Repair screwdriver with their hands. And how to extend its service

Cordless screwdriver - an indispensable tool on the site. I think that it should be in every man and in everyday life.

After 2/3 of the span of twist fence metalloshtaketnika, I could not bear the load my old screwdriver Stayer SCD-14.4. I stopped to turn and there was overheating of the battery thermal protection (the smell of plastic). Short circuit. Thought that the short-circuited rotor of the electric motor.

Disassembled and without the electric motor. From the sound and force with which had to twist the arms of the motor rotor, I realized that worn brushes.

Opened sure. Yes, one brush has worn off almost all, and in the other frayed even copper plate holder insert graphite. Through search engine queries in brushes not found. Buying a new screwdriver at the end of the season there was no desire. Winter it will lie idle.

I found on the motor necessary voltage of 14.4 V. I acquired it.

Not suitable gear because electric motors for the screwdriver Interskol with other planetary gear. We had to drive out gear. It is good that there is there a stripper. Native gear shot easily. But with a new electric motor gear I had to beat a thin stem, put it under her thin slice of pliers. But before that tried to simply change the plastic part with brushes.

As it turned out, in electric motors with permanent magnets is set as the rotated brush (this I understood, carrying a couple of hours). Electric motors with brushes improperly installed just not spinning or spinning barely overheated and battery thermal protection (again, it was CP).

As a result, the brush returned to the new electric motors and knocked out gear. Solder the wires torn, smeared planetary gearbox with new grease and collected. The sound is like a new screwdriver. Already I checked in - they twisted renovated 1.5-flight sampling of metalloshtaketnika.

Do not allow the state of the electric screwdriver as in my case - check regularly brush and grease in the planetary gear at the end of the season or after a hard and long work with him. It is better to do in advance.

This is the second repair my Stayer. The first time the repair was in the form of replacement of battery cells. Acquired on aliekspress three years ago for 600 rubles. / Set. Second battery, too, has lost capacity. It is necessary to revise the elements and collect two sets of one, throwing sagging elements. And again, you can order a set of storage elements. It is possible even with increased capacity.

Screwdriver completely satisfied, because there is a case, and two batteries. The work is somewhere six seasons.

Photos from the screwdriver device for those who will have something to repair them:

I recommend to check the electric motor brushes, clean the dust and dirt from the inside of

And check and lubricate the planetary gear.

If the power screwdriver has fallen or is stopped abruptly, but brush the whole, the need to clean the slit between the contacts on the rotor:

They clogged conductive mud (with copper and graphite dust from brushes and contacts themselves). Battery will soon be discharged and falling torque screwdriver.

Details about the device, repair and maintenance of the screwdriver shown in this video:

I hope this material useful to someone and help restore his "partner."

Photos taken from public sources, with Yandex service. Pictures

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