KIT (Armature Assem.) Q 3A1867 - Caterpillar

Do not use electrical components (ECM or ECM sensors) or electronic component grounding points for grounding the welder.
Illustration 1 g01075639
Use the example above. The current flow from the welder to the ground clamp of the welder will not damage any associated components.
(1) Engine
(2) Welding electrode
(3) Keyswitch in the OFF position
(4) Battery disconnect switch in the open position
(5) Disconnected battery cables
(6) Battery
(7) Electrical/Electronic component
(8) Minimum distance between the component that is being welded and any electrical/electronic component
(9) The component that is being welded
(10) Current path of the welder
(11) Ground clamp for the welder
When possible, connect the ground clamp for the welding equipment directly to the engine component that will be welded. Place the clamp as close as possible to the weld. Close positioning reduces the risk of welding current damage to the engine bearings, to the electrical components, and to other components.
Protect the wiring harnesses from welding debris and/or from welding spatter.
Use standard welding procedures to weld the materials together.