Epson C Series, Maintenance Manual

Page: 82 / 668

C4 Maintenance 5. Joint #1
62 C Series Maintenance Manual Rev.2
4. Put the Joint #1 timing belt to the Joint #1 pulley 2 on the Joint #1
side.
5. Pass the pulley 1 of the Joint #1 motor unit to the Joint #1 timing belt
and loosely secure it to the base.
Hexagon socket head cap bolts: 3-M4
×
20 (with a plain washer)
Make sure that the gear grooves of the timing belt are fit into those
of the pulley completely.
When securing the motor unit loosely, make sure that the motor unit
can be moved by hand and it does not tilt when being pulled. If the
unit is secured too loose or too tight, the belt will not have proper
tension.
6. Apply proper tension to the Joint #1 motor unit and secure it.
Pass a suitable cord or a string (insulation lock) to the drilled hole on the motor plate. Pull the cord using
a force gauge or a similar tool to apply specified tension.
Joint #1 timing belt tension: 78.4 N
± 9.8 N (8 kgf ± 1 kgf)
Apply proper tension to the Joint #1 motor unit and secure it.
Hexagon socket head cap bolt: 3-M4
×
20
(with a plain washer)
Tightening torque: 4.9 N · m (50 kgf · cm)
7. Connect the following connectors.
Connectors: X11, X010, BT1, BR011
8. Mount the connector plate.
For details, refer to C4 Maintenance: 3. Covers .
9. Calibrate the Joint #1.
For details, refer to C4 Maintenance: 16. Calibration .