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General| Brand | Pfaff |
|---|---|
| Model | 939 U |
| Category | Sewing Machine |
| Language | English |
Compliance with European regulations and general legal requirements.
Essential safety guidelines for machine operation and maintenance.
Explanation of danger and caution symbols used in the manual.
User responsibilities and manual availability for safe operation.
Specific safety instructions for operational and technical personnel.
Warnings about workplace hazards and potential injuries.
Information on how machines are delivered to customers.
Manufacturer's liability disclaimer for internal machine transport.
Customer responsibility for disposing of packing materials.
Guidelines for storing the machine when not in use.
Operation of the main power switch for controlling the machine.
Operation of keys on the machine head for specific functions.
Control functions of the foot pedal for the PFAFF 939 U model.
Control functions of the foot pedal for the PFAFF 3704-2/.. model.
How to use the lever to raise the presser foot.
Operation of the knee lever for lifting the presser foot.
Adjusting zigzag stitch width and needle position.
Function and operation of the reverse feed key.
How to adjust the stitch length using the wheel.
Adjusting the top feed settings on the PFAFF 939 U.
Adjusting the differential feed mechanism on the PFAFF 3704-2/..
Adjusting multi-stitch and zigzag stitch settings.
Operation of the mechanical edge guide for the PFAFF 3704-2/02.
Function and use of the knee switch for differential feed.
Explanation of the control panel's displays and function keys.
Site requirements and initial setup procedures for the machine.
Steps for fitting the Quick-flange motor on PFAFF 939 U.
Attaching the belt guard for the Quick flange motor.
Specifications for the table top cutout for PFAFF 939 U.
Instructions for assembling the machine's table top.
Connecting plug-in components and earth cables for safety.
Final checks and preparations before operating the machine.
How to switch the machine on and off.
Initial configuration of the machine's motor drive unit.
Mounting and connecting the start inhibitor for safety.
Correct procedure for inserting a sewing needle.
Winding the bobbin thread and setting initial tension.
Procedures for removing and inserting the bobbin case.
Threading the bobbin case and adjusting its tension.
Setting up and adjusting needle thread tension for specific models.
Setting up and adjusting needle thread tension for PFAFF 3704-2/02.
Setting the zigzag stitch width and needle position.
Adjusting the length of the stitches.
Adjusting the differential feed mechanism on the PFAFF 939 U.
Adjusting the differential feed mechanism on the PFAFF 3704-2/..
Switching between multi-stitch and zigzag stitch modes.
Programming start/end backtacks and condensed stitches.
Instructions for using the darning program function.
Instructions for using the counted seam function.
Understanding and resolving error codes displayed on the machine.
A visual example of a specific seam type on the PFAFF 3704-2/02.
Step-by-step guide for cleaning the sewing machine.
Proper lubrication of the hook mechanism for optimal performance.
How to oil the zigzag drive system.
Cleaning the air filter of the air-filter/lubricator unit.
Verifying and adjusting the machine's air pressure.
Important guidelines and safety precautions for performing adjustments.
A list of tools and gauges required for machine adjustments.
Definitions for technical abbreviations used in the manual.
How to use the check and adjustment aid for precise settings.
Core procedures for setting up the machine's basic functions.
Adjusting the thread trimmer mechanism.
Configuring various machine parameters.
Understanding and interpreting machine error codes.
Procedures for resetting parameters or performing a cold start.
Instructions for updating the machine's software via the internet.
A list referencing various circuit diagrams and their components.
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