Yamaha 3-axis model User Manual

4-3

Check the following points every six months, and make adjustments or replace-
ments as required.

Check for looseness, and tighten if necessary.

• Check for looseness in the X-axis, Y-axis and  

Z-axis drive section (ball screw, linear guide). 
Tighten if necessary.

• Check for vibration during operation. Tighten 

the drive section, and X-axis, Y-axis and Z-axis 
installation bolts if necessary.

• Check for looseness caused by wear. Contact 

YAMAHA if any abnormality is found.

Check for looseness. 
(Contact YAMAHA if any abnormality is found.)

• Check the timing belt tension.
• Check the timing belt for abnormalities (cracks 

or cuts).

• Check the cables for damage.
• Check the relay connectors, etc., for looseness.
• Inspect the timing belt for abnormalities (cracks 

or cuts).

• Check the timing belt tension.
• Check the terminals for looseness.
• Check the connection connectors for looseness.
• Check that the fan is rotating.
• Check whether anything is obstructing the fan.
• Check the rotating fan for abnormal sounds.
  Check visually if any abnormal sound is heard, 

and remove any foreign matter. Contact 
YAMAHA if no foreign matter is found.

• Check the fan cover for contamination. Remove 

and clean the cover if contaminated.

Robot's main bolts 
and screws
X-axis, Y-axis and  
Z-axis drive sections 
(ball screw, linear 
guide)

Z-axis ball spline and 
ball screw (for ZS, ZRS)
R-axis timing belt
 (for ZRS)

Wiring in robot

Belt
(for FXYBX, SXYBX,
  ZRS, HXYLX)
Controller

Controller rear panel 
cooling fan