Andy has laid it out, but a quick summary about using grease guns.
2 conditions are required
1- an entry port and compatible gun
2- an exit point, either a hole at the other end, or bleed room at bearing seals.
__________________
FB
Chain-L site
An ounce of diagnosis is worth a pound of cure.
Just because I'm tired of arguing, doesn't mean you're right.
“One accurate measurement is worth a thousand expert opinions” - Adm Grace Murray Hopper - USN
WARNING, I'm from New York. Thin skinned people should maintain safe distance.