Maintenance 5. Replacing the Motors (Joint #3)
116
E2C Rev.6
5.5 Replacing the Joint #3 Motor
CAUTION
■
When removing the pulley from the brake, be sure to slide it out perpendicularly
from the shaft. Removing the pulley horizontally from the shaft will damage the
leaf spring and result in malfunction of the brake.
A brake is mounted on the motor of Joint #3 to prevent the shaft from moving down due to
the weight of the end effector while the power to the Controller is OFF or while the motor
is in OFF status (MOTOR OFF).
Note that the brake will not work during the replacement procedure.
Move the shaft down to its lower limit before starting the replacement procedure by
following the instructions below:
(1) Turn ON the Controller.
(2) Push down the shaft to its lower limit while pressing the brake release button switch.
Be careful that the end effector does not hit any peripheral equipment.
The brake release button switch is applied to both Joints #3 and #4. When the brake
release button switch is pressed, the respective brakes of the Joints #3 and #4 are
released simultaneously.
Be careful of the shaft falling and rotating while the brake release button switch is
being pressed because the shaft may be lowered by the weight of an end effector.
(3) Turn
OFF
the
Controller.
Removal
(1) Remove the arm top cover.
For details on the removal method, refer to
Maintenance: 3.1 Arm Top Cover
.
(2) Cut off the wire tie binding the duct plate,
motor, and cables together.
(3) Remove the duct plate.
Duct plate
3-M5
×
1
5
(4) Cut off the wire tie binding motor cables to the Joint #3 motor.
(5) Disconnect the connectors X131, X31, and X32.
To disconnect the X131 connector, pull it out while pushing the projection next to the
connector.
)
NOTE
)
NOTE
Summary of Contents for E2C Series
Page 1: ...SCARA ROBOT E2C series MANIPULATOR MANUAL Rev 6 EM069R1409F ...
Page 2: ...MANIPULATOR MANUAL E2C series Rev 6 ...
Page 8: ...vi E2C Rev 6 ...
Page 14: ......
Page 82: ......
Page 92: ...Maintenance 2 General Maintenance 80 E2C Rev 6 ...
Page 118: ...Maintenance 4 Replacing the Cable Unit 106 E2C Rev 6 ...
Page 194: ...Maintenance 11 Replacing the Signal Relay Board 182 E2C Rev 6 ...