Joint #2 - Replacing The Timing Belt; Removal: Joint #2 Timing Belt; Installation: Joint #2 Timing Belt - Epson C Series Maintenance Manual

6-axis robots

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6.3 Joint #2 - Replacing the Timing Belt

Hexagonal wrench

(width across flats: 3 mm)

Cross-point screwdriver

Torque wrench

1. Follow Removal steps (2) through (4) of C4 Maintenance: 6.1 Joint #2 – Replacing the Motor.

2. Remove the Arm #1 side cover.

For details, refer to C4 Maintenance: 3. Covers.

3. Loosen the Joint #2 motor unit set screw.

Hexagon socket head cap bolts: 3-M4×18

4. Remove the Joint #2 timing belt.

Remove the timing belt from the pulley 1 first.

Then, remove the timing belt from the pulley 2.

This procedure is common in C4-A601** and C4-A901**.

1. Place the Joint #2 timing belt to the pulley 1 and the pulley 2 of the Joint #2.

Place the timing belt to the pulley 2 first. Then, place the timing belt to the pulley 1.

2. Secure the Joint #2 motor unit.

For details, refer to C4 Maintenance: 6.1 Joint #2 – Replacing the Motor, Installation steps (6), (8), and (9).

C Series Maintenance Manual Rev.2

Joint #2 of C4-A601**

Joint #2 of C4-A901**

(with a plain washer)

C4 Maintenance 6. Joint #2

For M4 hexagon socket head cap bolt

For pressing arms

For belt tension