Contents

1 About these instructions
1.1 For whom are these instructions intended?
1.2 Representation conventions symbols and characters
1.3 Other documents
1.4 Liability
2 Safety
2.1 Basic safety instructions
2.2 Signal words and symbols used in warnings
3 Working basis
3.1 Order of the adjustments
3.2 Laying the cable guide
3.3 Removing the covers
3.3.1 Access to the underside of the machine
3.3.2 Removing and placing the arm cover
3.3.3 Removing and placing the head cover
3.3.4 Disassembling and assembling the throat plate
3.3.5 Disassembling and assembling the slide plate
3.3.6 Disassembling and assembling the feed dog
3.4 Flats on shafts
3.5 Locking the machine in place
4 Zigzag stitch mechanism of machines 523, 524, 527
4.1 Tooth clearance setting of zigzag stitch gear
4.2 Timing of zigzag stitch to needle motion
4.3 Straight stitch alignment
4.4 Zigzag stitch width
4.5 Needle stab position setting in feeding direction
4.6 Lateral setting of needle stab position
4.7 Lateral setting of central straight stitch position
4.8 Lateral setting of straight stitches on throat plate needle hole edges, arresting of zigzag stitch setting mechanism
5 Form stitch mechanism of machine 525
5.1 Tooth clearance setting of form stitch gear
5.2 Roller bolt position of form stitch steering cam
5.3 Setting of needle stab position
5.4 Timing of form stitch steering cam to needle motion
6 Feeding and presser foot
6.1 Stitch length setting mechanism
6.2 Zero stitch length
6.3 Feed dog position in throat plate recess and its height
6.4 Timing of feed dog motion eccentric
6.5 Backtacking with solenoid
6.6 Manual foot lifting
6.7 Foot lifting with knee lever
6.8 Foot lifting with solenoid
7 Needle bar and hook
7.1 Needle bar height, needle and hook point clearance
7.2 Bobbin case driver
7.3 Hook lifting
8 Thread mechanism
8.1 Thread limiter and check spring
8.2 Bobbin winder
9 Thread trimming
9.1 Trimming pressure between knives
9.2 Trimming lever
9.3 Driver
9.4 Trimming cam
10 Puller
10.1 Synchronous operation of bottom feed and puller
10.2 Distance from puller to needle
10.3 Puller lifting
10.4 Toothed belt tensioning
10.5 Puller pressure
10.6 Feeding wheel replacement
10.7 Setting of cam torsion spring pressure on step length setting wheel screw
10.8 Disk brake pressure setting
11 Electronic control and sewing machine drive
12 Maintenance
12.1 Cleaning
12.2 Lubricating
12.2.1 Lubricating the machine head
12.2.2 Hook lubrication
12.3 Parts list
13 Decommissioning
14 Disposal
15 Errors in the sewing process
16 Technical parameters

Dürkopp Adler 52Xi-75 Service Instructions

Dürkopp Adler 52Xi-75 Sewing Machine manual cover

Pages 86

Year 2022

Language(s)

of 86

Dürkopp Adler 52Xi-75 Sewing Machine Specification

The Dürkopp Adler 52Xi-75 Sewing Machine is a state-of-the-art industrial sewing machine designed for high-performance stitching applications. It features a robust construction that ensures durability and reliable operation in demanding environments. The machine is equipped with an advanced direct drive system, providing precise needle positioning and efficient power transmission, which significantly reduces energy consumption. The machine's sewing speed is adjustable up to 5,000 stitches per minute, allowing for both rapid production and meticulous control for intricate sewing tasks.

Incorporating a sophisticated electronic control panel, the 52Xi-75 offers intuitive operation with easy access to a wide range of stitch patterns and settings. The machine supports programmable stitching sequences, facilitating complex sewing projects with minimal manual intervention. Its automatic thread trimming and needle positioning functions enhance productivity by reducing downtime and ensuring consistent stitch quality. The machine is compatible with a variety of fabrics, from lightweight materials to heavy-duty textiles, thanks to its adjustable presser foot pressure and feed dog height.

The 52Xi-75's ergonomic design minimizes operator fatigue, featuring a user-friendly interface and adjustable workspace that suits different sewing requirements. It includes an integrated LED lighting system that provides optimal visibility, ensuring precision in every stitch. The machine's maintenance is streamlined with an easy-access oiling system and diagnostic capabilities that alert operators to potential issues before they affect performance. Overall, the Dürkopp Adler 52Xi-75 Sewing Machine offers a blend of innovation, efficiency, and reliability, making it an ideal choice for industrial sewing operations that demand high standards of quality and versatility.

Dürkopp Adler 52Xi-75 Sewing Machine F.A.Q.

How do I thread the Dürkopp Adler 52Xi-75 sewing machine correctly?

To thread the Dürkopp Adler 52Xi-75, follow the threading path indicated in the user manual. Start by placing the thread spool on the spool pin and then guide the thread through the thread guides, tension discs, and needle. Ensure the presser foot is up to disengage the tension discs during threading.

What should I do if the sewing machine is skipping stitches?

First, check if the needle is correctly installed and not bent or dull. Ensure you are using the correct needle size and type for the fabric. Also, verify that the thread is correctly threaded and that the tension is properly adjusted.

How can I maintain the Dürkopp Adler 52Xi-75 to ensure its longevity?

Regular maintenance includes cleaning the machine after each use, oiling as per the manufacturer's guidelines, and routinely checking for loose screws or parts. Schedule professional service at least once a year to maintain optimal performance.

What is the best way to troubleshoot a tension issue on this sewing machine?

Begin by rethreading the machine to ensure the thread is correctly seated in the tension discs. Adjust the tension settings starting with the recommended settings in the manual. Test on scrap fabric and fine-tune as needed.

Why does the thread keep breaking on my Dürkopp Adler 52Xi-75?

Thread breakage can be caused by incorrect threading, tension that is too tight, or a damaged needle. Ensure the thread path is correct, check the tension settings, and replace the needle if it appears damaged.

How do I change the needle on the Dürkopp Adler 52Xi-75?

To change the needle, first ensure the machine is turned off. Loosen the needle clamp screw and remove the old needle. Insert a new needle with the flat side facing the back, push it all the way up, and tighten the clamp screw securely.

What steps should I follow if the machine is making unusual noises?

Unusual noises may indicate a need for cleaning or oiling. Turn off the machine, remove the needle plate, and clean out any lint or debris. Apply oil as directed in the manual. If noise persists, consult a technician.

Can I use heavy-duty thread with the Dürkopp Adler 52Xi-75 sewing machine?

Yes, the machine can handle heavy-duty threads, but ensure you use the appropriate needle size and adjust the tension settings to accommodate the thicker thread for optimal stitching performance.

How do I adjust the stitch length on the Dürkopp Adler 52Xi-75?

To adjust the stitch length, locate the stitch length dial on the machine's panel. Turn the dial to the desired stitch length setting as indicated in the manual. Test on scrap fabric to ensure the correct length.

What should I do if the fabric is not feeding properly?

Check if the feed dogs are engaged and not lowered for free-motion sewing. Ensure the presser foot pressure is adequate for the fabric type. Clean under the feed dogs to remove any lint or debris that might obstruct feeding.