Tajima TCMX Series: Essential Maintenance Schedule & Wear Parts Guide

1. Needles high likelihood

How to tell

Frequent thread breaks, skipped stitches, poor stitch quality, or visible bending/burrs on the needle point. Needles are consumable and wear out with use.

Fix

1. Inspect the needle point and shaft for any damage, burrs, or bends.
2. Ensure the needle is inserted correctly and fully seated with the scarf facing the hook.
3. Replace the needle with a new, appropriate size and type (e.g., Organ PH-C120 Crocheted Towel Embroidery Needle for Tajima TMCE TCMX Machines) if any damage is found or after a set number of production hours (refer to your manual).

Parts involved: Needles & needle bars →

2. Rotary Hook high likelihood

How to tell

Excessive noise from the hook area, frequent thread breaks, loose loops on the underside of the embroidery, or visible nicks/grooves on the hook point or race. The hook can become worn or damaged by needle strikes.

Fix

1. Remove the bobbin case and inspect the rotary hook for any burrs, nicks, or rough spots, especially on the hook point and the bobbin case race.
2. Gently polish minor burrs with very fine emery cloth, but replace the hook if damage is significant.
3. Ensure the hook timing is correct after any significant intervention (refer to your machine manual).
4. Replace with a new Onloyo 050260010020 Rotary Hook Bobbin:Regular for Tajima TMLH TLMX TMCE TCMX Embroidery Machines if worn or damaged.

Parts involved: Rotary hooks & bobbin cases →

3. Needle Bar Guides medium likelihood

How to tell

Excessive play or wobble in the needle bar, needle deflection, increased needle breaks, or unusual noise from the needle bar area. Guides can wear down over time due to constant friction.

Fix

1. With the machine off, gently try to wiggle each needle bar side-to-side and front-to-back. There should be minimal play.
2. Visually inspect the guides for wear, scoring, or cracks.
3. If excessive play is detected or guides are visibly worn, replace them. This often requires removing the needle bar and associated components.
4. Use appropriate Tajima Needle Bar Guide (e.g., 090450036011, 090450049011, 09045005Y011) for your specific needle bar position.

Parts involved: Needles & needle bars →

4. Thread Path Components (Spring Hook, Tension Stud, Ceramic Coil, Thread Block) medium likelihood

How to tell

Inconsistent thread tension, frequent thread breaks, shredding thread, or visible grooves/nicks on any part the thread passes through. These parts experience constant friction from the thread.

Fix

1. Carefully inspect each component in the thread path from the thread cone to the needle eye.
2. Look for any sharp edges, burrs, or deep grooves on the Tajima 0C0220080000 EF0910000000 Spring Hook, Tajima 0C0210010012 FN0903000000 Thread Tension Stud Bolt, Tajima 516503010011 MX0521010000 Thread Guide Collar Ceramic Coil, and Tajima 050320350000 Thread Block.
3. Smooth minor imperfections with very fine abrasive paper or replace the component if damage is significant.
4. Ensure all components are clean and free of lint and debris.

Parts involved: Thread path & tension →

5. Needle Bar Reciprocator Set medium likelihood

How to tell

Irregular needle bar movement, excessive vibration, unusual knocking sounds from the head, or difficulty in smooth needle bar reciprocation. Components can wear due to constant high-speed motion.

Fix

1. Observe the needle bar movement during operation. It should be smooth and consistent.
2. With the machine off, manually rotate the main shaft to cycle the needle bars and feel for any binding or excessive play in the reciprocator mechanism.
3. Inspect the Tajima 080210360A79 UN25009400GN Needle Bar Reciprocator Set or Tajima 080210360A22 UN25009400GN Needle Bar Reciprocator GN[A] for visible wear, cracks, or looseness.
4. Replacement involves careful disassembly and reassembly, often requiring timing adjustments. Consult your service manual or a qualified technician.

Ensure you select the correct reciprocator set for your specific machine model and needle bar type.

Parts involved: Needles & needle bars →

6. Synchronous Belts low likelihood

How to tell

Skipped stitches, misaligned designs, unusual squealing or flapping noises, or visible cracks, fraying, or missing teeth on the belt. Belts can stretch or degrade over time.

Fix

1. Visually inspect all accessible synchronous belts for signs of wear, cracking, fraying, or missing teeth.
2. Check belt tension; it should be firm but not overly tight (refer to your manual for specific tensioning procedures).
3. If a belt is damaged or excessively stretched, replace it with the correct Tajima Synchronous Belt (e.g., 623500270000, 623500360000, 623500400000, 623500430000).
4. Ensure proper alignment of pulleys during replacement.

Parts involved: Belts, pulleys & gears →

7. Oil-Bushing Bobbin Shaft Sleeve low likelihood

How to tell

Increased noise from the bobbin winding area, excessive vibration, or the bobbin winder not functioning smoothly. Bushings wear over time, leading to increased friction and play.

Fix

1. Listen for unusual noises or feel for excessive vibration around the bobbin winder shaft.
2. With the machine off, check for play in the bobbin winder shaft.
3. If wear is suspected, the Onloyo 509179010000 EF0206000001 Oil-Bushing Bobbin Shaft Sleeve may need replacement. This typically involves disassembling the bobbin winder assembly.

Parts involved: Shafts, bearings & bushings →

8. TC Sensor Substrate Thread Break Sensor low likelihood

How to tell

False thread break errors, or the machine failing to detect actual thread breaks. Sensors can become dirty or fail electronically.

Fix

1. Clean the sensor area thoroughly with compressed air and a soft brush to remove lint and debris.
2. Check wiring connections to the Onloyo 0J2602300A23 TC Sensor Substrate Thread Break Sensor for looseness or damage.
3. If cleaning and connection checks don't resolve the issue, the sensor itself may be faulty and require replacement.

Parts involved: Sensors & switches →