10Needle rise, final adjustment of needle bar height and bobbin case positioning finger

Requirement

With the stitch length set at “0” and the needle bar at a position 1.8 mm past b.d.c. (cylindrical pin in hole “4”)

1.the hook point must be opposite the center line of the needle and the top edge of the needle eye must be 0.8 mm below the bottom edge of the sewing hook.

2.there must be a clearance of 0.5 mm between the lug of positioning finger 3 and the inside edge of the positioning slot.

4

0,8 mm

2

3

0,5 mm

1

Adjust the hook (screws 1) without shifting it and the needle bar (screws 2) without turning it according to requirement 1.

Set lug of positioning finger 3 into the slot in the bobbin case base; adjust and fix it according to requirement 2.

PFAFF 15

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Pfaff 483, 481 service manual Pfaff

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.