How To Remove A Cartridge On A Screwdriver

How To Remove A Cartridge On A Screwdriver

In our country, screwdrivers as a household and industrial tool appeared not so long ago. For the first time they began to be used in the space industry, and then screwdrivers found application in ordinary human life.

Among the main parts of this equipment, a mechanism consisting of a hollow cylinder, an adjusting sleeve, and pressure cams can be distinguished. This mechanism is called a cartridge.

Disassembled cartridge

Types of cartridges

Today, two main types of cartridges are on sale:

Keyless chucks have another classification:

This type of part can be tightened or unscrewed with two hands, because one clutch adheres and the other rotates when removing the equipment.

Two coupling cartridge

Work with this product provides the same actions, they are only performed with one hand. This is possible due to the fact that the design of such products provides for automatic locking of the shaft when removing the snap.

Such cartridges are made of two types of material:

The use of a plastic product is a good opportunity to reduce the weight of the equipment used, but this material is not reliable enough and does not have resistance to shock loads. Keyless chucks can be used for both domestic and professional tasks.

Cam chucks have greater reliability, durability and are able to withstand a large shock load, not unimportant for screwdrivers with the presence of a shock function.

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How to fix a cartridge

There are several ways to attach a cartridge. Among them stand out:

  • Thread;
  • Morse Cone;
  • The fixing screw as an addition to the above;

One of the simplest and most reliable methods is the cone, which began to be used in the 19th century. The shaft is specially sharpened for the parameters of the cone, which is available in the cartridge. When two elements are connected, a strong connection is obtained.

How To Remove A Cartridge On A Screwdriver

You can see the thread on the main shaft of the screwdriver on which the chuck is mounted

If we consider a threaded connection, then its whole point is to apply thread to the cartridge and shaft. According to technology, to connect the parts, it is enough to simply wind the product.

It was not uncommon to use a fixing screw, which acts as an additional fastener. As a rule, his head is made in the form of a Phillips screwdriver, and the thread is cut to the left. You can only see the screw if you untwist the cams of the cartridge as much as possible.

It is easy enough to determine which method of fastening is used on a screwdriver, for this you just need to inspect it. If it is a Morse cone, then 1-6 B10 will be written on the cartridge like this.

Such an inscription is deciphered as a shank diameter from 1 to 6 millimeters, and B10 is the cone dimension, which can be found in any reference to a machine builder.

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On a threaded connection, marking is also put, for example, 1.0-11 M12x1.25. M12x1.25 means metric thread, and values ​​of 1.0-11 tell us about the dimension of the tail of the nozzles. If it is a tool of a foreign manufacturer, the inscription will be indicated in inches.

How to remove a cartridge

There is nothing difficult in unscrewing the chuck of a screwdriver, for this you need a hex wrench for 10

  • The key is clamped in the cartridge with a short end
  • The screwdriver turns on for a time sufficient so that, turning, the key hits the table

As a result of this blow, the cartridge should turn on the left-hand thread, with which it is attached to the shaft.

This is one way, but it is not the only one.

  1. The cams of the cartridge must be fully released, if there is a screw on the bottom of the cartridge, this is an additional fastening to the drive shaft
  2. Turn the screw clockwise
  3. We hold the hexagon and try to sharply turn it counterclockwise
  4. The cartridge should move, but if this does not happen, you need to apply a light blow with a hammer at the end of the key

It happens that none of these methods helps, then the only way out is to completely disassemble the tool and pull out the spindle with the chuck and gearbox from its design. This design is installed in a vice and only after that the cartridge is removed using a key.

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On some models of screwdrivers there are special grooves that help simplify the task. Unfortunately, this is a rarity for a modern instrument.A problem with the chuck can occur if the tool is very hot, so you need to let the screwdriver rest from time to time.

New Product Selection Principles

If the old cartridge requires replacement, it’s time to choose a new one. It is worth remembering that various types of key cartridges can be used in the design, the tool in which is clamped with a key, and keyless or keyless.

The advantage of the key product is that the clamp on it is performed more efficiently, however, quick-clamping is also not inferior in this parameter, but they have to be replaced more often due to wear of the clamp mechanism.

If during the execution of the task you have to often change the equipment, it is better to choose a quick-clamping option, which will save a lot of time. But when using large-diameter equipment, preference should be given to key cartridges.

The chucks that are mounted in a screwdriver with a cone can be made of quick-clamping and key, the choice is always up to the consumer.

If after all of the above there are questions, we advise you to watch the, everything is the same there, only a little more clearly.