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8. Grease the inner side of the flexspline.
Grease: SK-2
Grease amount: 3 g
9. Install the wave generator to the shaft.
Insert the washer between the nut and the wave
generator.
Set an open-end wrench to the shaft and turn the nut.
Open-end wrench width for the shaft: 7 mm
Open-end wrench width for the nut: 8 mm
10. Grease the bearing of the wave generator.
Grease: SK-2
Grease amount: About to fill space between the balls.
11. Insert the wave generator to the reduction gear unit.
12. Install the O-ring (of the Joint #5 reduction gear unit) to
the Arm #4.
C Series Maintenance Manual Rev.2
C4 Maintenance 9. Joint #5
Nut
Washer
O-ring
129
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