Epson C Series Maintenance Manual page 151

16. Insert the gear unit.
The bearing of the gear unit has shim rings. Insert them
together.
Use the same number of the shim rings to the same position
as removed shim rings.
17. Install the bearing retainer plate.
Hexagon socket head cap bolts: 4-M3×6
Tightening torque: 2.5 N·m (25 kgf·cm)
18. Install the Joint #6 pulley 2.
Hexagon socket set screws: 2-M3×5 (with a brass bushing)
Set the set screw on the flat face of the shaft. For the other
set screw, insert the brass bushing to the end.
19. Place the Joint #6 timing belt (6×324 mm) to the Pulley 1 and 2
and fix it temporarily.
Check that the teeth of the timing belt engage with these of the
pulley.
When securing the motor unit temporarily, 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.
20. Apply tension to the Joint #6 motor unit and fix it.
Joint #6 timing belt tension = 39.2 N ± 9.8 N (4 kgf ± 1 kgf)
Secure the Joint #6 motor unit by applying tension.
Hexagon socket head cap bolts: 2-M4×15 (with a plain washer)
Tightening torque: 4.9 N·m (50 kgf·cm)
C Series Maintenance Manual Rev.2
C4 Maintenance 9. Joint #5
Shim ring
Pulley 2 (large)
Pulley 1
Pulley 2
131