Yamaha 4-axis model, 3-axis model owner manual Reference, Recommended tension gauge U-505 Unitta

Chapter 11 FXYBX/SXYBX

6)Measure the belt tension again with the procedure given in step 3). The belt adjustment is completed if the measured value is within the range given in Table 11-2. If the measured value is not within the range of Table 11-2, re- peat steps 3) to 5).

7)Tighten the motor plate installation bolt.

8)Install the belt cover.

Reference

(Adjusting the speed reduction belt tension with a tension measuring instrument)

Use of a belt tension gauge is recommended to obtain more accurate measure- ments.

Recommended tension gauge U-505 (UNITTA)

Measurement method

In step 3) of the adjustment of the speed reduction belt tension, pull the belt at the position where the load is applied, and adjust to the following values.

Model	Tension	Frequency	Span length	Belt width	Unit weight
	(N)	(Hz)	(mm)	(mm)	(g/mm width ⋅ m length)
FXYBX X-axis	44 to 49	180 to 190	82	20	2.5
FXYBX Y-axis	29 to 34	180 to 190	88.5	12	2.5
SXYBX X-axis, Y-axis	44 to 49	180 to 190	82	20	2.5

11-26