How to remove a cartridge from a hammer drill? Disassembly and replacement of components

Over time, the hammer drill wears out and becomes dirty, causing it to work worse or even break. In such cases, you will need to clean the mechanisms or replace them with new ones. Therefore, it is necessary to figure out how to remove the cartridge from the hammer drill. Step-by-step instructions with photos are described in this article.

How to remove a cartridge: step-by-step instructions

First of all, you need to understand how to disassemble the hammer drill cartridge. This is easy to do - you just need a regular straight screwdriver. The sequence of actions is as follows:

1. Using a straight screwdriver, lower the slider slightly and remove the boot.
2. Remove the corkscrew ring. This is a rather labor-intensive operation - you need to use pliers and a straight screwdriver.
3. Remove the washer.
4. The next step is how to remove the attachment from the hammer drill. Below there is another corkscrew ring - you need to pry it off with a screwdriver.
5. Remove the boot.
6. Remove the spring.
7. Clean with a dry cloth.
8. Next, the cartridge on the hammer drill is replaced (or the old one is installed). Essentially, this is the reverse process. First install the spring.
9. Place the puck.
10. Install the ball.
11. Put on a romper.
12. Return the corkscrew ring.
13. Lower it using a screwdriver.
14. Return the small washer to its place.
15. Install the second corkscrew ring.
16. Lower the slider and put on the boot.
17. Just in case, check by inserting a drill. If it sits securely and does not come out, the assembly is done correctly.In this case, it is clear how to remove the cartridge from a Makita hammer drill or other models.

Why doesn't the drill lock?

If the drill is securely inserted, it means that the assembly was carried out correctly, and all parts of the mechanism are suitable for further use. But it also happens that it backlashes. The main reasons are as follows:

• the body is worn out;
• the locking plates are broken;
• the ball is worn out;
• the clamp spring is weakened or broken;
• the lubricant has dried out or is thickened with dirt.

Next, the question arises whether the cartridge on the Makita rotary hammer needs to be replaced or whether repairs are sufficient. Restoration work will only help if the balls are worn out and the lubricant is replaced. If the reasons for the instability of the drill are different, it is easier to purchase a new cartridge and install it according to the instructions described above.

How to lubricate the cartridge

The cartridge must be lubricated periodically. The fact is that over time, the parts of the mechanism wear out and become very dirty. If you maintain the device incorrectly, you will soon have to buy a new cartridge.

To prevent this from happening, it is recommended to use lubricants, preferably branded ones:

• BOSCH;
• DEWALT;
• HITACHI;
• MAKITA;
• SPARKY;
• ENERGOMASH and others.

Now it’s clear how to remove the cartridge from the hammer drill, and in which cases it is better to install a new one. To avoid frequent breakdowns, it is recommended to carefully monitor the lubrication. For this, you can use different compositions, with the exception of Vaseline. It is also useful to know about the sds plus cartridge, what model it is, and what devices it will fit. Changing parts is not difficult, but to do this as rarely as possible, you should regularly lubricate the mechanism.