Welding on my new 7400 Workstar

I have no experience in "modern electronically controlled diesel truck" but they say the same thing about modern electronic automobile. While there may be select instances where the welding was blamed for the fault ( true or not) I have a.seen or b. done welding on vehicles without a thing disconnected with no ill affects. If you are that concerned about it get your self some plywood and nylon bolts and bolt an insulator ( the plywood )between the bed and another sheet of steel to weld on( have to use plastic bolts or current goes through the bolts).

 

you will not hurt the computer or any of the electronics on the truck by working off the bed. they suggest you unhook the batteries if you plan to weld on the truck itself. what has happened at sometime or another someone placed the ground clamp for the welder on the front of the truck, such as the bumper and then tried to weld on the frame or a body panel somewhere else on the truck. because of poor connections of bolted panels and corroded connections the current may have went thru the computer circuits. the way to prevent this is to keep the ground as close to the work as possible. been doing this for a few years and have never had this problem.

 

^^^ Explained very well ^^^

 

Helps to connect the ground lead to vise grips and have a secure contact to clean metal. To my understanding the times when you have a bad ground while welding or trying to is when high voltage spikes can be sent through the system. I weld on some company equipment on a regular basis with no problem but disconnect on outside equipment for liability.

 

I have welded on my 2016 international 7600 with no I'll affects as have the mechanics at the dealership, heck the deck was welded to the frame and they did nothing special with the computer, get a good ground to frame and weld away without worry is what I was told.