Epson Perfection 610 - Manual (Page 33)

EPSON Perfection 610 Revision B
Assembly and Disassembly Disassembly Procedures 33
5. Remove the hexagon nut at the rear end of the carriage guide shaft.
6. Remove the tension spring and the screw (gold, CBS, M3x4)
securing the driven pulley assembly.
Figure 4-13. Hexagon Nut Removal
Figure 4-14. Driven Pulley Assembly Removal (1)
Figure 4-15. Driven Pulley Assembly Removal (2)
Hexagon Nut
Tension Spring
CBS Screw (M3x4)