What's inside Sewing Electric Motor and Repair Tips

Sewing Electric Motor - 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.

Sewing Electric Motor - Repair Tips, view 1

Such type of sewing machine motor easy to replace. The motor attached to the body of the sewing machine with a single screw.

Sewing Electric Motor - Repair Tips, view 2

With these screws the engine is mounted to the support. This mount (two screws) allows you to adjust the belt tension.

Sewing Electric Motor - Repair Tips, view 3

Remove the bracket from the motor housing.

Sewing Electric Motor - Repair Tips, view 4

Remove this screw and you will be able to remove a pulley.

Sewing Electric Motor - Repair Tips, view 5

The pulley is removed with effort.

Sewing Electric Motor - Repair Tips, view 6

The pulley can be metal or plastic.

Sewing Electric Motor - Repair Tips, view 7

Now let's look inside the motor housing. The shell of sewing machine motor has two parts that fixed together by four screws.

Sewing Electric Motor - Repair Tips, view 8

Remove these screws with flat screwdriver.

Sewing Electric Motor - Repair Tips, view 9

View from above.

Sewing Electric Motor - Repair Tips, view 10

At this photo shows commutator bar of electric motor. Its surface should not have any dirt and scratches.

Sewing Electric Motor - Repair Tips, view 11

If the engine does not work, check these contacts.

Sewing Electric Motor - Repair Tips, view 12

Checking the integrity of windings is possible only by a special device.

Sewing Electric Motor - Repair Tips, view 13

The axis a motor has two bearings that can be lubricated.

Sewing Electric Motor - Repair Tips, view 14

Pour here two or three drops of oil no more.

Sewing Electric Motor - Repair Tips, view 15

On the opposite side of electric motor also needed add two or three drops of oil.

Sewing Electric Motor - Repair Tips, view 16

Copper wire windings must have a clean bright look.

Sewing Electric Motor - Repair Tips, view 17

Such electric motor has the carbon brushes.

Sewing Electric Motor - Repair Tips, view 18

Straighten this plate.

Sewing Electric Motor - Repair Tips, view 19

Be careful, inside is a spring.

Sewing Electric Motor - Repair Tips, view 20

This spring presses the carbon brush closer to the commutator bar.

Sewing Electric Motor - Repair Tips, view 21

The surface of the commutator must be clean.

Sewing Electric Motor - Repair Tips, view 22

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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