Canon imageRUNNER ADVANCE C5000 Series Technical Workbook page 53

b-29) Remove the one-way gear unit [1]. Check if there is no breakage or the parallel pins are securely fitted.
There are 2 parallel pins. Remove the one-way gear unit [1] and 50T gear [2] to check them.
b-30) If the one-way gear has a crack, prepare a new type 18T one-way gear (FU6-0584-000) with
increased strength, and replace the old one with the new type. Photo [A] is a new type whereas [B] is an old
type.
b-31) Assemble the parts in reverse order from step b-29) to b-1).
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