Durkopp Adler 4181i Bruksanvisning

Durkopp Adler Symaskin 4181i

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Sida 1/37

Instructions for service

4181i - 1

Minerva Boskovice, a.s., Sokolská 60, CZ - 680 17 Boskovice

Tel.: +420-516-453434, 453433, 494111 Fax: +420-516-452165 http://www.minerva-boskovice.com

Edition: 02/2005 Printed in Czech Republic S735 000674

CONTENTS:

1.General safety instructions ............................................................................................................................................................. 1

2. Intro uctiond ............................................................................................................................................................................................ 1

3.Head of t eh se inw g machine ........................................................................................................................................................... 2

3. 1 Hook and hook post ............................................................................................................................................................... 2

3.1.1 Description

3.1.2 H g ei ht settin theg of hook

3.1.3 Settin the distance the hookg of from the needle

3.1.4 A g n ular settin theg of hook (timing)

3.1.5 Protection the needle and the hook point of of

3.1.6 Settin the bobbin case openerg of

3.1.7Settin the re ulation the hook lubricationg g of

3.1.8 Replacement the hook of

3.1.9 Settin theg gear

3.1.10 D ismantlin theg of hook post

3.2 Needle and thread mechanism ............................................................................................................................................... 5

3.2.1 Description

3.2.2 To check the handwheel an ular ad ustment g j

3.2.3 H g ei ht settin theg of needle bar

3.2.4 Side settin the needle bar holder g of

3.2.5 Settin the needleg (the needle bar holder in the direction sewin ) of g

3.3 Throat plate and its post ...................................................................................................................................................... 7

3.3.1 escriptionD

3.3.2 Mountin and removin the throat plate and its insertg g

3.3.3 Side settin the throat plate post g of

3.4 Thread tensioners and limiter ............................................................................................................................................. 8

3.4.1 escriptionD

3.4.2 Settin the tension main and auxiliar tensionersg of y

3.4.3 Settin the tensionin mechanisms the main tensionersg g of

3.4.4 Settin the adaptin spring g g

3.4.5 Settin the thread limiterg

3.4.6 Settin the additional thread limiterg

3.5 Feeding mechanism of the needle feed and of the lower feed wheel ........................................................................10

3.5.1 escriptionD

3.5.2 Stitch len th mechanism g

3.5.2.1 Settin the upper eccentricg

3.5.2.2 Settin the propg

3.5.2.3 a Forward and rearward stitch len th distribution g (roug )h

3.5.2.3 b Forward and rearward stitch len th distribution g (fine)

3.5.2.4 Settin the control knobg of (includin the stitch len th limitationg g )

3.5.3 Lower feed wheel

3.5.3.1 Feedin clutchesg

3.5.3.1.1 escriptionD

3.5.3.1.2 Settin the lever the second step eedin an le, positiong of of f g( g )

3.5.3.1.3 Settin the lower eccentricg of

3.5.3.1.4 Settin the en ement and disen ement the clutchesg g ga g ga of

3.5.3.2 Wheel feeder and its post

3.5.3.2.1 Hei ht settin theg g of feeder and tensionin g of the chain

3.5.3.2.2 Replacement the of feeder

3.5.4 Settin the top rollerg (pressin orce, hei htg f g )

3.6 Feeding mechanism of the top roller ...............................................................................................................................15

3.6.1 escriptionD

3.6.2 Side settin the indented lower pulle g of y

3.6.3 Side settin the indented upper pulle g of y

3.6.4 Settin the tensionin rollerg g

3.6.5 Replacement the indented belt of

3.6.6 Top roller

3.6.6.1 Selection the top roller diameter of

3.6.6.2 Forward, rearward and side settin g

3.6.6.3 Settin theg gear clearance and in the mountin the top roller g of

3.6.6.4 Replacement the top roller of

3.7 Setting the presser foot lift ..................................................................................................................................................1 9

3.8 Bobbin winder ...................................................................................................................................................................... 20

3.8.1 Description

3.8.2 Settin the bobbin winder stopg

3.8.3 Settin theg friction gear

3.9 Safety clutch ......................................................................................................................................................................... 21

3.9.1 Description

3.9.2 Settin the disen in momentg g gag

3.10 Indented belt transmission ................................................................................................................................................ 21

3.10.1 Settin the tensionin roller the indented beltg g of

3.10.2 Replacin the indented beltg

3.11 V-belt, motor - head ............................................................................................................................................................ 22

3.11.1 Tensioning

3.11.2 Replacin theg V-Belt

3.12 Driving toothed belt ............................................................................................................................................................. 22

3.12.1 To exchan the drivin toothed beltg e g

3.13 Lubrication ............................................................................................................................................................................ 23

3.13.1 Description

3.13.2 Re illin oilf g

3.13.3 Multiple oil use

4.Th ad re tri inmm g ............................................................................................................................................................................... 24

4.1 D escription of the trimmin mechanismg

4.2 Settin the pickup rollerg

4.3 Settin the camg

4.4 Settin theg fork

4.5 Settin the movin knig g fe

4.6 Settin the hei ht theg g of fixed kni and the retainin sprin the lower thread f e of g g of

4.7Settin theg fixed kni fe

4.8 Settin the retainin sprin the hook threadg g g of

4.9 Settin switchin the electroma netsg g of g

5. Material e edg tri inmm g ................................................................................................................................................................ 27

5.1 Description of the trimming mechanism

5.2 Dismantling and assembly of the motor - trimming drive

5.3 Setting of the trimming knife lifting

5.4 Replacement and setting of the trimming knife position

5.4.1 Replacement the kni and settin the distance between the kni and the throat plate insert of f e g of f e

5.4.2 Settin the kni position g of f e (turnin in the sewin directiong) g

5.4.3 Hei ht settin the knig g of fe

5.5 Setting of engaging and disengaging of the trimming mechanism, of the angaging and carried lever stop

5.5.1 Description

5.5.2 Settin g f g o the eng ga in lever stop

5.5.3 Settin the position g of (shi tin the carr in leverf g) of y g

5.5.4 Settin the carried lever stop g of

5.5.5 Settin the trimmin mechanism en ement g of g g ga

5.5.6 Settin the torsional moment the return sprin g of of g

5.6 Sharpening of the knives

5.7 Sewing without trimming

6.L h lifting t e to ro erp ll by e ectro netmag ...................................................................................................................................... 31

6.1 Description

6.2 Settin the electroma net ping g

6.3 Settin the electroma net currentg g

6.4 A f gssembl they of top roller li tin electromag net

7.Bac t ck a king using electro netmag ................................................................................................................................................ 32

7.1 Description

7.2 Electromag g gnet hei ht settin

7.3 Settin theg position of push-buttons

7.4 Chang e of the function push-buttons of

8.C h l l m honnecting t e e ectric e e ents on t e machine head ........................................................................................................ 32

9. D rive contro ne osition, l pa l, p sensor ....................................................................................................................................... 32

10.Ma ablintenance (t e of operations) ............................................................................................................................................. 33

11.Setting t eh machine accor in to se in te ord g h t e w g ca g y .......................................................................................................... 33

11.1 Introduction