Duerkopp Adler 175 User manual

175 176 179
Spezialnähmaschine
Betriebsanleitung
Instruction manual
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
D
GB
Ausgabe / Edition: Änderungsindex Teile-Nr./Part.-No.:
10/2010 Rev. index: 02.0 Printed in Federal Republic of Germany 0791 175740

Alle Rechte vorbehalten.
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 - 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
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 hints
Part 1: Operating Instructions cl. 175 176 179 – Original Instructions
(Edition 10/2010)
1 Product description ............................................ 5
2 Designated use ............................................... 5
3 Subclasses .................................................. 7
4 Optional equipment............................................. 9
5 Technical data
5.1 Technicaldataofthesubclasses..................................... 15
6 Operating
6.1 Threadingtheneedlethread........................................ 12
6.2 Threadingthelooperthread........................................ 13
6.3 Adjustingtheneedlethreadtension ................................... 14
6.4 Needlethreadquantityforsafestitchformation............................ 14
6.5 Adjustingthelooperthreadfeeder.................................... 15
6.6 Adjustingthefeedlength.......................................... 16
6.7 Changingtheneedles............................................ 18
6.8 Adjustingthesewingfootpressure.................................... 19
6.9 Adjustingthetopfeedfootpressure................................... 20
6.10 Sewingfootlift................................................ 21
6.11 Keypadonthemachinearm........................................ 21
7Sewing..................................................... 22
8 Maintenance
8.1 Cleaningandtesting............................................. 23
8.2 Lubrication................................................... 25
GB

1 Product description
The DÜRKOPP ADLER class 175 is a single needle flat bed
double-chainstitch crossline sewing machine with differential foot top
feed and bottom feed for linear seams according to stitch type 401 for
processing light to medium-weight material.
The class 176 is a single needle flat bed double-chainstitch crossline
sewing machine with differential bottom feed.
For linear seams according to stitch type 401 for processing light to
medium-weight material.
The class 179 is a single-needle flatbed single-chainstitch crossline
sewing machine with bottom feed and differential upper foot feed for
edge basting seams in jackets, blazers and coats. for linear seams
according to stitch type 101 for processing light to medium-weight
material.
lClass 175 with 4 mm stitch length and by a needle stroke of
30 mm a max. top feed length of 8 mm.
lClass 176 with 4 mm stitch length and by a needle stroke of 30
mm a max. differential bottom feed length of 6 mm.
lClass 179 with 4 mm to 8 mm stitch length and a max. top feed
length of 8 mm with a needle rise of 32 mm.
lForward sewing only.
lTested and approved top feed foot of the class 275 with an
automatic stroke adjustment for good properties of climbing.
lAn automatic adaptation of the looper thread quantity to the stitch
length allows an optimum stitch formation in every stitch length,
even with balloon stitch.
2 Designated use
Class 175/176/179 is a sewing machine head determined for
processing light to medium-weight material, i.e. fabrics made of textile
fibers or leather. Such sewing materials are used in the clothing
industry and for the production of home upholstery.
Furthermore, this sewing machine head can also sew so-called
technical seams. However, in this case the user has to estimate the
possible risks (preferably in cooperation with DÜRKOPP ADLER AG)
because on the one hand such fields of application are comparatively
rare and on the other hand there is an immense variety of application
possibilities. According to the result of this estimation suitable safety
measures may have to be taken.
5
GB

Generally only dry fabrics must be processed on this sewing machine
head. The material must not be thicker than 4 mm when compressed
by the lowered sewing feet. It must not include any hard objects
because otherwise the sewing machine head would be allowed to be
operated with an additional eye protection only. Such an eye
protection cannot be delivered at present.
In general the seam is produced with sewing threads made of textile
fibers up to 70/3 Nm (core thread). If other threads are to be used, it is
indispensable also in this case to consider the possible risks and to
take corresponding safety measures, if necessary.
The sewing machine may be set up and operated only
in dry, well-maintained premises. If the sewing machine is used in
premises which are not dry and well-maintained it may be
necessary to take further precautions (which should be agreed in
advance - see EN 60204-31:1999).
As manufacturers of industrial sewing machines we proceed on the
assumption that personnel who work on our products will have
received training at least sufficient to acquaint them with all normal
operations and with any hazards which these may involve.
6

3 Subclasses
175-141621 Single needle double-chainstitch machine with
bottom feed and differential top feed,
with condensed stitches (electropneumatic),
electropneumatic sewing foot lift and thread trimmer
for needle and looper thread underneath the throat
plate.
The electropneumatic thread advancing device for
needle and looper thread combined with the
electropneumatically driven thread tension and the
clamp spring on the looper allows a safe stitch
formation.
As standard equipped with a direct drive fitted to the
sewing machine with the corresponding control unit.
Stitch length, stitch length of the condensed stitch
and the top feed value can be easily adjusted via
setting wheel.
Buttons for changing the needle position, stitch
condensation and one-time suppression/activation
of condensed stitches are part of the standard
equipment.
Equipped with the direct drive Efka
DC 1500-DA220C (incl. connection cable).
176-141621 Single needle double-chainstitch machine with
differential bottom feed, with condensed stitches
(electropneumatic), electropneumatic sewing foot lift
and electropneumatic thread trimmer for needle and
looper thread under the throat plate.
The adjustable electropneumatic thread advancing
device for needle and looper thread combined with
the electropneumatically driven thread tension and
theclampspringonthelooperallowsasafestitch
formation.
As standard equipped with a direct drive fitted to the
sewing machine with the corresponding control unit.
Stitch length, stitch length of the condensed stitch
and the differential bottom feed value can be easily
adjusted via setting wheel. Buttons for changing the
needle position, stitch condensation and one-time
suppression/activation of condensed stitches are
part of the standard equipment.
Equipped with the direct drive Efka
DC 1500-DA220C (incl. connection cable).
7
GB

179-171629 Single-needle flatbed single-chainstitch crossline
sewing machine with bottom feed and differential
upper foot feed, but with electropneumatic sewing foot
lifting, adjustable electropneumatic thread advancing
device, electropneumatic driven thread tension and
with electropneumatic thread cutter for the needle
thread below the stitch plate.
The remaining thread on the material is long enough to
prevent the seam’s unravelling. As standard equipped
with a direct drive fitted to the sewing machine with
the corresponding control unit.
The bottom feed is set underneath the bed plate and
the top feed via a setting wheel on the machine arm.
The machine is equipped with the direct drive Efka
DC 1500-DA220C (incl. connection cable).
8