Epson C Series - Joint #4 - Replacing the Timing Belt

C8 Maintenance 8. Joint #4
358 C Series Maintenance Manual Rev.2
8.3 Joint #4 - Replacing the Timing Belt
Name Qty. Note
Maintenance
Parts
Timing belt (Joint #4)
1
1655931
Belt tensile jig
1
1674582
Tools
Hexagonal
wrench
width across flats: 2.5 mm
1
For M3 hexagon socket head cap bolt
width across flats: 3 mm
1
For M4 hexagon socket head cap bolt
Cross-point screwdriver (#2)
1
For cross recessed head screws
Belt tension meter
1
Refer: Unitta U-505
Nippers
1
For cutting the wire tie
Masking tape
1
For protecting the connector clips
Wire tie (AB100 or equivalent)
As
needed
For passing the cables
Braid tube (600 mm or longer)
1
For passing the cables
* The belt tensile jig is an assembly jig. Use the 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.
Removal: Joint #4 Timing belt
1. Remove the Joint #4 motor unit.
For details, refer to C8 Maintenance: 8.1 Joint #4 – Replacing the Motor, Installation steps (1) through
(6).
2. Remove the connectors inside the Arm #3
and the air tube
(transparent).
Connectors:
X71, X72, X041,
BR041, BR051, PS,
BT4, BT51, X141, X151, X161
3. Remove the cable bracket inside the Arm #3.
Hexagon socket head cap bolts: 4-M4×10