A silicone based lubricant is normally required for plastic to plastic surfaces Mike but as a temporary measure I have had a lot of success with Pledge furniture polish.
Spray a dollop of the polish onto a a jar lid or the like, wait for the solvent to evaporate then pick up a small amount of the residue with a toothpick or similar and apply it to the protrusion in the crank hole then work the protrusion to get the polish into the protrusion housing. Use only the smallest amout to get the job done, you don't want anything other than film to get into the inner chamber. Hope this helps.
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