Epson G Series Maintenance Manual page 189

(5) Apply the proper tension to the U2 belt, and then
(6) Apply the proper tension to the U1 belt, and then
(7) Connect the connector.
(8) Re-bundle the cables in their original positions with a wire tie removed in step (9).
(9) Connect the backup connectors of Joint #4, X64 to the battery board.
(10) Mount the battery board to Arm #2.
(11) Mount the user plate and ground wire to Arm #2.
(12) Install the arm top cover and arm bottom cover.
(13) Perform the calibration of Joint #4.
G series Maintenance Rev.3
secure the Joint #4 intermediate shaft unit.
Pass a suitable cord or string around the Joint #4
intermediate unit near its mounting plate.
Then, pull the cord using a force gauge or similar
tool to apply the specified tension shown in the
figure on the right.
secure the Joint #4 intermediate shaft unit.
Pass a suitable cord or string around the Joint #4
motor unit near its mounting plate.
Then, pull the cord using a force gauge or similar
tool to apply the specified tension shown in the
figure on the right.
Connector: X241, X41
Bundle the cables with wire tie to prevent the backup cable connectors from falling off
by mistake.
For details, refer to 3. Covers.
For details, refer to 14. Calibration.
G3 Maintenance 8. Joint #4
U2 belt tension =10 ± 1 kgf
Force gauge
Joint #4 intermediate shaft
3-M4×12 + washer
U1 belt tension = 7.5 ± 0.5 kgf
Joint #4
motor unit
3-M4×12
+ washer
Force gauge
2-M4×5
Battery board
2-M4×12
171