Epson C Series, Maintenance Manual

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C12 Maintenance 5. Joint #1
510 C Series Maintenance Manual Rev.2
5.1.2 Joint #1 - Replacing the Reduction Gear Unit
(M/C Cable Backward)
Name Qty. Note
Maintenance
Parts
Reduction gear unit (Joint #1) 1 1674604
Belt tensile jig* 1 1674582
J1 brake positioning jig* 1 1675081
Wire tie (AB100) 1 1675753
Tools
Hexagonal
wrench
width across flats: 2.5 mm
1 For M3 hexagon socket head cap bolts
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 1 Refer: Unitta U-505
Cloth (cushioning) 1 For pressing arms
* The belt tensile jig and J1 brake positioning jig are assembly jigs. Use the jigs 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 motor unit, tilt the Arm #2 and press it toward 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.