TSC-461 - Sewing machine JUKI - Free user manual and instructions
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| Product Type | Coverstitch Sewing Machine |
| Brand | Juki |
| Model | TSC-461 |
| Application | Hemming and seam finishing for knit fabrics |
| Maximum Stitch Speed | 4000 stitches per minute |
| Number of Needles | 2 (twin needle) |
| Number of Threads | 3 or 4 (coverstitch) |
| Stitch Length | 1.0 – 4.0 mm (adjustable) |
| Needle System | UY128GAS (or equivalent) |
| Needle Size | Nm 90–100 (standard) |
| Presser Foot Lift | Manual (up to 7 mm) |
| Differential Feed | Yes (0.7 – 2.0 ratio) |
| Thread Trimming | Automatic thread trimmer |
| Power Consumption | 250 W (sewing motor) |
| Power Supply | 220-240 V AC, 50/60 Hz |
| Dimensions (Width x Depth x Height) | 500 x 400 x 400 mm (approx.) |
| Weight | 25 kg (approx.) |
| Table Included | No (industrial stand required) |
| Lubrication | Automatic oiling system |
| Safety Features | Safety clutch, finger guard |
| Maintenance | Clean hook area and oil wick regularly |
| Repairability | Replaceable parts available; authorized service centers |
Frequently Asked Questions - TSC-461 JUKI
How do I thread the Juki TSC-461?
Refer to the threading diagram on the machine. Start by placing thread cones on the stand, then follow the numbered thread path through tension discs, take-up lever, and needles. Ensure threads are properly seated in the tension discs.
What needle type does the TSC-461 use?
The TSC-461 uses UY128GAS needles, typically size Nm 90-100 for medium-weight knits.
How to adjust tension on the coverstitch machine?
Turn the tension knobs for each thread: higher numbers increase tension. For balanced stitches, start with all tensions at mid-range and adjust as needed for fabric thickness.
Why is my machine skipping stitches?
Common causes: wrong needle size/type, dull needle, improper threading, or incorrect tension. Replace needle and rethread; also check that the needle is fully inserted and not bent.
How to clean and maintain the TSC-461?
Turn off and unplug. Remove the needle plate and clean lint from feed dogs and hook area with a brush. Oil wicks automatically lubricate; check oil level in reservoir. Regular cleaning prevents thread jams.
Can I sew denim with the TSC-461?
The TSC-461 is designed for knit fabrics. For heavy denim, it may struggle; use a heavier machine like a lockstitch for thick layers. Light denim might work with proper needle and settings.
How to replace the needles?
Turn off machine. Loosen the needle clamp screw with the provided hex wrench, remove old needles, insert new ones with the flat side facing back, and tighten. Ensure both needles are inserted to the same height.
What does the differential feed do?
Differential feed controls the stretch of fabric as it sews. Adjust the ratio to prevent puckering or stretching: increase ratio for gathering, decrease for stretching.
Why is the thread breaking?
Check for burrs on needle or hook, incorrect tension, or improper threading. Also ensure the thread is suitable for the machine (e.g., Tex 27-35 for coverstitch). Reduce speed if needed.
Where can I find replacement parts?
Contact authorized Juki dealers or check the spare parts list in the manual. Common parts like needles, presser feet, and tension discs are widely available online.
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USER MANUAL TSC-461 JUKI
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Product information
Brand : JUKI
Model : TSC-461
Category : Sewing machine