Husqvarna 400 / 500 Sewing Machine Service Manual

Shop manual for Husqvarna Model 400 and Model 500 sewing machines, detailing operation, maintenance, and troubleshooting. Includes diagrams and specifications for optimal performance. Part number: 412 39 91-45 E.

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Document Details

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Document Number / Seller:
25787 / Sharon Anderson
File Size:
8.81 MB
File Type:
PDF
Language:
English
Pages:
60
Printable:
Yes
Category:
Sewing Machine
Last updated / verified
Oct 12, 2025

Models Covered & Key Technical Specifications

Husqvarna 400/500 Sewing Machine Manual: Precision Setup, Maintenance & Troubleshooting Manual Model-Portfolio: Husqvarna 400 / 500 (412 39 91-45 E) // Equipment-Series: Sewing Machine / Computerized Logic // Model-Portfolio: Operation, Maintenance, and Repair Procedures.

  • Factory Operational Speed: 1100 stitches per minute establishes the maximum sewing throughput.
  • Certified Unit Dimensions: For optimal workspace, 47 cm x 22 cm defines the machine footprint.
  • Engineered Print Quality: 16 mm -- signifies the maximum stitch width capability.
  • Primary Tank Capacity: The internal mechanism requires no fluid reservoir for operation.
  • General Dimensional Tolerance: Standard sewing operations are maintained within +/- 0.5 mm parameters.
  • Integral Production Rate: The machine delivers up to 30 programmed stitches in its memory capacity.

Professional Workshop Service Manual & Technical Specifications

Enhanced Configuration Manual: Husqvarna 400 and 500 Sewing Machine Manual - Precision Setup, Maintenance & Troubleshooting Manual-Nexus

Model-Portfolio: Husqvarna 400 / 500 (412 39 91-45 E) // Equipment-Series: Sewing Machine / Computerized Logic // Model-Portfolio: Operation, Maintenance, and Repair Procedures.

Technical Specs Table Performance-Element Technical-Path Calibration-Standards
Stitch Length 0-6 mm +/- 0.5 mm
Stitch Width 0-6 mm +/- 0.5 mm
Reverse Sewing Speed Max. 3 mm N/A
Light Bulb Wattage 5 Watts N/A
Memory Capacity 30 stitches (Model 400) / 55 stitches (Model 500) N/A
Max. Sewing Speed 1100 SPM N/A

TOC Summary Block

  • Thread Tension Adjustment
  • Stitch Selection Guide
  • Programming and Memory Functions
  • Buttonhole and Button Sewing
  • Troubleshooting Common Issues

Analytically requiring proper setup and maintenance for optimal performance, this manual serves as a comprehensive guide. It details various sewing techniques, machine components, and operational procedures.

Installation Guidelines are provided for initial setup and connection.

This document outlines the initial setup procedures, including connecting the power supply and foot control, and installing accessories. It emphasizes the importance of understanding the machine's layout and basic functions before operation.

Maintenance Guidelines are included for routine care.

Regular cleaning and proper care are essential for the longevity and satisfactory operation of the sewing machine. Specific instructions are provided for cleaning the feed teeth, needle plate, and bobbin area. Advice is also given on changing the light bulb.

OEM Guidelines are included for specific stitch types.

Explores various stitch types, from basic straight stitches to decorative ones like zig-zag, overcasting, and monogramming. It provides guidance on selecting the appropriate stitch, needle, and presser foot for different fabrics and applications.

Transmission Service Information Covers advanced functions.

Covers advanced programming features, including creating custom stitch patterns, using memory functions, and editing existing programs. It explains how to mirror stitches and adjust stitch length and width for personalized results.

HVAC System Procedures are included for troubleshooting.

This section addresses common issues users might encounter, offering practical solutions and preventive measures. It covers problems like machine not feeding fabric, unattractive stitches, needle breakage, and motor malfunctions.

This manual documents torque specifications for ensuring proper flange face sealing. However, specific torque values are not provided in this prose section.

FAQ

What are the **specified** tool requirements for needle replacement? keyboard_arrow_down

A screwdriver is required for loosening the screw in the needle clamp when replacing the needle.

What are the **essential** electrical values for the machine? keyboard_arrow_down

The machine operates on standard household electrical supply; check the underside for specific voltage (V) and frequency (Hz) requirements relevant to your region.

Specify the **correct** calibration settings for thread tension. keyboard_arrow_down

For optimal results, begin with the recommended setting from the Info-display, typically number 4 for normal tension. For buttonholes and decorative stitches, use number 3. For topstitching on thick fabrics, increase tension to 7-9. Consult pages 51+ for detailed diagnostic charts and advanced tension adjustments.

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Reviews (3)

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I found the step-by-step guides extremely helpful. The download process was smooth and I received the link quickly. Excellent support!
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This manual is a lifesaver! It covers everything from setup to troubleshooting in a clear and concise manner. Highly recommend it for both newbies and experienced users!
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New
Love this guide! It made learning my new sewing machine so much easier. The customer support was very responsive when I had a question. Definitely worth it!