Duerkopp Adler 195 User manual

Contents: Page:
Preface and General Safety Information
Description of proper use or proper application
Part 1: Operating Instructions Cl. 195
1. Product Description . . . . . . . . . . . . . . . . . . . . . . . . 5
1.1 Short Description and Proper Use . . . . . . . . . . . . . . . . . 5
1.2 Sub-Classes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.3 Technical Specification . . . . . . . . . . . . . . . . . . . . . . . 6
1.4 Optional Equipment . . . . . . . . . . . . . . . . . . . . . . . . . 6
2. Operating Elements and Their Function . . . . . . . . . . . . 7
2.1 Elements at the Sewing Head . . . . . . . . . . . . . . . . . . . . 7
2.2 Elements on the Frame . . . . . . . . . . . . . . . . . . . . . . . 11
3. Operating the Sewing Machine . . . . . . . . . . . . . . . . . . 13
3.1 Threading the Needle Thread . . . . . . . . . . . . . . . . . . . . 13
3.2 Needle Thread Quantity for Sure Stitch Formation . . . . . . . . 14
3.3 Threading the Bobbin Thread . . . . . . . . . . . . . . . . . . . . 15
3.4 Setting the Thread Tensions . . . . . . . . . . . . . . . . . . . . . 16
3.5 Setting the Bobbin Thread Take-Up . . . . . . . . . . . . . . . . . 17
3.6 Setting the Pressure Foot Stroke . . . . . . . . . . . . . . . . . . 18
3.7 Edge trimmer shut-on and shut-off . . . . . . . . . . . . . . . . . 19
4. Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Following Patents and Registered Utility Models apply:
Status April 1994
DE 30 43 141 JP 1 258 920
IT 209 238 JP 1 339 944
KR 24 686 JP 1 803 181
TW 31 498 JP 1 931 464
US 4 116 145
US 4 446 803

1. Product Description
1.1 Short Description and Proper Use
The special sewing machine 195 is a single needle-double chain stitch
machine with lower transport and an upper transport with alternating
pressure feet. The hook of the 195 is set crosswise to the direction of sewing
(Crossline). With the parts set 195 5002 it can be converted to a two-needle
sewing machine.
The machines are designed and may only be used for sewing materials of
textile fiber and leather.
As of 11/95 Class 195-171110 is equipped at the factory so that thread
thicknesses greater than 25/3 Nm can be sewn (airbag production).
For this, the machine and the parts kit 195 5002 each have a second hook,
this means that:
The single needle machine can be equipped with
hook 195 4753 for threads up to 25/3 Nm or with
hook 195 4753a for threads thicker than 25/3 Nm as required.
The dual needle machine can be equipped with the
hooks 195 4753 and 195 5055 for threads up to 25/3 Nm or with
hooks 195 4753a and 195 5055a for threads thicker than 25/3 Nm as required.
Attention!
The hook or hooks not inserted in the machine are enclosed with the machine.
1.2 Sub-Classes
195-171110 Execution without thread trimmer.
Electropneumatic lifting of the
pressure foot
195-171521 Execution with electropneumatic
thread trimmer for needle and
bobbin thread, electropneumatic
automatic interlock and
pressure foot stroke
5

1.3 Technical Specification
Needle system: 933
Maximum number of stitches: 4000 rpm
dependent on pressure foot stroke
and stitch length
Maximum stitch length: Upper transport 10 mm
Lower transport 8 mm
Maximaler pressure foot stroke: 2-7 mm
Clearance under the pressure feet:
when sewing: 10 mm
when raised: 17 mm
Maximum thread thickness: 20/3 Nm
Operating pressure: 6 +/- 0,5 bar
Line pressure: 7-10 bar
Air consumption per work cycle:
-171110 0,05 Nl
-171521 0,1 Nl
Through-feed area: 280 x 132 mm
1.4 Optional Equipment
195 5002 Parts set for converting a single-needle
to a two-needle machine. Max. needle
pitch 14 mm dependent on the E-Nr.
Not for 195-171521.
Z 133 601 Reflecting light barrier for recognizing
the seam end.
Z 132 1501 Needle cooling from above.
6

2. Operating Elements and TheirFunction
2.1 Elements on the Sewing Head
Element Function
1 - Screw - This screw for the pressure foot pressure is
screwed in completely at the factory.
Do not alter the screw position!
2 - Thread regulator - Setting the correct needle thread quantity
3 - Needle thread puller - For formation clean stitches at the beginning of
the seam pull out sufficient thread.
4 - Adjustment wheel - Setting pressure foot stroke.
5 - Control knob - Setting needle thread tension.
6 - Control knob - Setting bobbin thread tension.
7 - Viewing glass - Show the oil level in the reservoir. The oil level
with fill opening must be kept above "MIN". If necessary fill
"Esso SP NK 10" oil up the the "MAX" marking.
8 - Plate - Bobbin thread guide
9 - Light barrier - Recognition of the material edge and thereby the
precise position of the stitch condensation at
the seam end.
10 - Needle - 933, Needle thicknesses depending on the sewing
garrangement.Caution Risk of Injury!
11 - Knob - Lock the pressure foot in the raised position.
12 - Lever - Edge trimmer shut-on and shut-off. (195-671110)
12
234567
8
91011
1
7

Element Function
13 - Operating field - See motor manufacturer’s instructions
Note: For thread trimming with the sub-class
171521 the thread wiper on the thread
trimming key must also always be turned on.
Diodes aand b must be lit.
The upper diode cmust be lit on the "Stitch
Condensation at the Seam End" key.
14 - Bobbin thread- - For formation a clean stitch at the seam beginning
puller pull out sufficient thread.
15 - Adjustment wheel - Setting the stitch length of the upper transport.
16 - Adjustment wheel - Setting the stitch length of the lower transport.
17 - Screw - Setting the stitch condensation
(Length of the stitches).
18 - Hand lever - Continuous adjustment of the stitch length.
bac1415161718 13
8

Element Function
16 - Block of Keys
17 - Key - Key not just.
18 - Key - Suppression of stitch condensation at seam
beginning
19 - Key - Sew single stitches
20 - Key - Bring the needle alternatingly in position
high/low, stitch condensation at any desired
seam position during sewing.
1617181920
9

Element Function
20 - Dip stick - Measuring the oil level in the hook drive
housing . Dip stick is in the enclosed package.
21 - Screw To check the oil level screw out screw 21
and place the dip stick 20 in the opening. The
oil level must be between the markings.
Fill only Esso SP NK 10-type oil.
Attention!
When overfilling the excess oil will come
out of the ventilation hole in screw 21.
22 - Thread take-up - Automatic adaption of the bobbin thread quantity
to the set stitch length. Settings for tight,
normal and highly elastic seams see
Section 3.5.
UMB 2.2
21
20
22
10

2.2 Elements on the Frame
Element Function
1 - Main switch - Switch the machine on and off.
2 - Screw - Compensation for floor irregularities
3 - 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
4 - Screws - Adjusting the work height
1
3
42
11

Maintenance Unit
Element Function
7 - Oil mister - With the regulating screw 5 set approx. 1 drop
for 10 work cycles.To fill interrupt the
compressed air feed and vent the system with
screw 9. Screw out screw 6 and fill
"Esso SP NK 10"-type oil up to the groove in
the glass.
8 - Air filter and - Before the water level reaches the filter, screw
water trap in screw 9 far enough to drain water.
Do
not interrupt the compressed air supply.
10 - Pressure Regulator - To set to 6 bar pull the bushing 11 up
and turn appropriately.
UMBRUCH =
11 10 9 8 7 6 5
12

3. Operating the Sewing Machine
3.1 Threading the Needle Thread
Caution Risk of Injury!
Turn off main switch before threading.
- Thread the needle thread as shown in the
illustrations.
Important!
By machines with thread trimming it is
essential that the needle thread be threaded
through the pre-tensioners (1).
1
13

3.2 Needle Thread Quantity for Sure Stitch Formation
With elastic sewing threads, e.g. synthetic fiber
threads, a certain needle thread quantity must be
pulled out for sure stitch formation.
This occurs in the low position of the take-up lever
in conjunction with the thread regulator 1.
For this the thread regulator is set as follows:
–Bring the thread regulator into its lowest
position.
–Adjust the thread regulator.
With elastic threads:
The thread hole must be visible below the thread
regulator.
Thread the needle to the
left past the bar. Illus. a
With non-elastic threads, e.g. cotton:
Thread hole should be visible above the thread
regulator.
Thread the needle thread to the right past the bar.
Illus.b
a) b)
1
14

3.3 Threading the Bobbin Thread
Caution Risk of Injury !
Turn off the main switch before threading.
–Lift the thread holder 1 out of its catch.
–Draw the thread through the holes 2 and 3.
–Draw the thread through the hook holes.
–Close the hook holder.
1
2
3
15

3.4 SettingtheThreadTensions
The thread tension of the needle thread must be
higher than that of the bobbin thread. The control
knob for the bobbin thread tension thus has a
spring of thinner wire.
Too high thread tensions cause a puckering of the
material.
Too low bobbin thread tensions can cause faulty
stitches.
For setting a greater thread quantity in the seam
see Section 3.5.
Furthermore, one can work with or without
pneumatic tension opening during the stroke of the
sewing foot.
The tension opening is necessary when the sewing
material with thread is to be pulled forward under
the sewing foot. Here the arm cover must be
removed and the coupling plug inserted into the
preattached coupling socket.
Attention!
When sewing corners with sewing foot stroke a
loose stitch results.Thus, pneumatic tension
opening should only be used when there is no
sewing foot stroke during the course of the seam.
16

3.5 Setting the HookThread Take-up
The thread take-up 1 provides for an automatic
adjustment of the thread quantity to the set stitch
length.
Because of this , stitch pull and stitch formation
are always optimal for every stitch length, also for
stitch condensation. The drawn-in thread quantities
can be altered for each type of seam.
Results without altering the thread tensions are:
a) tight
b) normal
c) highly elastic (ballon stitch) seams.
–Loosen screws 2.
–Adjust the thread take-up.
Direction 0 tighter seam
Direction 5 elastic seam.
Important!
1) With extreme settings, e.g. a smallest possible
stitch length and a highest possible thread quantity
(elastic seam), care must be taken that a positive
stitch of the needle into the thread delta is
possible. Faulty stitches can occur by too large
hook thread quantities.
2) If the stitch length is greatly increased by the
settings described under 1, it is necessary to set
back the thread guide in the direction 0. Otherwise
the hook thread may jump off of the thread take-up
disc.
2
1
a)
b)
c)
17

3.6 Setting the Pressure Foot Stroke
Attention!
The machine does not have automatic revolution
reduction. When sewing with a large pressure foot
stroke it is imperative to manually reduce the
number of revolutions.
Too high revolutions become obvious through
louder sewing noise.
18

3.7 Edge trimmer activating and deactivating
The edge trimmer off Cl. 195-671110 may be
actuated at any time. It’s upper knife is such as
formed that also a save cutting aktion is achieved
at activating while sewing.
Attention Danger of injuring
Don’t reach into cutting zone at activating the
trimmer. Remove finger guard only for repair
aktions. immediately replace finger guard at
damages.
For activating of the trimmer pull lever 1
downwardly, for deactivating push lever upwardly
1
19

4. Maintenance
Caution Risk of Injury !
Turn off the main switch before cleaning the
machine.
At the very latest maintenance work must be
conducted after the number of operating hours
listed in the column " Interval".Shorter
maintenance intervals may necessary when
working with very linty material.
Procedure Interval Remarks
Head
Removal of lint 8 Particularly at following points:
accumulations Underside of the stitch plate
Transporter stays
Area around the hook
Check oil level in the 40 See Subject 2.1
reservoir Element 10
Maintenance Unit
Clean insert in the air filter 8 500 First vent the system
Check oil level in the oil mister 6 180 Do not allow the oil level to fall
the opening in the suction pipe
Check the oil feed in the oil
mister 180 See Subject 2.2
Check all compressed air lines
for leaks 500
20