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Instructions for service
1130i - 5
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
www.promelectroavtomat.ru
Edition: 08/2006
Printed in Czech Republic
S735 000706

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Summary of Contents for Dürkopp Adler 1130i-5

  • Page 1 Instructions for service 1130i - 5 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 www.promelectroavtomat.ru Edition: 08/2006 Printed in Czech Republic S735 000706...
  • Page 2: Table Of Contents

    CONTENTS: General safety instructions ................................1 Introduction ..................................1 Head of the sewing machine .............................. 2 3. 1 Hook and 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 Angular setting of the hook (timing) 3.1.5...
  • Page 3 3.11 V-belt, motor - head ................................17 3.11.1 Tensioning 3.11.2 Replacing the V-Belt 3.12 Driving toothed belt ................................17 3.12.1 To exchange the driving toothed belt 3.13 Lubrication ....................................18 3.13.1 Description 3.13.2 Refilling oil 3.13.3 Multiple oil use Thread trimming ....................................
  • Page 4: General Safety Instructions

    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 in full knowledge of the instruction book and operated by persons with appropriate training.
  • Page 5: Head Of The Sewing Machine

    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 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 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

    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 out from the bedplate (7).
  • Page 9: Angular Setting The Pin Of The Thread Mechanism

    3.2.4 Angular setting the pin of the thread mechanism The hinged pin (2) of the connecting rod (3) can be set in two positions: for stitching category 100, 200, 300 - the groove of the pin (2) is in position (turned) as shown in Fig. “A” - for stitching category 400 - the groove of the pin (2) is in position (turned) as shown in Fig.
  • Page 10: Throat Plate, Feed Dog

    3.3 Throat plate, feed dog 3.3.1 Description The throat plate (1) is universal for all categories of sewing. Four feed-dog types, differing from each other by the width of the needle hole andby the teeth size as required by the respective sewing category, are available (see tab.
  • Page 11: Setting The Tensioning Mechanism Of The Main Tensioners

    3.4.3 Setting the tensioning mechanism of the main tensioners In the rest position of the tensioners, when pushing the plate of the tensioners on the spot “A” 3.4.1, this plate must have the socalled dead travel of about 0,5 mm. At this lifting, the tension discs of the tensioners must not be relieved.
  • Page 12: Setting The Thread Limiter

    3.4.5 Setting the thread limiter The thread limiter is to be set in such a way that, when sewing and passing the thread through the most distant point of the hook, the spring (2) shifts by about 1/4 to 1/2 length of its total length.
  • Page 13: Stitch Length Mechanism

    3.5.2 Stitch length mechanism 3.5.2.1 Setting of the horizontal component of the feeder movement (setting of the upper feeding eccentric) The feeding eccentric (1) must be angularly set in such a way, so that the feeding movement for the horizontal feeding component is delayed in phase against the needle movement.
  • Page 14 3.5.2.3 Setting of the feeder position against the throat plate The correct position of the feeder is such when the feeder symmetrically moves in the slot of the throat plate in forward and backward direction and above and below the throat plate as well.
  • Page 15 3.5.2.5 Feeder replacement The bottom feeder replacement (change of the stitching category according to the machine setting - see table 11.2 – machine setting – feeder). Caution! Danger of injury Switch off the main switch! Before starting the setting operation, wait until the motor stops! - Unscrew the screws (1) and remove the throat plate.
  • Page 16 3.5.2.8 Setting the control knob (including the stitch length limitation) The control knob (1) is to be set up in such a way that, when turning it in counterclockwise sense up to the stop, the maximum stitch length valid for the given sewing category is attained (cat.
  • Page 17: Presser Foot

    Presser foot Together with the machine, a flat presser foot is delivered. This presser foot is suitable for all sewing categories. Check the given setting in the lower position of the drop feed dog (feed dog under the throat plate). The presser foot must bear in this position of the feed dog against the throat plate without any play.
  • Page 18: Bobbin Winder

    Bobbin winder 3.8.1 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 19: Safety Clutch

    3.9 Safety clutch 3.9.1 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. With current running, this clutch should not disengage during the normal running.
  • Page 20 3.10.2 Replacing the indented belt To observe: in machines with Mini-stop first remove the driving toothed belt as instructed in par. 3.12. 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! - Remove the handwheel, the belt guard and the V-belt.
  • Page 21 3.13 Lubrication 3.13.1 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. The superfluous oil from the needle and thread mechanisms is sucked off by the wick (5).
  • Page 22 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 23 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! - Shift the shaft (5), until the holder (1) strikes the bracket (2).
  • Page 24 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 25 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 26 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 27 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 28 10.2 Table of setting the machine according to the sewing category 1130i - 5XX - X Commercial designation of the machine Sewing Standard sewing parameters Standard machine setting category Thickness Number Stitch Label Needle Sewing Feeder Thread tension Splice of one of mate- length number size...

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