Advice 1: How to rewind the motor yourself

In the course of work such an indispensable household tools like drill, hammer drill or angle grinder may sometimes fail. This files most often wears out the motor, or rather, his anchor or brushes of the collector. Don't rush into this case immediately throw away the faulty power tools. In some cases, you can rewind the motor yourself.
How to rewind the motor yourself
Instruction
1
Disassemble the device and inspect the motor. Before to remove the faulty winding, determine the number of turns. Separate the coil from the upper coil and cut. In the flame produce the firing of the coils and count the number of turns.
2
Do not remove manifold if the anchor will have to rewind manually. Inspect the manifold and check resistance of insulation relative to the housing. The resistance should not be less than 200 kω. Clean the header from the remnants of the old winding and cut the slots in the contact parts of the collector, and then to insert the ends of the rails for sealing.
3
Cleaned the anchor sugilite. Fabricate casings of electrical cardboard with a thickness of 0.2 mm and insert them in the slots of the armature. After you install the updated manifold, cleaning the armature and inserting it in the grooves of the sleeves start winding coils.
4
During circular winding down the turns of the coil successively to fill all the slots of the armature. Styling produce counterclockwise when viewed from the side of the shaft, such laying is called laying to the right.
5
Don't forget to apply a bandage to the coil in the center of the manifold to secure the turns of the coils. The bandage consists of several coils of their thick strands which should be wound tight and tie. Do not use a filament of nylon – it may melt during operation of the armature. The best variant – cotton thread.
6
Check the device for the absence of interturn short circuits and breakages of the winding. It must be done prior to treatment, since untreated anchor the faulty winding is easy to see.
7
To secure the turns of the coil produce impregnation. It can be made of epoxy for heat curing with a plasticizer. In the impregnation at home you can also use any nail Polish.
8
In the end, make the groove. It will depend on the degree of sparking. Runout should not exceed 0,05 mm. the Cutter must be properly sharpened for brass. At the end of the groove, make the second check for the absence of interturn short circuits.

Advice 2 : How to repair the motor

The motors are widely used in subsystems of a modern car. Sometimes in violation of the rules of operation or in the presence of manufacturing defects, the engine can completely fail or work intermittently. In some cases, to repair the motor, possible on their own in a home workshop. Engine repair starts with fault diagnosis and identify cause of failure.
How to repair the motor
You will need
  • - a set of bench tools;
  • tester;
  • - soldering iron;
  • - insulating tape.
Instruction
1
Start the repair by checking the status of the motor. Examine it to identify the external symptoms. It may be deformation or traces of residue on the windings. For inspection of the windings to pre-remove the engine protective cover (case) and clean the component parts from dust and possible contaminants.
2
During scheduled routine repairs to prevent and improve the reliability of the unit and perform a full disassembly of the motor with the notch of the rotor and the bulkhead weakened wedges.
3
Wash the bearings, measure the clearance in rolling bearings. In the presence of end production or cracks replace the items new. Check the Seating of the bearings on the motor shaft. Eliminate excessive interference or, conversely, slack.
4
Inspect the stator. Make sure of density of pressing steel plates and the mounting strength of struts in the channels. Heating and destruction of the windings can be caused by a weak pressing. Produce sealing sheets of steel, laying the leaves of mica or scoring getincome wedges.
5
After preventive maintenance, replace lubricant, clean the stator and rotor with the cover removed. Dry the engine by external heating. Use for drying blower, the hot air flowing through the openings of the engine. In the absence of a source of hot air drying can be carried out enabling the stator winding to low voltage.
6
In the presence of interturn short circuits or burnt windings make it rewind. To do this, remove the coil and insulation. Pick up and calculate the number of turns in accordance with the wire cross section. After winding, connect the coils soldered and rackline in the grooves. Dry new winding of one of the above ways.
7
After completing the repair, assemble subassemblies and test the engine for performance before installing in place.
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