T3-B T6-B Maintenance 12. Joint #4
108 T-B
series Maintenance Manual Rev.1
Apply the proper tension to U1 belt, and
secure the Joint #4 motor unit.
Set a suitable cord or string around the part
near the plate of the Joint #4 motor unit near
its mounting plate. Then, pull the cord
using
a force gage or similar tool to apply the
specified tension shown below.
U
1 belt tension:
29.0 N (2.95 ± 0.5 kgf)
Axial force (when pulling):
58 N (5.9 ± 0.5 kgf)
Apply the following torque to secure the
plate.
Tightening torque: 4 ± 0.2 N·m
To check belt tension with the tension meter, refer to “
12.3 Checking the Timing Belt
”.
Apply the proper tension to the Z belt, and
secure the Joint #3 motor
unit.
Set a suitable cord or string around the part
near the plate of the Joint #3 motor unit near
its mounting plate. Then, pull the cord using
a force gage or similar tool to apply the
specified tension shown below.
Z
belt tension:
34.5 N (3.5 ± 0.5 kgf)
Axial force (when pulling):
69.0 N (7.0 ± 0.5 kgf)
Apply the following torque to secure the
plate.
Tightening torque: 4 ± 0.2 N·m
To check belt tension with the tension meter, refer to
the following.
11.4 Checking the Timing Belt Tension (Z Belt)