Grease guns are one of the most important tools in your garage or workshop. You can’t build without them; you paint, you weld, you’re not building unless there’s some way to put those stubborn marks right where they belong. The key to using a grease gun correctly is understanding how to use it and knowing what its limitations are.
The secret to using grease guns correctly starts with understanding what each gun is capable of. There are basically two types of them – the rotary and the piston type. Rotary type is typically used for mixing air with the oil in a cylinder and pumping the mixture into a pan that contains a piece of metal (the old cartridge/holder) that you’re going to want to seal up. To use the gun you just pull it out, load the gun with oil, cock the action and push the plunger down.
Now you’ve used a good amount of your tooling time and you have enough oil to get the job done. What now? Well, you’ll need to load the next layer of lubricant onto the old cartridge/holder and your gun should now run smoothly. If this doesn’t happen, then you either ran out of lubricant or the old cartridge is completely ruined. This usually happens if you’re using the grease guns in an open area such as an old outbuilding. With open spaces like these you’re at greater risk for running out of lubricant.
Next we’ll take a look at the other type of grease gun, the piston type. A piston gun works much the same as the rotary type, but instead of loading the oil into the hopper, it loads the grease into the barrel. To use this gun you load the grease into the top of the barrel and then crank the handle to move the barrel around. When you’re done, you simply crank the handle and the barrel spins around as it pumps the grease through the air. The nice thing about these guys is that they don’t require any air pockets, which means there’s no chance for air to seep in between the walls of the barrel and the grease or lubricating oil.
If your gun uses an air compressor, you might also want to look into purchasing a grease gun with an air compressor sleeve. These sleeves are available in various sizes so that they can fit both the small (low-profile) air compressor and the larger (high-profile) high-profile air compressor. An air compressor sleeve will allow you to continue to run your air compressor without having to constantly refill it. This is especially useful for small jobs, such as cleaning up an old vehicle or similar projects where it’s more practical to have a constant supply of lubricant rather than an occasional refill. This saves you a lot of money and time.
Most grease guns use a standard sized air hose with a thin tip. However, if your gun uses a high-end, high-pressure air compressor, it’s possible that you won’t be able to get your grease gun to spray very far. This is because high-pressure air compressors have very large tanks and tend to be more difficult to control. If your gun doesn’t have a high-pressure air compressor sleeve, you may have to obtain one separately. This can easily be done at your local paintball supply store.
You’ll also find that some newer, more innovative hand-lever grease guns use technology that allows them to work with less effort than standard lever action guns. This type of hand-lever is made up of two pieces: a “throat plate” (also called a trigger) and a long, flexible hose with a tip on one end. In order to use the grease gun, you simply apply grease to the end of the hose and push down on the trigger. The mechanism then pulls the plate toward the nozzle, which causes it to expand until it reaches a state where it seals off.
One final note on grease guns: if you run into a jam, there is a safety mechanism in place that causes a low-powered, low-pressure saw blade to shut off if you apply too much pressure on the trigger. To activate this mechanism, turn the knob or flip switch on the side of the machine back toward you. You’ll also see a red LED light on the side of the lever. If you happen to apply too much pressure, the LED light will turn red until the plate gets close to the nozzle and then turn off.