Video Selection On How To Quickly Replace A Cartridge With A Drill With Your Own Hands

2023 Author: Philip Bishop | [email protected]. Last modified: 2023-08-25 07:54

• Mechanical faults
• Ways to remove the keyless chuck from a drill or screwdriver

In the household, the most popular tool is an electric drill. Recently, electric drills called perforators have been especially popular.

This tool allows you not only to drill a hole, but also to tighten nuts, screws, screws using attachments. An electric drill is a reliable tool and rarely fails. How to troubleshoot electric drills. The main faults in electric drills are divided into mechanical and electrical.

Mechanical faults

A common mechanical problem is the failure of the chuck.

And how to remove the cartridge from the screwdriver and replace it?

Immediately, we note that replacing the cartridge with an electric drill, a screwdriver, a hammer drill is absolutely the same.

The reason for the chuck to come out is usually the wear of the chuck jaws. This is the most serious malfunction of an electric drill. Complete replacement of the chuck is indispensable. And how to remove the cartridge from the drill, the video will show.

By the way! The given method of replacing the chuck is suitable for any modern models of not only electric drills, but also perforators, screwdrivers, since all the above designs provide for exactly this method of fastening the chuck.

But in Soviet-made drills, the cartridge is held on a Morse taper and is tightened with a screw. How to remove the cartridge from the cone? To do this, you can use a bearing puller or knock down with a hammer.

Attention! When purchasing a new power tool with a chuck, be sure to remove the chuck and thoroughly lubricate all mating parts and threads.

Video:

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1. Procedure for replacing the jaw chuck of the electric drill

To disassemble the electric drill, check that its cable is disconnected from the mains.

Using a special wrench, spread the chuck jaws to the maximum possible position.

If you look inside the open chuck, you will most often see the screw designed to attach the chuck to the motor shaft.

As a rule, the screw is removed with a Phillips screwdriver.

Remember! The thread of the fixing screw is left-handed, and it is unscrewed by turning the screwdriver clockwise.

Unscrew the screw, insert the L-shaped hex key into the chuck in place of the drill and tighten it.

If the head of the screw is worn out, and you cannot unscrew it with a screwdriver, do this.

Take a second drill, insert a drill with the diameter of the screw head and start drilling the screw. It will all end with the screw unscrewing when drilling.

Insert an open-end wrench onto the motor shaft at the base of the chuck. There are models in which the clearance between the chuck and the body is very small. We'll have to pick up the key or file it down in thickness. A wrench is required to secure the motor shaft.

Older models have no shaft wrench slots. In this case, you need to disassemble the drill body, remove one cover. Simultaneously clamp the driven gear of the chuck shaft and the cooling fan and try to unscrew the chuck with a sharp counterclockwise movement.

But back to the key option

Now, placing the drill on a wooden surface and securing the shaft with a key, hit the protruding tail of the hex key counterclockwise with a wooden or rubber mallet.

The chuck is threaded onto the shaft.

Turning the chuck counterclockwise, remove it from the electric drill.

If you do not have an L-shaped hex wrench, you can use a drill with a suitable diameter that fits into one of the three clamping wrench holes.

Examine the cartridge. If the jaws are completely out of order, replace the drill chuck with a new one. Install the new chuck on the drill, performing all operations in reverse order.

Remember! When installing a new chuck, be sure to lubricate all rubbing parts. This is especially true for threaded connections.

We have considered the case when it is necessary to replace the chuck. But after all, power tools are also produced with keyless chucks.

Keyless chucks allow you to change the drill in a matter of seconds without using any additional tools or fixtures.

Keyless chucks are subdivided into single sleeve and double sleeve.

The design of a single-sleeve chuck has a special mechanism that locks the shaft at the time of tool replacement. The replacement operation can be carried out with one hand.

With a double sleeve chuck, tool change is done with two hands. The first clutch is held with one hand, the other clutch is twisted with the other hand.

But quick-clamping structures do not securely fasten the tool, especially in shock mode. And the use of plastic for their manufacture often leads to breakage of cartridges.

The jaw chuck is more reliable, and the parts used in it are made only of metal. A special clamping wrench must be used to secure the tool.

Ways to remove the keyless chuck from a drill or screwdriver

The chuck is threaded onto the axle and locked with a clamping screw.

The keyless chuck is removed using the same algorithm as the jaw chuck.

First, unscrew the locking screw clockwise. If there are turnkey flats on the shaft near the chuck, then putting the key into the grooves, holding any lever in the chuck, try to unscrew the chuck by rotating it counterclockwise.

Installation of a new cartridge is carried out in the reverse order.

But the chuck can be repaired

In order to inspect the parts of the chuck, it must be disassembled.

A proven and reliable way to disassemble the electric drill chuck is proposed.

Take a conventional punch, remove the boot from it and insert the adapter. The adapter can be made from a broken percussion drill. The adapter is a drill shank with cut off the drill part.

Put the chuck on the adapter shaft and press it down with a rubber buffer or a wooden board.

Before installing the chuck on the adapter, it is necessary to bring the cams inside the chuck until they are completely immersed.

After assembling the structure, turn on the punch in impact mode. After 3 … 5 seconds, the cartridge should be disassembled.

Immediately it is necessary to mark the cams and places from the location with different colors.

Now you can start examining and troubleshooting the cartridge.

The cams can be replaced with new ones if necessary. True, one cannot do without additional boring of the cams on a lathe.

The rest of the parts can be easily replaced if available.

But there are other mechanical failures

There are cases when the failure of the electric drill is caused by the failure of the gearbox or poor performance of the bearings.

2. How to work with the electric drill gearbox

To get to the gearbox, you need to disassemble the plastic case of the electric drill.

After removing the housing cover, release the chuck shaft and remove it. A driven gear of a larger diameter is attached to the shaft.

A small-diameter spiral drive gear is attached to the motor shaft.

There is a bronze bushing in the gearbox housing, which most often leads to the failure of the drill. Everything happens due to its significant wear and tear.

Check the bushing dimensions and order a turner. Use bronze as a material, but caprolon is also acceptable.

When replacing the bushing in the gearbox, the bearings, their tightness and their packing with grease must be checked.

If the gear teeth are very worn out, they will have to be replaced. The gear teeth wear out when the support sleeve fails.

Most often, the driven gear with a larger diameter wears out. Replacing it is simple, you just need to remove the retaining ring and key.

The old gear must be removed from the chuck axis. You can use a puller, or you can just gently knock down with a hammer, substituting wooden supports.

Electrical faults

Now let's try to consider the typical faults of the electrical part of the drill.

Most often, the operation of the electric drill is interrupted due to wear on the brushes.

1. Replacing brushes in an electric drill

To replace brushes, remove the side cover of the electric drill body by unscrewing the fastening screws. There must be at least 7 of them.

The case is removed by carefully prying its edges with a screwdriver.

Having opened access to the electric motor, you will see two boxes in which the brushes are installed.

In order to get the brushes, you need to free the boxes, bend the holders and take out the worn out brush. Do the same with the second brush.

Install new brushes in the vacant places, wipe the contact space near the contact space with a clean cloth moistened with white spirit.

2. Repairing the power cord of the electric drill

One of the unpleasant malfunctions is the periodic stopping of the electric drill during operation. Most often this happens due to an arbitrary loss of power supply. And the thing is that when entering the drill body, the power cable experiences various loads, which lead to wire breakage.

To fix the problem, you need to remove one of the side housing covers. Use a tester to check the integrity of the cable.

If damage is found at the point where the cable enters the housing, but a broken piece is cut off from the cable, a 20 cm piece of rigid PVC tube is put on the cable and the cable is installed in place with subsequent connection.

To replace the button with a speed controller, it is enough to remove the housing cover, disconnect the wires from the controller. The new regulator is installed in the same place and connected according to the diagram. If there is no diagram, then before removing the old regulator, it is necessary to sketch the connection diagram.

3. Sparking

inside the case Arcing inside the case is most often caused by the turn-to-turn closure of the armature windings.

The second cause of sparking is the dirty surface of the collector fins.

Turn-to-turn closure can only be determined with a special device.

But the dirt from the collector part can be removed on your own using fine sandpaper. After cleaning, the dust must be carefully removed from the grooves between the contact plates, called lamellas. This is best done with an old hacksaw blade. At the end of the work, the anchor must be checked with the PPYa device.

These are, perhaps, the main malfunctions of any brand of electric drills.

I wish you success!