Looks like you've lost a retaining clip off that pin. If the grease fitting is broken, it'll be better to remove the pin and fix it. Turn off the tractor and release any hydraulic pressure. Pull the pin out. It shouldn't be hard, and be prepared to catch that end of the cylinder. Wipe off the pin and remove the zerk, if it's broken. Most are screwed in, but some are pressed in. You can take the pin to a parts store and get the proper snap ring and grease fitting. Reassemble and grease it.I went to do my regular 10 hour greasing today and notice this one popped out. I tried to lightly hammer it back in but didn't do the trick so I figured I'd ask if anyone knows how to fix?
Thanks
View attachment 151401
My guess is outrigger for a backhoe.What is this on?