Duerkopp Adler 910 Operating instructions

910

CNC-Nähanlage für freie Nahtkonturen

CNC sewing unit for free seam contours

Bedienanleitung / Operating Instructions

Aufstellanleitung / Installation Instructions

Serviceanleitung / Service Instructions

Postfach 17 03 51, D-33703 Bielefeld Potsdamer Straße 190, D-33719 Bielefeld Deutsch/Englisch

Telefon +49 (0) 5 21/ 59 25-00 Telefax+49(0)521/9252435www.duerkopp-adler.com

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

04/2007 Rev. index: 01.0 Printed in Federal Republic of Germany 0791 910001

Eigentum der Dürkopp Adler AG und urheberrechtlich geschützt. Jede, auch auszugsweise

Wiederverwendung dieser Inhalte ist ohne vorheriges schriftliches Einverständnis der Dürkopp Adler AG

verboten.

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:

Part 3: Service Instructions for the Class 910

(Edition: 04/2007)

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

2. Arm shaft

2.1 Preparatoryadjustmentwork........................................ 4

2.2 Assemblyofthecrank............................................ 5

2.3 Armshaftpositioning ............................................ 6

2.4 Bevel gear for the hand wheel ....................................... 8

2.5 Adjust bobbin winder............................................. 9

2.6 Thread-trimmer cam ............................................. 10

2.7 Sewingfoothubeccentric.......................................... 11

2.8 Crankshaft drive to the hook shaft..................................... 12

2.9 Sewingmotorclutch............................................. 13

2.10 Referencepositionofthesewingmotor................................. 14

2.10.1Positionoftheinitiator............................................ 14

2.10.2Adjustreferenceposition.......................................... 15

3. Hook, looping stroke and needle bar height

3.1 Drivershaft .................................................. 16

3.2 Gearsegmentonthecamshaft ...................................... 17

3.3 Gearsegmenttothedrivershaft...................................... 18

3.4 Needle bar height............................................... 19

3.5 Distance between hook tip and needle .................................. 20

3.6 Looping stroke and needle protection................................... 21

4. Thread-guiding parts

4.1 Threadcontrollerspring........................................... 22

4.2 Thread regulator ............................................... 24

4.3 Adjustingthethreadtension........................................ 25

4.3.1 Mechanical adjustments to the thread tension ............................. 25

4.3.2 Calibrating................................................... 25

4.4 Thread feeding mechanism......................................... 26

5. Thread trimmer

5.1 Thread trimmer magnet ........................................... 27

5.2 Driveshaftposition.............................................. 28

5.3 Position of the hook knife .......................................... 30

5.4 Throatplateremoval............................................. 31

5.5 Cutting pressure / Position of the stationary knife ........................... 32

5.6 Fixing plate for the magnet ......................................... 33

5.7 Thread guiding sheet ............................................ 34

Index Page:

6. Material feed

6.1 Driveandmotorpositioning ........................................ 35

6.2 Referenceposition.............................................. 36

6.3 Positionofthefabricclampstotherestplates............................. 38

6.4 Sewingfoot.................................................. 39

7. Oil lubrication

7.1 Oilcirculation................................................. 41

8. Maintenance ................................................. 42

1. General notes

These service instructions describe the adjustments that can be made

to the sewing unit 910.

ATTENTION!

The operations described in these service instructions may only be

carried out by qualified staff or other appropriately trained persons!

Caution: danger of injury!

Always switch off main switch before any repair, alteration or

maintenance.

Carry out adjusting operations and functional tests of the running

machine only under observation of all safety measures and with

utmost caution.

These service instructions describe the adjustment of the sewing unit

in a logical order. Please observe that various setting positions are

dependent on each other. The adjustment process must therefore be

carried out in the order given.

For all adjustments of parts involved in the stitch formation, a new

undamaged needle must be inserted.

2. Arm shaft

2.1 Preparatory adjustment work

Some of the adjustments at the arm shaft 1 can be carried more easily

if the thread trimming mechanism 3 is removed.

Caution: danger of injury!

Switch off the main switch.

Remove and mount thread trimming mechanism only when the sewing

unit is switched off.

Remove mechanism

–Unscrew arm cover.

–Loosen screw 4 at the thread trimmer magnet.

–Unscrew screws 2 and 5 and take off thread trimming

mechanism 3.

Mount mechanism

–Push thread trimming mechanism 3 on the magnet and place it on

the machine head.

–Insert screws 2 and 5 and screw tight.

–Tighten screw 4 at the thread trimmer magnet.

–Adjust thread trimmer (see section 5.5).

5432

2.2 Assembly of the crank

Caution: danger of injury!

Turn off the main switch.

Remove and mount crank only when the sewing unit is switched off.

Important

The crank 4 has to be mounted on the arm shaft 1 in such a way that

the pivot 3 of the screw 2 reaches into the drill-hole on the arm shaft.

The screw 2 is the first screw in the direction of rotation.

Assembly

–Push crank 4 on arm shaft 1.

–Turn crank 4 so that its first drill-hole in the direction of rotation is

located above the drill-hole in the arm shaft 1.

–Insert screw 2 and tighten.

–Insert screw 5 and tighten.

2.3 Arm shaft positioning

Caution: danger of injury!

Turn off the main switch.

Check and adjust position of the arm shaft only when the sewing

unit is switched off.

Note and control

The arm shaft 1 should have no axial backlash, but it must not move

too sluggishly.

Check the arm shaft with regard to axial backlash and sluggishness.

Adjustment

–Loosen screws at the bobbin winder wheel 3.

–Loosen screws at the adjusting ring 4.

–Loosen screws at eccentric 5.

–Loosen screws at the bevel gear 6.

–Loosen screw at the adjusting ring 7.

–Loosen screws at the thread trimmer cam 9.

–Loosen screws at the motor clutch10.

–Push arm shaft crank 2 axially to the right as far as it will go.

–Push adjusting ring 8 against the bearing bush, and tighten screws.

–Check arm shaft for axial backlash and smooth operation.

–Push adjusting ring 7 to the right against the bearing bush, and

tighten screws.

4567

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