Brother CS-80 Tire Ring Replacement

简介

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.

你所需要的

步骤 1 Tire Ring

Brother CS-80 Tire Ring Replacement, Tire Ring: 步骤 1 中的图像 1，3

Brother CS-80 Tire Ring Replacement, Tire Ring: 步骤 1 中的图像 2，3

Brother CS-80 Tire Ring Replacement, Tire Ring: 步骤 1 中的图像 3，3

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

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步骤 2

Remove the clear flap by sliding it to the left.

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步骤 3

Brother CS-80 Tire Ring Replacement: 步骤 3 中的图像 3，3

Pull the latch to detach the bobbin cover.

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步骤 4

Remove the bobbin from the bobbin shuttle.

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步骤 5

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

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步骤 6

Brother CS-80 Tire Ring Replacement: 步骤 6 中的图像 3，3

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

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步骤 7

Brother CS-80 Tire Ring Replacement: 步骤 7 中的图像 3，3

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

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步骤 8

Brother CS-80 Tire Ring Replacement: 步骤 8 中的图像 3，3

Unscrew 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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步骤 9

Brother CS-80 Tire Ring Replacement: 步骤 9 中的图像 3，3

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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步骤 10

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

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步骤 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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步骤 12

Brother CS-80 Tire Ring Replacement: 步骤 12 中的图像 3，3

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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步骤 13

Unscrew the singular 19 mm Phillips head screw from the back of the inside of the thread cassette compartment area.

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步骤 14

Turn the machine so the back is facing you.

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步骤 15

Brother CS-80 Tire Ring Replacement: 步骤 15 中的图像 3，3

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

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步骤 16

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

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步骤 17

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

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步骤 18

Brother CS-80 Tire Ring Replacement: 步骤 18 中的图像 3，3

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

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步骤 19

Slowly pull apart the two sides of the sewing machine.
The machine will still be partially attached on the inside.

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步骤 20

Gently disconnect the ribbon cable from the motherboard.

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步骤 21

Disconnect the 6-pin connector from the motherboard.

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步骤 22

Brother CS-80 Tire Ring Replacement: 步骤 22 中的图像 3，3

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

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步骤 23

Brother CS-80 Tire Ring Replacement: 步骤 23 中的图像 3，3

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

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步骤 24

Brother CS-80 Tire Ring Replacement: 步骤 24 中的图像 3，3

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

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步骤 25

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

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步骤 26

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

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步骤 27

Brother CS-80 Tire Ring Replacement: 步骤 27 中的图像 3，3

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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步骤 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 rubbing alcohol with q-tips and paper towels. Wearing disposable gloves is recommended.

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