I-50 rigid relube

[DaveP]

Hello,
I ve got my I 50 rigid apart , the front and rear elements removed and the focusing barrel. I dont see how to remove the front end to lube the aperature ring? anybody have this lens apart??

 

[wolves3012]

Hello,
I ve got my I 50 rigid apart , the front and rear elements removed and the focusing barrel. I dont see how to remove the front end to lube the aperature ring? anybody have this lens apart??

I've seen a page somewhere on the net to CLA the I50 but I can't think exactly where - doesn't Jay's site have that page?

If I find it I'll get back to you, unless someone else chips in first...

 

[Screwy]

This is the one your thinking of I think 😉



Paul

 

[DaveP]

Good page, but he stops right where im at, doesnt take out the front of the lens to lube the aperature ring!

 

[DaveP]

Ok, figured it out. I usded a big rubber stopper and twisted the aperature ring counter clock wise and the works screwed right out. I was looking for a grub screw that wasnt there.

 

[w3rk5]

I'm glad you figured it out cause I was stuck there too. Thanks for posting the solution.

 

[SCOTFORTHLAD]

This is the one your thinking of I think 😉



Paul

V.Useful page,what is the main site address,anything else of interest?
Brian.

 

[DaveP]

Its tom Tigers page, hes a member of one of the other boards and hosts a Zenit group.

http://www.xs4all.nl/~tomtiger/index.html

 

[Xmas]

Brian

try

http://www.xs4all.nl/~tomtiger/zenrep/

Noel

 

[Stu W]

Here's another.
http://www.pentax-manuals.com/repairs.htm

 

[Malcolm_J]

What is the advantage of using silicone grease? Why is that better than mineral bearing grease?

 

[Screwy]

I think the general opinion is that silicon grease tends not to creep or out gas like mineral automotive grease , though don't bypass the local car spares shop when looking for silicon grease as its used in rebuilding hydraulic brake calipers so they may just stock it .



Paul