Maintenance 7. Arm #3
140 G6 Rev.21
Push down the shaft to its lower limit while pressing the brake release switch. Be
sure to keep enough space and prevent the
hitting any peripheral
equipment.
The brake release switch is applied to both Joints #3 and #4. When the brake release
switch is pressed, the respective brakes of the Joints #3 and #4 are released
simultaneously.
(The brake for Joint #4 is only installed to G6-**3**.)
shaft falling and rotating while the brake release switch is
because the shaft may be lowered by the weight of an end effector.
top cover and the arm bottom cover.
For details, refer to Maintenance: 3. Covers.
Cut off the wire tie used for binding the motor cables
Disconnect the following connectors.
Connectors X231, X31 (Hold the claw to remove.)
Connector X63
Loosen four bolts on the Joint #3 motor unit.
Slide the Joint #3 motor unit to the end of the
arm.
Remove the Joint #3 motor unit from Arm
Unscrew the bolts securing the Joint #3 motor
unit. Remove the Z1 pulley from the Z belt.
Pull the Joint #3 motor unit upward to remove.
Remove the Joint #3 motor from the Joint #3
motor unit.
Remove the pulley from the Joint #3 motor.
There is a brass bushing in one of the
. Be careful not to lose it.