Duerkopp Adler 52Xi Operating Instruction

52Xi

Industrial sewing machine

Instruction manual

Betriebsanleitung

Postfach 17 03 51, D-33703 Bielefeld • Potsdamer Straße 190, D-33719 Bielefeld Telefon +49 (0) 521 / 9 25-00 • Telefax +49 (0) 521 / 9 25 24 35 • www.duerkopp-adler.com

Ausgabe / Edition: Aenderungsindex Teile-Nr./Part.-No.:

03/2010 Rev. index: 02.0 Printed in Czech Republic S735 000800

All rights reserved. Property of Dürkopp Adler AG and copyrighted. Reproduction or publication of the content in any manner, even in extracts, without prior written permission of Dürkopp Adler AG, is prohibited.

Eigentum der Dürkopp Adler AG und urheberrechtlich geschützt. Jede, auch auszugsweise Wiederverwendung dieser Inhalte ist ohne vorheriges schriftliches Einverständnis der Dürkopp Adler AG verboten.

Dürkopp Adler AG - 2010

Foreword

This instruction manual is intended to help the user to become familiar with the machine and take advantage of its application possibilities in accordance with the recommendations.

The instruction manual contains important information on how to operate the machine securely, properly and economically. Observation of the instructions eliminates danger, reduces costs for repair and down-times, and increases the reliability and life of the machine.

The instruction manual is intended to complement existing national accident prevention and environment protection regulations.

The instruction manual must always be available at the machine/sewing unit.

The instruction manual must be read and applied by any person that is authorized to work on the machine/sewing unit. This means:

– Operation, including equipping, troubleshooting during the work

cycle, removing of fabric waste,

– Service (maintenance, inspection, repair) and/or

– Transport.

The user also has to assure that only authorized personnel work on the machine.

The user is obliged to check the machine at least once per shift for apparent damages and to immediatly report any changes (including the performance in service), which impair the safety.

The user company must ensure that the machine is only operated in perfect working order.

Never remove or disable any safety devices.

If safety devices need to be removed for equipping, repairing or maintaining, the safety devices must be remounted directly after completion of the maintenance and repair work.

Unauthorized modification of the machine rules out liability of the manufacturer for damage resulting from this.

Observe all safety and danger recommendations on the machine/unit! The yellow-and-black striped surfaces designate permanend danger areas, eg danger of squashing, cutting, shearing or collision.

Besides the recommendations in this instruction manual also observe the general safety and accident prevention regulations!

General safety instructions

The non-observance of the following safety instructions can cause bodily injuries or damages to the machine.

1. The machine must only be commissioned in full knowledge of the

2. Before putting into service also read the safety rules and

3. The machine must be used only for the purpose intended. Use of

4. When gauge parts are exchanged (e.g. needle, presser foot, needle

5. Daily servicing work must be carried out only by appropriately

instruction book and operated by persons with appropriate training.

instructions of the motor supplier.

the machine without the safety devices is not permitted. Observe all the relevant safety regulations.

plate, feed dog and bobbin) when threading, when the workplace is left, and during service work, the machine must be disconnected from the mains by switching off the master switch or disconnecting the mains plug.

trained persons.

6. Repairs, conversion and special maintenance work must only be carried out by technicians or persons with appropriate training.

7. For service or repair work on pneumatic systems, disconnect the machine from the compressed air supply system (max. 7-10 bar). Before disconnecting, reduce the pressure of the maintenance unit. Exceptions to this are only adjustments and functions checks made by appropriately trained technicians.

8. Work on the electrical equipment must be carried out only by electricians or appropriately trained persons.

9. Work on parts and systems under electric current is not permitted, except as specified in regulations DIN VDE 0105.

10. Conversion or changes to the machine must be authorized by us

and made only in adherence to all safety regulations.

11. For repairs, only replacement parts approved by us must be used.

12. Commissioning of the sewing head is prohibited until such time as

the entire sewing unit is found to comply with EC directives.

13. The line cord should be equipped with a country-specific mains

plug. This work must be carried out by appropriately trained technicians (see paragraph 8).

It is absolutely necessary to respect the safety

instructions marked by these signs.

Danger of bodily injuries !

Please note also the general safety instructions.

Table of contents Page

Introduction and safety instructions

Part 1 - Instructions for use - 52Xi

1. Machine description ........................................... 5

2. Machine use ................................................. 5

3. Subclasses ................................................. 6

4. Sewing equipment ............................................. 7

5. Optional equipment ............................................ 9

6. Technical parameters ........................................... 11

7. Machine operation

7.1 Needle threading ............................................. 12

7.2 Hookthreadwinding ........................................... 13

7.3 Bobbin fixing and hook threading .................................... 14

7.4 Threadtensionadjustment ........................................ 15

7.4.1 Hookthreadtensionadjustment ..................................... 15

7.4.2 Needle thread tension adjustment .................................... 16

7.5 Needle replacement ............................................ 17

7.6 Footlifting .................................................. 18

7.7 Footpressuresetting............................................ 19

7.8 Stitch length setting ............................................ 19

7.9 Backtacking (reverse feeding; closing up) ............................... 20

7.10 Zig-zagstitchwidth(throw)andpositionsetting ........................... 21

7.11 Starting up of manually controlled machine with clutch motor ................... 22

7.12 Control of machine equipped with clutch positioning motor

and solenoid automatic control ...................................... 23

7.12.1 Control pedal ................................................ 23

7.12.2 Key control panel .............................................. 24

8. Efka DC1550/DA321G positioning motor ............................... 25

9. Sewing w ith machine equipped w ith positioning motor

9.1 Machineautomaticfunctions ....................................... 26

9.2 Example of machine control/operation ................................. 27

10. Maintenance

10.1 Cleaning and checking ........................................... 28

10.2 Lubrication .................................................. 29

For your notes:

1. Machine description

2. Machine use

A flatbed single-needle machine.

It sews a double-thread zig-zag lockstitch.

It has a bi-directional drop feed.

The machine is equipped with a horizontal hook.

Wick lubrication.

There is an automatic bobbin winder on the machine arm.

According to the selected class, the machine has a manual or

automatic control by solenoid including thread trimming device.

Subclass 523i

Stitching of laces, ribbons, and tacking of ready-made ladies underwear and ladies clothes. The sewn material must not be thicker than 4 mm when pressed down under the presser foot.

Subclass 524i

Stitching of undercollars in jacket neckholes. Stitching of top collars on the undercollar overhang. Stitching of lining collar in upper part of trousers. Seaming of edges and similar operations in ready-made overgarment when sewing woolen, cotton, synthetic, and mix materials. The sewn material must not be thicker than 4 mm when pressed down under the presser foot.

Subclass 525i

Ornamental(shape) stitching in ready-made overgarment and ladies underwear made of elastic materials. Ornamental stitching in textile footwear. The sewn material must not be thicker than 4 mm when pressed down under the presser foot.

Subclass 527i

Shoe sewing: stitching of quarters and linings, topstitching of tongues, sewing of home slippers, ornamental stitching. Joining of leather and textile materials in leather industry. The sewn leather must not be thicker than 4 mm; the sewn textile must not be thicker than 8 mm when pressed down under the presser foot.

Dry material only can be sewn which must not contain hard objects because the machine is not equipped with an eye guard. This machine can be installed and operated in dry and maintained premises only. If the machine is used in premises which are not dry and maintained, further measures may be needed which are to be discussed (see EN 60204-31:1999).

As an industrial sewing machine producer we suppose that an at least instructed operator will work with the machine so that the operator can be expected to know all usual conditions or their risks.

3. Subclasses

Class and subclass Needle Hook Foot Thread Backtacking

number lifting trimming (closing)

1 needle

523i 411001 X X X X X

523i 447001 X X X X X

524i 811001 X X X X X

524i 847001 X X X X X

525i 811001 X X X X X

525i 847001 X X X X X

527i 811001 X X X X X

527i 847001 X X X X X

small (standard)

large

with knee lever

with solenoid

without thread trimmer

with thread trimmer

with hand lever

with solenoid

4. Sewing equipment

E-Nr. E-No.

Abb.-Nr. Fig.No.

Für Unterklasse / For Subclass

Verwendungszweck / Use

523 E 069 523i 411001; 523i 447001

Sewing equipment, 3-lined feed dog, needle size Nm 80-110, stitch length max. 5 mm, throw width max. 6 mm, for light and medium weight material.

523 E 070 523i 411001; 523i 447001

Sewing equipment, 4-lined feed dog, needle size Nm 80-110, stitch length max. 5 mm, throw width max. 6 mm, for light and medium weight material.

Stehová deska Throat plate



Materiál-čís. /Material Nr.

Rozměr jehelního otvoru/Stitch hole size mm

Stehová deska/Throat plate

7,8 x 1,5

S080 811636

S080 811701

S791 124069 35

S791 124070 35

Zásuvná deka, levá/Slide, left

Podavač Feed dog

Zásuvná deska, pravá/Slide, right

Rozteč zubů/Tooth pitch mm

1,0

1,8



Pilové ozubení/Serrated mm

Pilové ozubení šikmé/Serrated, oblique mm

S080 651330

S080 651473

Křížové ozubení/Cross toothed mm

Oboustranné ozubení/Roof-shaped mm

Patka Foot

Kloubová kompenzační/Compensating hinged



Kloubová s drážkou zepředu/

Hinged with front thread slit

S980 031586

Kloubová s drážkou pro nit z boku/

Hinged with side thread slit

S980 031649



Kolečková patka/Roller presser

Vodič/Guide

Jehelník/ Needle holder

Systém jehly/ -rozměr / Needle system / -size

134/100

525 E 032 524i 811001; 524i 847001

525i 811001; 525i 847001 Sewing equipment, 4-lined feed dog, needle

size Nm 80-110, stitch length max. 5 mm, throw width max. 10 mm, for light and medium weight material.

525 E 033 524i 811001; 524i 847001

525i 811001; 525i 847001 Sewing equipment, 3-lined feed dog, needle

size Nm 80-110, stitch length max. 5 mm, throw width max. 10 mm, for light and medium weight material.

525 E 075 524i 811001; 524i 847001

525i 811001; 525i 847001 Sewing equipment, 4-lined feed dog, needle

size Nm 80-110, stitch length max. 5 mm, throw width max. 10 mm, for medium weight material.

527 E 023 525i 811001; 525i 847001

527i 811001; 527i 847001 Sewing equipment for sewing butt seams,

3-lined feed dog, needle size Nm 110-130, stitch length max. 5 mm, throw width max. 10 mm, for medium heavy weight material.

527 E 048 527i 811001; 527i 847001

Sewing equipment for two needle cordin seams with or without filler cord, 3-lined feed dog, needle size Nm 120-160, stitch length max. 5 mm, needle gauge 7 mm, for medium and heavy weight material.

11,6 x 1,2

S791 124032 35

11,8 x 1,5

S791 124033 35

11,6 x 1,5

S791 224075 35

11,8 x 1,7

S791 400023

9x2,5

S791 430048 35

S080 811641

S080 811637

S080 811699

S980 022282

S980 022840

1,0

1,8

1,5

1,8

S080 651504

S080 651336

S080 651472

S080 651428

S080 651499

S980 031603

S980 022839

134/80

134/110

134; 134-35/110

134-35/130

Note: Sewing equipment is illustrated in the spare parts list.

* Needles are not supplied.

Šicí vyb aven í

Stehová deska Throat plate

Podavač Feed dog



Patka Foot



E-Nr. E-No.

Abb.-Nr. Fig.No.

Für Unterklasse / For Subclass

Verwendungszweck / Use

527 E 060 527i 811001; 527i 847001

Sewing equipment for two needle cordin seams with or without filler cord, 3-lined feed dog, needle size Nm 110-130, stitch length max. 5 mm, needle gauge 4 mm, for medium heavy weight material.

527 E 061 527i 811001; 527i 847001

Sewing equipment for two needle cordin seams with or without filler cord, 3-lined feed dog, needle size Nm 110-130, stitch length max. 5 mm, needle gauge 5 mm, for medium heavy weight material.

527 E 461 527i 811001; 527i 847001

Sewing equipment, 3-lined feed dog, needle size Nm 100-130, stitch length max. 5 mm, throw width max. 10 mm, for light weight material.

Materiál-čís. /Material Nr.

S791 430060 35

S791 430061 35

S791 124061 35

Rozměr jehelního otvoru/Stitch hole size mm

6x2,1

7x2,3

11,8 x 1,8



Stehová deska/Throat plate

Zásuvná deka, levá/Slide, left

S980 022867

S980 022868

S080 811634

Zásuvná deska, pravá/Slide, right

Rozteč zubů/Tooth pitch mm

1,8

Pilové ozubení/Serrated mm

Pilové ozubení šikmé/Serrated, oblique mm

Křížové ozubení/Cross toothed mm

S080 651509

S080 651510

S080 651428

Oboustranné ozubení/Roof-shaped mm

Kloubová kompenzační/Compensating hinged

Kloubová s drážkou zepředu/

Hinged with front thread slit

Kloubová s drážkou pro nit z boku/

Hinged with side thread slit

S980 031603



Kolečková patka/Roller presser

Vodič/Guide

S980 022839

Jehelník/ Needle holder

Systém jehly/ -rozměr / Needle system / -size

134-35/110

528 E 027 527i 811001; 527i 847001

Sewing equipment, 3-lined feed dog, needle size Nm 110-130, stitch length max. 5 mm, throw width max. 10 mm, for medium weight material.

525 E 028 527i 811001; 527i 847001

Sewing equipment, 3-lined feed dog, needle size Nm 120-160, stitch length max. 5 mm, throw width max. 10 mm, for heavy weight material.

Note: Sewing equipment is illustrated in the spare parts list.

* Needles are not supplied.

S791 124027 35

S791 124028 35

11,8 x 1,8

12,2 x 2,2

S080 811557

S080 811772

1,8

S080 651336

S980 031602

S980 031586

S080 271530

134-35/120

134-35/160

5. Optional equipment

Order number Optional equipment

S359 600030 Complete motor FIR 1148/552/3

S359 600057 Complete motorEFKA DC1550/DA321G

9800 330009 Control panel V810 (for EFKA motor)

9800 330010 Control panel V820 (for EFKA motor)

S080 836491 Control panel V810 or V820 bracket

S072 500100 Complete stand (including stand table top)

S615 000316 Table top (separate)

S981 069440 Knee lever for mechanical foot lifting

S794 222012 Lighting lamp Z 012

S980 035456 Gauge for class 52X

S980 000293 Unwinding device A-M 293

S980 000294 Unwinding device A-M 294

S980 000312 Edge hemming set A-M 312

S980 031586 Complete foot ZZ 6MM

S980 031652 Complete foot ZZ 10MM

S080 811768 Throat plate (for soft material sewing)

S791 235002 Unwinding device

S791 630003 Double needle sewing equipment

S980 008253 Hook R 253

S794 222013 Sewing lamp diode Z 013

Cams for shape sewing for subclass 525i

Commercial Order number Quantity Quantity sewing Pattern width Single-needle Double-needle

Marking sewing points/ points/pattern

1 cam turn

Stitch length

Max. machine

speed st/min

525 Z 037 S080 674219 12 - 4400 3800

525 Z 038 S080 674113 12 4 4,5 - 10 3800 3400

1-3

525 Z 039 S080 674114 12 12 4,5 - 10 3800 3400

1-3

525 Z 040 S080 674115 12 6 3,5 - 6 3800 3400

1,5-3

525 Z 041 S080 674116 12 12 4,5 - 10 3800 3800

1,5-5

Pattern

Max. machine

speed st/min

Pattern

525 Z 042 S080 674117 12 3 3,5 - 6 3800 3400

1,5-4

525 Z 043 S080 674118 12 4 4 - 6 3800 3400

1-3

525 Z 044 S080 674119 12 6 4 -10 3800 3400

1-3

525 Z 045 S080 674120 12 12 2 - 5 3800 3400

1,5-3

525 Z 046 S080 674121 12 12 2 - 5 3800 3400

1,5-3

525 Z 047 S080 674122 12 2 3,5 - 6 3800 3400

1-3

525 Z 048 S080 674123 12 12 4,5 - 10 3800 3400

1-3

525 Z 049 S080 674124 12 6 4,5 - 10 4400 3800

1-3

525 Z 050 S080 674125 12 4 2 - 6 3800 3400

1-3

525 Z 051 S080 674221 12 6 3,5 - 6 3800 3400

1,5-3

525 Z 052 S080 674226 12 2 2 - 4,5 3800 3400

1-3

525 Z 053 S080 674227 12 2 1 - 2,4 3800 3400

1-3

525 Z 054 S080 674228 12 2 1,5 - 4 3800 3400

1-3

525 Z 055 S080 674229 12 3 3,5 - 6 3800 3400

1,5-4

6. Technical parameters

Class and subclass

523i 411001 524i 811001 525i 811001 527i 811001 523i 447001 524i 847001 525i 847001 527i 847001

Zig-zag stitch max. width/mm 6 10 10 10

Maximum sewing speed according to for stitch length 6 mm 5000 4400 cams used 3400

Maximum sewing speed according to for stitch length 8 mm - 4000 cams used 2500

Maximum sewing speed according to for stitch length 10 mm - 3500 cams used 2000

Standard sewing speed * 3500 3500 3500 2000

Needle system 134 134 134 134-35; 134-35 LR

* The machine is set up to the standard sewing speed in the factory.

Stitch type double thread zig-zag lockstitch

Stitch length max. 5.5 mm

Foot lifting with hand lever 5 mm

Foot lifting with knee lever or solenoid 12 mm

Needle number see table of sewing equipment

Manually controlled subclass clutch motor 2800 rpm.

Solenoid-controlled subclass DC motor (AC servo)-positioning motor with reverse run after thread trimming

Sewing head weight 40 kg

FIR motor weight 18 kg

Efka DC1550 motor weight 10 kg

Stand weight 30 kg

Thread length after trimming max. 20 mm

Machine head clear workspace 265 x 120 mm

Machine table dimensions 178 x 476 mm

Input of machine with clutch motor max. 700 kW (short-time at start up)

Input of machine with DC motor max. 800 kW (short-time at start up)

Machine floor plan dimensions (including stand) 1060 x 550 mm

Machine height (including yarn stand) 1490 mm

Acoustic pressure equivalent level of a separate machine at workplace at 20 % machine utilization under standard sewing conditions in a shift 83 dB/A

7. Machine operation

7.1 Needle threading

Attention! Danger of injury!

Thread when the main switch is switched off and motor stopped!

–

Do the threading according to picture (A) and detail (B).

–

When trimming the material edges, do the threading according to picture (A) and detail(C).

7.2 Hook thread winding

–

Fix the bobbin (1) on the winder.

–

Do the threading according to picture (A), wind 5 times round the bobbin.

–

Insert the thread under cutter (2) and tear off by pulling in the arrow direction (3).

–

Pull the lever (4) in the arrow direction (5).

–

Start the machine up.

–

After the bobbin winding, wind the thread round the cutter (2) according to picture (B) and tear it off by pulling in the arrow direction (3).

–

Fix another bobbin immediately and prepare its winding during the sewing.

7.3 Bobbin fixing and hook threading

Attention! Danger of injury!

Switch the main switch off and wait for the motor stopping.

–

Tilt the flap (1), grip it and pull the bobbin case (2) out of the hook.

–

Put the bobbin (3) in the bobbin case with the thread end (4) oriented according to the picture (2).

–

Draw the thread end (4) through the slit (5), pull under the spring (6) and pull into the slit (7).

–

Insert the case (2) back in the hook and press it down in the arrow direction (8) till the lock inside the case clicks and secures it against falling out.

–

Make one stitch without the sewn material, and drawing the thread upper end, pull the hook thread end outwards above the throat plate.

7.4 Thread tension adjustment

7.4.1 Needle thread tension adjustment

Secondary tensioner adjustment (1) –

Adjust the secondary tensioner (1) so that it has as small tension as possible, but high enough so as the thread cannot be pulled out from the tensioner (1) at the material removing after previous trimming (when the tensioner (2) is opened - switched off). (The tensioner (1) is never switched off).

Main tensioner adjustment (2) –

Regulate the thread tension with the tensioner (2) until you achieve a good interlacing of the threads (see below).

Correct interlacing of threads in the center of the material

Increase of the needle thread tension (or reduce the hook needle tension)

Reduce the needle thread tension (or increase the hook thread tension)

7.4.2 Hook thread tension adjustment

732 7 8 461 5

ABC

Attention! Danger of injury!

Do adjustments when the main switch is switched off and motor stopped!

–

The hook thread tension depends on the adjustment of springs (1) and (2).

Tension spring (1) adjustment –

Remove the bobbin case (3) from the machine and insert a full-wound bobbin (4).

–

Do a complete

–

Regulate the spring (1) pressure with a screw (5) so that the thread

threading according to picture (B).

tension is in balance with the case and bobbin weight - when hung down on the thread end (6), the case is dropping slowly with its own weight.

Adjustment of bobbin brake spring at the thread trimming (2) –

Bobbin braking should be as small as possible because it causes difference of tensions of full and empty bobbin and subsequently of thread interlacing in the stitch (defective look of the seam).

–

Regulate the bobbin braking with a screw (7) and watch the bobbin unwinding after the thread trimming: remove the case (3) from the machine, grip it so that the bobbin cannot turn and pull out the thread end (8). At a correct adjustment, approx. 10 mm of thread will be pulled out of the case.

7.5 Needle replacement

13 2

Attention! Danger of injury!

Do the needle replacement when the main switch is switched off and motor stopped.

–

Loosen the screw (1) and remove the needle (2).

–

Fix a new needle and turn it so that the needle scarf (3) is oriented according to detail (D).

–

Tighten the screw (1).

7.6 Foot lifting

Foot lifting with a hand lever –

Lift the foot by pressing the lever (1) to a stop (foot remains lifted).

–

Lower the foot by returning the lever (1) to initial position or by pressing the knee lever (2) /if there is any/ and by its subsequent releasing or by the automatic foot lifting by means of the pedal and subsequent pedal releasing.

–

After the foot lifting by hand lever, the machine may be started up (e. g. when winding the hook thread).

Foot lifting with a knee lever (if there is any) –

The foot is lifted by pressing the lever (2); the foot is lowered by releasing the lever.

Automatic foot lifting - with solenoid - with pedal

(applies to subclasses with the positioning motor and automatic control)

–

Tread the pedal (3) in position -1 (see section 7.11). The foot is lifted.

–

Automatic foot lifting after trimming can be pre-selected (see section 7.11). The foot is lowered by the pedal (3) treading in position +1.

Attention!

At the foot lifting with the knee lever or automatically the machine must not run. There is a threat of destruction.

7.7 Foot pressure setting

–

Regulate the foot pressure by means of a screwdriver (1) which is supplied with the machine accessories.

–

The pressure increases by turning in the arrow direction and vice versa.

–

The foot pressure should be as small as possible, but strong enough so that the feeding is reliable even at a high sewing speed.

–

7.8 Stitch length setting

–

Turn the knob (1) so that the number (2) indicating the required stitch length in mm is opposite the screw (3).

7.9 Backtacking (reverse feed; closing up)

Backtacking with a hand lever(applies to manually controlled subclasses)

–

Press the lever (1) downwards. The machine will feed in the reverse direction until you release the lever.

Backtacking with a microswitch (applies to automatically controlled subclasses)

–

Press the microswitch (2). The machine will backtack until you release the grip.

Automatic backtacking (bar sewing, bartacking)

On machines equipped with the positioning motor and automatic control the automatic backtackingcanbepre-selectedwitha pre-selected number of reverse stitches both at the beginning and at the end of the seam. At the beginning of the seam (after previous thread trimming) after the pedal treading forwards the machine will sew the pre-selected bar and continue the sewing. At the end of the seam it will sew the pre-selected bar at the pedal treading in position -2 (see section 7.11).

7.10 Setting of zig-zag stitch width (throw) and position

Attention!

At setting the zig-zag stitch width (throw) and position the needle must not be inside the sewn material. There is a threat of the needle breaking!

Setting of zig-zag stitch width –

Press the lever (1) in the arrow direction (A) until it strikes the lever (2)

- the lever arrest is released (2). Grip both levers at the same time and set the zig-zag stitch width by turning the lever (2) against the selected number indicating the stitch width.

–

Arrest the lever (2) position by turning the lever (1) against the arrow direction (A).

Setting of zig-zag stitch position –

Press the lever (1) in the arrow direction (A) until it strikes the lever (2)- the lever arrest is released (3). Make sure that the lever setting does not change at the arrest switching off (2).

–

Press the lever (3) and turn it at the same time up to the stop (inside the machine) against the respective symbol indicating the zig-zag stitch position. Only the middle position of the lever is arrested with a lock.

–

After the lever (3) setting, carry out arresting with the lever (1).

–

In picture (C) there are examples of setting the zig-zag stitch width and position from which it is visible that the zig-zag stitch width does not change at the position change.

7.11 Starting up of manually controlled machine with clutch motor

–

Start up the motor (1) with the switch (2) - the drive motor is running continuously.

–

Tread the pedal (3). The drive friction clutch switches in this way and the sewing machine starts running.

–

Regulate the sewing speed by pressure on the pedal (3). The friction clutch slip changes and thus also the machine speed changes in dependency on the pressure.

–

Release the pedal(3). The sewing machine will stop.

7.12 Control of machine equipped with positioning motor

and solenoid automatic control

7.12.1 Control pedal

-2

-1 0 1 2

The pedal position is scanned with a proximity switch which distinguishes 16 levels.

The meaning is in the table:

Pedal position Pedal motion Meaning

-2 Heel fully backwards Command for thread trimming (seam finish)

-1 Heel slightly backwards Command for foot lifting

0 Neutral position See note

1 Slightly forwards Command for foot lowering

2 Further forwards Sewing at minimum speed (1gear)

3 Further forwards Sewing - 2 speed gear

:::

13 Fully forwards Sewing at maximum speed (12 gear)

Note: The needle position can be pre-selected for the neutral position (needle down/up) as well as for the foot position (down/up) at the seam-stop (by putting the pedal in the neutral position), and for the foot position (down/up) after the seam finishing (by treading the pedal with heel fully backwards and putting the pedal in the neutral position).

7.12.2 Key control panel

Key Function

1 Hand backtacking

When the key is pressed at sewing, the sewn material is fed backwards.

2 Needle positioning in upper or bottom position

By the parameter F-242 (DA321) the key function can be defined: 1 = needle up/down 2 = needle up 3 = one stitch (factory setting is 1)

8. Efka DC1550/DA321G positioning motor

DA321G control contains all needed control elements for a function switchover and parameter setting.The operation is possible without the control panel, the sewing programming is not enabled.

To the machine control also control panels V810 and V820 can be connected which are available as an attachment. By means of V820 control panel it is possible to program the sewing.

A detailed description of the control is included in the Instruction for Use supplied with the machine by the “EFKA DC1550 DA321G drive manufacturer (see also www.efka.net).

9. Sewing with machine equipped with positioning motor

9.1 Machine automatic functions

The machine has functions stated below which are automatically carried out during the seam sewing dependent on:

–

pre-selection

–

pedal position (according to the machine operator s selection)

–

work phase of seam sewing

Automatic function

Needle positioning

Bars

Initial bar

End bar

Thread trimming

Pre-selection

needle down at machine seam-stop

•

needle up at machine seam-stop

•

Note: After the seam finishing* the machine always stops with the needle up.

standard

•

ornamental**

•

single

•

double

•

standard bar stitch number forwards

•

ornamental bar stitch number forwards

•

standard bar stitch number backwards

•

ornamental bar stitch number backwards

•

single

•

• double

•

standard bar stitch number backwards

•

ornamental bar stitch number backwards

•

standard bar stitch number forwards

•

ornamental bar stitch number forwards

•

off

Automatic foot lifting

•

foot lowered at seam-stop

•

foot lifted at seam-stop

* The seam is finished after the pedal transition to position -2 (if the thread trimming is pre-selected, then after

trimming).

** At the bar sewing, the ornamental bar is characterized by the needle sticking in the same points as in the

previous seam.On the sewing direction change the machine will stop for a moment.

The automatic function pre-selections are described in the drive manufacturer s accompanying Instruction for Use.

For Efka DA321G motor also see the drive manufacturer s Instruction for Use on website www.efka.net. Certain automatic functions can be pre-selected by means of keys. Their description is included in the publication Efka Instructions for Use, sections 4, 12, 13.

Further automatic functions can be pre-selected through the drive parameter change. Every such function has its parameter number. For the parameter number also the parameter value can be pre-selected. The parameter change is described in the publication Efka Instructions for Use, sections 4.2, 4.3.

List of operator level parameters is included in the publication Efka Parameter List, section 5.1.

9.2 Example of machine control at sewing

Pedvolba:

needle down at machine seam-stop

standard bars

initial double bar

end double bar

thread trimming on

foot lowered at seam-stop

foot lifted at seam finishing

Operator s operation Machine work

Machine is at standstill. Needle is in upper position. Foot is lifted in accordance with pre-selection.

Sewn material inserting.

Pedal treading to position +1. Foot lowering.

Pedal releasing to position 0. Foot lifting.

Material position correcting.

Pedal treading to position +1. Foot lowering.

Pedal treading to position +3. Sewing of standard double bar (at the speed which was pre-selected by the

manufacturer) and subsequent sewing at the speed corresponding with speed gear +3.

Pedal releasing to position 0. Machine stopping with needle down.

Pedal treading to position -1. Foot lifting.

Material turning on needle.

Pedal treading to position +5. Foot lowering and subsequent machine start up at the speed of 5th sewing

speed gear.

Pedal treading to position -2. Speed reducing. Sewing of standard double bar. Thread trimming under

throat plate and machine stop with needle up. Foot lifting.

Pedal releasing. (Foot will remain lifted).

Sewn material removing.

10. Maintenace

10.1 Cleaning and checking

Attention! Danger of injury!

Maintenance may be carried out only when the machine is switched off and the motor stopped!

Attention!

Maintenance must be carried out in prescribed intervals. Neglection of maintenance may result in malfunction requiring costly repair.

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Mainenance operation Maintenance interval

Throat plate (1) disassembly. Cleaning of throat plate, hook(2), feed dog (3) and their surroundings.It is possible to clean with compressed air. Re-lubrication of hook path with oil and washing of dirt out of the path. 1 week Spraying the unnecessary oil out of the hook at the machine high speed operation. Check of oil reserve in oil tanks (see section 10.2).

Cleaning of mechanisms in the base plate. Cleaning (vacuuming, wiping out) 1 month oil tray. Cleaning of ventilator grid on the motor.

Check of bobbin case (4) fitting clearance in the hook housing (5). Check of drive V-belt tension (checking method is described in the second part of this Instruction for Use). Lubrication of swinging shafts with grease (see section 10.2). 1 year

10.2 Lubrication

Attention! Danger of injury!

Oil may cause dermatic diseases. Avoid complexion staining with oil. In case of staining wash the affected spot in water with soap.

Attention!

Handling of mineral oils is subject of legal prescriptions. Deposit the debased oil in an authorized dangerous waste scrap-yard! Protect the environment. Prevent oil leakages.

For this sewing machine lubrication use solely the lubrication oil DA-10or oil of the same properties with the following specification:

–

viscosity at 40C 10 mm

–

inflammation point 150C

The oil DA-10 is supplied by the companyDRKOPP ADLER AG in different packings:

Volume Order number

250 ml 9047 000011 1 l 9047 000012 2 l 9047 000013 5 l 9047 000014

2/s

To lubricate feed shafts use greaseMogul LV2EP which is supplied in 1 kg packing underorder number S111 200000.

12 6 3 5

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Oil lubrication –

If the oil volume in the tank (1) drops to the level indicated with MIN mark,add oil through the hole (2) up to MAX mark.

–

Add oil into tank (3) through the hole (4) at least once a week until the oil starts flowing from the terminal(5).

–

Add several drops of oil in holes (6) and (7) once a month.

Grease lubrication –

Add grease in grease cups(8) and (9) by means of a lubrication press once a year.

Duerkopp Adler 52Xi Operating Instruction

Specifications and Main Features

Frequently Asked Questions

User Manual