How to unlock a stuck FELCO rotating handle

What you'll need:
Scotch Brite
A dry rag
Lubricating oil (sewing machine oil)
Instructions:
1- Remove the handle
2- Scrub carefully the rotating handle axle with scotch brite
3- Clean the axle with a dry rag
4- Lubricate the small sphere placed towards the tip of the axle
5- Insert the handle again