Duerkopp Adler 550-16-26 Manuale utente

Contents Page:

Preface and General Safety Information

Part 1: Operating Instructions Class 550-16-26

1. Product Description ............................................ 5

2. Proper Use .................................................. 5

3 Technical Data ............................................... 6

4. Operation

4.1 Threading the Needle Thread ....................................... 7

4.2 Setting the Needle Thread Tension .................................... 9

4.3 Releasing the Needle Thread Tension .................................. 9

4.4 Setting the Thread Regulator ....................................... 10

4.5 Winding the Hook Thread ......................................... 11

4.6 Changing the Hook Thread Bobbin .................................... 12

4.7 Setting the Hook Thread Tension ..................................... 13

4.8 Changing the Needle ............................................ 14

4.9 Sewing Foot Lift ............................................... 15

4.10 Arresting the Sewing Foot in the High Position ............................. 16

4.11 Setting the Sewing Foot Pressure .................................... 16

4.12 Stroke Height of the Sewing Foot during Lifting ............................ 17

4.13 Pulsating sewing foot ............................................ 17

4.14 Knee Switch ................................................. 18

4.15 Left “Correction Value” / Fullness Value Pedal ............................. 18

5. Operating the Controls 550-16-26 ................................... 19

6. Sewing .................................................... 19

7. Maintenance

7.1 Cleaning and Checking ........................................... 20

7.2 Lubrication .................................................. 22

1. Product Description

The Dürkopp Adler 550-16-26 is a configured sewing station for the

sewing-on of sleeves.

The workstations are equipped with a single needle, double lockstitch,

post-bed machine with bottom and top belt feed.

30 different fullness values can be selected via the keypad. In order to

achieve a firmer pulling-on of the stitch, a supplementary tension can

be added when a high fullness value is turned on.

Further details:

•Step motor technology for top and bottom belt feed.

•Material-protective belt feed with two individually powered belts for

the top and bottom feed.

2. Proper Use

The 550-16 is a sewing place which can properly be used for sewing

litght to medium weight material. Such material is, as a rule, material

made up of textile fibres. This material is used in the garment industry.

Further, it may be possible to also conduct so-called technical seams

with this special sewing machine. Here, however, it is essential that the

operator (Dürkopp Adler AG would be pleased to collaborate) make

an evaluation of the possible dangers because such applications are,

on the one hand, comparatively rare and, on the other, the variety is

immense. Dependent of the result of this evaluation, appropriate safety

measures are to be taken.

Generally, only dry material should be sewn on this machine. The

material should not exceed the thickness of 7 mm when compressed

by the lowered sewing foot. The material should not contain any hard

objects, otherwise it would be necessary to protect the eyes during the

sewing process. For the time being, no such guard is available.

The seams are produced generally with threads of textile fibres of a

dimension up to 70/3 - 140/3 NeB. Before using any other threads it is

necessary, also in this case, to estimate the consequential dangers

and to take, if necessary, the respective safety measures.

This special sewing machine may only be installed and operated in a

dry and clean environment. If the sewing machine is used in another

environment which is not dry and clean, further measures, which are to

be agreed upon, may be necessary (see EN 60204-31:1999).

We, as a manufacturer of industrial sewing machines, assume that at

least semi-skilled operating personnel will be working on our products

so that all normal operations and, where applicable, their dangers are

presumed to be known.

3. Technical Data

Noise Workstation-specific emission value to DIN 45635-48-A-1-KL2

Cl. 550-16-26 Lc = 79 dB (A)

Stitch length: 4,4 [mm]

Number of

stitches: 2.500 [min-1]

Material: G1 DIN 23328 2-plies

Stitch type Double lockstitch

Needle system: 134-35

797

Sy1955-1

Needle thickness (as per E-No.:) [Nm] 70 - 100

Thickness of sewing thread max.: [Nm] 50/3

Number of stitches max.: [min-1]4.000

Stitch length max.: [mm] 1,5 - 5,5

Max. clearance under the sewing feet:

- Sewing [mm]

- Lifted [mm]

Operating pressure: [bar] 6

Air consumption per work cycle: approx. [NL] 0,6

Nominal voltage: 190-240V 50/60 Hz

Dimensions(L x B xH) [mm] 140 x 750 x 1300

Working level (ex works): [mm] 790

Weight [kg] 140

4. Operation

4.1 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 thread rolls on the thread stand and guide the needle and

the hook thread through the thread guides.

The thread guide 1 must be in vertical position above the thread

rolls.

–Thread the needle thread as shown in the illustration.

Illus. A: Correct thread interlacing

in the middle of the material

Illus. B: Needle thread tension too low

hook thread tension too high

high

Illus. C: Needle thread tension too

high

hook thread tension too low

321 4

4.2 Setting the Needle Thread Tension

Pre-tension

With open main tension 3 a slight residual tension on the needle thread

is necessary. The residual tension is created by pre-tension 1.

The pre-tension 1 influences the length of the cut needle thread end at

the same time (starting thread for the next seam).

–Base position:

Turn the knurled nut 1, until its face is flush with bolt 2.

–Shorter starting thread:

Turn knurled nut 1 clockwise.

Main tension

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.

Too high thread tensions can lead to undesired puckering and thread

breakage in thin material.

–Set the main tension 3 so that a uniform stitch formation is

achieved.

Increase tension = Turn the knurled nut clockwise

Decrease tension = Turn the knurled nut -

counterclockwise

ATTENTION !

The main tension can be opened through the control.

(e.g. for sewing Polsters)

Supplementary tension

The supplementary tension 4 can be switched on for thicker gathering

(programmable).

–Set the supplementary tension 4 lower than the main tension 3.

4.3 Releasing the Needle Thread Tension

Automatic

The needle thread tension is automatically opened during thread

trimming and lifting of the sewing foot.

4.4 Setting the Thread Regulator

Caution Risk of Injury !

Turn the main switch off .

Set the thread regulator only with the sewing machine turned off.

The needle thread quantity required for stitch formation is regulated by

the thread regulator 6.

Only a precisely set thread regulator assures an optimal sewing result.

With a correct setting the needle thread loop must glide over the

thickest part of the hook with a light tension.

–Loosen screw 5.

–Set the position of the thread regulator.

–Tighten screw 5.

Setting note:

When the largest thread quantity is required, the check spring 7 must

be pulled up approx. 0.5 mm from its upper end position. This is the

case when the needle thread loop passes the maximum hook

circumference.

76 5

4.5 Winding the Hook Thread

–Slip the bobbin onto the bobbin winder 2.

–Pull the thread through the guide 3 and the tension 4.

–Wind the thread clockwise about 5 times around the bobbin core

and tear off at the thread clamp.

–Swing the bobbin winder lever 1 towards the bobbin .

–Sewing

The bobbin winder lever will stop the winding process as soon as

the bobbin is full.

ATTENTION !

If the thread is not to be wound during sewing,

it is essential to arrest the sewing foot in the raised position.

(See chapter 4.10)

43 21

4.6 Changing the Hook Thread Bobbin

Caution Risk of Injury !

Turn the main switch off .

Change the hook thread bobbin only with the machine turned off.

Removing the empty bobbin

–Swing the hook cover 2 down.

–Bring the needle bar in high position.

–Lift the bobbin case flap 1.

–Take out the bobbin case top 3 with the bobbin 7.

–Remove the empty bobbin from the bobbin case top 3.

Inserting a full bobbin

–Insert the full bobbin in the bobbin case top 3.

–Pull the hook thread through slit 6 under the tension spring 5 until

in the drilled hole 4.

–Pull the hook thread approx. 5 cm out of the bobbin case 3.

The bobbin must turn in the direction of the arrow when the thread

is pulled off.

–Insert the bobbin case 3 again.

–Close the bobbin case flap 1.

–Swing the hook cover 2 up.

4.7 Setting the Hook Thread Tension

Caution Risk of Injury!

Turn the main switch off .

Set the hook thread tension only with the machine turned off.

Half of the necessary hook thread tension should be created by the

brake spring 8 and halb by the tension spring 5.

Setting the tension spring

–The bobbin case top 3 should slowly lower under is own weight

(see right illustration).

–Set the tension spring 5 at the adjusting screw 10 until the

necessary tension value is reached.

Note:

The hook thread tension should amount to 20 +/- 5 grams.

105

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