Necchi Cobbler Sewing Machine Manual

The Necchi Cobbler Sewing Machine is a professional-grade leather and heavy-duty sewing machine designed for cobblers, leatherworkers, and upholsterers. It features a heavy-duty frame, industrial-strength motor, specialized leather needles, adjustable stitch length, reverse stitching capability, built-in thread cutter, adjustable presser foot pressure, and multiple feed dog options. Below are key sections for safety, features, setup, operation, maintenance, and troubleshooting.

Features at a Glance

Key components: Heavy-duty steel frame, Industrial motor, Leather sewing needles, Adjustable stitch length, Reverse stitch lever, Built-in thread cutter, Adjustable presser foot, Feed dog system.

Installation & Setup

Unpack and inspect contents. Place on stable work surface.

1. Assemble frame: Secure machine to work table using provided bolts.
2. Install motor: Connect motor to machine head and secure mounting brackets.
3. Thread setup: Install thread spool pin and guide threads through tension discs.
4. Power connection: Plug into appropriate power outlet (check voltage requirements).
5. Needle installation: Insert appropriate needle type and tighten securely.

WARNING! Machine is heavy; use proper lifting techniques. Ensure all connections are secure before operation.

First-Time Operation

Power on machine; test basic functions.

1. Thread machine: Follow threading diagram for upper and lower threads.
2. Insert bobbin: Place bobbin in case and thread through tension spring.
3. Test stitch: Use scrap material to test stitch quality and tension.
4. Adjust tension: Fine-tune upper and lower thread tension for balanced stitches.
5. Set stitch length: Adjust based on material thickness and project requirements.

CAUTION! Keep fingers away from needle area during operation. Always use foot pedal control.

Specifications

• Machine Type: Industrial leather sewing machine
• Stitch Type: Lockstitch
• Stitch Length: 1-6mm adjustable
• Maximum Speed: 1500 stitches per minute
• Needle System: 135x5 leather needles
• Throat Space: 8 inches
• Motor: 550W industrial servo motor
• Power Requirements: 110V/220V, 50/60Hz
• Weight: 85 lbs (38.5 kg)
• Dimensions: 24" x 15" x 18"

Controls and Settings

Main controls: Power switch, Speed control dial, Stitch length adjuster, Reverse stitch lever, Thread tension dials.

Adjustments: Upper thread tension, Bobbin tension, Presser foot pressure, Feed dog height, Needle position.

Stitch Settings: Straight stitch only (lockstitch), Variable length control, Reverse stitching for reinforcement. Tension: Upper thread tension dial, Bobbin case tension screw. Maintenance: Oil points marked in red, Cleaning access points, Needle replacement procedure.

Threading the Machine

Proper threading is essential for optimal performance.

1. Upper threading: Place spool on pin, follow numbered guides to tension assembly.
2. Thread tension: Pass thread between tension discs and through take-up lever.
3. Needle threading: Thread needle from front to back, leave 4-inch tail.
4. Bobbin threading: Wind bobbin evenly, insert into case with thread flowing clockwise.
5. Test threading: Pull both threads under presser foot before beginning to sew.

Tip: Always raise presser foot when threading to release tension discs.

Sewing Techniques

Specialized techniques for leather and heavy materials.

1. Leather sewing: Use specialized leather needles and heavy-duty thread.
2. Seam starting: Use reverse stitch to lock beginning of seams.
3. Thick materials: Adjust presser foot pressure for smooth feeding.
4. Multiple layers: Use slower speed and appropriate needle size.
5. Curved seams: Guide material gently without pulling or pushing.
6. Stitch length: Use longer stitches for thicker materials.
7. Thread tension: Adjust for different thread types and material thickness.
8. Needle changing: Replace needles regularly for clean stitches.

WARNING! Always use appropriate needles for materials. Never force material through machine.

Maintenance & Cleaning

Regular maintenance ensures optimal performance and longevity.

1. Daily cleaning: Remove lint and dust from bobbin area and feed dogs.
2. Weekly oiling: Apply sewing machine oil to designated oil points.
3. Monthly inspection: Check belt tension, motor mounts, and electrical connections.
4. Needle replacement: Change needles after 8-10 hours of sewing time.
5. Professional service: Schedule annual professional maintenance.

CAUTION! Unplug machine before cleaning or maintenance. Use only recommended oils.

Accessories

Standard accessories included: Assorted leather needles, Bobbins (5), Screwdrivers, Oil bottle, Brush, Foot pedal, Power cord.

Optional accessories: Walking foot, Zipper foot, Edge guide, Thread stand, Different presser feet, Carrying case.

Regulatory Information

CE certified: Complies with European safety standards. UL listed: Meets US electrical safety requirements. Copyright © 2024 Necchi Sewing Machines; trademarks of Necchi Corporation. For technical support, visit www.necchi.com or contact 1-800-555-NECCHI. Serial number located on machine bed.

Troubleshooting

Reset: Turn power off and restart if electronic issues occur.

Service: 1-800-555-NECCHI; www.necchi.com