How to remove the gear from the motor of an electric screwdriver

Is it possible to independently replace the gear wheel on the electric motor of an electric screwdriver?

It is possible to fix the problem on your own, but the operation is quite complicated (because of the fragile unit, which must be removed from the thin shaft), and you need to do it very carefully, because there is a risk of breaking the teeth. Then you have to buy a new pinion.

Important! An additional difficulty is that a suitable pinion can not be found at electrical parts stores, so you have to buy the whole electric motor, which already has the necessary assembly.

You can remove the gear from the motor of an electric screwdriver (for example, a Bosch model) using a lighter and pliers, or a thin U-shaped piece of metal. But this option is not recommended by specialists, since there is a risk of damaging the teeth.

The second way is more preferable. use a special puller, which you have to make yourself or buy in a store Each option has its own disadvantages, which should be taken into account before you start work.

Malfunctions that occur with an electric screwdriver

Most modern screwdrivers are equipped with a standard single-type device circuit. For this reason they all have the same faults. Among the main defects that are indicative of tool failure are problems with:

• Battery failure;
• wear and tear of the brushes;
• Breakage of the buttons;
• chuck run-out;
• Failure of on/off attempts;
• The occurrence of interruptions.

Each such breakdown can easily be repaired by your own efforts, with experience in the use of measuring and soldering instruments. Keep in mind that in certain situations it is not impossible to replace entire assemblies because not every part is sold individually.

The purpose of the element is to hold the working bits of the fastener.

Chuck device

Internal thread on the chuck or a special cone is designed for fastening to the shaft. Structurally, the most wearable components are divided into three basic types:

The shank is then clamped by turning the toolholder by hand.

The clamping elements installed in modern screwdrivers and drills can reliably clamp shanks with diameters ranging from 0.8 mm to 25 mm.

Perhaps the only disadvantage of this new product type is the higher cost compared to core sleeves.

Just a few seconds are all it takes to secure the element in the clamping tool type BZP.

No auxiliary components are required.

The blade of the thermowell is corrugated, so it is not difficult to rotate the cylinder.

Pressure adjustment on the shank of the workpiece is carried out with the help of a locking element.

Clamping mechanism parts wear out over time.

That is why the design of the chuck of the power chuck implies a gradual loosening of the clamping mechanism.

The sleeve can no longer accurately hold round shanks with large diameters as a result of wear and tear.

In disassembled form, self- and quick-clamp models represent:

How to change the pinion on the electric motor of an electric screwdriver

An electric screwdriver is a useful tool that is often used in construction work to speed up the process. Breakdowns on this type of device are not uncommon, and therefore you need to know how to fix them. One of the most common problems, which is also the most difficult to fix, is how to remove the gear from the motor of an electric screwdriver. The article will describe in detail how to do it with improvised means or using a special puller.

Gear on the electric screwdriver motor

Pressing the planetary gear

The pressing process is practically the reverse of pressing.

• The stop ball is transferred to the opposite end of the spindle (on the thread side)
• Working attachment now acts almost any cylinder (huge tolerances between the inner diameter and the gear of the planetary gear)
• Everything is prepared for the pressing in advance (spindle shaft support bearing in the flange replaced. t.к. Personally, we, at tight fit, change it in 99% of cases, which is generally consistent with the regulations and with logic. We recommend also to mount the bearings in a well warmed up aluminium case beforehand. this way it can be inserted practically with the fingers and no damages will occur)

There is also the technology to cool the spindle shaft in parallel ❄❄❄❄ butFirst: Our practice has shown that observing all the above, both shaft and pinion practically do not lose size ☝. Secondly: with the simultaneous cooling of the shaft, during pressing the time will go by instants, which requires experience and skill. Thirdly: thermal deformation of metals is not excluded

How to disassemble the motor from an electric screwdriver

electric screwdriver is a useful tool that is often used in construction works to speed up the process. Breakdowns on this type of device are not uncommon, so you need to know how to fix them. One of the most common problems, which is also the most difficult to fix, is how to remove the gear from the motor of an electric screwdriver. The article will describe in detail how to do it by improvised means or using a special puller.

Can you yourself replace the gear on the motor of an electric screwdriver

You can fix the problem yourself, but the operation is quite complicated (because of the fragile node to be removed from the thin shaft), and you need to do everything very carefully, because there is a risk of breaking off the teeth. Then you will have to buy a new pinion.

Important! An additional difficulty is that a suitable pinion can not be found at electrical parts stores, and therefore you have to buy the entire electric motor, which is already equipped with the necessary unit.

You can remove the gear from the motor of an electric screwdriver (for example, a Bosch model) using a lighter and pliers, or a thin U-shaped piece of metal. But this option is not recommended by specialists, because there is a risk of damaging the cogs.

The second way is more preferable. to use a special puller, which you have to make yourself or buy in a store Each option has its disadvantages, which are worth considering before you start.

When the gear needs to be repaired or replaced

The most common problem in which you will have to replace the gear of an electric screwdriver (for example, the model “Interskol”). the motor itself burned out. In this case, you need to buy a new motor, which already has a gear. But, there is an important nuance. the problem is that on the electric motor, the factory gear may not fit the gearbox that is installed on the electric screwdriver itself. In this case, it is necessary to either look for a motor that matches the dimensions of the gearbox, or perform an operation to replace the small node.

Another problem: the chuck starts to spin during operation. This only indicates a malfunction of the gearbox, or more precisely, of the pinion, which does not mesh with the cogs. This results in the chuck popping out. Failure of this node indicates that the motor does not turn the spindle.

An experienced craftsman can understand that the unit in question is to be replaced if extraneous noises begin to appear in the gearbox during operation, as well as slippage or large jerks are observed during spindle rotation.

Important! The gear starts to fail in most cases because it is made of plastic. It is often the case with the cheapest screwdrivers (for example, Metabo).

The considered node can not be repaired even if it is made of metal, and therefore it must be replaced.

All the operations that can come to the master’s mind to repair the pinion will end in failure due to the small size of the node and the inability to reliably attach the fallen off cogs, and therefore it is not worth wasting time.

Important! After the direct replacement of the gear, it is necessary to put a lot of grease on it, so that the equipment was as smoothly as possible and the nodes did not wear out.

How to Remove a Gear from an Electric Screwdriver Motor

To remove the gear from the motor of an electric screwdriver (or drill), you can use only two methods. You need a special puller for the first one. You can make it yourself or try to find it on the Internet, for example on Aliexpress.

KOMMENTARE 0

I used a fork to remove it, it’s like a fork and in 5 minutes it’s done.

Guys well done I need to change a new motor where you do the address please write.

On our website. There’s a map of our location

How to make remove the gears from the motor with one minute. KST HACKS

when i type in my problem on the internet and see a video, it says it’s easy to take a special tool (puller) and pull it off like this. Mm-hmm

You take a square tube, make a cut, and on the contrary drill a hole for a bolt and remove the bolt with a screw, before the bolt is thinned at the end without special tools.

Well, what are you waiting for?? There’s a secret way to build a spaceship with a box cutter?

the difference between a talent and a virtuoso. subtleties. kudos for the nuances

THAT’S NOT A SAFE WAY TO REMOVE A PINION.

How to remove the pinion, you squeeze it one side with a vice and then easily remove the other side

And if you heat the pinion with a hair dryer, in my opinion it should fit on the shaft without a vice.

Only with a hair dryer, but I want to use a small torch.

Thanks for the video. Ordered a puller like this at ali for 350 rubles.

At 9:50 the most important)) thank you! Exactly what I did, since there are no other tools

And if you need the pinion and don’t need the motor and there is no place to install the extractor, how to remove it??

So you watch to the end, in the same video shows the way

Well, it depends on how you like it. The most important thing is that you do not spoil the motor when replacing.

You heat the pinion with a 100w soldering iron and it will come off fine, it will not turn yellow with a soldering iron. Put it on, you’re warming up too.

3180 people have that problem? I thought I was alone

How to remove the gear from an electric screwdriver motor

If you want to change the motor on your electric screwdriver, watch this video, there is nothing complicated about replacing the motor. The most important thing is to find a donor. All screwdriver motors are the same in size, they only differ in operating voltage and gears. To use a cogwheel, you must use a separate pinion, a pinion with a pinion shaft and a crank pinion. I at home and 10 minutes using the materials available made the easiest puller, it easily vyspressovyvaet such pinions.

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Puller to be able to pull the pinion from the electric screwdriver motor.I got the idea on Youtube, but there the guy made it from a very small nut.In time took about an hour and a half, made from what was handy, the tap was found M5, a pair of files, triangular, flat and a square, different types of severity, a vice and most importantly his hands ))))

I haven’t tested it yet, since I decided to make a puller after I couldn’t take apart the engine from a Hitachi electric screwdriver to the screws

what i wrote, at Ali and in shops, such a puller costs from 400 to 1500, you can make it from what is, even if you buy everything, the nut costs 30rub in leroy, taps 100rub maximum, probably everyone has a file, hands and time.The slot was made with an angle grinder, a cutting wheel, and I widened it with the same wheel.

I disassembled the motor because it smelled like there was dust between the rotor and the stator.

Комментарии и мнения владельцев 31

I disassembled several (4) screwdrivers from different companies all have the same Chinese motors. Coincidence?!

No, the 550 was probably all of them, there are also slightly larger and slightly smaller ones

All were 12 volt, the older ones had slightly thicker terminals. They probably put neodymium magnets on expensive equipment now

motors for cheap and expensive segment on the docking dimensions are standardized, the expensive can be their own coreless, brushless, etc., in the cheap all the same and depends only on the manufacturer that assembles, and the motor may be assembled at one plant that for a brand that for China shitty, for example Bosch in a blue series on a 12 V screwdriver put a standard motor that will work for Makita and Metabo, they are all compatible. It’s the same situation with the buttons. Batteries, there is such a spread, all manufacturers put the cheapest bank, just brands put Samsung, LZ and the like, the Chinese are what’s left ))))

Disassembled several (4) screwdrivers from different companies all have the same Chinese motors. Match?!

I also repaired several, the screwdrivers from 9 to 14 volts have the same motors.

You can always tell the BMW driver. he overcomes all the lying policemen, potholes and potholes very carefully because it’s a fiasco for the budget to repair a BMW

Where can I find a video or some explaining diagram that will help me remove the motor gear on a Makita electric screwdriver??

Too bad the brand of this screwdriver is not listed, but I think basically the lineup of this brand should be more or less the same. Since the sprocket on the engine is pressed pretty hard to remove it can only be done with a special puller. Since not all users of such great machines like Makita have pullers, I strongly recommend to go to a service center, where you will have the part removed and replaced if necessary (most likely with a quality one, not the junk they sell on the market). Well, if you still want to see how to remove the gear with a puller, I suggest you watch a video on the subject here

All wrenches work pretty much the same way. They are made up of the following functional units:

All components are in a rugged and aesthetic housing, which has a rubberized handle, control and adjustment buttons, as well as a socket for the battery (if the screwdriver is designed to work only on 220 V, it has no battery).

The cordless screwdriver may squeak if the start button is not pressed all the way. This is a normal phenomenon of DC motors at start up and at low speeds.

Why and how to adjust the ratchet

The ratchet on a screwdriver is a clutch designed to limit the force with which the chuck rotates. You can tell if the power tool is equipped with a ratchet by the rotating ring with numbers. Some users do not understand the significance of the socket and leave it untouched. You can adjust the depth of the screwdriver with the ratchet. The flat of the fastener can sink in too soft a material and penetrate it easily. If very fine fasteners are used, very high torque can ruin them. The ratchet prevents screwdriver bits from slicing off and wearing out. To determine the correct value on the adjusting ring, make several passes, starting with the minimum.

If the screwdriver has a drilling mode, the last icon on the socket is the drill icon. This position uses the maximum torque.

Frequent Screwdriver Failures

Since all modern screwdrivers have a standard device scheme, their faults are also, as a rule, typical. The main defects of this tool include:

• battery failure;
• deterioration of the brushes;
• breakage of the button;
• chuck run-out;
• No reaction when you try to turn it on or off;
• Working with interruptions.

All these breakages you can repair yourself if you have some experience with measuring and soldering devices. In some cases, you will have to change the nodes completely, since not all parts are sold separately. If repair of the gearbox or motor is too complicated for you, these elements can be completely replaced or taken to a workshop.