How to put the button on the drill. Connecting the button on the drill with a speed regulator

Diagram of connection of the drill button for its replacement

If the work of the drill began to deteriorate, it is worth to make its diagnosis. First the drive should be checked for any damage. Also, the first thing to check is the presence of voltage in the mains from which the tool is powered.

Cordless models can be diagnosed with a special device. a tester. The voltage quoted by the manufacturer must match the value given by the tester.

If the voltage is lower, the battery should be replaced. The most common malfunctions of the drill:

If you know how to connect the button of the tool, you can easily deal with a breakdown associated with this part. You should also remember that a lot of the problems that arise during the operation of the drill are related to the dustiness of the instrument. It should be cleaned after each use. Otherwise, the tool will last much less.

A notion of a brush mechanism

Since contamination of the angle grinder is inevitable, you need to know more about the design of this part. If there are any malfunctions, the highest percentage is found precisely in this assembly. In addition, even in a serviceable tool, involuntary brush wear is inevitable, although it happens very rarely.

Selection of electric brushes

This element is a hexagonal geometric shape with identical, parallel faces. A brass lead is pressed into the brushes to provide electrical contact. Brushes come in many different sizes and shapes, as does the material used to make them. The original device was simple: a copper wire and a conductive brush. But this construction had to be modernized because of wear and tear.

Modern brush elements are made by compressing carbon materials with increased temperature and pressure.

If during the work of the angle grinder, as well as with a drill, the tool operates jerkily, with a characteristic smell of burning, then the root cause lies in the wear of this small detail. It is not recommended to neglect their replacement, as this will inevitably lead to the failure of the device. In this case you should stop working, find out the reason why the brushes on the electric motor are burning, and proceed to repair.

Varieties of current collectors

Underestimating the importance of the good condition of this part leads to serious consequences. Timely measures to prevent these will extend the life of the tool

To begin with, you need to understand the varieties of current collectors:

• Making graphite brushes for angle grinder is done by mixing the basic substance with a bonding compound. The pressing and firing of carbon materials produces a product with additional strength and resistance to wear and tear. Then begins the graphitization process, which consists in heating to a temperature of 2500-2600 degrees in special furnaces. This is the most common type of such products, although it costs quite a bit, but the service life partially compensates it.
• To produce carbon brushes for angle grinder use the same graphite or soot, only additional hardening is excluded from the cycle. This significantly reduces both the cost of the product and its durability.
• The raw material for the manufacture of metallographic brushes, as the name suggests, in addition to the main element, includes metal. Usually it is copper powder, but the addition of tin, lead or silver is not excluded. The metallic component can be up to 80. The application for such parts is mainly in industrial generators and electric motors. For domestic needs, these products have too high a price.

Drill button wiring diagram. how to fix the problem?

Unfortunately, to check the functionality of the tool, you will not be enough tester, which is due to the fact that most of the buttons are equipped with a stepless speed control, and therefore an ordinary tester can give you incorrect data. In this case, you will need a special wiring diagram of the drill button. Often in the tools one wire is connected to the terminal, and therefore simultaneous pushing of the button leads to the probing of the terminals. If the light turns on, the button is ok, but if you notice a malfunction, it’s time to replace the button.

When making a replacement, keep in mind that the circuit can be either simple or reversible. Because of this, all work on replacing the button should be done solely according to the diagram, without adding anything “from yourself”. So, the part must be suitable in size and capacity for the tool. It is quite simple to calculate the power. We use the formula P=UI (assuming that the power of the drill is 650 W), I = 2.94 A (650/220), which means that the button must be 2.95 А.

How to install the button on the drill

Replacing the Button in the Electric Drill

Quite often the drill stops working because of a breakage of its button (not included, not regulated RPM), we disassemble the drill something that tries to do, and when we understand that the problem is the button turns out that many wires from it have been broken and what was the unknown where? You buy a new button, and how do you connect it?For this you will need a wiring diagram of it:

Wiring the button where the capacitor has three pins

In order to make the motor run in reverse, you need to swap the connection wires to the brushes (in the button with reverse, this is done with the lever switch).

I want to draw your attention when buying a button, it must fit not only the size but also the power of your drill. Let’s calculate: we have a drill power 650w, P=UI, I=650/220 = 2.95A, so we need a button at U=~220V, I = at least 2.95A, so we will fit the button BOE-3 ~220V 3.0A.

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Operation of the tool without the button

Drill can be connected directly, except the control box. In addition to a flathead screwdriver and Phillips head screwdriver you will need duct tape and a box cutter. On a more capital connection, a soldering iron can be brought in.

Carefully remove the starter. Ant. the final unit according to the instructions above. Disconnect the wires connected to the button and connect them to each other. If you intend to use the tool extensively, the cores should be soldered. For single work, the usual twisting and insulating is enough. It is better to cover the soldering with the junction box.

The winding includes two strips of wire. Connect those wires that run diagonally (from the coils) to the brushes and insulate the connections. Connect the other pair to the power cable.

How to choose replacement parts

Construction of an electric drill: 1. stator, 2. stator winding second winding under the rotor. 3. rotor, 4. rotor collector plates, 5. brush holder with brush, 6. reverse, 7. speed regulator.

On it you can see available regulator of engine rpm with reverse rotor regulator, reverser. This unit becomes clogged with dust during operation.

If the light turns on, all is well with the button, but if you notice a malfunction, it is time to replace the button. The stator is made of electrical steel with high magnetic permeability. There are many cases when the parameters of the buttons match but they do not fit when installed in the body of the drill.

When replacing the button, keep in mind that the circuit may be fairly simple or it may be reversible. When these parts are worn, the reduction gear pair experiences increased loads.

This means that you should take care to clean the device after each use, as this is the only way to reduce the risk of malfunctions due to tool contamination. Drills are different in type, by the way when you buy a new drill button, you need to consider the power of the tool, otherwise the button will not last long.

This article will help to eliminate this gap. WEIGHT without lead wire, chuck and auxiliary weight.

Needed tools and materials

Drill repair can be carried out and their own forces, most importantly, know the causes of failure and methods of their “treatment. Today we will tell you what the wiring diagram of the drill button looks like, we won’t skip the other malfunctions, so you’ll be a happy owner of a working tool.

Design of an electric drill: 1. stator, 2. stator winding second winding under the rotor. 3. rotor, 4. rotor collector plates, 5. brush holder with brush, 6. reverse, 7. speed control.

It shows the speed control of the electric motor with a reverse rotor control, reverse. This unit gets clogged with dust when you use it. If the light turns on, everything is ok with the button, but if you notice a malfunction, it’s time to replace the button. The stator is made of electrical steel of high magnetic permeability.

There are many cases when the parameters of the buttons match, but when installed in a drill housing just do not fit. When performing a push-button replacement, it should be borne in mind that the circuit may be quite simple or it may be designed with reverse. When these parts are worn, the reduction gear pair experiences increased loads. That means you should take care of cleaning the device after each use, it is the only way to reduce the risk of malfunction due to contamination of the tool. Drills are different by type, by power, by the way when buying a new one, you should take into account its power, otherwise it will not last long. This article will help eliminate the gap. WEIGHT without lead wire, chuck and auxiliary.

Checking the electric motor: causes of failure and repair

There are several reasons for breakage of the armature or stator of a drill. First of all, it is illiterate use of the device. For example, many users simply overload the tool, carrying out work without a break. This leads to the fact that the drill motor does not have time to “rest”. The second reason lies in a bad winding wire, which are often found in cheap models. That is why breakdowns of cheap tools occur much more often. Repair in this case should be carried out with the use of specialized tools. And it will be better if you entrust this work to professional professionals.

However, if it was decided to carry out the repair by yourself, you will definitely have a question. how to do everything correctly? As you have already understood, the electric drill “suffers” from armature and stator breakdowns, and you can check this by several signs, for example, when the tool suddenly sparks when working. If there are no “bright” signs, you can use an ohmmeter.

• First carefully disassemble the body of the device;
• Remove the wires and all internal parts;
• After determining the cause of the failure we replace the part with a new one, close the housing again.

Repair with your own hands

When disassembling the unit, carefully inspect the parts for cracks and chips.

Power Button Replacement

Before replacing the button, note the wires and pins so as not to mix up the order of connections.

• To replace the button, all you need to do is unscrew the contact screws. But you may come across buttons without screws. There are holes near the pins where a needle or thin awl can be inserted. Poke into the hole, press and pull out the wire. Do not pull on the wire, you can damage the button.
• The wires should be stripped and tinned.
• Take the old button and buy a similar one.
• Insert an awl in the hole on the new button, apply light pressure, and insert the wire. It will automatically be clamped by the contacts.

Replace brushes

The brushes should be checked periodically. If one is 40% worn, replace both. Also, clean the brush holders.

Replace and connect stator

• Remove the stator from the electrical enclosure. Put a new one in its place.
• Screw in the mounting screws.
• Install the air inlet.
• Proceed to connect the windings. Connect the two ends of the different windings to each other and connect them to the nearest brush. Connect the other two connected ends to the start button. Connect the wire from the second brush to the button as well.

Replacing the bearings

There are several bearings in the rotor. You will need a puller to remove them. In some cases, remove the retaining ring. If you don’t have a puller, suspend the shaft with the bearing and use a piece of wood to knock it out. Fit the bearing with a polypropylene tube insert and tap with a hammer.

Replace the cartridge

The cartridges in the peorator are very easy to change. Remove the rubber duster, retaining ring, plastic duster, washer that holds the balls, retaining plates, spring. Number of rings and shims varies with model. Put a new set in its place.

Repair the Drunk Bearing

Prepare a flathead screwdriver, a clean rag, and the gear lubricant recommended in the manual.

• The bearing is held in place by a bracket. Undo it with a flathead screwdriver.
• Extract the anti-drunk bearing from the aluminum gearbox housing.
• Remove needle bearing.
• Remove pinion and spring.
• Remove plastic alignment from the spring.
• Replace unusable parts.
• Take out the aluminum gear housing and clean it thoroughly with a dry rag. Clean all other parts as well.
• Grease the bearing from the inside. Insert the needle roller bearing and grease it as well.
• Insert the pinion, lubricate from the inside and insert the spring into it. Put on alignment.
• Lubricate the intermediate shaft and put the shifting bracket on it. Fit the shaft into the drunken bearing.

Repair of dot sleeve and striker bolt

To disassemble the bushing, compress the spring, remove the retaining ring and pinion.

Image bushing complete and without pinion

The dot sleeve complete and without pinion

The shock bolt can be repaired by replacing parts or replaced completely if it has fallen apart.

The raster sleeve has holes on both sides where the retaining ring is clearly visible. Use a small flathead screwdriver to pry up and slide the ring on both sides.

Replacing the sleeve

The sleeve is less subject to wear than the throat bush, but will also fail if the tool is overheated frequently. Remove the bushing and sleeve from the aluminum gear housing. Put a new one in its place.