Lubricating transformer shunt blocks

[NTOLERANSE]

On my Linde 300 utility welder, the shunt blocks in the transformer were very dirty. The welder had sat for some time and the sliding blocks were covered in a sticky greasy mess. The welder make alot of humming noise to my ears and I am wondering if I need to clean these and relube them. What should I lube them with? I cleaned them with contact cleaner, then let it set for some time, but I think they should have some sort of grease.

Also I need to replace the cooling fan. Any suggestions for upgrading the fan?

Thoughts?

Thanks, Doc.

[Sandy]

NAPA (Balkamp) Sil-Glide. It's a lubricant, acts as a moisture barrier and has a high drop temperature so it'll stay where it's put and won't run or creep all over everything else.

You can get it in a moderate sized tube, so it's easy on the pocket book and can be used for a lot of small applications.

[NTOLERANSE]

Awesome!

I already have a tube that I use for brake caliper slides.

Thanks!