I've struggled for years to grease the CV joint on our bushhog because of how the CV guard is made. Even with the greasing holes it's still hard to do. I stumbled on a video that sure made me feel dumb yesterday. The guy in the video turned the plastic guard until he found the red tab and then pulled the red tab to release it. After this he held one of the 4 white tabs in place by hand and twisted the guard until the white tabs released ( about 1/8 turn). Once released the guard pulled back exposing the CV joint and zerks. Took about a minute to take loose and reinstall when I tried it yesterday. I might be the only one didn't know this but maybe it'll help someone else too.