C8 Maintenance 4. Cable Unit
C Series Maintenance Manual Rev.2 257
4.1.2 Replacing the Cable Unit (M/C Cable Downward)
Name Qty. Note
Maintenance
Parts
Cable unit
C8-A701*B* (C8)
1
For standard, cleanroom
2172929
C8-A901*B* (C8L)
1
For standard, cleanroom
2172930
C8-A1401*B* (C8XL)
1
For standard, cleanroom
2172931
J1 brake positioning jig*
Wire tie
Tools
Hexagonal
wrench
width across flats: 2.5
1 For M3 hexagon socket head cap bolts
For M4 hexagon socket head cap bolts
For M5 hexagon socket head cap bolts
For M6 hexagon socket head cap bolts
Box
width across flats: 5 mm 1 For D-Sub connector
Cross-point screwdriver (#2)
For cross recessed head screws
For tightening torque control
* 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: C8 Maintenance: 6.1 Joint #2 - Replacing the Motor, Removal step (2)
When removing the Joint #3 motor, tilt the Arm #3 and press it against the Arm #2.
Reference: C8 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.
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