made out fine.

Good luck.
 
M

masterwelder

Well-Known Member
Joined
Jul 28, 2010
Messages
145
Location
NY
We always disconnect the batteries when we weld anywhere on a piece of equipment- and remove them if welding is taking place anywhere near the batteries.

The thing to remember when welding on a running piece of equipment is that while running the batteries are being charged witch produces very explosive gas. If you have ever seen a batter explode you will know what I'm talking about.

Most engine drive welders provide some auxiliary power, so we always keep a lead light on the truck, if your at the shop you could plug the light into the wall receptacle.
 
motrack

motrack

Charter Member
Joined
Nov 23, 2003
Messages
332
Location
Ingalls Indiana
Occupation
field service tech
My experience has been a little different.......

I once blew the engine ECM on a Gradall mine scaler while welding on the ROPS. Batterys were disconnected and my ground clamp was only inches from my welding.
Our Gradall rep told me they recommend unplugging all ECMs before welding.

A New Holland tractor had the transmission ECM cooked when a Alamo boom mower was being installed and welding was performed. Again I was told by New Holland that ECMs should be unplugged before welding.

I have also been told this by our Kobelco service rep.

I DO know once you cook a ECM it gets pricey :mad:
 
R

RobVG

Senior Member
Joined
Jun 20, 2009
Messages
1,028
Location
Seattle WA
Occupation
17 excavators and a stewpot of other stuff
I like it :drinkup

And that way you won't have to hold a flashlight to your helmet.
 
A

Adam Z

New Member
Joined
Nov 13, 2010
Messages
3
Location
Juneau, Alaska
I always disconnect the batteries and remove the "brain" from our Sumitomo SH200 when doing any welding. So far, no troubles.

Adam
 
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