Well, some pictures of condition of machine
This is what I saw
when removed this part
So this is view from front side
This is back side of spindle
This is after mechanical cleaning with tiny screwdriver, metal brushes (steel and brass) and with Dremel (I do not have dremel but people call that machine like that, I use it with small metal brushes , do not give impressive results).
I left part like that and put some oil on it and after 7 days I whipped rust (lot of red color on clothe which I used to wipe it) so, last thing that crossed my mind was to try rust convertor for which I can say now it is not suitable for things like you see on this pictures, it is for preparation of metal panel in case there is any rust on them. So I am now little clever and luckily I protected bearing seats with tape and front side of spindle which was in good condition , little fluid succeed to pass through tape but I manged to fix damage with sand paper (1000 granulation and WD 40). I used once rust convertor but that was long time ago so did not know how will look result on shiny thing like spindle. Anyway very important lesson learned , keep it away from machine, it can do nasty things on shiny and nice ground parts.
This is what I got after sanding with sandpaper , WD 40 , dremel and brushes, and dremel and diamond grinding bits, I used my lathe to rotate spindle simultaneously with dremel in action. So last 2 pictures are final result, I can not do any better if I want to preserve barriers on spindle which are relay fascinating, cutting edge remain rust free, all after cutting edge is rusted.
Some other parts that I succeed to submerge in break fluid still look rusty (man who told me for that say keep it 4 to 5 days, I even saw on youtube as a comment suggestion to some guy to try breaking fluid to remove rust) .
Most interesting thing are bearing on spindle, they are not supposed to be moved from spindle and spindle is greased for life time. I learned that after 1 day when I pull spindle apart, I asked few guys on youtube if they have manual but did not got any reply, I found on one forum that one gentleman have manuals and I contacted him and realy like he said in his post he gave it to me in pdf for free, that was really nice thing, because I would probably destroy something eventually, even my intentions are good, just like with cleaning spindle from rust. I realized that front 2 bearing are in pretty good condition, only thing is that I destroyed balls in bearing. That will be for sure my another post.
So