Huret Challenger Shifter service ?
 

So I've searched and found documentation on the RD and FD. Going over the DT shifters too.

Once I finish cleaning and polishing these where would you lube? Anyplace other than the barrel they mount on?

It's 20f. outside so I'm going to go get some miles in but when I get back I'm going to put these back together. Just wondering from the pro's how they'd service them?

Here's an exploded pic of them with the parts in order.

https://cimg9.ibsrv.net/gimg/bikefor...ba0aa0a01c.jpg
These levers are pretty but also fairly heavy compared to most I've dealt with.

I have a bike with a set of these, they are heavy but have decent ergonomics.
I would apply a film of grease to the copper washer, the pivot stem and a thin film to the dark cupped washer just to keep rust at bay.
light grease on the threads.
the spring in the system will keep the tension.

I agree, lube everything.

I'm often in a rush so will typically use plain motor oil on the threads, pivots and washers, and which seems to last a few years if not more.

Lubed and back together. Thanks!

One caveat to the above information. I would not apply any lubrication to the white washer on the friction plate or any surface that comes into contact with it, as it appears to to be Teflon or some other form of friction reducing plastic. Lubrication can make these too slippery and make it difficult to adjust a proper level of friction. Lubrication may also cause breakdown of the material.

I agree, and that's how i did it. No grease on the disk or the mating surface of the lever itself.