DURKOPP ADLER 745-34 - Manuale utente

745 - 34 Speedpocket

Sewing unit for runstitching

of rectangular piped pockets

Operating Instructions

Installation Instructions

Service Instructions

Instructions for programming DAC

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: Änderungsindex Teile-Nr./Part.-No.:

06/2007 Rev. index: 02.0 Printed in Federal Republic of Germany 0791 745171

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.

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

instruction book and operated by persons with appropriate training.

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

instructions of the motor supplier.

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

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

the relevant safety regulations.

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

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.

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

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.

Index Page:

Preface and general safety instructions

Part 1: Operating Instructions 745-34 Speedpocket

(Edition: 06/2007)

1. Description of product ........................................ 3

1.1 Description of proper use........................................ 3

1.2 Briefdescription............................................. 3

1.3 Technicaldata .............................................. 4

1.4 Optional equipment ........................................... 5

2. Operation

2.1 Swingingthefoldingstationaside................................... 7

2.2 Pushing the covering hood back and removing the fabric sliding sheet ............ 8

2.3 Tilting the machine head up ...................................... 11

2.4 Needles and threads .......................................... 12

2.5 Threading in the needle thread .................................... 15

2.6 Winding up the hook thread ...................................... 16

2.7 Changing the bobbins .......................................... 17

2.8 Threadtension.............................................. 19

2.9 Stackingcontrol ............................................. 20

2.10 Cornerknifestation........................................... 21

2.10.1 Swingingthecornerknifestationout/in .............................. 22

2.10.2 Adjustingthecornerknives ...................................... 23

2.11 Referenceposition-Startingthesewingcycle-Quickstop................... 24

2.12 Flapandpipingprojection ....................................... 25

2.13 Piping strip length ............................................ 26

2.14 Workingmethod............................................. 27

2.14.1 Working method (production of trousers) .............................. 28

2.14.2 Sewingwithflap............................................. 31

2.14.2.1 Sewing without light-barrier ...................................... 31

2.14.2.2 Sewingwithlight-barrier ........................................ 33

3. Functions and operation of the optional equipment

3.1 Remainingthreadmonitor ....................................... 36

3.2 Aligning the light barriers of the bobbin thread monitor ...................... 37

3.3 Blowingdevice.............................................. 39

3.4 Bundle clamp ............................................... 40

3.5 Mounting table extensions ....................................... 41

3.6 Vacuumblower.............................................. 42

3.6.1 Checkingthenominalvoltageofthevacuumblower ....................... 43

3.6.2 Directionofrotationofthevacuumblower ............................. 43

3.6.3 Connection to the factory-own vacuum system ........................... 44

3.7 Mounting the 2nd lightbarrier ..................................... 45

4. Maintenance

4.1 Cleaning .................................................. 46

4.2 Weeklylubrication............................................ 48

1. Description of product

1.1 Description of proper use

The 745-34 Speedpocket is a sewing unit determined to sew light to

medium-weight material, i.e. fabrics made of textile fibers or leather.

These materials are used in the clothing industry.

Generally only dry material should be processed with this machine. It

should not contain any hard objects.

In general, the seam is made with core thread, Polyester fibre or cotton

threads.

The dimensions for needle and hook threads can be taken from the

table in chapter 2.4.

Before using any other threads it is necessary to estimate the

consequent risks and to take corresponding safety measures, if

required.

This sewing unit must be installed and operated in dry and well-kept

rooms only. If it is operated in other rooms, which are not dry and

well-kept, further measures, which are to be agreed upon, can become

necessary (see EN 60204-31:1999).

We, as a manufacturer of industrial sewing machines, take it for

granted that at least semi-skilled operators will be working on our

products so that we can assume that all usual operations and, where

applicable, their risks are known to them.

1.2 Brief description

The Dürkopp-Adler 745-34S is a sewing unit for runstitching

of rectangular piped pockets.

The piping strips and additional parts are fed manually. Pocket length

20-200 mm (with flap 180 mm max.).

Machine head

–Twin needle lockstitch execution

–Large vertical hooks

–Externally driven center knife

–Thread trimming device for needle and hook threads

–Thread monitor for the needle threads

–DC direct sewing drive

Step motors for the material feed

New generation of control “DAC III” (DÜRKOPP ADLER Control)

The comprehensive testing and monitoring system MULTITEST is

integrated in the DAC III.

A microcomputer assumes the control tasks, monitors the sewing cycle

and indicates faulty operation and malfunctions on the display.

Optional equipment

See chapter 1.4 (Optional equipment of class 745-34S).

Sewing equipment and folders

Information about sewing equipment and folders for the various fields

of application can be taken from the Equipment Sheets of

class 745-34S.

Please address your enquiries to the DÜRKOPP-ADLER-sales offices.

1.3 Technical data

Machine head: Class 0246 992003

Needle system: 2134-85

Needle distance: 10, 12 mm

Needle size: Nm 80 to Nm 110

Threads: see table chapter 2.4

Stitch type: Twin needle lockstitch

Speed: min. 2000 r/ min

max. 3000 r/ min

Stitch length: min. 2.0 to 3.0 mm

Number of stitches

condensed stitches: 1 - 10 stitches

Number of stitches

bartack stitch: 0 - 5 stitches

Number of stitches condensed

stitches / bartack: 0.5 - 3.0 mm

Pocket length: max. 200 mm

Operating pressure: 6 bar

Air consumption: approx. 6 NL per work cycle

Nominal voltage: 1 x 230 V (50/60 Hz)

Dimensions: 1540 x 1120 x 1200 mm (L x W x H)

Working height: 790...980 mm

(upper edge of table top)

Weight: 240 kg

1.4 Optional equipment

Order No. Optional equipment

0792 011161 Mounting kit K

Flap clamp, left, for jackets

0792 011162 Mounting kit K

Flap clamp, right, for trousers

0745 427514 Pincer stacker

Universal stacking device (pincer stacker)

for stacking to the side

0797 003031 Pressure line

Connection hose to the pneumatic supply line

with corresponding couplings

0246 497534 Remaining bobbin thread monitor

0745 597694 Bundle clamp

with rest table for trousers parts. incl. table extension

(large).

0745 597604 Blowing device

For blowing out the finished parts.

0745 597964 Vacuum blower for the suction device, if there is no

central vacuum system.

0745 597984 Suction device (Vacuum)

For more exact positioning of the material ,

for connection to the central vacuum system.

Note:

If there is no central vacuum system available,

the vacuum blower has to be ordered in addition.

0745 598154 Kit 2nd light barrier for applications

Trouser / Jacket

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