Hitachi UX Twin Nozzle Service Manual page 176

6 Shift the drive shaft as shown by an arrow and remove the shaft from the bearing.
7 Rotate the gear counterclockwise and remove the gear.
Turn counterclockwise
Gear
8 Install the new gear in reverse order of the procedures above.
When installing, coat the gear teeth with the silicone grease.
(Use Silicone Grease G501 made by Shin-etsu Chemical Co., Ltd.)
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