MAINTENANCE MANUAL
51
STE 85357
Table 2.4 Value of tension of axis 3 timing belt (THL300, THL400)
Value of tension [N]
Unit mass [g/m]
Belt width [mm]
Span [mm]
48 to 64
2.2
9
45
Fig. 2.31 Adjusting axis 3 tension (THL300, THL400)
7)
Connect the connectors and return them to their original location, mount the
arm 2 cover, and perform home setting for Axes 3 and 4. This completes the
replacement of the timing belt. When replacing the 3rd-axis timing belt, be sure
to set the 4th-axis home position.
8) Turn on the power. While pressing the brake release switch in the servo off
mode, move the ball screw in the vertical direction. Make sure of the smooth
Tension meter
[Bolts for adjusting tension]
M3 x 12 x 2 pcs.
Hexagon nuts
[Axis 3 motor
plate set bolt]
Flange head bolt
M4 x 8 x 4 pcs.
Axis 3 timing belt
Tension meter