/ FEL lubrication - has to be a better way #21
I'm sure L&L and battery grease guns are great, but you can get by with what you have if you adjust your coupler properly. The end collar on couplers are screwed on and adjust similar to a drill chuck. When they are adjusted properly, they pop onto a zerk and allow you to pump the gun without holding the coupler. If they are too tight, they are difficult to remove. Too loose and they pop off while pumping grease. When you know how easy they are to adjust, you can tell as you pop the coupler onto a zerk if it needs a slight turn to tighten or loosen its grip before pumping. Unfortunately many people don't realize that end is adjustable.