How To Load A Grease Gun Properly

Do you own any machine shops and garages? Are you run out the grease in your grease gun often?

Grease guns are common essential tools that help you to apply tacky lubricant onto moving automobile components. By lubricating your vehicles’ components properly, you can sustain the life of machines, reduce friction, and prevent abrasions.

Loading a grease gun may seem a little bit messy. But it is almost trouble-free if you follow proper instructions and have a good idea about how a grease gun works. Once you know all the things about how to load a grease gun, it will be easy for you to maintain your machinery. Let’s move forward to find it out.

How do you load a grease gun with a cartridge?

The first thing we just want to mention is that when you store your cartridges, you should always store them with the part that you tear off on the bottom because you actually want the grease to settle in the correct direction. So, it will be uncomplicated for you to change the cartridge by catching up with your gun and just turning it off.

When you follow the right method and pour the correct quantity of grease into your grease gun, your machinery will work efficiently. If you go along with the whole process progressively, you will unearth it facile to fill up your grease gun and use it. We are moving forward with step by step on how to load a small grease gun cartridge.

Step 1: Unscrew the Cartridge Cap

Two main components are used to create cartridge-loaders: the cartridge of grease itself, which is contained in an indistinguishable size and pattern, and the dispenser or nozzle, from where the grease is twisted.

To remove the cartridge, you need to substantially loosen the cap that the cartridge is in by rotating it right-handed direction while rotating the dispenser nozzle left-handed direction. Use some elbow grease when it is screwed tightly. It will support you to turn up the cartridge.

Step 2: Pull Back on The Metal Handle

Next figure out how to pull back the plunger to get the new one in. At the rear end of the barrel, you will notice a plunger when the cartridge comes through the plunger. So pull it out between the two little holes and keep pulling it until the plunger rod is entirely reserved from the barrel.

Step 3: Secure the Piston Rod and Remove the Cartridge

You will be able to move the piston rod in the lateral direction vaguely for most grease guns. So, it can keep its position secure without moving forward.

If you are eager to accomplish a better outcome by lubricating moving parts with a grease gun, then don’t mix up the new grease and old grease together.

Hence, you need to completely pull out all the old grease inside guns before loading the new grease. Old grease not only spoils your handiwork but also damages the grease gun.

Keep the piston rod in the correct place by locking it and then haul out the older cartridge. Change the rod direction a little bit laterally and remove the old cartridge from the grease gun.

Step 4: Insert the New Grease Cartridge

Most of the cartridges come with 14 oz. or 16 oz. size. It is better to clean the gun properly before inserting a new cartridge. Most importantly, make sure to use a specific type of cartridge which is compatible with the grease gun you want to utilize.

When you are 100% sure that the cartridge matches your grease gun, remove the old one and clean your grease gun properly. An old but fresh cloth or rag is enough to clean up the old grease.

Once the cleaning session is done, unlock one end-side of the latest cartridge and place it through the closed side.

Now, at the ending part of the barrel, pressure it by way of the cartridge. Plus, extract the plastic head from one rock-bottom edge of the latest cartridge so that the grease can gush out naturally.

It is better to store grease cartridges upside down to settle it correctly. You can shake it once or twice hardly when you don’t save it upside down. It will also help to resolve it correctly.

Step 5: Reattach the Grease Gun Cap

Next, you should connect the barrel again to the cap of the gun. Make sure to screw it separately by turning it in two different directions. When you attach the barrel, it is better to maintain a balance while forcing it so that the grease gun can operate smoothly.

Screw the head in a counterclockwise direction and turn it entirely. Plus, Free the piston rod and return it to the correct place. Push the handle like you always do and remove the trapped air. Now, you can test your grease gun by lubricating your machinery, and whether enough oil or lubricant is delivered from the nozzle.

How to Load a Grease Gun Without a Cartridge

You can load your grease gun without a cartridge by following similar steps. But here, you need an enormous container that is full of bulk grease. This process even works more efficiently than the previous one. The main steps of loading a reservoir grease gun are given below:

Step 1: Separating the Gun Head from the Barrel

The initial thing you need to do is to unscrew the gun head from the cap. The handle and the applicator tube are attached to the head part. Loosen the double pieces of the grease gun, and they will be separated from each other.

It is better to assure that the piston rod’s handle is utterly depressed into the barrel. It prevents the risk of sucking some grease through the gun throughout the whole process, unexpectedly.

Step 2: Put the Distal-end of the Barrel into a Holder of Grease

To fill up the barrel, you must clench it down at the distal end of the barrel inside the holder of the grease, which is overfull with grease, and unhurriedly pull back the plunger rod to load the reservoir while drawing grease back into the barrel.

You can quickly get large-size grease containers from local hardware retail stores or shops. It is notably better for professional mechanics.

Step 3: Removing the Barrel

Take off the barrel from the grease container when the plunger rod has been completely withdrawn. If any grease is holding to the barrel, then rotate the barrel to cut it. Furthermore, use a dust-free fabric to clean the surplus grease from the end of the barrel.

Step 4: Reattach the Barrel of the Grease Gun to the Head of the Grease Gun

You will notice a little bit of difference in every grease gun when they operate. Some grease guns may need to screw the nozzle while others may need to screw the end cap on. It mainly depends on the type of grease gun you are holding. Nonetheless, hold the threads and pull until the joint is seated.

Step 5: Test It

After loading and reattaching every part, it is time to test how duly it is dispensing. The handle of the piston rod should be pressured properly until the grease is appearing from the applicator tube. Pick a fresh fabric or rag to clean the excess grease that came from a gun.

Important Tips to Use a Grease Gun

If you didn’t grow up on a farm, you might not realize how much farm equipment needs grease to survive anywhere you have moving parts.

Generally, you will see a little grease zerk, which is a place where you can inject grease into that system to lubricate everything and keep everything performing the way it should and give it a long life.

We don’t generally have to grease them very often, or it’s done in the shop. A typical mini grease gun has a spring-loaded plunger on the end that pushes the grease to the front of a pump, and it helps the grease out through the tube onto the end of the grease zerk.

Most grease guns have two hands to operate because you must hold the canister with one hand and the pump handle with the other and push that into the grease zerk.

It also has a rubber tube that goes to the injector on the end, so if you’re trying to get in a tight place, you can push it on the grease zerk and then grease it from a distance or an angle. When you pull the plunger out and there’s a spring on there, and generally, you can pull it to one side, and that holds it out, and there’s a little grease losing out there, which is pretty common.

When you want to fill the grease gun with grease, pull the spring-loaded plunger out and take the cap off. Then poke a hole in it for the grease to come out and push it down to going to screw that back in. Make sure to wipe away the excess grease from the zerk as best you can.

How to Bleed a Grease Gun?

If you want to bleed your grease gun, you need to bleed the trapped air out of your grease gun. There is a hand pool or a big handle to get air trapped by pumping it, and then you try to bleed the air out through the bleeder.

You will observe an air drain clapper screwed into your grease gun when you pump the handle. Some air gets trapped at the grease cartridge’s internal part when you replace your grease cartridge and pump your grease gun for lubricating fittings. You need to pull the t-handle with the rod to change the grease cartridge.

Then you need to unclose the rubber or plastic cap from the upper part of your grease cartridge. Furthermore, tighten the barrel one more time after putting the cover inside the barrel. Unscrew your barrel a little bit when you notice an air space in your grease cartridge. It will help to get the air out and make up for more air space.

Next, the t-handle should hold off properly while dragging the rod in its original position. The grease will then generate pressure inside the barrel, and it will let the air out from your grease gun.



Lubricating your machinery equipment whenever the need arises is an essential task because it decreases friction, heat, and wear and also increases the life of your tools and moving parts. A grease gun helps to lubricate grease on your machinery equipment. But you need to know to load your grease gun correctly with grease.

Hopefully, the process and tips we mentioned above will make an easy load grease gun and wash away your doubt about how to load a grease gun. We have given two methods. You can follow any of them based on your preference and requirements.

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