Specifications

9. Position the outer split-hub clamp and spacer against the left outside of the
bracket and the color change cam against the two 2.75mm thrust washers and
thrust bearing combination to take up the slack. Tighten the split-hub clamp.
10. Position the inner split-hub clamp against the two 1.00mm thrust washers and
thrust bearing combination and the pulley and spacer against the right outside
of the bracket to take up the slack. Tighten the clamp and pulley.
11. Check that the rotation of the cam assembly provides a smooth operation and is
free of any binding. If this is not true, rework the previous two steps until the
operation is acceptable.
12. Remove the color change PCB.
13. Lay the color change mount key into the embroidery head keyway (see Figure
3-23), then put the color change bracket (with the cam and hardware) into
position.
14. Ensure the needle case is positioned with the needle centered in the needle plate
hole by moving the color change bracket to obtain the needle centering, then
tighten the color change bracket screws (see Figure 3-23).
15. Reinstall the color change motor and adjust the motor belt tension as previously
described.
16. Reinstall the color change PCB as previously described.
17. Reattach the color change area covers and the tensioner covers.
color change
bracket
color
change cam
split-hub clamp
thrust washer
(1.00mm thick)
thrust washer
(2.75mm thick)
thrust
bearing
thrust
bearing
spacer
shaft
spacer
split-hub
clamp
pulley
Figure 3 - 24
3 - 26 Color Change
EMT 10/4T Technical Manual Melco Embroidery Systems