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2.2.2 Installation cautions 
◆  Before installation, please wipe the "rust-proof agent" of the extension end 
of the servo motor shaft, and then do the relevant rust-proof treatment. 
◆  It is forbidden to impact the extension end of the shaft during installation, 
otherwise the internal encoder will be broken. 
◆  When  the  pulley  is  installed  on  the  servo  motor  shaft  with  keyway,  the 
screw hole  is used  at the  end of  the shaft.  In order to  install the  pulley, the 
double-headed nails are inserted into the screw holes of the shaft, the washer is 
used on the surface of the coupling end, and the pulley is gradually locked with 
the nut. 
◆  For the servo motor shaft with keyway, use the screw hole at the end of the 
shaft to install. For shaft without keyway, friction coupling or similar methods 
are used. 
◆  When  the  pulley  is  dismantled,  the  pulley  mover  is  used  to  prevent  the 
bearing from being strongly impacted by the load. 
◆  To  ensure  safety,  protective  covers  or  similar  devices,  such  as  pulleys 
installed on shaft, are installed in the rotating area. 
◆  When installing the servo motor, make it conform to the centering accuracy 
requirement shown in the picture below. If the centering is inadequate, vibration 
will  occur,  and  sometimes  the  bearing  and  encoder  may  be  damaged.  When 
installing the coupling, please do not directly impact the motor shaft, otherwise 
the encoder installed on the opposite side of the load shaft will be damaged. 
◆  Servo motor can be installed in horizontal or vertical direction. 
The  maximum  and  minimum  deviations  are 
less  than 0.03mm  (rotated  with  the  coupling) 
measured at four locations in a circle. 
 
The  maximum  and  minimum  deviations  are  less  than  0.03mm 
(rotated with the coupling) measured at four locations in a circle.