ELBOW 0055542 - Caterpillar

Do not turn off the battery disconnect switch until the indicator lamp has turned off. If the switch is turned off when the indicator lamp is illuminated the Diesel Exhaust Fluid (DEF) system will not purge the DEF. If the DEF does not purge, DEF could freeze and damage the pump and lines.
Do NOT use electrical components (ECM or sensors) or electronic component grounding points for grounding the welder.
Clamp the ground cable from the welder to the component that will be welded. Place the clamp as close as possible to the weld. Make sure that the electrical path from the ground cable to the component does not go through any bearing. Use this procedure in order to reduce the possibility of damage to the following components:
Bearings of the drive train
Hydraulic components
Electrical components
Other components of the machine
Protect any wiring harnesses from the debris which is created from welding. Protect any wiring harnesses from the splatter which is created from welding.
Use standard welding procedures in order to weld the materials together.