Focus problem In Canon Macro lens EF 180mm 1:3.5 L

This Canon Macro lens EF 180mm 1:3.5 L had some Focus problem, because the auto focus did not work, it could only move very, very little. The focus ring did not work, and it looks like something was stuck in the lens, so I guess the lens has been dropped.
When I take off the front barrel with the scale meter windown, something has loosen up and then the focus came back to working again, not only one time, but many times that was a big success :-)


Here are some link's to different repair tool's and lubricating stuff:


Clamp tools:

https://www.ebay.co.uk/itm/3640379611...


Flex-I-File:

Ultra Fine Needle Piont Scriber #6114
www.flex-i-file.com
www.alphaabrasives.com




Dental instruments are:

Hollenback Carver


“plastic instrument” (a.k.a. stellite)



Wall’s carver.






"ORBIT" HEPA Blower:

https://photosol.com/products/orbit-h...

You can buy it here:
https://www.adorama.com/cpkhjdb.html




"Liqui-Moly" LM 50 Litho HT:

https://www.amazon.co.uk/Liqui-Moly-L...



"Liqui-Moly" LM47 MoS2 grease with Molybdenum disulfide:

https://products.liqui-moly.com/lm-47...



or on Amazon:

https://www.amazon.co.uk/Liqui-Moly-3...




Contact glue:

https://www.loctiteproducts.com/en/pr...




Japan Hobby Tool rubber cone:

https://www.amazon.com/Japan-Vacuum-C...



18 different size rubber repair tool's:

https://www.amazon.com/Sizes-Lens-Fil...



You can also buy this set.

Lens Repair Set with pointed, flat, half flat tips:


https://www.amazon.com/dp/B00QRPWCN0/...



JIS cross head screw driver's:


https://www.amazon.com/Moody-Tools-58...


Or this set, that is the set I use:


https://eustore.ifixit.com/en/Tools/D...



Lens cleaning wipes (PEC-PAD):


https://www.amazon.com/dp/B0161VIZZ8/...



Thin Cotton Buds x 200 you can buy them here:

https://www.muji.eu/pages/online.asp?...



DSLRKIT Pro Lens Vise Tool Repair Filter Ring Ajustment Steel 27mm to 130mm:


https://www.amazon.com/DSLRKIT-Repair...


Japan Hobby Tool Helical Grease Made in Japan:

https://www.amazon.com/Japan-Hobby-He...



Loctite 222 50ml Threadlocker

https://www.amazon.com/Henkel-Loctite...