Duerkopp Adler 1280i-6 Instructions For Service Manual
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Duerkopp Adler 1280i-6 Instructions For Service Manual

Duerkopp Adler 1280i-6 Instructions For Service Manual

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Instructions for service
1280i - 6
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: 10/2004
Printed in Czech Republic
S735 000640

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  • Page 1 All manuals and user guides at all-guides.com Instructions for service 1280i - 6 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: 10/2004 Printed in Czech Republic S735 000640...

  • Page 2: Table Of Contents

    All manuals and user guides at all-guides.com CONTENTS: General safety instructions ................................1 Introduction ......................................1 Head of the sewing machine ................................2 3. 1 Hook and the hook box ................................2 3.1.1 Description 3.1.2 Height setting of the hook 3.1.3 Setting the distance of the hook from the needle 3.1.4...
  • Page 3 All manuals and user guides at all-guides.com 3.7.6 Top roller 3.7.6.1 Selection of the top roller diameter 3.7.6.2 Forward, rearward and side setting 3.7.6.3 Setting the gear clearance and in the mounting of the top roller 3.7.6.4 Replacement of the top roller Setting the presser foot lift ..............................

  • Page 4: General Safety Instructions

    All manuals and user guides at all-guides.com 1. 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 of the instruction book and operated by persons with appropriate training. 2.

  • Page 5: Head Of The Sewing Machine

    All manuals and user guides at all-guides.com 3. Head of the sewing machine 3.1 Hook and the hook box 3.1.1 Description The hook (1) is mounted on the shaft (2) and is driven by the gear (3) from the shaft (4). The shaft of the hook (2) is mounted on the top in a sliding bearing and, on the bottom, in a needle bearing.

  • Page 6: Angular Setting Of The Hook (Timing)

    All manuals and user guides at all-guides.com 3.1.4 Angular setting of the hook (timing) The hook is to be angularly set in such a way that the hook point (1) is opposite the needle at the moment, when the needle shifts by 2.5 mm from its bottom dead center. This corresponds to the 2O5°...

  • Page 7: Setting The Regulation Of The Hook Lubrication

    All manuals and user guides at all-guides.com 3.1.7 Setting the regulation of the hook lubrication By turning the lubricating tube (1) in the sense of the arrow (2), the size of the contacting surface between the wick (3) and the felt insert (4) is regulated. In this way, the speed of the capillary lift of oil into the felt insert (5) is influenced, from which oil is wiped on the surface (6) and is driven by centrifugal force into the hook path (7).

  • Page 8: Dismantling Of The Hook Box

    All manuals and user guides at all-guides.com 3.1.10 Dismantling of the hook box When dismantling the box (1), the supplies of lubricating oil are to be disconnected first, the fastening screws unscrewed and, thereafter, the box is removed. Caution ! Danger of injury! Switch off the main switch! Before starting the setting operation, wait until the motor stops! - Unscrew the screw (8) from the oil tank (4) and pull the box...

  • Page 9: Side Setting Of The Needle Bar Holder And Setting Of The Needle Bed Shifting

    All manuals and user guides at all-guides.com 3.2.3 Height setting of the needle bar At the moment, when the hook point passes around the needle, the upper edge of the needle eye must be about 1 mm below the hook point. In an opposite case, it is necessary to set the height of the needle bar as follows: Caution ! Danger of injury! Switch off the main switch! Before starting the...

  • Page 10: Throat Plate And Its Post

    All manuals and user guides at all-guides.com 3.3 Throat plate 3.3.1 Description The throat plate (1) is always for the given stitch width of needles and universal for all respective categories of sewing (see Tab. sewing equipments - Spare parts list). In the throat plate there is mounted an exchangeable throat plate insert (2).

  • Page 11: Front And Rear Guides Of Needles

    All manuals and user guides at all-guides.com 3.4 Front and rear guides of needles 3.4.1 Description The front guide (1) and the rear guide (2) are used together for stitch widths of a tandem arrangement. With the sewing categories 300 and 400, it is possible to replace these guides by one guide (4) /the rear guide and the side guide in one guide/.

  • Page 12: Setting Of The Rear And Side Guides

    All manuals and user guides at all-guides.com 3.4.4 Setting of the rear and side guides With the sewing categories 300 and 400, it is possible to replace the front and the rear guides by one guide. This is a variant, where the use of the front and of the rear guides does not enable attaining a satisfactory stitch locking.

  • Page 13: Thread Tensioners And Limiter

    All manuals and user guides at all-guides.com 3.5 Thread tensioners and limiter 3.5.1 Description The main tensioners (1) serve for producing the thread tension when tightening stitches. The auxiliary tensioners (2) prevent the pulling out of the thread after having ended the thread trimming when removing the sewn material, when the threads are being passed through this material and when the main tensioners are relieved.

  • Page 14: Setting The Adapting Spring

    All manuals and user guides at all-guides.com - In the rest state of the machine (with not relieved tensioner discs) set the lever (3) in turning it slightly on the shaft (4) to a position in which the roller (5) of the lever (3) is in contact with the slanting surface (6) of the lever (7) and is about 0.1 mm distant from the flat surface (8) of the lever.

  • Page 15: Feeding Mechanism Of The Needle Feed And Of The Lower Feed Wheel

    All manuals and user guides at all-guides.com 3.6 Feeding mechanism of the needle feed and of the lower feed wheel 3.6.1 Description The feeding mechanism is formed by the leverage (1) which is driven from the main shaft through the eccentric with connection rod (2). The feeding motion is transmitted by the shaft (3) on the clutch of the bottom feed (7).

  • Page 16: Forward And Rearward Stitch Length Distribution (Fine)

    All manuals and user guides at all-guides.com 3.6.2.3b Forward and rearward stitch length distribution (fine) When setting the maximum length of the stitch, the forward and the rearward stitch length must be equal with the maximum error of ± 5 %. This setting can be done only after having set the needle bar holder in the direction of sewing (par.

  • Page 17: Lower Feed Wheel

    All manuals and user guides at all-guides.com 3.6.3 Lower feed wheel 3.6.3.1 Feeding clutches 3.6.3.1.1 Description The feeding clutch is formed by the clutch cover (1) driven from the connecting bar (2), by the clutch star (4) driven from the connecting rod (3) and by the carrier plate (5) firmly connected with the shaft (6).

  • Page 18: Setting Of The Lower Eccentric

    All manuals and user guides at all-guides.com 3.6.3.1.3 Setting of the lower eccentric The rotation of the eccentric (3) must be delayed in phase by 1/4 revolution against the rotation of the eccentric of the stitch length. This corresponds to the angle of 244° on the handwheel (1), when the setting pin (4) is put into the eccentric (3) which is in contact with the indented belt (5).

  • Page 19: Height Setting Of The Feeder

    All manuals and user guides at all-guides.com 3.6.3.2 Wheel feeder and its post 3.6.3.2.1 Height setting of the feeder and tension- ing of the chain The wheel feeder (1) is to be set in such a way that the points of its teeth overtop the throat plate insert by „X“= 0.3 to 0.7 mm.

  • Page 20: Feeding Mechanism Of The Top Roller

    All manuals and user guides at all-guides.com 3.7 Feeding mechanism of the top roller 3.7.1 Description The starting movement for the drive of the top roller feeder is the bottom feeding shaft. From this shaft, the movement is transmitted by the indented belt (1) onto the top feeding shaft (2).

  • Page 21: Setting The Tensioning Roller

    All manuals and user guides at all-guides.com 3.7.4 Setting the tensioning roller The tensioning roller of the indented belt of the top feeding is mounted in a rotary way on the bedplate. The belt must be ten-sioned as needed in such a way that there is ensured the correct function of the transmission.

  • Page 22: Top Roller

    All manuals and user guides at all-guides.com 3.7.6 Top roller 3.7.6.1 Selection of the top roller diameter The machine can be supplied with two types of top roller, namely with the diameter of 25 mm and with the diameter of 35 mm.

  • Page 23: Replacement Of The Top Roller

    All manuals and user guides at all-guides.com 3.7.6.4 Replacement of the top roller When replacing the top roller, proceed as follows: Caution! Danger of injury! Switch off the main switch! Before starting the setting operation, wait until the motor stops! - Unscrew the screw (1).

  • Page 24: Bobbin Winder

    All manuals and user guides at all-guides.com 3.9 Bobbin winder 3.9.1 Description The winder (bobbin winder) winds a reserve of the hook thread. It is driven by a spring-mounted friction gear, which stops after having filled the bobbin. An ideal winding is attained with a sufficient pretension of the thread obtained on the thread guide (4) and with 1 mm under the diameter of the bobbin.

  • Page 25: Safety Clutch

    All manuals and user guides at all-guides.com 3.10 Safety clutch 3.10.1 Description The machine is provided with a safety clutch which enables the turning through of the lower belt wheel (1) on the hub of the lower shaft (2), when the hook is blocked. This blocking occurs due to the penetration of thread into the hook path.

  • Page 26: V-Belt, Motor - Head

    All manuals and user guides at all-guides.com 3.11.2 Replacing the indented belt To observe: in machines with Mini-stop first remove the driving toothed belt as instructed in par. 3.13. When replacing the indented belt, the mutual position of the pulleys (4 and 5) should be maintained. Caution! Danger of injury! Switch off the main switch! Before starting the setting operation, wait until the motor stops!

  • Page 27: Lubrication

    All manuals and user guides at all-guides.com 3.14 Lubrication 3.14.1 Description From the lubricating tank (1) there issue three suction wicks. The wick (2) lubricates the pin of the thread mechanism, the wick (3) lubricates the needle mechanism and the wick (4) lubricates the stitch length mechanism.

  • Page 28: Thread Trimming

    All manuals and user guides at all-guides.com 4. Thread trimming 4.1 Description of the trimming mechanism During the trimming cycle, the moving trimming knife (1), in an opportune moment, hooks up the sewing threads and pulls them in the sense of the arrow (A) against the fixed knife (2) until the threads are trimmed.

  • Page 29: Setting The Fork

    All manuals and user guides at all-guides.com 4.4 Setting the fork In the starting position of rest of the trimming mechanism, when the holder (1) is in contact with the bracket (2), the axis of the fork (3) must intersect the axis of the shaft (4). Caution! Danger of injury! Switch off the main switch! Before starting the setting operation, wait until the motor stops!

  • Page 30: Setting The Retaining Spring Of The Hook Thread

    All manuals and user guides at all-guides.com 4.7 Setting the retaining spring of the hook thread The retaining spring (1) holds the hook thread after having performed the trimming. It is to be set in such a way that the force necessary for pulling out the thread from the retaining spring (1) is approximately equal to the force necessary for pulling out the thread from the hook.

  • Page 31: Setting The Electromagnet Current

    All manuals and user guides at all-guides.com 5.3 Setting the electromagnet current The time response of the current of electromag. has 2 phases: - initial switching on (0,2 ÷ 0,5 s) - the maximum force - maintaining (when keying) It is necessary to set max. 40 % of keying (see instructions for use of the stopmotor).

  • Page 32: Connecting The Electric Elements On The Machine Head

    All manuals and user guides at all-guides.com 7. Connecting the electric elements on the machine head The connection of the electric elements (electromagnets, backtacking, presser foot lifting, thread trimming, loosening of the tensioner and push-buttons) is made by means of a switchboard (1) fixed with its supporting plate (2) on the rear side of the head by means of two distance screws (3) (In the Fig., these electric elements are disconnected).

  • Page 33: Maintenance (Table Of Operations)

    All manuals and user guides at all-guides.com Maintenance Caution! Danger of injury! The maintenance operations should be performed only with the machine switched off and with the motor stopped! In the following table there are given the operations which should be performed and the respective time intervals between the individual operations.

  • Page 34: Table Of Setting The Machine According To The Sewing Category

    All manuals and user guides at all-guides.com 10.2 Table of setting the machine according to the sewing category 1280i - 6XX - X Commercial designation of the machine Standard sewing parameters Standard machine setting Sewing category Seam Thick- Number Stitch Label Needle Sewing...

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