Duerkopp Adler 1281, 5-1 Service Manual
1281/5-1
Sewing unit for closing seams
for trousers and skirts
Operating Instructions
Installation Instructions
Service Instructions
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Postfach 17 03 51, D-33703 Bielefeld • Potsdamer Straße 190, D-33719 Bielefeld
Telefon +49 (0) 521 / 9 25 23 40 • Telefax +49 (0) 521 / 9 25 25 83 • www.beisler-sewing.com
Ausgabe / Edition: Änderungsindex Teile-Nr./Part.-No.:
01/2011 Rev. index: 00.0 Printed in Federal Republic of Germany 0791 128102
All rights reser ved.
Property of Beisler GmbH and copyrighted. Reproduction or publication of the content in any manner,
even in extracts, without prior written permission of Beisler GmbH, is prohibited.
Copyright ©
Beisler GmbH - 2011
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
2. Before putting into service also read the safety rules and
3. The machine must be used only for the purpose intended. Use of
4. When gauge parts are exchanged (e.g. needle, presser foot, needle
5. Daily servicing work must be carried out only by appropriately
instruction book and operated by persons with appropriate training.
instructions of the motor supplier.
the machine without the safety devices is not permitted. Observe all
the relevant safety regulations.
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.
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.
Content Page:
Part 3: Service Instructions Class 1281/5-1
(Edition: 01/2011)
1 General Information ............................................ 3
2 Quick start guide for the sewing head
2.1 Adjusttheneedlebarheight........................................ 4
2.2 Adjust the hook ................................................ 5
2.2.1 Distance of the left hook from the needle ................................ 5
2.2.2 Distance of the right hook from the needle ............................... 7
2.3 Adjustingtheneedleguard......................................... 9
2.3.1 Rearneedleguard.............................................. 9
2.3.2 Frontneedleguard.............................................. 10
2.4 Adjustingthefeeddog ........................................... 11
2.4.1 Feeddogposition .............................................. 11
2.4.2 Feeddogheight ............................................... 12
2.5 Presserfoot.................................................. 13
2.5.2 Presser foot upper part EXT 3216 ..................................... 13
2.5.2 Presserfoot.................................................. 14
2.6 Upperandlowerknife ........................................... 15
2.6.1 Changingandadjustingtheupperknife................................. 15
2.6.2 Changingandadjustingthelowerknife................................. 16
2.7 Threadregulationofserginglooper.................................... 17
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3 Adjusting the sewing unit
3.1 Adjustingthelightbarrier.......................................... 18
3.2 Adjustingtheworkpiecelimitstop .................................... 19
3.3 Adjustingthecontourguide ........................................ 20
3.4 DirectDriveSewingMode ......................................... 21
3.4.1 Adjustingthereference........................................... 21
4 Lubrication
4.1 Oilchangeandoilfilterchange...................................... 22
5 Maintenance ................................................. 23
1 General Information
The service instructions at hand describe the adjustment of the seam
closing unit 1281/5-1.
It comprises:
Quick start guide for the sewing head
·
Service instructions for the sewing unit
·
ATTENTION!
The quick start guide represents an extract from the detailed
operating instruction for the sewing head. These operating
instructions must, in any case, be read completely and all the
instructions must be followed. The company Beisler does not
assume any warranty for the correctness of the following
explanations.
ATTENTION!
The activities described in these service instructions may be
performed only by qualified personnel or appropriately trained
personnel!
Caution: Risk of Injury !
Switch off the main switch when performing repair, rebuild or
maintenance jobs.
Alignment jobs and functional tests may be performed on a running
machine only if all the safety measures are observed and extreme
care is taken.
The service instructions at hand describe the adjustment of the
sewing unit in purposeful sequence.
At this juncture, it must be borne in mind that the various setting
positions are dependent on each other.
Therefore, make absolutely sure that you perform the adjustment in
the described sequence.
A new, faultless needle must be used for all adjustment jobs on
stitch-forming parts.
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2. Quick start guide for the sewing head
2.1 Adjusting the needle bar height
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Caution: Risk of Injury !
Switch off the main switch.
Check and adjust the needle bar height only when the sewing unit is
switched off.
Regulation and Control
At the upper dead center of the needle bar, the distance between
needle point 4 and throat plate must be 9.7 - 9.9 mm.
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Turn the needle bar in its upper dead center.
–
Check as to whether the distance between needle point 4 and
throat plate 5 is 9.7 to 9.9 mm.
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Correction
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Unscrew the lid screw 1 and remove lid 2.
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Turn the needle bar in its upper dead center.
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Swivel out the sewing foot.
5
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Loosen the screw 3 up to the point that the needle bar just about
allows itself to be pushed.
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Move the needle bar up to the point that the distance between
needle point 4 and throat plate 5 is 9.7 to 9.9 mm.
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Tighten the screw 3.
–
Screw on the lid 2 once again.
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2.2 Adjusting the hook
2.2.1 Distance of the left hook from the needle
5
2,3 - 2,5 mm
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4
Caution: Risk of Injury !
Switch off the main switch.
Check and adjust the hook only when the sewing unit is switched off.
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Adjustment crosswise from sewing direction
Regulation and Control
In the left reversal point of the hook 5, the distance between needle
center and hook point should be 2.3 to 2.5 mm.
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With the hand wheel, tur n the left hook to its left rever sa l poin t.
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Check as to whether the distance between needle center and hook
point is 2.3 t o 2.5 mm.
Correction
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Unscrew throat plate, front feed dog, as well as front and rear
needle guard.
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With the hand wheel, tur n the hook to its left reversal point.
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Loosen screw 1 and bring the hook to bear against the limit
stop 2.
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Retighten the screw 1.
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Loosen the screw 4 up to the point that the hook carrier 3 just
about allows itself to be turned.
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Turn the hook carrier up to the point that the distance between
needle center and hook point is 2.3 to 2.5 mm.
Note
Do not yet tighten the screw 4.
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