Hey guys had a question about clogged or non working grease zerks. some times on our backhoes or skidders, you get those few zerks that dont want to take grease. Sometimes its just the zerk that is clogged other times its the actual hole where the grease zerk screws into.... what is the best way to clean this crud out of them besides pulling the pin out completely? or is that the only way? ive tried compressed air, which works some times, but most of the time it ends up in having to pull the pin, degrease it, and put it back in with a new zerk.. which is a PITA.