Duerkopp Adler 609 Operating instructions

609
Spezialnähmaschine
Serviceanleitung
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.:
01/2008 Rev. index: 00.0 Printed in Federal Republic of Germany 0791 609641
D
GB

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Eigentum der Dürkopp Adler AG und urheberrechtlich geschützt. Jede, auch auszugsweise Wiederverwendung
dieser Inhalte ist ohne vorheriges schriftliches Einverständnis der Dürkopp Adler AG verboten.
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.
Copyright © Dürkopp Adler AG - 2008

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 for the class 609
(Edition 01/2008)
1. General
1.1 Gauge Set ................................................... 4
2. Position of needle and needle hole ................................... 5
3. Material presser foot
3.1 Heightofthematerialpresserfoot .................................... 6
3.2 Timingofthemovementofthematerialpresserfoot.......................... 7
3.3 Strokeofthematerialpresserfoot .................................... 8
4. Opening the thread tension
4.1 Mechanical opening of the thread tension ................................ 9
4.2 Electromagnetic opening of the thread tension ............................. 10
4.3 ThreadControllerSpring.......................................... 11
5. Pre-adjustment to the needle bar height ............................... 12
6. Hook settings
6.1 Loop stroke and clearance of the hook point to the needle ...................... 13
7. Thread trimmer
7.1 Function sequence .............................................. 14
7.2 Threadtrimmerdrive............................................. 15
7.3 Knife carrier and thread-pulling knife ................................... 16
7.4 Hookshaftandknifecarrier ........................................ 17
7.5 Timingofthetrimmingprocess(controlcam).............................. 18
7.6 Position of the counter knife ........................................ 19
7.7 Cutting pressure of the counter knife ................................... 20
7.8 Re-sharpening the counter knife...................................... 21
7.9 Position of the thread guiding sheet.................................... 22
8. Bobbin winder
8.1 Function of the bobbin winder ....................................... 23
8.2 Bobbin fill quantity .............................................. 24
9. Oil lubrication
9.1 General..................................................... 25
9.2 Lubrication points............................................... 26
10. Maintenance ................................................. 27
11. Summary of all sewing machine settings ............................... 28
GB

GB
1. General
These service instructions describe the adjustments that can be made
to the 609-class special sewing machine.
609-100101: The single-needle lockstitch cylinder arm
machine with electromagnetic thread trimmer.
ATTENTION!
The operations described in these service instructions may only be
carried out by qualified staff or other appropriately trained persons!
Caution Risk of Injury!
Always switch off main switch before any repair, alteration and
maintenance.
Any adjustment work and function testing conducted while the machine
is running should follow all safety measures with the greatest possible
caution.
These service instructions describe the adjustment of the sewing
machine in a logical order.
Please observe that various setting positions are dependent on each
other. Thus it is essential that the settings be made in the order
described.
For all adjustments of parts involved in the stitch formation, a new
undamaged needle must be inserted.
ATTENTION!
All colored parts were set at the factory and should only be loosened
by skilled personnel.
3

1.1 Gauge set
You can use the setting gauges included in the gauge set to precisely
check and adjust the sewing machine.
Pos. Setting gauge Order no. Use
1 Gauge 0981 150003 Loop stroke
2 Block 0981 150002 Loop stroke
4
12

2. Position of needle and needle hole
Caution Risk of Injury!
Turnthemainswitchoff.
Check and set the position of the needle and needle hole only when
the sewing machine is turned off.
Rule and control
The needle-bar link must be standing over the needle hole, so that the
needle penetrates the middle of the hole.
Adjustment
–Take off the material presser foot.
–Turn the handwheel until the needle is positioned directly over the
needle hole.
–Loosen screw 2.
–Align the needle-bar link.
–Tighten screw 2 again.
–Mount and align material presser foot 1.
GB
5
21

3. Material presser foot
3.1 Height of the material presser foot
Caution Risk of Injury!
Turnthemainswitchoff.
Check and set the height of the material presser foot only with the
sewing machine turned off.
Rule and control
The distance between the material presser foot 2 and the needle plate
1 should be 0.3 mm.
The setting can be made with a feeler gauge.
–Turn handwheel until the material presser foot is at its lowest point.
–Use the feeler gauge to check is the height is correct.
The spool must abut the radius of the retainer (the left side).
During the entire course of the needle movement, the guide piece 5
should neither strike the top, nor protrude out from the guide 6.
Adjustment
Setting the height of the material presser bar
–Loosen clamping screws 3.
–Set the material presser foot higher or lower (place the feeler
gauge under the foot).
–Press the retainer against the spool.
–Tighten screws 3 again.
Setting the guide piece
–Loosen screw 4.
–Push the guide piece 5 accordingly.
–Tighten screw 4 again.
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