Yamaha 3-axis model Manual Do Utilizador

11-25

1) Turn the controller power OFF.

2) Remove the end cover.

3) Apply the load listed in Table 11-2 at the center of both pulleys, and measure

the deflection at that point. If the results are within the range given in Table
11-2, the tension is suitable.

Model

Load (N)

Load (kgf)

Deflection (mm)

FXYBX  X-axis

FXYBX  Y-axis

SXYBX  X-axis, Y-axis

5.9 to 6.9

3.9 to 4.6

5.9 to 6.9

0.6 to 0.7

0.4 to 0.47

0.6 to 0.7

3

3

3

Table 11-2 Speed reduction belt load and deflection

4) If adjustments are required, loosen the motor plate installation bolt.

5) If the value measured in step 3) is less than Table 11-2, move the motor case

in the direction to increase the tension. If larger than the values given in Table
11-2, move the motor case in the direction to decrease the tension.

Motor plate 
installation bolt

Tension increases

Tension increases

Tension decreases

Tension decreases