Maintenance 8. Arm #4
LS Rev.10 133
Keeping the U1 belt on the large pulley of
the Joint #4 intermediate shaft unit, set the
U2
belt in the Arm #2 on the small pulley
the gear grooves of the belts are
fit into those of the pulleys
Joint #4
Intermediate Shaft Unit
Loosely secure the Joint #4
Make sure the motor unit can be moved by hand, and it will not tilt when pulled.
If the unit is secured too loose or too tight, the belt will not have the proper tension.
Apply the proper tension to the U2
and then secure the Joint #4
intermediate shaft unit.
ass a suitable cord or string around the
4 intermediate shaft unit near its
Then, pull the cord using
or similar tool to apply the
the figure on the right.
U1 belt tension:
LS3 = 69 N (7.0 ± 0.5 kgf)
LS6 (a) = 69 N (7.0 ± 0.5 kgf)
LS6 (b) = 102 N (10.4 ± 0.5 kgf)
Joint #4
Intermediate Shaft Unit
check belt tension with the tension meter, refer to Maintenance: 8.4 Checking the
Loosely secure the Joint #4
Make sure the motor unit can be moved by
hand, and it will not tilt when pulled.
If the unit is secured too loose or too tight,
the belt will not h
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