Maintenance 6. Joint #3 (Replacing the Motor)
128 S5 Rev.5
Maintenance
Parts
Grease for reduction gear
folding the upper structure (Arms #3 to #6) to the stop side before the
replacement.
Arm #2 Cover.
efer to the Maintenance 3.2 Arm #2 Cover.
Connect the backup battery to the Joint #3 motor cable.
Remove the Joint #3 motor cable from inside of
the manipulator.
Remove the Joint #3 motor and the Joint #3 motor plate from the Arm #2.
GT-SA bolt: 2-M4×16 (with M4 washer)
Remove the Joint #3 motor plate from the Joint #3 motor.
Hexagon socket head cap bolt: 3-M4×16 (with disc spring 2H-4, M4 washer)
Remove the Joint #3 input pulley from the Joint #3 motor.
Hexagon socket head cap bolt: 1-M4×18 (with disc spring 2H-4)
WARNING
■
use at least two people when removing the motor unit. Remove the
motor unit while one person
is supporting the upper structure (Arms #3 to #
upper structure folds inward at Joint #3 as soon as the motor unit is removed
released. Failure to properly support the upper structure may
rious bodily injury and/or severe equipment damage.
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