Duerkopp Adler 506-3 Operating instructions

506-3

Instructions, complete

Operating Instructions

Installation Instructions

Service Instructions

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.:

10/2008 Rev. index: 01.0 Printed in Federal Republic of Germany 0791 506011

Instructions, complete

506-3

Overview

Operating table

Operating Instructions

Installation Instructions

Service Instructions

Pneumatic circuit plan

9770 506002

Interconnection-diagram

9890 506003 B

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.

Contents Page:

Part 3: Service Instructions Cl. 506-3

1. General .................................................... 3

2. Removing the top cover and turning over the upper part of the machine

2.1 Removingthetopcover........................................... 4

2.2 Turning over the upper part of the machine ............................... 6

3. Shuttle, needle bar

3.1 Needle bar height............................................... 7

3.2 Synchronizing the shuttle and needle bar movements......................... 9

3.3 Shuttle-tip/needle distance ......................................... 10

3.4 Driver/needle distance ........................................... 11

3.5 Loop stroke .................................................. 13

4. Bobbin ejector ................................................ 14

5. Disc cam

5.1 Replacingthedisccam........................................... 17

5.2 Fittingtheintermediatetransmission................................... 20

5.3 Replacing the worm-gear pair and worm screw ............................. 21

5.3.1 Fit/Remove the synchronous motor .................................... 21

5.3.2 Replacing the worm-gear pair and worm screw ............................. 23

5.4 Worm-screw wheel play ........................................... 24

6. Shut-down devices

6.1 Basicstopposition(switchS7)....................................... 27

7. Clamps and table plate

7.1 Position of table plate with respect to the needle ............................ 29

7.2 Positionofclampswithrespecttothetableplate............................ 32

8. Thread advance ............................................... 33

9. Thread-tensioning spring ......................................... 34

10. Needle cooling ................................................ 35

Contents Page:

11. Thread-burning device

11.1 Threadextractor ............................................... 36

11.2 Upper burning device ............................................ 38

11.2.1Startingposition................................................ 38

11.2.2 Position of fully-extended burner ..................................... 39

11.2.3Adjustingtheburnerheight-stop...................................... 40

11.2.4 Burner angle.................................................. 41

11.3 Lowerburningdevice ............................................ 42

11.3.1 Adjustment preconditions .......................................... 42

11.3.2Distancebetweenthreadextractorandburner............................. 43

11.3.3Positionofburnerwhenswivelledforwards............................... 43

11.3.4Burnerheight................................................. 44

11.3.5 Thread-extractor height ........................................... 44

12. Thread-suction device ........................................... 45

13. Bobbin-winder adjustment ........................................ 46

14. V-belt tension ................................................ 47

1. General

These service instructions describe the adjustment of the automatic

sewing machine in an appropriate order.

CAUTION:

Various adjustments are mutually dependent.

It is therefore essential for adjustments to be carried out in the order

described.

CAUTION:

The activities described in these servicing instructions may be carried

out only by experts or by persons with the appropriate training.

Danger of breakage

It is essential for the adjustments specified in these servicing

instructions to be carried out before the machine is recommissioned

following disassembly.

Never start the machine with the drive motor rotating in the wrong

direction.

A sewing run may not commence unless the head cover and the

shuttle-area cover are closed.

If either of these is open, all control functions are blocked.

CAUTION: danger of injury

Prior to all repair, modification and maintenance work the main switch

must be turned off and the machine disconnected from the

compressed-air supply.

Adjustment work and function testing carried out with the machine

running require the utmost care and observance of all safety

precautions.

Setting gauges

We can supply the following setting gauges on request:

Setting gauge Use Order No.

Gauge Loop-stroke adjustment 0981 150009

Calliper Loop-stroke adjustment 0981 150006

Gauge Adjusting the arm-shaft 7270 159160

eccentric (optional)

2. Removing the arm cover and Turning over the upper part of the machine

2.1 Removing the arm cover

For service work in the interior of the upper part of the machine the

arm cover 3 must be removed.

First the control unit 1 must be swivelled aside and the bobbin-winder

cartridge 2 removed.

CAUTION: danger of injury

Turn off the main switch and disconnect the machine from the

compressed-air supply.

The arm cover must not be removed until both these steps have been

taken.

Swivelling the control unit aside

–Slightly undo Allen screws 5.

These are accessible through the holes 4 in the casing.

–Carefully swivel the control unit aside.

321 54

Removing the bobbin-winder cartridge

–Undo fixing screws 6.

–Lift off bobbin-winder cartridge.

Removing the arm cover

–Undo arm-cover fixing screws 2.

–Carefully raise the arm cover 2 and fold it back.

–Remove compressed-air hose 7 from the quick-release fastening:

Push the ring 8 to the right and pull the hose out of the

quick-release fastening.

CAUTION :

The use of force to remove the arm cover may cause damage to the

compressed-air line.

627

2.2 Turning over the upper part of the machine

For service work on the underside of the upper part of the machine the

upper part must be turned over.

CAUTION: danger of injury

Turn off the main switch.

The upper part of the machine must not be turned over unless

themainswitchisoff.

–Carefully turn over the upper part of the machine until it is

supported by the table-plate prop.

The underside of the upper part of the machine is now accessible

for service work.

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