Tajima TMAR-V1512 Digitally Controlled Presser Foot Malfunctions: Troubleshooting Guide

1. Obstruction or Debris in Presser Foot Mechanism high likelihood

How to tell

The presser foot jams, sticks, fails to lift, or moves sluggishly. You may hear grinding or unusual noises.

Fix

1. Power off the machine and disconnect it from the power source.
2. Carefully inspect the entire presser foot assembly, including the lifting mechanism and surrounding area, for tangled threads, lint buildup, fabric scraps, or other foreign objects.
3. Use tweezers, a small brush, or compressed air to thoroughly clean out any obstructions.
4. Manually move the presser foot up and down to confirm free movement. If stiff, apply a small amount of machine oil to pivot points as per your machine's lubrication guide.

Regular cleaning prevents premature wear on mechanical components.

Parts involved: Lubrication & maintenance → Head & mechanical parts → Presser feet & sewing parts →

2. Incorrect Control Panel Settings high likelihood

How to tell

Presser foot does not adjust correctly for fabric thickness, applies uneven pressure, or struggles with delicate fabrics. Error codes related to adjustment may appear.

Fix

1. Navigate to the presser foot settings menu on the Tajima TMAR-V1512 control panel.
2. Verify that the 'Fabric Thickness' or 'Material Height' setting is correctly entered for the material you are using.
3. Check the 'Presser Foot Pressure' setting. For delicate fabrics, try reducing the pressure. For thicker materials, ensure adequate pressure is set.
4. If an automatic lift function is desired at the end of a design, ensure it is enabled in the machine settings.
5. Save any changes and test with a sample fabric.

Parts involved: Control panels & displays →

3. Presser Foot Calibration Required medium likelihood

How to tell

Uneven pressure on fabric, distorted designs, skipped stitches, or the presser foot not adjusting to fabric thickness as expected, even after checking settings.

Fix

1. Access the machine's diagnostics or calibration menu via the control panel. Refer to your Tajima TMAR-V1512 operator's manual for the exact procedure to enter this mode.
2. Locate the 'Presser Foot Calibration' or 'Height Adjustment' function.
3. Follow the on-screen prompts to recalibrate the presser foot. This typically involves setting a reference height or pressure.
4. After calibration, exit the diagnostics mode and test the presser foot function with various fabric thicknesses.

Parts involved: Control panels & displays → Head & mechanical parts →

4. Loose or Worn Mechanical Components medium likelihood

How to tell

Excessive noise during operation, irregular fabric feeding, uneven pressure, or the presser foot feeling 'loose' or wobbly. Visible wear on parts.

Fix

1. Power off the machine and disconnect it from the power source.
2. Carefully inspect the presser foot assembly, including mounting screws, linkages, and pivot points.
3. Tighten any loose screws using appropriate hand tools. Do not overtighten.
4. Look for signs of wear, such as excessive play in joints, bent levers, or worn springs. Replace any visibly damaged or worn components.
5. Ensure all parts are properly aligned and move smoothly without binding.

Parts involved: Head & mechanical parts → Presser feet & sewing parts → Screws, springs & small parts → Shafts, bearings & bushings →

5. Faulty Presser Foot Sensor low likelihood

How to tell

Presser foot fails to adjust automatically, delayed response to speed changes, or persistent 'Presser Foot Not Found' or 'Adjustment Error' codes even after cleaning and calibration.

Fix

1. Power off the machine and disconnect it from the power source.
2. Locate the presser foot sensor(s). These are typically optical or proximity sensors near the presser foot mechanism.
3. Gently clean the sensor lens or surface with a soft, lint-free cloth and isopropyl alcohol to remove any dust or residue.
4. If cleaning and recalibration (as per 'Presser Foot Calibration Required' cause) do not resolve the issue, the sensor may be faulty.
5. A faulty sensor requires replacement. Consult your machine's parts diagram to identify the correct sensor part number and replace it carefully, ensuring correct wiring and mounting.

Parts involved: Sensors & switches → Cables & wiring →

6. Outdated Firmware or Software Glitch low likelihood

How to tell

Intermittent or inexplicable presser foot malfunctions, error codes without clear mechanical cause, or issues appearing after specific operations. Machine may behave erratically.

Fix

1. First, try restarting the machine to clear any temporary software glitches.
2. Check your machine's current firmware version via the control panel's system information menu.
3. Consult the Tajima support website or your dealer for the latest firmware updates for the TMAR-V1512 model.
4. If an update is available, follow the manufacturer's instructions precisely for firmware installation. This often involves using a USB drive.
5. Ensure the machine remains powered throughout the update process to prevent damage.

Parts involved: Circuit boards & electronics → Control panels & displays → Floppy, USB & memory →