Specifications

9. The motor is now loose and can be removed.
10. Replace the motor and reverse the preceding steps.
11. Refer to (see Figure 3-21) for attaching the color change motor encoder harness
connector to the motor encoder.
12. Refer to the color change motor belt tension adjustment procedure to adjust the
belt.
Color Change Motor Belt Tension
The color change belt tension should cause the color change cam to rotate with
minimum backlash. The belt should be tensioned with some amount of slack so it is
not so tight that it wears the color change shaft and bushings needlessly.
Adjust the color change belt tension by loosening the color change motor
mounting screws (see Figure 3-22) and moving the motor to make the belt more or
less taut. A belt tension of 6-7 pounds is snug enough to take out any belt slack,
but is not so tight it binds the mechanics. When tightening the belt tension, use
hand pressure only on the motor. No additional force is needed.
Replace all the covers removed to perform this service.
color
change belt
slide motor left to
tighten belt or right
to loosen belt
color change
motor mounting
screws (4 each)
Figure 3 - 22
3 - 24 Color Change
EMT 10/4T Technical Manual Melco Embroidery Systems