Brother CS-80 Tire Ring Replacement

はじめに

Use this guide to replace a worn out tire ring for the bobbin winder of a Brother CS-80 sewing machine.

Over time and with constant usage, the bobbin winder tire ring in a Brother CS-80 sewing machine can wear out, break, or even disintegrate. You may need to replace your tire ring if your machine has issues with winding the bobbin correctly.

必要な工具と部品

手順1 Tire Ring

Brother CS-80 Tire Ring Replacement, Tire Ring: 手順 1、 3の画像 1

Brother CS-80 Tire Ring Replacement, Tire Ring: 手順 1、 3の画像 2

Brother CS-80 Tire Ring Replacement, Tire Ring: 手順 1、 3の画像 3

Turn off the machine.
Unplug both the power cord and the foot pedal.

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手順2

Slide the clear flap to the left to remove it.

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手順3

Brother CS-80 Tire Ring Replacement: 手順 3、 3の画像 3

Pull the latch to detach the bobbin cover.

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手順4

Remove the bobbin from the bobbin shuttle.

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手順5

Use a flathead screwdriver to pry off the plastic plate that surrounds the bobbin shuttle.

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手順6

Brother CS-80 Tire Ring Replacement: 手順 6、 3の画像 3

Open the bobbin winder cover.
Flip up the spool pin.

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手順7

Brother CS-80 Tire Ring Replacement: 手順 7、 3の画像 3

Remove the grey bobbin winder seat from the bobbin winder shaft.

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手順8

Brother CS-80 Tire Ring Replacement: 手順 8、 3の画像 3

Remove the 13 mm Phillips head screw from the left side of the bobbin winder.
Place the screw on a magnet (or in a tray) to ensure you don't lose it.

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手順9

Brother CS-80 Tire Ring Replacement: 手順 9、 3の画像 3

Pry off the bobbin winder thread spool pin and the attached bottom plate of the bobbin winder area.
Use a flathead screwdriver to assist you in removing the plate.

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手順10

Remove the 8 mm Phillips screw from the metal plate to the right of the motherboard.

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手順11

Open the thread compartment.
Press the back level on left side of the machine to eject the thread cassette compartment.

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手順12

Brother CS-80 Tire Ring Replacement: 手順 12、 3の画像 3

Remove the thread cassette compartment by pulling it up.
Remove the front clear shield to the thread cassette compartment holder by pulling it away from the machine.

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手順13

Remove the single 19 mm Phillips head screw from the back of the internal thread cassette compartment area.

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手順14

Turn the machine so the back is facing you.

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手順15

Brother CS-80 Tire Ring Replacement: 手順 15、 3の画像 3

Remove the three large 19 mm Phillips head screws from the back left face of the machine.

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手順16

Remove the 19 mm Phillips head screw from behind the handle of the machine.

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手順17

Remove the large 19 mm Phillips screw from the bottom right of the machine.
You should have removed a total of five 19 mm large screws from the back face.

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手順18

Brother CS-80 Tire Ring Replacement: 手順 18、 3の画像 3

Remove the 33 mm Phillips head screw by the presser foot lever.

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手順19

Slowly pull apart the two sides of the sewing machine.
The two halves will still be partially attached by cables on the inside. Take care not to damage any of the cables.

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手順20

Gently disconnect the ribbon cable from the motherboard.

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手順21

Disconnect the 6-pin connector from the motherboard.

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手順22

Brother CS-80 Tire Ring Replacement: 手順 22、 3の画像 3

Completely pull apart the two halves of the machine.
Set aside the front side piece.
Place the back piece down so that the inside faces upwards.

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手順23

Brother CS-80 Tire Ring Replacement: 手順 23、 3の画像 3

Remove the gold 9 mm Phillips screw from the front right of the motherboard.
Remove the two silver 7 mm Phillips head screws from the front and back of the left side of the motherboard.

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手順24

Brother CS-80 Tire Ring Replacement: 手順 24、 3の画像 3

Slide out the motherboard from the white plastic motherboard housing.
Handle the motherboard gently to avoid damaging the circuits or connectors.

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手順25

Disconnect the 3-pin connector from the front left side of the motherboard.

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手順26

Disconnect the 4-pin connector from the left underside of the motherboard.

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手順27

Brother CS-80 Tire Ring Replacement: 手順 27、 3の画像 3

Flip the motherboard over so it rests upside down and away from the balance wheel.
Handle the motherboard gently to avoid damaging the circuits or connectors.

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手順28

Use a flathead screwdriver to pry off the tire ring.
The tire ring may have disintegrated and deposited black rubber on the inside of the machine. If so, clean the area with cotton swabs damp with isopropyl alcohol and paper towels. Wearing disposable gloves is recommended.

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