Buy a syringe 1cc
Extract Wipe and Shine and slowly sprinkle on the joint. Or if you are skilled enough, philips screw driver, disassemble and check.
SEIBERTRON - Your Planet For Everything Transformers
https://www.seibertron.com/energonpub/
https://www.seibertron.com/energonpub/viewtopic.php?f=4&t=107171