This document is an instruction manual for the SINGER HD0400S overlock machine. The HD0400S is a 2, 3, or 4-thread heavy-duty overlock machine designed for household use, capable of sewing a wide range of fabrics from light (lawn) to heavy (denim). The manual provides comprehensive guidance on its operation, maintenance, and various stitching capabilities.
Function Description:
The SINGER HD0400S is an overlock (or serger) machine that trims, seams, and overcasts in one step, creating professional-looking finishes on garments and other sewing projects. It supports 2, 3, and 4-thread stitching, offering versatility for different fabric types and sewing needs. The machine is designed to handle both delicate and robust materials, making it suitable for a variety of household sewing tasks. Its heavy-duty construction ensures durability and consistent performance.
Important Technical Specifications:
- Thread Capability: 2, 3, or 4 threads.
- Stitch Types: The machine is capable of producing various stitch types, including:
- 2-thread wrapped edge overlock (3.5mm and 5.7mm widths)
- 2-thread standard rolled hem stitching (3.5mm and 5.7mm widths)
- 3-thread overlock (3.5mm and 5.7mm widths)
- 3-thread flatlock (3.5mm and 5.7mm widths)
- 3-thread wrapped edge overlock (3.5mm and 5.7mm widths)
- 4-thread ultra stretch mock safety stitch
- Needle Positions: The machine supports different needle positions to achieve various stitch widths, specifically 3.5mm and 5.7mm for many 2-thread and 3-thread overedge seams.
- Tension System: Features tension dials for each thread (Blue, Green, Orange, Yellow, and Upper Looper/Spreader), allowing for precise adjustment to suit different fabrics and thread types. Tension settings are suggested guides, with tighter tension achieved by turning dials to higher numbers.
- Foot Control: The machine must be used with a specific type of foot control: GTC/HKT 72C (for 220-240V) or GTE/HKT 7 (for 100-120V), manufactured by DANYANG GUOTI MOTOR & APPLIANCE CO., LTD/ZHEJIANG HUAXING ELECTRIC MOTOR CO.,LTD.
- Electrical Safety: Tested according to European norms, meeting requirements for electrical safety, radio interference, and electromagnetic immunity, documented with the CE mark.
- Motor: The manual advises ensuring the electrical voltage of the outlet matches the rated voltage of the motor.
Usage Features:
- Versatile Stitch Selection: The HD0400S offers a wide range of stitches, detailed in a "Handy Reference Chart," which includes suggested tension settings for various stitch types on medium-weight fabric with standard #80 polyester spun thread.
- Needle Information: Provides guidance on selecting and using the correct needles for optimal performance.
- Threading: Detailed instructions and diagrams are provided for threading the machine, including specific steps for the upper looper (Orange), lower looper (Yellow), right needle (Green), and left needle (Blue). A color-coded system aids in correct threading.
- Stitch Length Adjustment: The machine allows for adjustment of stitch length, enabling customization for different fabric types and desired stitch appearances.
- Seam Width Adjustment: Seam width can be adjusted by changing needle position or by using an adjustment knob, offering flexibility for various overedge and rolled hem applications.
- Presser Foot Pressure Adjustment: The ability to adjust presser foot pressure helps in handling different fabric thicknesses and types smoothly.
- Differential Feed: This feature allows for precise control over fabric feeding, crucial for preventing stretching or puckering on knit fabrics and for creating gathering effects. It includes settings for "Gathered overedge" and "Stretch overedge."
- Movable Upper Knife: The upper knife can be disengaged, which is useful for certain stitching techniques where fabric trimming is not desired.
- Spreader Conversion: The upper looper can be converted into a spreader for specific stitch types.
- Free Arm Sewing: The machine supports free arm sewing, making it easier to work on tubular items like cuffs and sleeves.
- Starting and Ending Seams: Instructions are provided for properly starting and ending seams to ensure secure and neat finishes.
- Stitch Variations and Sewing Techniques: The manual covers advanced techniques such as sewing flatlock decorative seams, overlock blind hems, pin tucks, turning square corners, pin placement, securing the thread chain, reinforcing seams, and braiding by chaining off.
Maintenance Features:
- Cleaning: Instructions for regular cleaning of the machine to ensure smooth operation and longevity.
- Oiling: Guidance on proper oiling procedures to maintain the machine's mechanical parts.
- Stationary Knife Replacement: Instructions for replacing the stationary knife, a common wear-and-tear component.
- Troubleshooting Chart: A dedicated section to help users diagnose and resolve common issues.
- Safety Instructions: Emphasizes important safety precautions, including unplugging the machine before cleaning or servicing, keeping fingers away from moving parts, and using only recommended attachments. It also warns against operating the machine with damaged cords or if it's not working properly.
- Authorized Service: Advises that servicing should be performed by an authorized service representative and to contact a Service Center for motor belt adjustments or if the light is damaged.
- Disposal Information: Provides guidance on the correct disposal of the product in accordance with European Union regulations, promoting responsible recycling.
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