Adjusting The Timing Belt Tension (X-Axis); Adjusting The Timing Belt Tension - Yamaha XY-X Series Owner's Manual

Chapter 11 FXYBX/SXYBX
7

Adjusting the Timing Belt Tension

The motor and speed reduction gear casing are extremely hot after auto-
matic operation, so burns may occur if these are touched. Before han-
dling these parts, turn the controller power OFF, wait for a while and check
that the part has cooled.
There is a risk of injury if fingers, etc., are caught between the drive sec-
tion pulley and belt. Always turn the controller power OFF and carefully
carry out the work if these parts may be contacted.
!
The position will deviate when the belt tension is adjusted.
Carry out return-to-origin or absolute reset, and reset the point data.
The X-axis and the Y-axis for the FXYBX and SXYBX use a timing belt to drive
the slider.
If the timing belt tension is week, adjust the belt tension with the following pro-
cedures.
Pulley
Fig. 11-19 Adjusting the speed
WARNING
WARNING
CAUTION
L/2 L/2
Push-pull scale
Deflection
Load
Belt
Pulley
reduction belt tension
Push-pull scale
Nut
Fig. 11-21 Stay (example)
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Table
Fig. 11-20 Adjusting the drive
Belt
Nut
Hole
Stay
3.2 thick sheet metal
11-22
Push-pull scale
Deflection
Load
Belt
Pulley
belt tension
5
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