DURKOPP ADLER 8967 User manual

Contents: Page:
Preface and General Safety Information
Part 1: Operating Instructions Cl. 8967
1. Product Description
1.1 Short Description and Proper Use . . . . . . . . . . . . . . . . . . . . . 5
1.2 Sub-Classes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.3 Technical Specification . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2. Operating Elements and Their Function
2.1 Elements at the Sewing Head . . . . . . . . . . . . . . . . . . . . . . . . 6
2.2 Elements on the Frame . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3. Operating the Sewing Machine
3.1 Threading the Needle Thread . . . . . . . . . . . . . . . . . . . . . . . . 11
3.2 Winding the Bobbin Thread . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.3 Changing the Bobbin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
3.4 Setting the Bobbin Thread Tension . . . . . . . . . . . . . . . . . . . . . 14
3.5 Setting the Thread Regulator . . . . . . . . . . . . . . . . . . . . . . . . 15
4. Operating the Frame
4.1 Folding Down the Table Top . . . . . . . . . . . . . . . . . . . . . . . . . 16
5. Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Contents:Page:
GB

1. Product Description
1.1 Short Description and Proper Use
The special sewing machine 8967 is a single needle-double lock stitch free-arm
machine with lower transport without stroke and an upper transport with alternating
pressure feet.
The machine is designed and may only be used for sewing of textile material or leather.
1.2 Sub-Classes
8967-160180 Execution without thread trimmer,
Pressure foot lift electropneumatic.
8967-160182 Execution with electromechanical
thread trimmer for needle and
bobbin thread, electropneumatic,
automatic interlock and pressure foot lift.
1.3 Technical Specification
Needle system: System 2134-35
Max. number of stitches:
dependent on pressure foot stroke 2000, 3000 rpm
and stitch length
Maximum stitch length:
forward (F), reverse (R) 6 (F); 6 (R) mm
Pressure foot stroke: 2 - 7 mm
Maximum clearance under
the pressure feet:
When sewing: 10 mm
When raised in needle high position: 17 mm
Maximum thread thickness:
Cotton: 9/3
Synth. endless: 15/3 Nm
Core thread (poly-cotton): 20/3 Nm
Through-feed area: 281 x 135 mm
Free arm diameter 47 mm
Operating pressure: 6 +/- 0.5 bar
Line pressure: 7 - 10 bar
Air consumption per work cycle: 0.15 NL
5

2. Operating Elements and Their Function
2.1 Elements at the Sewing Head
Element Function
1 Pressure foot screw - This screw is screwed in completely at the factory
and the position may not be changed.
2 Thread regulator - Setting the correct thread quantity for different
material thicknesses, sewing yarns and stitch lengths.
3 Control knob - Setting auxiliary tension for the needle thread.
4 Lever - Opening the main needle thread tension and
auxiliary needle thread tension.
5 Control knob - Setting the main tension for the needle thread
6 Lever - Switching the auxiliary tension on and off.
Pull the lever to the right before switching over in or-
der to free it from its catch.
7 Adjustment wheel - Setting the pressure foot stroke.
8 Lever - Bobbin thread winding device
9 Viewing glass with - Show the oil level in the reservoir.
11 fill opening The oil level must be kept above "MIN".
If necessary fill Esso "SP NK 10" up to the "MAX"
marking in the reservoir.
10 Control knob - Setting the stitch length for sewing forwards.
12 Control knob - Setting the stitch length for sewing in reverse.
13 Hand lever - Continuous adjustment of the stitch length between
the set forward and reverse stitch lengths.
14 Lever - Determining the status of the main needle thread
tension during pressure foot lift.
Lever up: Tension open.
Lever down: Tension closed.
15 Needle
Caution!
Be sure to turn off the main switch when threading or
replacing the needle.
Risk of Injury.
16 Knob - Arresting the pressure foot in the raised position.
6

12 3456 7 89
10
11
1213141516
7

2.2 Elements on the Frame
Element Function
Frame Type MG 55-3
1 Main switch - Switching the machine on and off
2 Pedal
Rest position - No function
Position forward - Sewing with desired rpm
Position "half back" - Raise pressure foot when machine at rest
Position "full back" - Thread trimming and raise pressure foot
3 Screw - Setting the Table Top Height.
Frame Type MG 56-2
4 Main switch - Switching the machine on and off
5 Pedal
Rest position - No function
Position forward - Sewing with desired rpm
Position "half back" - Raise pressure foot when machine at rest
Position "full back" - Thread trimming and raise pressure foot
6 Lever - Securing the raised table top half
7 Brace - For supporting the lowered table top in the
horizontal position.
8

MG 55-3
123
MG 56-2
76 5 4
9

Maintenance Unit
8 Air filter and - Before the water level reaches the filter, screw in
water trap screw 7 far enough to drain water.
Do
not interrupt the compressed air supply.
9 Pressure regulator - To set to 6 bar pull the bushing 10 up and turn appropriately.
89
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3. Operating the Sewing Machine
3.1 Threading the Needle Thread.
Caution Risk of Injury !
Turn off the main switch before threading.
–Thread the needle thread as shown in the illustration.
11

3.2 Winding the Bobbin Thread
–Place the bobbin 4 on the bobbin winder 3.
–Pull the thread through the guide 1 and the tension 2.
–Wind the thread approx. 5 x clockwise around the
bobbin core and tear off at the thread clamp 6.
–Press the bobbinr lever 5 into the bobbin.
–Sewing
The bobbin winder lever stops the procedure when
the bobbin is full.
Attention !
If the thread is not to be wound during sewing, the
pressure foot must be arrested in the raised position and
the pressure foot stroke set at the smallest value.
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