Removing Chuck From Bosch Screwdriver

Chuck fastening methods

Chucks are most often attached to the shaft in the following ways:

  • By means of a Morse taper
  • Threaded method
  • With the fixing screw

The Morse taper is one of the easiest and most practical methods that has been used since the 19th century. The plane of the shaft is machined in the form of a cone with the assigned parameters. A similar cone is located in the middle of the chuck. When they are combined, the components are quickly and firmly connected.

The following method is equipped with a thread that is cut into the edge of the power tool’s working shaft.

The fixing screw is used to additionally connect the screw-in chuck to the shaft. Typically, the screw has a Phillips head as well as a left-hand thread. It is necessary to unscrew the jaws of the chuck as much as possible in order to see it.

How to determine the method of fastening to a screwdriver

The fastening method is easy to recognize if you carefully examine the parts. A cartridge of the Morse taper variety will have the following inscription: 1-6 B10. This means that in the chuck, it is permissible to fix nozzles with a shank diameter of 1-6 mm, and B10 is an indicator of the size of the Morse taper.

The cartridge, fixed by means of a threaded fastener, is marked:

  • Metric thread (domestic products). 1.0-11 М12х1.25
  • Inch thread (foreign production). 2-13 mm ½-20 UNF

How to remove and change the cartridge

If you are faced with replacing the cartridge, initially, you should figure out how to mount it. To carry out the procedure with a minimum of effort, experts do not recommend overloading the screwdriver in everyday use. If you operate the tool for fifteen minutes without interruption, the rotating parts may overheat and lock firmly into the socket. Then it will be more difficult to carry out the replacement. Experts recommend the tried and tested methods for removing the cartridge, described below:

  • Unscrew the threaded fastener with an L-shaped hexagon, which is sure to be found in every owner. Next, insert the hexagon (size. 10 mm), place the short edge into the chuck and squeeze tightly in the jaws. After that, start and immediately turn off the device at low speed so that the free edge hits the table slightly, so the thread will weaken and you can unscrew the chuck.
  • If the chuck is threaded with a locking screw, then:
  • Unscrew the left-hand screw clockwise.
  • Then insert the hexagon into the cams, and with a quick movement of the hand or hammer, turn the free edge against the clockwise movement. Now you can unscrew the cartridge.
  • If both methods didn’t work:
  • We take out the shaft from the open housing, on which the gearbox and the cartridge are located. To remove the cartridge, you need to use a pipe wrench.
  • To remove and change a chuck with a Morse taper, you need to have a hammer with you, with which the shank will be released from the housing socket.

How to unscrew a chuck on a screwdriver

It has long been no secret that it is more convenient and fastest to unscrew and tighten screws with a screwdriver.

Any tool tends to wear out and fail. This is especially true for moving and frequently used parts. In a screwdriver, such a component is a chuck. An element that is completely out of order should be replaced. But first you need to understand how the cartridge is removed. To do this, you need to know a little about the technical characteristics of the device. To carry out repair work, you will need a hammer, a screwdriver, a vice and some keys.

Chuck Removal: Makita Screwdriver

Typically, Makita brand power tools are equipped with a threaded mount with an auxiliary fixation by means of a left-hand screw.

A number of actions should be followed:

  • Unscrew the fixing screw (clockwise).
  • Activate the spindle stop button.
  • Wrap the body with a dense cloth and squeeze in a vice.
  • Clamp the hexagon in the cams.
  • Striking with a hammer on the free plane of the key, the chuck is scrolled and then removed from the shaft.

Chuck removal: Bosch screwdriver

Bosch screwdrivers are usually equipped with a locking screw.

  • We put the key in the cams and tighten it for a couple of clicks.
  • The tool is placed on the edge of the table.
  • Pressing the stop button, remove the chuck retainer on the shaft.
  • The cartridge is removed against the clock movement.

All actions require special attention and sequence during disassembly / assembly.

Having received theoretical knowledge about the types of cartridges, it will be easier for you to independently repair the screwdriver Interskol, Hitachi, as well as other manufacturers.

How to unscrew a chuck on a screwdriver

This should be done not only in critical situations when urgent repairs are required. Parts need constant lubrication and cleaning, even if they have not been used for a long time. Without preventive maintenance, the tool will quickly fail. It is better to work on it with breaks of several minutes. The bit and the motor must be protected from overheating.

Metabo PowerMaxx cordless drill

You can unscrew the case in different ways. Much depends on the design and mounting method.

Types of quick-clamping structures

  • One-sleeve. one hand is enough to install the bit, since one of the body parts is fixed automatically.
  • Double-clutch. both parts are movable, and one of them must be held with your hand so that it does not rotate.
READ  How to test an electric screwdriver without a battery

If you need to replace the chuck on a screwdriver, it should be noted that single-sleeve are used only on tools with locks.

The material is plastic or metal. Plastic products are less reliable, but it is more convenient to work with them, since they weigh less.

How to remove and disassemble a screwdriver chuck

Threaded connection

For work, you need an L-shaped ten-millimeter hexagon. It is inserted into the cams, clamped tightly and rotated. It is more convenient to fix the hexagon in your hand or on a support and turn on the engine at low speeds. It should only work for a fraction of a second. This is usually enough to loosen the connection and remove the sleeve without hindrance. If the method does not work, the tool should be disassembled to approach the connection from the other side.

How to choose the right cartridge

Ideally, it should be the same as the old one. If you cannot find the same one, you need to look for a model with the same parameters. shape, size, principle of operation. All products are standardized, but despite this, it is easier to combine spare parts from the same manufacturer.

When selecting, you can be guided by other principles. If the tool is used frequently, it is necessary to decide what is more important. the convenience and speed of changing the working part or the reliability of the connection. In the first case, a quick-clamping cylinder is suitable, in the second. a cam cylinder fixed with a key.

It is important not to make mistakes. The easiest way to find the right part is with a tool and a sample of an old sleeve. How to change the chuck on a screwdriver should be written in its instructions. For connection, the thread on the body and the shaft or the Morse taper is used.

For detailed instructions on disassembling a screwdriver, see the video.

  • Prepared by: Artem Filimonov

What to do if the cartridge cannot be disassembled

  • Insert a bolt with a diameter of about one centimeter into a hammer drill or drill capable of operating in percussion mode. Broken drill can be used.
  • Insert a bolt or drill from the back.
  • We spread the cams.
  • Now you need to find an emphasis. it can be a table or a floor. It is necessary to put a shock absorber. a piece of rubber or foam.
  • The hammer drill with a sleeve rests against the shock absorber and turns on for a few seconds.

After repair or maintenance work, the assembled model will be easy to reassemble. It is important not to mix up the position of the cams. With prolonged use, they rub against each other and deform a little.

If the design does not imply outside interference, the body will have to be sawed, and then connected with a homemade girth. This process is quite time consuming and it is easier to install a new part.

DIY screwdriver repair when the chuck beats

The main culprit for this problem is the screwdriver gearbox. To make sure of this, you need to remove it by disassembling it in the above way. This particular failure may indicate several problems in the gearbox, which we will point out below. The reason may be:

removing, chuck, bosch, screwdriver
  • violation of the geometry of the gearbox shaft;
  • production of gears;
  • malfunctions of the shaft support bearing;
  • wear of pins fixing planetary gear satellites.

The above parts are produced only in factories, so you won’t be able to make them yourself. You just have to purchase them and replace the failed ones.

removing, chuck, bosch, screwdriver

Chuck Removal: Makita Screwdriver

Typically, Makita brand power tools are equipped with a threaded mount with an auxiliary fixation by means of a left-hand screw.

A number of actions should be followed:

  • Unscrew the fixing screw (clockwise).
  • Activate the spindle stop button.
  • Wrap the body with a thick cloth and squeeze in a vice.
  • Clamp the hexagon in the cams.
  • Striking with a hammer on the free plane of the key, the chuck is scrolled and then removed from the shaft.

Chuck fastening methods

Chucks are most often attached to the shaft in the following ways:

  • By means of a Morse taper
  • Threaded method
  • With the fixing screw

The Morse taper is one of the easiest and most practical methods that has been used since the 19th century. The plane of the shaft is machined in the form of a cone with the assigned parameters. A similar cone is located in the middle of the chuck. When they are combined, the components are quickly and firmly connected.

Bosch GSB 18V EC Chuck, Clutch, Gearbox, Speedswitch & repair

The following method features a thread that is cut into the edge of the power tool’s working shaft.

The fixing screw is used to additionally connect the screw-in chuck to the shaft. Typically, the screw has a Phillips head as well as a left-hand thread. It is necessary to unscrew the jaws of the chuck as much as possible in order to see it.

How to remove and change the cartridge

If you are faced with replacing the cartridge, initially, you should figure out how to mount it. To carry out the procedure with a minimum of effort, experts do not recommend overloading the screwdriver in everyday use. If you operate the tool for fifteen minutes without interruption, the rotating parts may overheat and lock firmly into the socket. Then it will be more difficult to carry out the replacement. Experts recommend the tried and tested methods for removing the cartridge, described below:

  • Unscrew the threaded fastener with an L-shaped hexagon, which is sure to be found in every owner. Next, insert the hexagon (size. 10 mm), place the short edge into the chuck and squeeze tightly in the jaws. After that, start and immediately turn off the device at low speed so that the free edge hits the table slightly, so the thread will weaken and you can unscrew the chuck.
  • If the chuck is threaded with a locking screw, then:
  • Unscrew the left-hand screw clockwise.
  • Then insert the hexagon into the cams, and with a quick movement of the hand or hammer, turn the free edge against the clockwise movement. Now you can unscrew the cartridge.
  • If both methods didn’t work:
  • We take out the shaft from the open housing, on which the gearbox and the cartridge are located. To remove the cartridge, you need to use a pipe wrench.
  • To remove and change a chuck with a Morse taper, you need to have a hammer with you, with which the shank will be released from the housing socket.
READ  Dismantling the Bosch 2 24 Hammer

Screwdriver chuck: description, function

The cartridge is a metal cylinder with a cavity inside, equipped with a ring and a regulating sleeve. It is fixed on the shaft. With its help, the drill or grinding attachment is securely fixed in it for further work. The fixation of the working body of the tool (drill) is provided by the thread. The drill is tightened in it in two ways. The first method consists in tightening it with a special key, in the second method, the drill tightens when the chuck is rotated in the direction opposite to the axis of rotation of the drill.

How to remove a chuck from a Bosch screwdriver

DIY screwdriver chuck repair

This is a moving element of the tool, which consists of many rubbing parts. In the process of work, it is subject to wear resulting from the action of friction forces, impact forces and other factors on it. The beating of the cartridge, its excessive backlash can frighten an inexperienced craftsman. In some cases, it is not always possible to allocate time or money to contact a repair shop. Therefore, we will consider how you can do it yourself when repairing various tool malfunctions.

Removal from famous models

There are many different models of screwdrivers on sale, which are produced from under the wing of numerous companies. Buyers have never even heard of many of them. But there are models that are always heard. In order to understand for sure how you can dismantle the chuck, you should study the examples of removing this part on the most famous brands of screwdriver.

By typing the corresponding request on the Internet, you can see the result, where the phrase will necessarily be written: how to remove the cartridge from the Makita screwdriver. And this is quite understandable, because the brand is very famous, and therefore it is worth considering.

How to Replace the Chuck on a BOSCH PSR 12 Cordless Drill

Features of removing cartridges

The chuck can completely crumble, becoming unusable. the cams in it are not capable of performing their task, it is impossible to clamp the drill. or start to play. The fragility of the element does not allow to hold the bat tightly. Drills constantly fly out during operation.

A thread is cut inside the chuck or there is a special cone for mounting on a shaft. Structurally, the element is divided into three types:

  • quick-clamping;
  • self-clamping;
  • key or ring gear.

Keyless chucks are considered the most popular: the tail is clamped by manual rotation of the screwdriver sleeve. The main differences between the types are that in one case, the attachments are fixed by hand, in the other, you cannot do without a key. Manual clamps can be a huge time-saver since the user does not have to pick up the key. The main purpose of the chuck is to ensure tight contact between the working bit and the rest of the mechanical parts of the tool. The key view handles this better because it is considered more reliable.

Self-clamping

This type differs markedly from the quick-clamping one. It’s all about an interesting function that allows you to additionally clamp the bit while turning the screwdriver. You can distinguish between self-clamping and quick-clamping types by a characteristic click when loosening or tightening the cams.

With a hexagon

First, again, the screw inside the chuck is unscrewed. clockwise. Further:

  • Clamp the hexagon with the jaws.
  • Set the moment for drilling. it is recommended that the battery be clamped to maximum.
  • Set reverse mode.

Removal method from a disassembled screwdriver

Sometimes the tool reducer fails. to repair it, the chuck must be removed from the shaft. Process:

  • Find and unscrew the counter bolt inside the cartridge.
  • Prepare the head (in most cases. 19 mm, but sometimes you have to select the size individually).
  • Put the head on the back of the gearbox and fix it tightly.
  • With the other hand, lightly unscrew the cartridge counterclockwise.

Everything, by means of simple machinations, it was possible to remove the element from the disassembled gearbox.

How to disassemble a cartridge

Over time, the mechanism becomes clogged with dust that forms during drilling. When scrolling, a characteristic crunch is heard, jamming begins. For repair, disassembly of the screwdriver chuck is required. Further:

  • It will be necessary to dismantle the lower coupling (during assembly it is recommended to install it in the same position as it was. you can apply marks for a reference point). A screwdriver with a thin blade or an unsharpened knife is taken to pry the sleeve in a circle. Do everything carefully without deforming the plastic. The clutch is held inside thanks to the notches. after prying, when it comes off enough, you need to pull the part up idle.
  • The upper metal ring is removed. It is pressed onto the base of the chuck. the part will have to be knocked out. It is forbidden to knock on the cams, therefore a bolt of a suitable length will go into work. Everything is done slowly and carefully. The bolt is pressed by the cams, but not completely to ensure free play. With weak blows of a hammer, the ring is knocked off the chuck.

You managed to disassemble the screwdriver chuck. All elements are recommended to be brushed and lubricated for correct movement. The head is assembled in the reverse order.

How to remove a cartridge from a screwdriver: simple and effective ways

The chuck is a movable metal cylinder in a screwdriver that is attached to the shaft. This is one of the most important elements holding the working bit. The chuck constantly rotates, therefore it wears out quickly and becomes unsuitable for tightening. In such cases, it will have to be replaced.

Holding the cartridge with your hand

There is always a screw inside the chuck. It must be unscrewed with a screwdriver to the right. clockwise, since there is a reverse thread. The tool is inserted into the chuck hole. If the screw does not lend itself to need:

  • Set the screwdriver to standard (right) rotation.
  • Clamp the chuck and rotate through force, to the limit.
  • The screw is unscrewed.

When the latch gave in, set the reverse mode and clamp the cartridge. If you are going to pull manually, then it is better to choose the second speed. Further, by jerking clockwise, it is possible to remove the cartridge from the screwdriver.

Sometimes the head won’t budge. Then we switch to the first speed, select the reverse mode and hold the cartridge with our hand. Then we press the start and fix the head by hand. This is enough in 30-40% of cases, in the remaining 60% you have to tinker to disassemble the screwdriver.

READ  How to Cut Aluminum with a Thickness of 2 mm

Using the L-shaped tool

This method is quite simple and safe, therefore it is a priority. You must perform the actions in the following sequence:

  • Make sure the locking screw is removed from the spindle end.
  • Fasten the L-shaped tool in the cams. Best Hex Wrench.
  • Set the torque regulator to the maximum value or switch it to drilling mode.
  • Switch the direction of rotation of the spindle to reverse mode (counterclockwise).
  • Start the engine and allow it to reach maximum speed.
  • Bring the rotating L-shaped tool fixed between the cams to the fixed stop. For example, bench vice, gymnastic weight.
  • At the moment of impact of the fixed L-shaped tool, the chuck will be quickly screwed off the spindle.

Attention! The chuck unscrews very quickly, in less than one second. Therefore, it is necessary to provide that it falls from a minimum height, that is, the emphasis on which the L-shaped tool will be stressed should be as close to the floor as possible.

The second variant of this method is also possible:

  • After unscrewing the screw and fixing the faceted key (three-, four-, five-, hex) between the cams, we hold the screwdriver in one hand, and with the other we strike with a hammer (mallet) on the shoulder of the protruding tool so that the rotation occurs counterclockwise.
  • Thus, having “ripped off” the cartridge from its place, you can continue to unscrew it by hand.

This subtype of loosening is especially effective in cases where there is no voltage in the network (mains screwdriver), the battery is discharged, or the power tool is inoperative.

Holding the cartridge with your hand

The easiest way is to hold the cartridge with your hand. To do this, follow these steps:

  • Put on a work glove on the hand that will hold the cartridge.
  • Set the torque regulator to the maximum value or put the screwdriver in drilling mode.
  • Make sure that the retaining screw is removed from the spindle end.
  • Bring the chuck jaws to the minimum clearance.
  • Holding the chuck with one gloved hand, start the screwdriver to rotate in the reverse direction (counterclockwise). While the cams are diverging, the electric motor will pick up speed, and at the moment of their full disclosure, a kind of blow will be obtained, which should move the threaded connection. Now screwing the cartridge will not be difficult.

Attention! This is an unsafe way! It is forbidden to use it upon confirmation of at least one point:

  • Lack of work gloves.
  • The power of the screwdriver exceeds 500 watts.
  • Self-doubt.
  • Lack of good physical fitness (adolescents, women, elderly people).

If this method is not suitable for the above prohibiting reasons or turned out to be ineffective, then the following should be applied.

How to remove a chuck from a screwdriver

Owners of screwdrivers sometimes need to remove the chuck from the power tool. This can be caused by various circumstances:

  • Repair, lubrication and cleaning of this unit.
  • The desire to replace this cartridge with another model (different design, size).

This operation does not require any special tools, skills and abilities. But, when performing it, it is necessary to remember some features that complicate the disassembly steps. Most three-jaw self-centering screwdriver chucks are keyless. That is, they have several differences from the usual (key types):

removing, chuck, bosch, screwdriver
  • The unit has a plastic surface that can break down even with minimal mechanical stress on it with metal tools.
  • Very close location of the chuck to the drill body, with a small gap, which will not allow fixing the spindle with a pipe wrench or a vice.

Another factor that can complicate disassembly in the easiest way is the relative low power of the screwdriver (when compared with drills).

The first required step! Unscrewing the fixing screw

The first, mandatory, step when removing the chuck from most household screwdrivers is to unscrew the fixing screw located at the end of the spindle between the cams. This fastener is designed to protect the quick-release assembly from self-“make-up” when working with a load in reverse mode (counterclockwise).

For example, when unscrewing old fasteners when it is necessary to increase the torque. In this case, the chuck can remain stationary, fixed with a bat in the surface to be processed, and the spindle will rotate “to the left” (counterclockwise) and unscrew itself from the fastening unit of the screwdriver.

To avoid such situations, manufacturers use a control screw with a “left” thread. It is he who must first of all be removed by performing the following steps:

  • Spread the jaws so that the tip of the screwdriver passes freely between them.
  • Unscrew the screw by turning to the right, as it has a “left” thread.

Attention! The grooves on the screw heads can be of various sizes and shapes (straight or cruciform). Therefore, it is necessary to have screwdrivers with different tips.

Screwing the keyless chuck off the screwdriver spindle
After the fixing screw with “left-hand thread” has been unscrewed from the end of the spindle, you can remove the keyless chuck from the screwdriver.

Due to the fact that the gap between the coupling and the body is several millimeters, it is not possible to fix the spindle with a vice or pipe wrench. Therefore, there are several other ways to remove the cartridge.

Removing the chuck from the disassembled screwdriver

All of the above methods involve removing the cartridge from the whole screwdriver. But a situation may arise when the power tool is disassembled. The chuck will be removed from the screwdriver along with the gearbox.

Then there are two ways to remove the cam assembly:

  • Fasten the reducer between the jaws of the vise using soft spacers (eg wooden) to avoid damaging the body. Fix the L-shaped tool in the jaws, and try to “rip” the chuck with a hammer.
  • Select a socket wrench so that it fits snugly on the three gearbox studs (you can start with size 9).

Holding the cartridge with one hand, turn the key counterclockwise with the other.

The designs of most manufacturers of modern household screwdrivers with three-jaw keyless chucks are very similar, so the disassembly methods are applicable to most models.

The easiest and safest way is to use an L-shaped faceted tool clamped between the chuck jaws.