2.6.2  Timing Belt Locations 
 
 
 
 
 
 
 
 
 
 
 
 
Fig. 2.11    Timing belt locations 
  2.6.3  Replacing Axis 3 Timing Belt 
  1)  Remove the arm 2 cover.    (See Para. 2.4.1.) 
  2)  Disconnect the axis 3 motor base which remains attached with the motor and 
pulley.    For the disconnecting procedures, see Para. 2.5.7. 
 
•  The axis 3 motor is provided with a brake.    At replacement of the axis 3 timing 
belt, this brake becomes inoperative.    Before starting the work, therefore, 
move down the ball screw spline to the lower limit.    Otherwise, the shaft will 
drop due to the dead weight of the shaft or workpiece, and your hand or finger 
may be caught. 
 
  3)  Disconnect the axis 3 timing belt. 
 
 
 
 
 
 
 
STE 85306 
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