What's inside Sewing Electric Motor and Repair Tips
Look what is inside the sewing electric motor. These photos help you understand how to clean and fix an electric motor of home sewing machine.
First, it should be noted that this type of motors is used at old models of sewing machines. Current models of sewing machines are equipped with electric motors that are located inside the sewing machine shell.
Such type of sewing machine motor easy to replace. The motor attached to the body of the sewing machine with a single screw.
With these screws the engine is mounted to the support. This mount (two screws) allows you to adjust the belt tension.
Remove the bracket from the motor housing.
Remove this screw and you will be able to remove a pulley.
The pulley is removed with effort.
The pulley can be metal or plastic.
Now let's look inside the motor housing. The shell of sewing machine motor has two parts that fixed together by four screws.
Remove these screws with flat screwdriver.
View from above.
At this photo shows commutator bar of electric motor. Its surface should not have any dirt and scratches.
If the engine does not work, check these contacts.
Checking the integrity of windings is possible only by a special device.
The axis a motor has two bearings that can be lubricated.
Pour here two or three drops of oil no more.
On the opposite side of electric motor also needed add two or three drops of oil.
Copper wire windings must have a clean bright look.
Such electric motor has the carbon brushes.
Straighten this plate.
Be careful, inside is a spring.
This spring presses the carbon brush closer to the commutator bar.
The surface of the commutator must be clean.
Clean it only with usual paper without abrasive.
English isn't my first language, so please excuse any mistakes and help correct them.
E-mail for sending is on the contact page.
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