Adler 382, 381 Operating Instruction

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Preface and General Safety Information

Part 1: Operat ing Instruc tions Cl. 381 - 382

1. Product Description

2. Proper Use

3. Subclasses

4. Optional Equipment

5. Technical Data

6. Operation

6.1 Threading the Needle Thread . . . . . . . . . . . . . . . . . . . . . . . 9

6.2 Setting the Needle Thread T ension . . . . . . . . . . . . . . . . . . . . 11

6.3 Opening the Ne edle Threa d Tension . . . . . . . . . . . . . . . . . . . 11

6.4 Setting the Tension Regulator . . . . . . . . . . . . . . . . . . . . . . . 12

6.5 Winding the Underthread . . . . . . . . . . . . . . . . . . . . . . . . . 13

6.6 Inserting the Underthread B obbin . . . . . . . . . . . . . . . . . . . . . 14

6.7 Setting the Undert hread Tension . . . . . . . . . . . . . . . . . . . . . 15

6.8 Inserting and Changing Needles . . . . . . . . . . . . . . . . . . . . . 16

6.9 Lifting the Sewing Feet . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

6.1 0 Arresting the Sewing Feet in the High Position . . . . . . . . . . . . . . 17

6.11 Set ting the Sewing Foot Pressure . . . . . . . . . . . . . . . . . . . . . 18

6.12 Stitch Length on Sewing Machines without Automatic Bartacking . . . 19

6.12.1 Stitch Length on Sewing Machines with Automatic Bartacking . . . . . 20

6.1 3 Switching the Need le Bars On a nd Off . . . . . . . . . . . . . . . . . . 21

6.1 4 Roller Top Fee d . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

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7. Controls and Control Panel

7.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

7.2 Keys on the Control Panel . . . . . . . . . . . . . . . . . . . . . . . . . 24

7.3 Changing the Parameter Values . . . . . . . . . . . . . . . . . . . . . . 25

7.4 "Op erator Level" Parameter List . . . . . . . . . . . . . . . . . . . . . . 2 6

7.5 Key Bank on the Machine Arm . . . . . . . . . . . . . . . . . . . . . . . 27

8. Sewing

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

9. Maintenance

9.1 Cleaning a nd Inspectio n . . . . . . . . . . . . . . . . . . . . . . . . . 30

9.2 Oil Lubrication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

10. Optional Equipment

10 .1 Thr ead Wiper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

1. Product Description

The

DÜRKOPP ADLER 381 - 382

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

•

Slit presser bar (international standard), thus allowing normal commercial sewing

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devices to be used. Existing sewing devices of class 380 can be used.

•

Central oil wick lubrication with visible reserve in the arm.

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Manual hook lubrication. Integrated w i nder.

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Integrate d adjustment di sk.

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additionally with roller top feed.

382

are special s ewing machines for first-class

2. Proper Use

The

381 - 382

sewing material. Such material is, as a rule, fabric composed of textile fibers or leather. These sewing materials are used in the garment and furniture industries.

Furthermore, it may be possible to also execute so-called technical seams with this special sewing machine. Here, however, the operator ( pleased to hel p) must make an ev al uation of the po ssible dangers sinc e such applications are, on the one hand , relatively rare an d, on the other, their variety is immense. Depending on the results of this evaluation it may be necessary to adopt appropriate s af ety measures.

In general, only dry material may be worked with this special machine. The material may not be thicker than 8 mm whe n i t is pressed together by the lowere d sewing feet. The material may contain no hard objects because otherwise the sewing unit could only be allowed to be operated with eye protection.

Such eye protection is not available at this time. The seam is generally made with sewing yarns of textile fibers with di m ensions up to

30/2 Nm (synt hetic threads) or 30/3 Nm (core spun threads). Those wishing to use other threads must also first evaluate the dangers arising herefrom and, if necassary, take safety measures.

This special sewing machine may o nl y be installed and operated in dry and clean areas. If the sewing unit is employed in other areas, which are not dry and clean, other, to be agreed upon, measures may become necessary (see EN 60204-3-1: 1990).

We, as a manufacturer of industrial sewing machines, assume that, at a minimum, semi-skilled operating personel work on our products so that all normal operations and, where applicable, their dangers can be presumed to be known.

are special s ewing machines whi ch can properly be used for sewing lig ht

DÜRKOPP ADLER AG

would be

3. Subclasses

Cl. 381 - 160161:

Cl. 381 - 160162:

Cl. 382 - 160162

Two-needle flat bed double-saddle-stitch machine with switc hable needles, bottom and needle feed , electromagnetic t hread trimmer.

as Cl. 381 - 160161, additionally with electropneumatic automatic bartacking and electropneumatic sewing foot li f t.

: as Cl. 381 - 160162, additionally with roller top feed

4. Optional Equipment

Order no. Optional Equipment 9822 510001

OAPP 1241 0798 500088

9780 000108

0797 003031

Sewing light (halogen) WALDMANN, with 12V/20W lamp, to be attached to the sewing machine head.

Sewing light m ounting kit, for 98 22 510001. Sewing light transformer

For 230V, with mains cable, without switch, for sewing lights 9822 510001.

Maintenance unit WE 8 For pneumatic optional equipment.

Pneumatic connection package For the pneumatic connection of frames with maintenance unit and pneumatic optional equipme nt. Consisting of connection hose (length 5 m, diameter 9 mm), hose nozzles, hose clamps, coupling socket and coupling plug.

0381 590014 0382 590014 N900 001941 N900 011038 N900 012015 N900 020039

Electromagnetic thread wiper for Cl. 381 Electromagnetic thread wiper for Cl. 382 Swing rail for apparatus Edge stop-ri g ht, on base plate, fixed Edge stop-ri g ht, on base plate, swing-down Edge stop-right, on the sewing machine head, swing-up

5. T echnical Data

Noise level:

Cl. 381 - 160161

Cl. 381 - 160162

Cl. 382 - 160162

Work station relevant emission value to DIN 45635-48-A-1-KL2

Lc = __ dB (A) Stitch length: __ mm Number of st i tches: 3 000 [ m i n-1] Material: ___________________

Lc = ___ dB (A) Stitch length: __ mm Number of st i tches: 3 000 [ m i n-1] Material: ___ _____________

Lc = __ dB (A) Stitch length: __ mm Number of st i tches: 3 000 [ m i n-1] Material: ___ _____________

The values were not available at press time !

Needle system: 797 Nee dle thickness (depending on E n o.): [ Nm] (70 to 110) 90 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. number of stitches: [min-1] 3 000 * Max. stitch length:

- Forward: [mm] (2 400 stitches/min) 6 *

- Reverse: [mm] (2 400 stitches/min) 6 * Max. sewing foot st roke: [mm ] 10 (Cl. 381)

Feed dog stroke: [mm] (above the needle plate) 1.1

Max. opening under the sewing feet:

- Sewing [mm] 8

- Raised [mm] 10 Operating press ure: [bar] 6 Air consumption per work cycle: approx. [NL] 0.02 Design volt age: 1 x 230 V, 50 / 60 Hz

Dimensions (H x W x D): [mm] 1750 x 1060 x 500 (depending on table top) 1750 x 1060 x 600

Work height (ex works): [mm] 790 Weight (only machi ne head): approx.[kg] 40

* At max. stitch length the number of stitches must be reduced to 2 400 sti t ches/min.

9 (C l. 382)

1750 x 1250 x 900

6. Operati on

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.

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Place the yarn spools on the yarn stand as shown in the illustration and guide the needle and underthreads through the take-off arms. The take-off arms 1 and 3 must lie vertically above the yarn spools. The take-off arms 2 and 4 are to be set as per the dra wi ng. They prevent t he two needle threads from hitting each other.

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Thread the needle thread as per the drawing on

page 10

variocontrol 720

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

6.2 Setting the Needle Thread Ten sion

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 i n thin material and thread breakage.

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Set the main tension 3 so that a uniform stitch pattern is achieved.

Supplimentary tension 2

The switchabl e supplimentary t ension 2 serves for t he quick change of t he needle thread tension, e.g. at seam thickenings.

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Set the supplimentary tension 2 lower than the main tension 3.

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Turn the supplime ntary tension 2 on or off with lever 1. 0 = Supplimentary tension 2 is turned off. 1 = Supplimentary tension 2 is turned on.

6.3 Opening the Needle Thread T ension

Automatic

The needle thread tension is automatically opened during thread trimming.

Note

The timing of the thread tension o pening can be set wit h the parameters F-191 and F-192 (technician level).

Manual

The main and supplimentary tensions can be opened by hand through pressure on A.

6.4 Setting the T ension Regu lator

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

A prescisely set tensi on regulator assures an optimal sewi ng result at the lowest possible needle thread tension. With a correct setting, the needle thread loop must glide over the thickest point of the hook with little tension.

In position " 1 " of the tension regulator the maximum thread quantity is released. In position " 5 " of the tension regulator the minimum thread quan t i ty is released.

- Yarn characteristics

- Stitch length

Caution Risk of Injury !

Set tension regular 2 only with the sewing machine turned

off.

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Loosen screws 1 and 3.

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Alter the position of the tension regulator 2. The scale above the tension regu l ator serves as a set ting aid.

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Tighten screws 1 and 3.

Setting note:

For a correct setting of the tension regulator 2 the following condition must be met:

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When the greatest thread quantity is required, the thread controller spring 4 must be pulled appr ox. 0.5 mm up out of it s upper end position. This is the case when the needle thread loop passes the maximum diameter of t he hook.

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