How to Fix a Frozen Loose Ball Bottom Bracket

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How to Fix a Frozen Loose Ball Bottom Bracket: 手順 0、 3の画像 1

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Screw the head of crank extractor into the dust cover hole by hand until it is snug.
Be careful to thread the extractor in gently to avoid cross-threading the crank arms. One way to do this is to move the extractor the wrong way (counterclockwise) at the start until you feel the slight bump of the threads engaging, then start threading the extractor in as normal.
Screw the handle of the crank extractor into the head.
Rotate the handle of the crank extractor clockwise until the crank arm is completely loose from the bottom bracket, then remove the crank arm.
Unscrew the handle and head of the crank extractor from the crank arm and repeat the process on the other side.

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