Epson C Series, Maintenance Manual

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C12 Maintenance 6. Joint #2
548 C Series Maintenance Manual Rev.2
9. Mount the Arm #1 cover and the Arm #1 side cover.
For details, refer to C12 Maintenance: 3. Covers .
10.
Perform calibration.
For details, refer to
C12 Maintenance: 16. Calibration
.
6.2 Joint #2- Replacing the Reduction Gear Unit
Name Qty. Note
Maintenance
Parts
Reduction gear unit (Joint #2) 1 1674606
O-ring
(Joint #2) Arm #1 1 1670635
Arm #2 1 1656140
Belt tensile jig* 1 1674582
Tools
Hexagonal
wrench
width across flats: 2.5 mm 1
For M3 hexagon socket head cap bolts
For M5 hexagon socket set screws
width across flats: 3 mm 1 For M4 hexagon socket head cap bolts
width across flats: 4 mm 1 For M5 hexagon socket head cap bolts
width across flats: 5 mm 1 For M6 hexagon socket head cap bolts
Cross-point screwdriver (#2) 1 For cross recessed head screws
Torque wrench 1 For tightening torque control
Belt tension meter (0.5 mm) 2 For adjusting the pulley position
Belt tension meter 1 Refer: Unitta U-505
Cloth (cushioning) 1 For pressing arms
* The belt tensile jig is an assembly jig. Use the jig when adjusting belt tension.
The brake is mounted on each joint to prevent the arm from lowering due to its own weight while the
Controller power is OFF or the motor is OFF status. The brake does not work during replacement.
Be careful when performing maintenance work.
When removing the Joint #2 timing belt, tilt the Arm #2 and press it against the Arm #1.
Reference: C12 Maintenance: 6.1 Joint #2 - Replacing the Motor, Removal step (2)
When pressing the arm, put a piece of cloth or a similar material between the arms to avoid contacting each
other. This protects the arm surfaces from scratching and paint peeling off.