Adler 767 Instruction Manual

767

Spezialnähmaschine

Bedienanleitung

Operating instructions

Instructions d'emploi

Instrucciones de uso

Instrucções de operação

Istruzioni per l’uso

Postfach 17 03 51, D-33703 Bielefeld • Potsdamer Straße 190, D-33719 Bielefeld T elefon +49 (0) 5 21 / 9 25- 00 • Telefax +49 (0) 5 21 / 9 25 24 35 • www.duerkopp-adler .com

Ausg./Edition: 08/2005 Printed in Federal Republic of Germany Teile-Nr.: 0791 767742

Contents Page:

Preface und general safety instructions

Part 1: Operating manual Cl. 767

1. Product description .............................. 5

2. Designated use................................. 5

3. Subclasses

3.1 Optional equipment ............................... 6

4. Technical data

4.1 Subclasstechnicaldata............................ 8

5. Operation

5.1 Upper thread ................................... 10

5.2 Adjusting the thread regulator ........................ 11

5.3 Loserthread................................... 13

5.4 Changing the needle .............................. 15

5.5 Liftingsewingfeet ............................... 15

5.6 Securingthesewingfeet............................ 15

5.7 Sewing-footstroke ............................... 17

5.8 Sewing-footpressure.............................. 18

5.9 Stitch length ................................... 18

6. Keys on sewing arm.............................. 19

7. Control and operating panel

7.1 V810 Operating panel key ........................... 21

7.2 V820 Operating panel key ........................... 22

7.3 Changing parameter values .......................... 24

7.4 Directparameternumberselection...................... 24

7.5 Operator-level parameter list for EFKA controls DA82GA and 6F82FA . 25

8. Sewing ...................................... 26

9. Maintenance

9.1 Cleaning and inspection ............................ 29

9.2 Lubrication .................................... 31

Contents Page:

10. Optional equipment

10.1 Residual-thread monitor RFW 13-3/RFW 13-6/RFW 13-8/RFW 13-9 . 32

10.2 2nd Stitch length STLS 13 - 2 ........................ 34

10.3 Electro-pneumatic rapid stroke adjustment HP 13 - 7 .......... 36

10.4 Upper and lower conveyor rollers SP 470 ................. 37

10.5 AutomaticloweringWTA13-2........................ 38

10.6 Additional tension FS 13 - 1 .......................... 39

10.7 Seamcenterguide............................... 41

10.8 SkipStitchDevice(SSD)FSE13-1/2.................... 43

11. Short thread trimmer

11.1 CheckEPROM-Version ............................ 45

11.2 Position of the thread-pulling knife and the counter-knife ........ 45

11.3 Adjustthethreadcuttingstitchbeforethreadcutting........... 45

11.4 Thread clamp (Thread feeding device) ................... 46

11.5 Errors,CauseandRemedy.......................... 46

The illustrations in this Operating manual relate to various subclasses of the special sewing machine !

Please bear in mind that your special sewing machine may be different from the machine illustrated !

1. Product description

The DÜRKOPP ADLER 767 is a special sewing machine with universal applications.

Flat-bed double-stitch sewing machine with lower conveyor, needle transport and

alternating upper foot conveyor.

Subclasses available: one or two needles, with or without edge cutter and with or

without thread trimmer beneath the stitch plate. Single-needle machines are convertible to double-needle machines. (not 767-AE-73 / 767-AE-5-73)

All subclasses have device racks in the base plate for the rapid replacement of

various devices. (not 767-AE-73 / 767-AE-5-73)

Maximum clearance beneath lifted sewing feet: 16 mm

(with -AE and -LG max. 13 mm).

Stroke of alternating sewing feet adjustable with adjusting wheel by up to 7 mm.

Automatic non-pressurised oil-circulating lubrication with sight glasses for oil level

and oil circulation. Integrated hook lubrication.

Large, two-piece vertical hook with spool-housing lifting device.

Oversized, two-piece vertical hook with spool-housing lifting device.

A safety coupling prevents the hook from being displaced or damaged if the thread

jams in the hook track.

2. Designated use

The designated use of the 767 sewing machine is sewing light to medium-heavy materials. Such material is generally made of textile fibres, but it may also be leather. It is used in the clothing industry and for domestic and motor-vehicle upholstery.

This sewing machine can also be used to produce so-called technical seams. In this case, however, the operator must assess the possible dangers which may arise (with which DÜRKOPP ADLER AG would be happy to assist), since such applications are on the one hand relatively unusual and, on the other, they are so varied that no single set of criteria can cover them all. The outcome of this assessment may require appropriate safety measures to be taken.

Generally only dry material may be sewn with this machine. The material may be no thicker than 10 mm when compressed by the lowered sewing feet. The material may not contain any hard objects, since if it does the machine may not be operated without an eye-protection device. No such device is c urrently available.

The seam is generally produced with textile-fibre sewing thread of gauge 11/3 Ne 11/3 Nm (synthetic) or 11/4 Nm (covering yarn). Before using any other thread the possible dangers arising must be assessed and appropriate safety measures taken if necessary.

This sewing machine may be set up and operated only in dry, well-maintained premises. If the sewing machine is used in other premises which are not dry and well-maintained it may be necessary to take further precautions (which should be agreed in advance - see EN 60204-31: 1999).

As manufacturers of industrial machinery we proceed on the assumption that personnel who work on our products will have received training at least sufficient to acquaint them with all normal operations and with any hazards which these may involve.

(cotton),

3. Subclasses

The following table lists the features of the various subclasses.

Subclass Material Double- Hook Thread Edge Edger

-73 M - - - - -

-AE-73 M - x - x x

-AE-5-73 M - x - x x

-FA-73 M - - x - -

-LG-73 M - x - - x

- FA - 273 M x - x - -

- FA S - 473 ***) M x - x - -

- 373 M - - - - -

- FA - 373 *) M - - x - -

-KFA-373**) M - - x - -

- KFA - 573 ****) M - - x - -

- FAS - 373 ***) M - - x - -

- FAS - 573 ***) M - - x - -

- VF - 373 M - x x x -

- VF - 573 M - x x x -

Legend: M = medium-heavy material / x = standard / - = not available

Needle Left Trimmer Cutter

3.1 Optional equipment

The following optional equipment can be supplied for the 767:

RAP 13-2 *) Electro-pneumatic stitch locking and sewing-foot lift, pedal-operated. RAP 13-4 Electro-pneumatic stitch locking and sewing-foot lift, pedal-operated.

RAP 13-6 **) Electro-pneumatic stitch locking and sewing-foot lift, pedal-operated. RAP 13-6 ****) Electro-pneumatic stitch locking and sewing-foot lift, pedal-operated. RAP 13-7 ***) Electro-pneumatic stitch locking and sewing-foot lift, pedal-operated.

FLP 13-2 Electro-pneumatic sewing-foot lift, pedal-operated. NK 13-1 Pneumatic needle cooling, pedal-operated.

NP 13-4 Electro-pneumatic needle-retraction device for maximum clearance

HP 13-7****) Electro-pneumatic rapid stroke adjustment by knee switch. SP 470 Roller feed device, with adjustable upper and lower conveyor rollers. WTA 13-2 Automatic lowering for upper conveyor roller. LR 13-4 Light barrier for automatic triggering of RAP at end of thread. KNS 2 Knee switch for triggering manual reverse sewing. WE 3 Maintenance unit.

WE 6 Maintenance unit for pneumatic optional equipment. RFW 13-3 Residual-thread monitor bobbin thread.

RFW 13-8 Residual-thread monitor bobbin thread (KFA). RFW 13-9 Residual-thread monitor bobbin thread (oversized hook).

STLS 13-2 2nd Stitch length. FS 13-1 Additional tension. N800 005611 Seam center guide. *) **) ***) ****) = Integr ated for th e subclasse s

beneath sewing feet when lifted.

4. Technical data

Rated voltage: 3 ~ 400 V, 50 Hz

Dimensions: (H x W x D) 1570 x 500 x 1050 mm Weight: approx. 56 kg (machine head only) Working height: 790 mm (ex works)

Noise: work-place-related emission value

767 - FA - 373 Lc = 83 dB (A)

1 ~ 230 V, 50/60 Hz

in accordance with DIN 45635-48-A-1-KL2

stitch length: 5 mm sewing-foot stroke: 1.5 mm stitch rate: 3 000 min

material: G1 DIN 23328 4-layer

-1

767 - FA - 373 Lc = 83 dB (A)

stitch length: 7.2 mm sewing-foot stroke: 5.6 mm stitch rate: 2 000min

material: 2-ply Skai 1.6 mm 900 g/m2DIN 53352

767 - FAS - 473 Lc = 85 dB (A) 767 - FA - 273

stitch length: 5 mm sewing-foot stroke: 1.6 mm stitch rate: 2 700 min

needle distance: 8 mm material: G1 DIN 23328 3-layer

767 - FAS - 473 Lc = 84 dB (A) 767 - FA - 273 stitch length: 6 mm sewing-foot stroke: 5.6 mm stitch rate: 2 000 min

needle distance: 8 mm material: 2-ply Skai 1.6 mm 900 g/m

DIN 53352

767 - LG - 73 Lc = 83 dB (A)

stitch length: 6 mm sewing-foot stroke: 3.5 mm stitch rate: 2 800 min-

material: upholstery fabric faced both sides 435 g/m

767 - VF - 573 Lc = 85 dB (A) 767 - VF - 373

stitch length: 6 mm sewing-foot stroke: 3.5 mm stitch rate: 2 800 min

material: upholstery fabric faced both sides 435 g/m

767 - AE - 5 - 73 Lc = 84 dB (A) 767 - AE - 73

767 - FAS - 373 Lc = 83 dB (A)

stitch length: 6 mm sewing-foot stroke: 3.5 mm stitch rate: 2 800 min

material: upholstery fabric faced both sides 435 g/m

stitch length: 5 mm sewing-foot stroke: 1.5mm stitch rate: 3 000 min

material: G1 DIN 23328 4-layer

767 - FAS - 373 Lc = 83 dB (A)

stitch length: 7.2mm sewing-foot stroke: 5.6mm s titch rate: 2 000min

material: 2-ply Skai 1.6 mm 900 g/m2DIN 53352

767 - FAS - 573 Lc = 83 dB (A)

stitch length: 5 mm sewing-foot stroke: 1.6 mm stitch rate: 2 500 min

material: G1 DIN 23328 4-layer

767 - FAS - 573 Lc = 80 dB (A)

stitch length: 7.2mm sewing-foot stroke: 5.6mm s titch rate: 1500 min

material: 2-ply Skai 1.6 mm 900 g/m2DIN 53352

767 - KFA - 373 Lc = 83 dB (A)

- 573

stitch length: 5 mm sewing-foot stroke: 1.6 mm stitch rate: 2 500 min

material: G1 DIN 23328 4-layer

767 - KFA - 373 Lc = 80 dB (A)

- 573

stitch length: 7.2mm sewing-foot stroke: 5.6mm/ stitch rate: 1 500 min

material: 2-ply Skai 1.6 mm 900 g/m2DIN 53352

-1

4.1 Subclass technical data

Subclass 767

stitch rate:

-max. [min

-exworks [min

stitch length:

- forwards [mm]

- backwards [mm]

stroke height of alternating sewing feet:

- max. [mm]

- ex works [mm]

-1

needle system:

needle thickness: (depending on E no.)

sewing-thread thicknesses: a) cotton [NeB] b) synthetic

sewing yarn [Nm]

c) covering yarn [Nm]

max. spool capacity with synthetic yarn ca. [m]

-73 -FA- 73 -FAS-473 -FA-273 -LG-73

-373 -FA-373

] ]

3200 3500 3200 3500 3200 3200 3200 3200 3200 3000

99999 99999

77777

1-6 1-6 1-6 1-6 1-6

134-35 134-35 134-35 134-35 134-35

110-140 110-140 90-110 90-110 110-140

110-140 110-140 110-140

24 / 3 24 / 3 24 / 3 24 / 3 24 / 3

30 / 3 30 / 3 30 / 3 30 / 3 30 / 3 30 / 3 30 / 3 30 / 3 30 / 3 30 / 3

35 35 56 35 35

needle width/needle distance (depending on sewing device and E no.) [mm]

max. clearance beneath sewing feet:

- sewing [mm]

- lifted [mm]

handwheel belt groove central Ø [mm]

operating pressure [bar]

air consumption [NL]

- - 4-30 4 - 36 -

10 10 10 10 10 16 9 (16) 9 (16) 9 (16) 13

80 80 80 80 80

66666

0,7 0,7 0,7 0,7 0,7

Subclass

-VF-573 -AE-5-73 -KFA-373 -FAS-373 -FAS-573

-VF-373 -AE-73 -573

stitch rate:

-max. [min

-exworks [min

stitch length:

- forwards [mm]

- backwards [mm]

stroke height of alternating sewing feet:

- max. [mm]

- ex works [mm]

-1

needle system:

needle thickness: [Nm] (depending on E no.)

thread thicknesses: a) cotton [NeB] b) synthetic

sewing yarn [Nm]

c) covering yarn [Nm]

max. spool capacity with synthetic yarn ca. [m]

needle width/needle distance (depending on sewing device and E no.) [mm]

] ]

3000 2800 3500 3500 3200 2800 2800 3200 3200 3200

99999 99999

77777

1-6 1,6-7 1,5-6 1-6 1-6

134-35 134-35 134-35 134-35 134 - 35

110-140 110-140 110-140 110-140 110-140

24 / 3 24 / 3 24 / 3 24 / 3 24 / 3

30 / 3 30 / 3 30 / 3 30 / 3 30 / 3 30 / 3 30 / 3 30 / 3 30 / 3 30 / 3

35 35 35 35 56

-----

max. clearance beneath sewing feet:

- sewing [mm]

- lifted [mm]

handwheel belt groove central Ø [mm]

operating pressure [bar]

air consumption [NL]

10 10 10 10 10

9 (16) 13 9 (15) 9 (16) 9 (16)

80 80 80 80 80

66666

0,7 0,7 0,7 0,7 0,7

5. Operation

5.1 Upper thread

Caution! Danger of injury!

Turn off main switch! The upper thread may only be threaded with the sewing machine switched off.

Threading upper thread (needle thread)

–

Place the thread spool on its column and pass the thread through the guide eyelets of the take-up arm.

–

Pass the thread through guide 7 and anti-clockwise round pre-tensioner 8. Pass thread once more through guide 7.

–

Pass the thread round guide 11 and anti-clockwise round main tensioner 10. Pass the thread clockwise round main tensioner 12.

–

Pass the thread clockwise round tension unit 4, past thread-tensioning spring 3 and through guide 2.

–

Pass the thread through thread lever 1 and through guides 2, 5 and 6.

–

Pass the thread through the needle, pull a few centimetres of thread through and cutitoff.

Threading the upper thread (2-needle machines)

Sewing machines with 2 needles are threaded similarly to single-needle machines. The differences can be seen in the illustration. The thread-tensioning unit 13 is a double unit and can thus be used on both 1 and

2-needle machines.

Adjusting the upper-thread tensioner

Tension should be as low as possible. The cross-over point should be in the centre of the material.

–

Adjusting the pre-tensioner 8. The pre-tension should be set lower than the main tension.

–

Adjusting main tensioner (10 and 12).

Raising the upper-thread tensioner

The upper-thread tensioner is automatically raised when the thread is severed.

–

Press knob 9. Die upper-thread tensioner remains in the raised position for as long as the knob is held down.

5.2 Adjusting the thread regulator

The thread regulator 14 regulates the amount of needle thread necessary for stitch formation.

The setting depends on the following factors: - material thickness

A properly-adjusted thread regulator ensures an ideal sewing result at a minimum needle-thread tension.

At the correct setting the needle-thread loop must slide at low tension over the thickest point of the shuttle.

- yarn characteristics

- stitch length

Caution - danger of injury!

Turn off the main switch. The thread regulator may only be adjusted with the sewing machine switched off.

–

Undo both screws 15.

–

Move the thread regulator 14. The thread regulator is fitted with slots for this purpose. Moving in the “+” direction increases the quantity of needle thread. Moving in the “-” direction reduces the quantity of needle thread.

–

Tighten screws 15.

891011

5.3 Lower thread

Look out! Danger of injury!

Turn off main switch! The lower thread may only be threaded with the sewing machine switched off.

Threading the low er thread (hook thread)

–

Place the thread spool on its column.

–

Pass the lower thread through the thread guide on the take-up arm and alternately through the guide of the pre-tensioner 1.

–

Pass the thread anti-clockwise round tensioner 1 and once more through the thread guide.

–

Carefully wind a few turns of thread anti-clockwise onto the spool by hand and place the spool on its column.

–

Swivel the bobbin winder 4 against the empty spool. The thread is wound onto the spool during sewing. When spool 3 is full, winding-on is halted by the bobbin-winder lever 4.

–

Adjusting tension 1. The thread should be wound on at minimum tension.

Threading the low er thread

–

Raise flap 5 and remove the empty spool with a magnet or tweezers.

–

Insert spool 6 in such a way that when the thread is unwound from it moves in the opposite direction to the hook.

–

Pass the thread through slit 7 and below spring 10.

–

Pass the thread through slit 8 and pull about 3 cm through.

–

Close flap 5 and pass the thread through the flap’s guide 9.

Adjusting the lower-thread tension

The lower-thread tension should be set in accordance with the type of seam required. Adjust the tension with screw 11.

Fig. a: correct thread interlacing i n the centre of

the material

Fig. b: needle-thread tension too low

or looper-thread tension too great

Fig. c: needle-thread tension too great

or looper-thread tension too low

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