14

Clearance between presser foot and needle plate

Requirement

With presser bar lifter 1 raised there must be a clearance of 5 mm between presser foot and needle plate.

Note: When the presser foot is raised to its top position upon actuating the knee lever fully or by means of the automatic presser foot lift -910/.. there must not be any contact between presser foot bush 6 and presser foot.

 

2

 

4

3

 

 

5

1

6

 

10 mm

 

5 mm

Lower presser bar lifter 1 to rest the presser foot on the needle plate.

Turn out regulating screw 2 to lower the pressure on the presser bar.

Place the 5-mm-thick blade of the gauge under the presser foot fulcrum.

Loosen screw 3 and raise presser bar lifter 1.

Let the needle penetrate the needle hole of the presser foot and adjust the presser foot so that the needle is centered in the needle hole of the presser foot.

Press lifting bracket 4 downwards onto the raised lifting lever 5 and tighten screw 3.

Remove the gauge and lower the presser foot onto the needle plate.

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Pfaff 483, 481 service manual Clearance between presser foot and needle plate

481, 483 specifications

The Pfaff 481 and 483 are renowned industrial sewing machines celebrated for their robust construction and advanced features tailored for heavy-duty sewing applications. These models are particularly favored in industries dealing with leather, canvas, and other heavy materials, making them ideal for manufacturing products like bags, belts, and upholstery.

Both the Pfaff 481 and 483 share a powerful sewing mechanism that operates at high speeds, enhancing productivity in industrial settings. They are equipped with a walking foot system that ensures even feeding of multiple layers of thick materials, significantly reducing the risk of puckering or uneven stitches. This feature is essential when dealing with bulky fabrics, as it allows for consistent stitching quality across varying thicknesses.

One of the main characteristics of these models is their superior stitch quality. The Pfaff 481 and 483 utilize a high-quality needle bar that delivers precise needle penetration and minimizes thread breakage. Their stitch length can be easily adjusted, allowing for versatile applications from heavy tacking to delicate decorative stitches. Additionally, these machines support various stitch styles, including straight, zigzag, and overlock stitches, providing versatility for diverse sewing projects.

In terms of technology, the Pfaff 481 and 483 incorporate a clutch motor that delivers reliable power without compromising on performance. This motor is designed to handle heavy workloads, making the machines suitable for continuous use in demanding environments. The user-friendly interface and easy-to-navigate controls ensure that operators can quickly adjust settings according to their specific needs.

Moreover, both models are built with durability in mind. The heavy-duty metal framework provides stability during operation, which contributes to the longevity of the machines. Maintenance is also straightforward, with easily accessible parts that promote efficiency when servicing or replacing components.

In conclusion, the Pfaff 481 and 483 are exemplary industrial sewing machines known for their durability, advanced features, and high-quality performance. Their ability to handle tough materials and diverse sewing techniques makes them invaluable tools for professionals in the textile and manufacturing industries. Whether for leather work or heavy fabrics, these models deliver reliable results, ensuring that users can achieve their desired outcomes with ease and precision.