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CHAPTER 5 Periodic Inspection
Fastening plate
7) While placing a steel rod or similar tool through the 7mm diameter hole at
the lower part of the spline, loosen the U-nut at the top of the spline with
the wrench, and remove the bearing and bearing mount plate.
(See Fig. 5-29.)
Use a round steel rod with a diameter slightly smaller than 7mm. Avoid
using a square rod because the spline might be damaged by the edge of the
rod.
At this point, be careful to keep the spline shaft from coming off the spline
nut.
8) Remove the bolts (M3×25L, 8 pieces) on the underside of the Y-axis arm
and remove the plate fastening the spline and the harmonic drive.
(See Fig. 5-30.)
M3×25
U-nut
Fig. 5-29
Fig. 5-30
5-38
Spline nut
Spline shaft
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