Did a search before this post but did not find anything related to my Zerk problem. My 60 inch MMM has plastic anti-scalp/bogie wheels with "pressed in" grease fittings and everytime I try to grease them the Zerks pull out when I try to remove the grease gun hose. Doesn't make any sense to push them back in when they will just pull out the next time I attempt to grease so anyone else have this problem and if so how did you solve it? I considered trying to screw in some threaded replacements but thought I would pole the Fourm first. Thanks