In the process of greasing my RCR1260 rotary cutter tailwheel, I could not get it to accept grease. Removed fitting and it works but it looks like the threaded portion is long enough to contact the shaft inside the hole. I think the fitting is pressing against the tailwheel shaft and blocking the fitting opening. Is this something others have run into or am I the first to grease the tailwheel? Any way to resolve this?