I have just recieved a Hobart TF 300HF machine. I need to disassemble the Range and Ac DC select switches as the are feeling quite heavy. I know the grease gets old and thick. I plan to clean and lube these switches. Has anyone done this before, what problems should I avoid. What type of greas did you use. I am planing on using some good dielectric grease but not sure what type.
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