Joint #1 - Replacing The Reduction Gear Unit; Backward) - Epson C Series Maintenance Manual

6-axis robots

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C8 Maintenance 5. Joint #1

5.1.2 Joint #1 - Replacing the Reduction Gear Unit

Belt tensile jig*

J1 brake positioning jig*

Wire tie (AB100)

Cross-point screwdriver (#2)

Torque wrench

Belt tension meter

Cloth (cushioning)

* 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: C8 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.

(M/C Cable Backward)

C8-A701** (C8)

C8-A901** (C8L)

C8-A1401** (C8XL)

width across flats: 2.5 mm

width across flats: 3 mm

width across flats: 4 mm

width across flats: 5 mm

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

For cross recessed head screws

For tightening torque control

Refer: Unitta U-505

For pressing arms

C Series Maintenance Manual Rev.2