Lincoln Electric Welder R3R 300 Code 9698

⚠️ WARNING ELECTRIC SHOCK can kill. • Have an electrician install and service this equipment. • Turn the input power off at the fuse box before working on equipment. • Do not touch electrically hot parts.

Refer to the troubleshooting section “Power Rectifier Bridge Assembly Checking Procedure” if a rectifier failure is suspected.

NOTE: Since proper material and correct assembly procedures are critical, field disassembly of the power rectifier bridge sections can do more harm than good. Return a defective rectifier bridge section (or the entire bridge) to the factory for repairs.

Is the power turned off at the fuse box?

Is the rectifier bridge section defective?

Describe the defect in the rectifier bridge section

⚠️ WARNING ELECTRIC SHOCK can kill. • Have an electrician install and service this equipment. • Turn the input power off at the fuse box before working on equipment. • Do not touch electrically hot parts.

Is the input power off at the fuse box?

Is the probe tip in condition to provide sharp edges at the ends?

Describe the condition of the probe tip

⚠️ WARNING ELECTRIC SHOCK can kill. • Have an electrician install and service this equipment. • Turn the input power off at the fuse box before working on equipment. • Do not touch electrically hot parts.

Fan motor bearings in good condition

Is the welder located in a dusty location?

If the welder is in a dusty location, it may require regular cleaning.

Welder cleaned from dust and dirt

Sign off on the welder maintenance