Epson C Series, Maintenance Manual

Page: 295 / 668

C8 Maintenance 5. Joint #1
C Series Maintenance Manual Rev.2 275
4. Install the Joint #1 electromagnetic brake / brake plate to the Joint 1
motor unit.
Hexagon socket head cap bolts: 3-M4
×
20
Tightening torque: 4.0 ± 0.2 N·m
Check that the motor and the brake core are aligned.
Regarding brake misalignment:
- Misalignment of the brake core may cause abnormal sound or
apply abnormal torque on the brake. It may result in breakdown
of the brake.
When using the J1 brake positioning jig (maintenance part):
Using the J1 brake positioning jig, check that the motor and the brake
core are aligned when fixing the brake.
If the J1 brake positioning jig cannot be inserted all the way, the motor
and the brake core may be misaligned. In such a case, use the brake
release unit (option part) to release the brake, and then align the brake.
Correct
Wrong
5. Install the brake power supply to the plate. Make sure to install the
brake power supply so that the cables will be in the direction as
shown in the photo.
Cross recessed head screws with washer: 2-M3×6
Tightening torque: 0.45
± 0.1 N·m
6. Connect the following connectors.
Connectors: X11, X010, BT1, BR011
7. Mount the connector plate (M/C cable backward).
For details, refer to C8 Maintenance: 3. Covers .
8. Mount the base maintenance cover.
For details, refer to C8 Maintenance: 3. Covers .
9. Calibrate the Joint #1.
For details, refer to C8 Maintenance: 16. Calibration .