DURKOPP ADLER 381 Operating Instructions Manual
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DURKOPP ADLER 381 Operating Instructions Manual

DURKOPP ADLER 381 Operating Instructions Manual

Preface and general safety information
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Contents
Preface and General Safety Information
Part 1: Operating Instructions Cl. 381 - 382
1.
2.
Proper Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Subclasses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.
4.
Optional Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.
6.
6.1
Threading the Needle Thread . . . . . . . . . . . . . . . . . . . . . . .
6.2
Setting the Needle Thread Tension . . . . . . . . . . . . . . . . . . . .
6.3
Opening the Needle Thread Tension . . . . . . . . . . . . . . . . . . .
6.4
Setting the Tension Regulator . . . . . . . . . . . . . . . . . . . . . . .
6.5
6.6
Inserting the Underthread Bobbin . . . . . . . . . . . . . . . . . . . . .
6.7
Setting the Underthread Tension . . . . . . . . . . . . . . . . . . . . .
6.8
Inserting and Changing Needles . . . . . . . . . . . . . . . . . . . . .
6.9
Lifting the Sewing Feet . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.10
6.11
Setting the Sewing Foot Pressure . . . . . . . . . . . . . . . . . . . . .
6.12
6.13
Switching the Needle Bars On and Off . . . . . . . . . . . . . . . . . .
6.14
Roller Top Feed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7.
7.1
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7.2
Keys on the Control Panel . . . . . . . . . . . . . . . . . . . . . . . . .
7.3
Changing the Parameter Values . . . . . . . . . . . . . . . . . . . . . .
7.4
"Operator Level" Parameter List . . . . . . . . . . . . . . . . . . . . . .
7.5
Key Bank on the Machine Arm . . . . . . . . . . . . . . . . . . . . . . .
8.
Sewing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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Summary of Contents for DURKOPP ADLER 381

  • Page 1: Table Of Contents

    Home Contents Page: Preface and General Safety Information Part 1: Operating Instructions Cl. 381 - 382 Product Description ......Proper Use .
  • Page 2 Maintenance Cleaning and Inspection ......Oil Lubrication ....... Optional Equipment 10.1 Thread Wiper .

  • Page 3: Product Description

    1. Product Description The DÜRKOPP ADLER 381 - 382 are special sewing machines for first-class two-needle decorative seams. Two-needle flat bed double-saddle-stitch machine with bottom and needle feed. The needles can be turned on and off. Class 382 additionally with roller top feed. Slit presser bar (international standard), thus allowing normal commercial sewing devices to be used.

  • Page 4: Subclasses

    3. Subclasses Two-needle flat bed double-saddle-stitch machine with switchable Cl. 381 - 160161: needles, bottom and needle feed, electromagnetic thread trimmer. as Cl. 381 - 160161, additionally with electropneumatic automatic Cl. 381 - 160162: bartacking and electropneumatic sewing foot lift. Cl.

  • Page 5: Technical Data

    5. Technical Data Work station relevant emission value Noise level: to DIN 45635-48-A-1-KL2 Lc = __ dB (A) Cl. 381 - 160161 Stitch length: __ mm Number of stitches: 3 000 [min-1] Material: ___________________ Cl. 381 - 160162 Lc = ___ dB (A) Stitch length: __ mm Number of stitches: 3 000 [min-1]...
  • Page 6 Needle system: Needle thickness (depending on E no.): [Nm] (70 to 110) Seam width / needle clearance: [mm] 4.8 11.9 (25.4) (depending on E no.) Max. sewing thread thicknesses: - Synthetic sewing thread [Nm] 30/2 - Core spun thread [Nm] 30/3 Max.

  • Page 7: Operation

    6. Operation 6.1 Threading the Needle Thread Caution Risk of Injury ! Turn the main switch off ! Thread the needle thread only with the sewing machine turned off. – Place the yarn spools on the yarn stand as shown in the illustration and guide the needle and underthreads through the take-off arms.
  • Page 8 Illus. a: Correct thread interlacing in the middle of the material Illus. b: Needle thread tension too low Underthread tension too high Illus. c: Needle thread tension too high Underthread tension too low...

  • Page 9: Setting The Needle Thread Tension

    6.2 Setting the Needle Thread Tension Main tension 3 The main tension 3 is to be set as low as possible. The interlacing of the threads should lie in the middle of the material (see Illus. a ). Too high thread tensions can lead to unwanted bunching in thin material and thread breakage.

  • Page 10: Setting The Tension Regulator

    6.4 Setting the Tension Regulator The needle thread quantity required for the hook is adjusted with the tension regulator 2. The setting is dependent on the following factors: - Material thickness - Yarn characteristics - Stitch length A prescisely set tension regulator assures an optimal sewing result at the lowest possible needle thread tension.

  • Page 11: Winding The Underthread

    6.5 Winding the Underthread – Thread the underthread as shown in the illustrations. – Place the bobbin on the winder shaft 2. – Wind the underthread counterclockwise approx. 5x around the bobbin core. – Tear off the underthread at thread clamp 3. –...

  • Page 12: Inserting The Underthread Bobbin

    6.6 Inserting the Underthread Bobbin Caution Risk of Injury ! Turn the main switch off. Change the underthread bobbins only with the sewing machine turned off. Removing the empty underthread bobbin – Bring the needle bars into the high position. –...

  • Page 13: Setting The Underthread Tension

    6.7 Setting the Underthread Tension Caution Risk of Injury ! Turn the main switch off. Set the underthread tension only with the sewing machine turned off. – Take out the bobbin case with bobbin. – To lift the bobbin case reach under the nose 3. –...

  • Page 14: Inserting And Changing Needles

    6.8 Inserting and Changing Needles Caution Risk of Injury ! Turn the main switch off. Change needles only with the sewing machine turned off. – Bring the needle bars into the high position. – Loosen screws 1 (right or left, 1.5 Allan key in the accessories pack). –...

  • Page 15: Lifting The Sewing Feet

    6.9 Lifting the Sewing Feet The sewing feet can be raised mechanically or pneumatically. Depending on the equipment of the special sewing machine, the lifting occurs through operation of the knee lever 2 or the stepping back on the pedal. Mechanical sewing foot lift (knee lever 2) –...

  • Page 16: Setting The Sewing Foot Pressure

    6.11 Setting the Sewing Foot Pressure The desired sewing foot pressure is set with sleeve 1. – Increase sewing foot pressure = Turn sleeve 1 clockwise. Decrease sewing foot pressure = Turn sleeve 1 counterclockwise. The setting range can be changed by turning the bolt 2. –...

  • Page 17: Stitch Length On Sewing Machines Without Automatic Bartacking

    6.12 Stitch Length on Sewing Machines without Automatic Bartacking The desired stitch length is set with the knurled nut 1 in the stitch regulator lever. It is the same for forward and reverse sewing. Changing the stitch length during sewing. With the stitch regulator lever 2 the stitch length can be continuously changed during sewing between the set forward and reverse stitch length.

  • Page 18: Stitch Length On Sewing Machines With Automatic Bartacking

    6.12.1 Stitch Length on Sewing Machines with Automatic Bartacking Sewing machines with automatic bartacking ( Subclass 381-160162 and 382-160162 ) On sewing machines with automatic bartacking the stitch lengths are set with the knurled nut 3 and the block 1. The knurled nut in the stitch regulator lever (see pos.

  • Page 19: Switching The Needle Bars On And Off

    6.13 Turning the Needle Bars On and Off The needle bars can be turned off with lever 1. The position of lever 1 determines which needles are working: – Lever 1 in the left position. Left needle bar turned off (right needle bar is working). –...

  • Page 20: Roller Top Feed

    6.14 Roller Top Feed The feed distance of the roller top feed is a max. 7 mm. It can be set differently than the bottom feed with the setting dial 2. The feed roller 3 is automatically lowered after 10 stitches. The number of stitches prior to the automatic lowering of the feed roller can be set with parameter F-186 (technician level).

  • Page 21: Controls And Control Panel

    7. Controls and Control Panel ATTENTION ! These Operating Instructions list only those functions of the keys and the changes of the parameters to be conducted by the operator. Please find the comprehensive description of the controls in the enclosed current Operating Instructions of the motor manufacturer.

  • Page 22: Keys On The Control Panel

    7.2 Keys on the Control Panel Function Settings Accessing or exiting the programming mode Confirming a change in a parameter value Increasing the shown parameter value Decreasing the shown parameter value Stitch counting ON / OFF Programming / Working through the seam runs Function key (programmable) Base position of the needle UP / DOWN...

  • Page 23: Changing The Parameter Values

    7.3 Changing Parameter Values The changing of parameter values at the operator level occurs via the four green keys ("P", "E", "+", "-") under the display. In the parameter list on the next page are listed all parameters which can be changed at the operator level.

  • Page 24: Operator Level" Parameter List

    7.4 "Operator Level" Parameter List: Parameter Function Setting Max. Min. Ex works 000 Arv Beginning bartack stitches-forward 001 Arr Beginning bartack stitches-reverse 002 Err End bartack stitches-reverse 003 Erv End bartack stitches-forward 004 LS Light barrier compensation stitches * 005 LSF Number of stitches of the light barrier filter for knit goods * 006 LSn...

  • Page 25: Key Bank On The Machine Arm

    7.5 Key Bank on the Machine Arm The assignment of the keys of the key bank on the machine arm is dependent on the class. Subclass 381 - 160161 Subclass 382 - 160162 381 - 160162 Function Display: " Sewing Drive Turned On " Caution Risk of Injury ! With the sewing drive turned on (LED 1 is lit) the following work may not be conducted:...

  • Page 26: Sewing

    8. Sewing The description of sewing assumes the following preconditions: – The following functions are set at the control panel: Beginning bartack: ON End bartack: ON Sewing foot position before and after trimming: Needle position before trimming: LOW (position 1) –...
  • Page 27 Sewing procedure Operation / Remarks In the seam middle Interrupting the sewing - Release the pedal (rest position) . procedure The machine stops in the first position (needle down). The sewing feet are down. Continuing the sewing - Step forward on the pedal. procedure The machine sews at the speed determined (after release of the pedal)
  • Page 28 9. Maintenance Caution Risk of Injury ! Turn the main switch off! The maintenance of the sewing machine may only occur when it is turned off. The maintenance work must occur at the latest as per the maintenance intervals listed in the tables (see column "Operating Hours").
  • Page 29 Maintenance work Remarks Operating to be conducted hours Machine head - Remove sewing dust, Areas to be particularly cleaned: thread and cutting residue. - Underside of the needle plate - Feed dog ridges - Area around the hook - Bobbin case - Thread trimmer - Area around the needles - Clean the oil baffle...

  • Page 31: Oil Lubrication

    9.2 Oil Lubrication Caution Risk of Injury ! Oil can cause skin rashes. Avoid longer skin contact. After contact wash yourself thoroughly. ATTENTION ! The handling and disposal of mineral oils is subject to legal constraints. Deliver used oil to an authorized reception point. Protect your environment.
  • Page 32 10. Optional Equipment 10.1 Thread Wiper If, at the beginning of a seam, the needle thread end is to be drawn through on the underside of the material, then it should not get clamped in between the sewing foot and the material. The thread wiper assures that the needle thread end hangs out of the needle eye loosely.

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