The Y-Axis Backlash Is Excessive; The Y Or X Position Is Shifted - GRAPHTEC FC2250 Service Manual

9. TROUBLESHOOTING

9.1.6 The Y-axis Backlash is Excessive

(1) Adjust the perpendicularity of the Y bar (see section 7.5.4).
(2) Adjust the Y belt tension.

9.1.7 The Y or X position is shifted

(1) Adjust the Y or X belt tension.
(2) Confirm the Y or X belt is skipping from the drive pulley (see section 7.2.7, 7.2.8, 7.5.6).
(3) Apply a few quantity of the silicon grease to the X or Y drive pulley if the belt is skipping.
FC2250-UM-251-9370 9-12