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This repair requires timing and other adjustments and can only be done by a Melco authorized service technician. |
The thread feeder gear will need replaced only when the teeth on the plastic gear are broken or worn excessively. It is important that you apply lubricant to the gear after you install a new one. Always install new retaining ring when replacing the thread feeder gear.
Replacement parts needed:
Gear, Thread Feeder, Z=28, M=1mm
Ring, Retaining, External, 5mm Shaft (always use a new retaining ring)
Washer, S/S, 5.1mm ID X 8.3mm OD
Replacement Procedures:
Figure 1 - Thread Feeder Gear
1. Color change to needle 1.
2. Turn the machine OFF.
3. Remove the right color change cover.
4. Use a pair of small ring spreader pliers and remove the retaining ring.
4. Remove the thread feeder gear and washer.
5. Install a replacement gear and washer, aligning the teeth of the gear to the drive gear on the thread feeder motor.
6. Install the retaining ring in the groove on the gear shaft.
7. Reinstall the right color change cover.
