Husqvarna Huskylock 700 sewing machine handbook

Husqvarna HUSKYLOCK MODEL 700 Handbook - 1995 Edition

This original operators handbook provides essential guidance for the calibration and maintenance of the HUSKYLOCK 700 series, ensuring professional-grade seam quality. Precise adjustment of the differential feed mechanism is critical to prevent fabric puckering or stretching, maintaining structural integrity across diverse textile densities. Regular application of high-grade machine oil to the specified internal pivot points is mandatory every 10 to 20 hours of operation to minimize mechanical friction and ensure system longevity.

Technical Applicability & System Configurations

HUSKYLOCK MODEL 700 Series (Standard & Differential Feed)

• Husqvarna HUSKYLOCK MODEL 700 (1995)
• Husqvarna HUSKYLOCK MODEL 700 B (1995)
• Husqvarna HUSKYLOCK MODEL 700 A (1995)

Chassis Configuration: Compact Overlock

• 4-Thread Integrated Overlock
• 3-Thread Wide/Narrow Overlock
• 2-Thread Conversion (Optional)

Operational Advantages & Precision Accuracy

• Mechanical efficiency is maximized through a high-speed motor rated at 1,500 stitches per minute, significantly reducing production time compared to standard units.
• Versatile seam architecture is supported by a differential feed ratio adjustable from 0.7 to 2.0, allowing for precision handling of both ultra-fine georgette and heavy denim.
• Component protection is prioritized via the integrated cutter guard and safety interlock front cover, preventing accidental contact during high-speed operation.

Document Metadata

• Classification: Operators Handbook / User Instruction Manual
• Document Number: 126736001 (Parts Code Reference)
• Total Page Count: 60 Pages
• Language: English / Spanish (Bilingual Original)

Technical Depth & Factory Benchmarks

Mechanical synchronization requires strict adherence to the following factory specifications to maintain the integrity of the overlock stitch. The needle bar must be positioned at its highest point for all threading and needle replacement procedures to ensure correct loop timing.

• Operating Velocity: 1,500 stitches per minute (Nominal).
• Needle System: SCHMETZ 130/705H (Sizes #70/10 to #90/14).
• Standard Stitch Width: 5.0 mm (Factory Preset).
• Adjustable Stitch Width Range: 5.0 mm to 6.0 mm.
• Stitch Length Range: 2.0 mm to 4.0 mm.
• Differential Feed Ratio: 0.7 (Stretching) to 2.0 (Gathering).

Visual Navigation Aids & Component Identification

The manual utilizes detailed isometric diagrams and color-coded threading paths (Green, Blue, Red, Orange) to facilitate rapid system setup. Diagnostic charts correlate fabric types with specific tension settings and needle sizes, providing a systematic approach to troubleshooting stitch irregularities.

Table of Contents

• Chapter 1: Names of Parts and Their Functions
• Chapter 2: Operating & Powering the Machine
• Chapter 3: Stitch Length & Stitch Width Adjustment
• Chapter 4: Differential Feed Mechanism Instructions
• Chapter 5: Threading Sequences (Loopers and Needles)
• Chapter 6: Two-thread Overlock Conversion
• Chapter 7: Material, Thread, and Needle Comparison Chart
• Chapter 8: Thread Tension Control
• Chapter 11: Operational Guidelines (Heavy vs. Fine Materials)
• Chapter 12: Technical Troubleshooting Guide
• Chapter 13: Stitch Selection & Rolled Edge Execution
• Chapter 16: Cutter Maintenance & Replacement
• Chapter 17: Lubrication Intervals and Oiling Points
• Chapter 19: Machine Specifications

Operational Limits & Maintenance Specifications

Maintenance protocols dictate the use of specific components and lubricants to prevent premature wear of the sintered, oil-impregnated motor bearings.

• Lubrication: Apply 1-2 drops of high-quality sewing machine oil to designated points once or twice monthly for normal use; weekly for high-frequency operation.
• Cutter Alignment: Maintain a clearance of 0.5 mm to 1.0 mm between the upper and lower blades to ensure clean fabric shearing.
• Electrical Requirements: 15W light bulb maximum; foot controllers vary by region (e.g., J01590051 for 220/240V).
• Torque/Fixation: Needle set screws must be tightened securely using the provided 1.5mm hexagonal wrench to prevent needle deflection.