Epson C12 Series, Manipulator Manual, Page: 122 / 314

Maintenance 4. Cable Unit
108 C12 Rev.3
4.1.1 Replacing the Cable Unit (M/C Cable Backward)
Name Qty. Note
Maintenance
Parts
Cable unit 1 2172931
Belt tensile jig* 1 1674582
J1 brake positioning jig* 1 1675081
Wire tie
AB100 1 1675753
AB150 1 1675754
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
Box
wrench
width across flats: 5 mm 1 For D-Sub connector
Long nose pliers 1 For removing an air tube
Nippers 1 For cutting a wire tie
Cross-point screwdriver (#2) 1 For cross recessed head screws
Torque rench 1 For tightening torque control
Belt tension meter 1 Refer: Unitta U-505
* The belt tensile jig is an assembly jig. Use this 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 motor, tilt the Arm #2 and press it against the Arm #1.
Reference: Maintenance: 6.1 Joint #2 - Replacing the Motor, Removal step (2)
When removing the Joint #3 motor, tilt the Arm #2 and press it against the Arm #2.
Reference: Maintenance: 7.1 Joint #3 - 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.