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Adjustment Procedure
After everything has been installed for the upper shaft, remove rattles
from bearings (pressurizing).
1. Assemble all parts for the upper shaft.
2. Loosen two setscrews ❶ of the upper sprocket.
3. Enter the tip of a tapered minus screwdriver into the coupling ❷
slot until it stops. (Part A)
* If the screwdriver tip is not inserted fully in the slot, the flange
part of the upper sprocket is deformed or destroyed.
4. Lightly turn the screwdriver to move the coupling ❷ toward B in
the direction of the arrow.
* The torque to turn the screwdriver is 7kgf•cm. (Light turning is
sufficient.) If it is turned too strong, the flange part of the upper
sprocket is deformed or destroyed.
5. Tighten the setscrew ❶ of the upper sprocket.
6. Turn the upper shaft by 90 degress In regard to the second
screw, follow the same procedures as 3. to 5. above.
Results of Improper Adjustment
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