Review on 🔫 GreaseTek Premium Grease Gun with Pistol Grip, 18" Hose, and Extension Pipe by Charles Lewellen

This is a good one. Many grease gun reviews complain that the end of the coupler will not disengage from the Zerk fitting after lubrication is complete. The coupling terminal has 3 components inside. First, there are small claws that grab the Zerk fitting when you press on it. Next comes the coil spring that presses on the underside of these claws. Further on the other end of the spring is a small bearing. This ball bearing sits in a small hole in the grease hose and stops the flow of grease when the grease gun is idle. When you squeeze the handle and the grease flows, the ball bearing is pushed up, allowing the grease to flow. The problem with this very simple design is that the ball bearing compresses the coil spring that rests on the base of the handles. Thus the claws will not let go as all the flexing of the spring disappears when the spring is fully compressed. The manual doesn't explain it very well. The solution is to control the tension of this little spring. Simply loosen the end of the coupler about 1/4 turn. So easy. When removing the coupling end from the mirror, always move it slightly to the side and rotate it slightly. For easily accessible mirrors, the clutch can even be easily loosened, more than 1/4 turn. You then need to hold the coupler directly against the mirror and press down to keep the grease from leaking out around the mirror. So you can play around with this nerf to get it the way you want. This is why old grease guns work well, the spring has weakened over the years. This product is good because it has an air release valve at the top. You can also route the grease hose to the top of the gun for hard-to-reach places.