Yamaha 4-axis model, 3-axis model owner manual Periodic inspection of the ZS/ZRS unit

5-3 Periodic inspection of the ZS/ZRS unit		8-29
5-3-1	Replenishing grease to the Z-axis ball screw and ball spline	8-29
5-3-2	Adjusting the R-axis belt tension (ZRS)	8-30
5-3-3	Replacing the R-axis harmonic drive (ZRS)	8-31