Tajima TEMX Series: Essential Maintenance Schedule & Wear Parts Guide

1. Needles high likelihood

How to tell

Frequent thread breaks, skipped stitches, damaged fabric, dull or bent needle point, excessive noise during stitching.

Fix

1. Visually inspect needle points for burrs, bends, or dullness. Check for proper seating in the needle bar.
2. Replace any damaged needles immediately. Always use the correct needle type and size for your fabric and thread.
3. Ensure needles are inserted correctly with the scarf facing the hook.

Parts involved: Needles & needle bars →

2. Rotary Hook high likelihood

How to tell

Poor bobbin thread pickup, loose stitches, thread shredding in the bobbin area, unusual noise from the hook, burrs or nicks on the hook point.

Fix

1. Remove the bobbin case and inspect the rotary hook for lint buildup, burrs, or damage to the hook point.
2. Clean the hook area thoroughly with a brush and compressed air.
3. If burrs are present, they may be carefully polished with very fine emery cloth, but severe damage requires replacement.
4. Ensure the hook timing is correct after any significant cleaning or if stitch quality issues persist.

Parts involved: Rotary hooks & bobbin cases →

3. Thread Trimmer Blades (Fixed and Moving) medium likelihood

How to tell

Incomplete thread trims, frayed thread ends after trimming, thread jams in the trimmer mechanism, audible 'chewing' sound during trimming.

Fix

1. Inspect both the fixed and moving trimmer blades for nicks, dullness, or excessive lint buildup.
2. Clean the trimmer area thoroughly. Remove any trapped thread or debris.
3. If blades are dull or damaged, they must be replaced. Ensure proper alignment and gap between the blades after replacement.
4. Check the trimmer solenoid for proper function and ensure it fully engages the blades.

Parts involved: Cutters & trimmers →

4. Tension Discs and Springs medium likelihood

How to tell

Inconsistent thread tension, looping on top or bottom of the fabric, thread shredding at the tension assembly, visible grooves or damage on tension discs, weak or broken tension springs.

Fix

1. Remove tension discs and clean them thoroughly to remove lint and wax buildup. Inspect for burrs or grooves.
2. Check tension springs for proper tension and ensure they are not bent or broken. Replace if necessary.
3. Reassemble and test tension with a tension gauge or by stitching a test pattern.

Parts involved: Thread path & tension →

5. Tajima 090420060017 Stopper Lower Dead Point Needle Bar Connecting Stud medium likelihood

How to tell

Excessive vertical play in the needle bar, unusual clicking or knocking sounds from the needle bar area, inconsistent needle depth, difficulty with needle bar height adjustment.

Fix

1. Access the needle bar mechanism. Locate the connecting stud at the lower dead point of the needle bar.
2. Inspect the stud for wear, looseness, or damage. Check for play between the stud and its mating components.
3. If worn or loose, carefully remove the old stud and install a new Tajima 090420060017 Stopper Lower Dead Point Needle Bar Connecting Stud.
4. Ensure proper needle bar height and timing are re-established after replacement, referring to your machine's service manual.

Parts involved: Needles & needle bars → Head & mechanical parts →

6. Tajima 050320850S21 Connecting Rod Scissors Drive Shaft Assembly low likelihood

How to tell

Malfunctioning or inconsistent scissor trimming action, grinding noises from the trimmer drive, complete failure of the trimmer mechanism, excessive play or looseness in the scissors drive linkage.

Fix

1. Power off the machine and carefully inspect the scissors drive mechanism, particularly the connecting rod and shaft assembly.
2. Look for bent, broken, or excessively worn components within the Tajima 050320850S21 Connecting Rod Scissors Drive Shaft Assembly.
3. If damage is confirmed, the entire assembly may need replacement. This is a more involved repair, often requiring careful disassembly and reassembly of the trimmer drive system.
4. Ensure all linkages are properly connected and lubricated after replacement, and verify trimmer function.

This is a critical assembly for the trimmer function. Replacement requires careful attention to timing and alignment.

Parts involved: Shafts, bearings & bushings → Cutters & trimmers → Head & mechanical parts →

7. Tajima Potentiometer 640900010001 640900010000 PB000100RV00 low likelihood

How to tell

Inconsistent or erratic machine speed control, machine starting or stopping unexpectedly, speed control knob not responding accurately, error codes related to motor speed or control.

Fix

1. Power off and unplug the machine. Locate the potentiometer, typically associated with the speed control knob or main control panel.
2. Inspect the potentiometer for physical damage, loose wiring, or corrosion.
3. Test the potentiometer with a multimeter for smooth resistance changes as it's turned. Erratic readings indicate failure.
4. If faulty, carefully disconnect and replace with a new Tajima Potentiometer 640900010001 640900010000 PB000100RV00. Ensure all connections are secure.

This part controls machine speed. A faulty potentiometer can lead to unpredictable operation.

Parts involved: Sensors & switches → Circuit boards & electronics → Control panels & displays →