The Color Change/Take-Up/Feeder Assembly is a sensitive component that should be repaired carefully following the procedures contained for each individual component. When repairing components on this assembly, do not loosen the screws that mount the housing to the upper arm body.
Figure 1 - Color Change/Take-Up/Feeder Housing Assembly
Do not attempt to repair or replace any component on the Color Change/Take-Up/Feeder Assembly except as provided by the below procedures:
Color Change Linear Actuator Replacement
Thread Feeder Gear Replacement
Thread Feeder Optical Sensor Replacement
Thread Feeder Radial Bearing Replacement
Thread Feeder Stepper Motor Assembly Replacement
Figure 2 - Take-Up Lever Drive Gear Assembly
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CAUTION!! Do not attempt to do any repairs or adjustment to the take-up lever drive gear, torsion spring or shaft. These components require a special fixture and specific training to adjust properly. If this component is tampered with, the entire Color Change/Take-Up/Feeder Assembly will have to be replaced. |
Replacement Procedure for Entire Color Change/Take-Up/Feeder Assembly:
2. Remove the needlecase assembly.
3. Disconnect the motor and PCB harnesses.
4. Use a marking pen and trace the outline of the base of the Color Change/Take-Up/Feeder Assembly on the upper arm body.
5. Remove the Color Change/Take-Up/Feeder Assembly by removing the three cap head screws mounting it to the upper arm assembly.
6. Measure the amount of the color change shaft that extends from the left side of the old color change motor.
7. Turn the color change spindle on the replacement assembly until it is the same as the replacement assembly.
8. Mount the replacement Color Change/Take-Up/Feeder Assembly to the upper arm body loosely.
9. Align the base of the Color Change/Take-Up/Feeder Assembly to the outline traced on the upper arm body from the old assembly and tighten the screws to Melco Torque Specifications.
10. Install the needlecase assembly.
11. Check and adjust the needlecase alignment as necessary using the procedures specified in "Needlecase Alignment Procedures".
