Joint #4 - Replacing The Timing Belt - Epson C8 Series Manipulator Manual

Maintenance 8. Joint #4

8.3 Joint #4 - Replacing the Timing Belt

Timing belt
Maintenance
Parts Belt tensile jig
Hexagonal
wrench
Cross-point screwdriver (#2)
Belt tension meter
Tools Nippers
Masking tape
Wire tie
Braid tube (600 mm or longer)
* 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 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
266
Name
(Joint #4)
width across flats: 2.5 mm
width across flats: 3 mm
(AB100 or equivalent)
Qty.
1 1655931
1 1674582
1 For M3 hexagon socket head cap bolt
1 For M4 hexagon socket head cap bolt
1 For cross recessed head screws
1 Refer: Unitta U-505
1 For cutting the wire tie
1 For protecting the connector clips
As
For passing the cables
needed
1 For passing the cables
Note
C8 Rev.13