Now that you have all solved the first problem (bleeding the air out of a new grease gun)let's attack the second problem with new grease guns. I'm talking about getting the darn tip off a grease zerk. it will very likely stick and put you through h*ll when you try to pull it off the zerk. Solution: loosen the tip by unscrewing the barrel (at tip).
They tend to go on easy and hold like heck when you try to take it off.
rimshot ( trying to take a proactive approach)
They tend to go on easy and hold like heck when you try to take it off.
rimshot ( trying to take a proactive approach)