-1/1306
3108
INSTRUCTION MANUAL
-1/1310
with BDF S3
This instruction manual applies to machines
from serial number 2 774 709, software version
0394/008 (3108-1/1310) and
0408/008 (3108-1/1306) onwards.
296-12-19 165/002
Betriebsanleitung engl. 03.11
The reprinting, copying or translation of PFAFF Instruction Manuals, whether in whole or
in part, is only permitted with our previous authorization and with written reference to the
source.
PFAFF Industriesysteme
und Maschinen AG
Hans-Geiger-Str. 12 - IG Nord
D-67661 Kaiserslautern
Contents
Contents .................................................................................... Chapter - Page
1
Safety .................................................................................................................................... 6
1.01 Directives ............................................................................................................................... 6
1.02 General notes on safety ......................................................................................................... 6
1.03 Safety symbols ......................................................................................................................7
1.04 Important notes for the user .................................................................................................. 7
1.05 Notes for operating and technical staff .................................................................................. 8
1.05.01 Operating staff ....................................................................................................................... 8
1.05.02 Technical staff ........................................................................................................................ 8
1.06 Danger warnings .................................................................................................................... 9
2 Proper use........................................................................................................................... 10
3 Specifi cations ......................................................................................................................11
4 Disposal of Machine .......................................................................................................... 12
5 Transportation, packing and storage ................................................................................ 13
5.01 Transportation to customer‘s premises ............................................................................... 13
5.02 Transportation inside the customer‘s premises ................................................................... 13
5.03 Disposal of packing materials ..............................................................................................13
5.04 Storage ................................................................................................................................ 13
6 Explanation of symbols ..................................................................................................... 14
7 Controls .............................................................................................................................. 15
7.01 On/off switch ....................................................................................................................... 15
7.02 Foot switch .......................................................................................................................... 15
7.03 Control panel ........................................................................................................................ 16
7.03.01 Screen displays .................................................................................................................... 16
7.03.02 Display symbols ................................................................................................................... 17
7.03.03 Function keys ....................................................................................................................... 17
8 Mounting and commissioning the machine .................................................................... 19
8.01 Mounting ............................................................................................................................. 19
8.02 Mounting the spool holder ................................................................................................... 20
8.03 Commissioning .................................................................................................................... 20
8.04 Switching the machine on/off ..............................................................................................21
8.05 Check/adjust zero points ...................................................................................................... 22
8.06 Adjusting the potentiometer for speed reduction ................................................................ 23
9 Preparation ........................................................................................................................ 24
9.01 Inserting the needle ............................................................................................................. 24
9.02 Winding the bobbin thread, regulating the winder tension .................................................. 25
9.03 Changing the bobbin / adjusting the bobbin thread tension ................................................ 26
9.04 Threading needle thread/adjusting needle thread tension ..............................................................27
Contents
Contents .................................................................................... Chapter - Page
9
.05 Setting the lever pressure .................................................................................................... 28
9.06 Selecting a seam program ...................................................................................................29
9.06.01 Selecting and changing the seam pattern ............................................................................ 29
9.06.02 Selecting a program station. ................................................................................................ 30
9.06.03 Selecting a sequence ........................................................................................................... 30
9.07 Adjusting the size of the sewing area .................................................................................. 31
9.08 Setting up the bobbin thread counter .................................................................................. 32
9.09 Resetting the piece counter ................................................................................................. 32
9.10 Shifting the seam pattern ..................................................................................................... 33
9.11 Inserting and removing the SD-memory card ...................................................................... 34
10 Sewing ................................................................................................................................ 35
10.01 Operating cycle .................................................................................................................. 35
10.02 Display options..................................................................................................................... 35
10.03 Sewing in the "Direct program selection" mode .................................................................. 35
10.04 Sewing in the "Program stations" mode ...............................................................................35
10.05 Sewing in the "Sequences mode". ....................................................................................... 36
10.05.01 Interrupting a sequence .....................................................................................................36
10.06 Error messages .................................................................................................................... 36
11 Input .................................................................................................................................... 37
11 .01 Reserving program stations .................................................................................................37
11 .02 Sequences ........................................................................................................................... 38
11 .02.01 Entering sequences ............................................................................................................. 38
11 .02.02 Checking the sequence contents ........................................................................................ 38
11 .02.03 Deleting sequences ............................................................................................................39
11 .02.04 Combining sequences .........................................................................................................39
11 .03 Parameter input ................................................................................................................... 40
11 .04 Access codes .......................................................................................................................41
11 .04.01 Entering the access code .................................................................................................... 41
11 .04.02 Changing the access code ................................................................................................... 41
11 .04.03 Granting access rights ......................................................................................................... 42
11 .05 Program Management .........................................................................................................43
11 .05.01 Calling up the program management .................................................................................. 43
11 .05.02 Display of the data in the machine memory ........................................................................ 44
11 .05.03 Display of the data on the SD-memory card ........................................................................ 45
11 .05.04 Copying data onto the SD-memory card.............................................................................. 46
11 .05.05 Copying data into the machine memory .............................................................................. 47
11 .05.06 Deleting data in the machine memory ................................................................................. 48
11 .05.07 Deleting data from the SD-memory card ............................................................................. 49
11 .05.08 Formatting the SD-memory card ......................................................................................... 50
12 Care and maintenance ....................................................................................................... 51
12.01 Servicing and maintenance intervals ................................................................................... 51
Contents
Contents .................................................................................... Chapter - Page
.02 Cleaning the machine .......................................................................................................... 51
12
12.03 Lubricating ........................................................................................................................... 52
12.04 Lubricate clamp drive ........................................................................................................... 53
12.05 Cleaning the blower air fi lter ................................................................................................ 54
12.06 Checking/regulating the air pressure ...................................................................................55
12.07 Emptying/cleaning the water bowl of the air fi lter/regulator ................................................ 55
13 Adjustment ......................................................................................................................... 56
13.01 Notes on adjustment ...........................................................................................................56
13.02 Tools, gauges and other accessories for adjusting .............................................................56
13.03 Abbreviations ....................................................................................................................... 56
13.04 Explanation of the symbols .................................................................................................. 56
13.05 Adjusting the sewing head ..................................................................................................57
13.05.01 Basic position of the balance wheel (adjustment aid) .......................................................... 57
13.05.02 Preliminary adjustment of the needle height ....................................................................... 58
13.05.03 Needle rise, hook clearance and needle height .................................................................. 59
13.05.04 Reversing point of hopping foot ........................................................................................... 60
13.05.05 Hopping foot lift ................................................................................................................... 61
13.05.06 Adjusting hopping foot pressure .......................................................................................... 62
13.05.07 Adjusting hopping foot height .............................................................................................. 63
13.05.08 Regulating the level of the hopping foot .............................................................................. 64
13.05.09 Bobbin winder ...................................................................................................................... 65
13.05.10 Thread check spring and thread regulator ............................................................................ 66
13.05.11 Lubrication ........................................................................................................................... 67
13.05.12 Basic position of the thread trimmer ...................................................................................68
13.05.13 Control cam to roller lever clearance (resting position) ........................................................ 69
13.05.14 Adjusting the control cam .................................................................................................... 70
13.05.15 Knife pressure ...................................................................................................................... 71
13.05.16 Manual cutting test .............................................................................................................. 72
13.05.17 Aligning the clamp drive ....................................................................................................... 73
13.05.18 Adjusting belt tensions .........................................................................................................74
13.06 Parameter list ....................................................................................................................... 75
13.07 Internet update of the machine software ............................................................................ 79
13.07.01 Update with null modem cable ............................................................................................79
13.07.02 Update with SD-card ............................................................................................................ 80
13.08 Error message explanations ................................................................................................. 82
13.08.01 General errors ...................................................................................................................... 82
13.08.02 Error in production mode ..................................................................................................... 82
13.08.03 Error during output switching ..............................................................................................83
13.08.04 Error in production mode ..................................................................................................... 83
13.08.05 Sewing motor errors ............................................................................................................ 84
13.08.06 OTE-errors ............................................................................................................................ 85
13.08.07 Stitch generation errors .......................................................................................................86
14 Circuit diagrams ................................................................................................................. 87
Safety
1 Safety
1
1.02 General notes on safety
.01 Directives
This machine was built in accordance with the European regulations stated in the Conformi-
ty and Manufacturer’s Declaration.
In addition to this Instruction Manual, also observe all generally accepted, statutory and oth-
er regulations and legal requirements - also those of the country in which the machine will
be operated - and all valid environmental protection regulations!
Applicable local regulations of the social insurance society for occupational accidents or oth-
er supervisory organizations are to be strictly adhered to!
● This machine must only be operated by adequately trained operators and only after hav-
ing completely read and understood the Instruction Manual!
● All Notes on Safety and Instruction Manuals of the motor manufacturer are to be read be-
fore operating the machine!
● The Danger and Safety Instructions on the machine itself are to be followed!
● This machine must only be used for the purpose for which it is intended and must not be
operated without its safety devices. All applicable safety regulations must be observed.
● When leaving the machine unattended and during maintenance work, the machine must
be disconnected from the power supply by operating the main switch or by removing the
plug from the mains!
● Daily maintenance w
● When carr
disconnected from the pneumatic supply network! The only exceptions to this are adjust-
ment work and functional tests carried out by appropriately trained personnel!
● Repair work and special maintenance work must only be carried out by specialists or ap-
propriately trained personnel!
● Work on electrical equipment must only be carried out by appropriately trained specialist
personnel!
● Work is not permitted on parts and equipment which are connected to the power supply!
Exceptions to this are contained in the regulations EN 50110.
● Modifi cations and alterations to the machine must only be carried out pursuant to all rele-
vant safety regulations!
● Only spare parts which have been approved by us are to be used for repairs! We express-
ly point out that any replacement parts or accessories not supplied by us have not been
tested and approved by us. The installation and/or use of any such products may result in
negative changes to the constructional characteristics of the machine. We are not liable
for any damage which may be caused by non-original parts.
ying out servicing or repair work on pneumatic devices, the machine must be
ork must only be car
ried out by appropriately trained personnel!
6
Safety
1.03 Safety symbols
Danger!
Special points to observe.
Danger of injury to operating or technical staff!
Caution
Do not operate without fi nger guard and safety devic-
es.
Before threading, changing bobbin and needle, cleaning
etc. switch off main switch.
I
1.04 Important notes for the user
● This instruction manual belongs to the equipment of the machine and must be available
to the operating staff at all times.
● This instruction manual must be read before the machine is operated for the fi rst time.
● Both operating and technical staff must be instructed on the safety devices of the ma-
chine and on safe working methods.
● It is the duty of the user to operate the machine in perfect running order only.
● The user must ensure that none of the safety devices are removed nor put out of work-
ing order.
● The user must ensure that only authorized persons operate and work on the machine.
For further information please refer to your PFAFF agency.
7
Safety
1.05 Notes for operating and technical staff
1
.05.01 Operating staff
Operating staff are the persons responsible for setting up, operating and cleaning the ma-
chine and for eliminating any malfunctioning in the sewing area.
The operating staff is obliged to observe the following points:
● The notes on safety in this instruction manual must always be observed!
● Any working methods, which adversely affect the safety of the machine,
must be avoided!
● Loose-fi tting clothing should be avoided. No jewellery, such as chains and rings, should
be worn!
● Ensure that only authorised persons enter the danger area of the machine!
● Any changes occurring on the machine, which may affect its safety, must be reported to
the user immediately.
1.05.02 Technical staff
Technical staff are persons who have been trained in electrical engineering/electronics and
mechanical engineering. They are responsible for lubricating, servicing, repairing and adjust-
ing the machine.
The technical staff is obliged to observe the following points:
● The notes on safety in this instruction manual must always be observed!
● Before carrying out any adjustment or repair work the main switch must be switched off
and measures taken to prevent it from being switched on again!
● Never work on parts or equipment still connected to the power supply! Exceptions are
only permissible in accordance with the regulations EN 50110.
● All safety covers must be replaced after the completion of maintenance or repair work!
8
Safety
1.06 Danger warnings
A working area of 1 m must be kept free both in front of and behind the
machine, so that easy access is possible at all times.
Never put your hands in the sewing area during sewing!
Danger of injury by the needle!
Never leave objects on the table while adjusting the machine settings! Objects
can become trapped or be slung away! Danger of injury by hurled objects!
3
Fig. 1 - 01
2
Do not operate the machine without the protective covers 1 and 2!
Danger of crushing between moving parts of the pneumatic and/or transport
devices.
1
Do not operate the machine without take-up lever guard 3!
Danger of injury by the movement of the take-up lever!
9
Proper use
2 Proper use
The machines 3108-1/1306 and 3108-1/1310 are small area backtack automats for the
production of backtack and assembly seams in the shoe, leather, plastic, and automotive
industry.
Any and all uses of this machine which have not been approved of by the
manufacturer are considered to be inappropriate! The manufacturer cannot
be held liable for any damage caused by the inappropriate use of the machine!
The appropriate use of the machine means that all operational, adjustment,
maintenance and repair measures required by the manufacturer are to be ob-
served!
10
Specifi cation
3 Specifi cations▲
Max. sewing speed:................................................................................................2800 s.p.m.
Max. stitch length: .................................................................................................. 0,1 - 12 mm
Stitch type: ..........................................................................................................301 (lockstitch)
Needle system: ..........................................................................................................134-35 KK
Needle size .................................................................................................................. 80 – 160
Operating voltage: .........................................................................230 V ± 10%, 50/60 Hz, A/C
Power requirement: ........................................................................................................2.2 kW
Leakage current ........................................................................................................... < 5 mA
Control range:
3108-1/1306 .......................................................................................................... 130 x 60 mm
3108-1/1310 ........................................................................................................ 130 x 100 mm
Storage capacity:: ..............................................................................................25.000 stitches
◆
Min. working pressure: ............................................................................. min. 4,5 - max. 6 bar
Air consumption: ..............................................................................................approx. 15l/cycle
Max. hopping foot lift: .......................................................................................................9 mm
Max. through-passage under clamp: ..............................................................................20 mm
Machine dimensions:
Length: ........................................................................................................... approx. 1035 mm
Width: .............................................................................................................. approx. 800 mm
Height: ........................................................................................................... approx. 1180 mm
Table height: ..................................................................................................................840 mm
Net weight: ......................................................................................................................150 kg
Ambient temperature
85% rel. humidity (condensation not permitted): ...................................................... 5 – 40° C
Noise data
Emission sound pressure level at the workplace
at a sewing speed of 3000 spm ........................................................................ LpA < 81 dB(A)
(Noise measurement in acc. with DIN 45 635-48-A-1, ISO 11204, ISO 3744, ISO 4871)
■
▲
Subject to alteration
◆
Due to the use of network fi lters there is a nominal leakage current of < 5 mA.
■
KpA = 2,5 dB
11
Disposal of Machine
4 Disposal of Machine
● Proper disposal of the machine is the responsibility of the customer.
● The materials used for the machine are steel, aluminium, brass and various plastic
materials. The electrical equipment comprises plastic materials and copper.
● The machine is to be disposed of according to the locally valid pollution control
regulations; if necessary, a specialist ist to be commissioned.
Care must be taken that parts soiled with lubricants are disposed of separately
according to the locally valid pollution control regulations!
12
Transportation, packing and storage
5 Transportation, packing and storage
5
.01 Transportation to customer‘s premises
The machines are delivered completely packed.
5.02 Transportation inside the customer‘s premises
The manufacturer cannot be made liable for transportation inside the customer‘s premises
nor to other operating locations. It must be ensured that the machines are only transported
in an upright position.
5.03 Disposal of packing materials
The packing materials of this machine comprise paper, cardboard and VCE fi bre. Proper
disposal of the packing material is the responsibility of the customer.
5.04 Storage
If the machine is not in use, it can be stored as it is for a period of up to six months, but It
should be protected against dust and moisture.
If the machine is stored for longer periods, the individual parts, especially the surfaces of
moving parts, must be protected against corrosion, e.g. by a fi lm of oil.
13
Explanation of symbols
6 Explanation of symbols
In this instruction manual, work to be carried out or important information is accentuated by
symbols. These symbols have the following meanings:
Note, information
Cleaning, care
Lubrication
Maintenance, repairs, adjustment, service work
(only to be carried out by technical staff)
14
Control elements
7 Controls
7
.01 On/off switch
● By turning on/off switch 1, the power
supply to the machine is switched on or
off.
1
Fig. 7 - 01
7.02 Foot switch
1
● Foot switches 1 and 2 have
the following functions:
Foot switch 1:
+1 = left clamp up/down
Foot switch 2:
+1 = right clamp up/down
2
+2 = sewing start
Fig. 7 - 02
15
Control elements
7.03 Control panel
The control panel is used to select seam programs, call up machine functions, change
parameters, control the different operating modes, as well as for reading error signals and
service settings.
1
2
3
Fig. 7 - 04
The control panel consists of display screen 1 with the function keys described below. The
display 1 consists of a two-row alphanumerical LCD display with 16 symbols per row. The
function keys 2 are located below and to the right of the display screen. The status of the
function keys and the machine operating modes are shown with LEDs in the corresponding
keys. Every time the function keys 2 are operated, a key tone sounds as confi rmation of the
input. If the input required is invalid, e.g. because the max. permissible value for the
parameter input has been reached, a double tone is audible. An SD-card reader for data
transfer is integrated.
7.03.01 Screen displays
Depending on the operating mode, on the screen 1 information is shown about the machine
status, program selection, sequence program progress, input parameters, as well as error signals (also see Chapter 11 Input).
● Depending on the operating mode, relevant data is displayed in combination with the ap-
propriate symbol or text, and can be altered directly.
● When the parameters are entered, the number of the parameter selected is shown with
the corresponding parameter value, see Chapter 11 .03 Parameter input.
16
● If faults occur in the sewing operation, a corresponding error signal appears in the display,
see Chapter 13.08 Error messages on the display.
Control elements
7.03.02 Display symbols
Program number
Speed
X Size factor X-direction (crosswise) in %
Y Size factor Y-direction (lengthwise) in %
Bobbin thread counter / piece counter
Enter
Machine memory
SD-memory card
7.03.03 Function keys
The functions keys described below are used essentially to switch machine functions on and
off. When the function is switched on, the diode in the key is illuminated.
If a corresponding value has to be fi xed for the activated function, this can be carried out
with the corresponding +/- keys 3.
By pressing and holding the corresponding +/- key, fi rstly the numerical value displayed above it is altered slowly. If the +/- key is pressed longer, the numerical value changes more
quickly. The respective +/- keys shown opposite are described below.
Menü
This function is used in the respective operating mode to scroll within the existing menus.
Wind
The bobbin thread winding function is called up, see Chapter 9.03 Winding the bobbin
thread.
Basic position
Work clamp and needle are positioned in the basic position and , if necessary, the thread
trimming function is activated.
Tacting backwards
Each time the key is pressed, the selected seam program is sewn stitch by stitch in reverse,
and the coordinates for each stitch are shown on the control panel.
17
Control elements
Tacting forwards
Each time the key is pressed, the selected seam program is sewn forwards stitch by stitch,
and the coordinates for each stitch are shown on the control panel.
Program stations
to
to
The function keys P1 to P8 are used to enter and select seam programs, see Chapter
9.06.02 Selecting the program station.
Direct program selection
This function is used to select a seam pattern. After selection, speed, stitch length and size
can be altered, see Chapter 9.06.01 Selecting and altering the seam pattern.
Sequences
The function keys C1 to C3 are used to enter and select sequences, see Chapter 9.06.03
Selecting a sequence.
TE
In the sewing mode, this key is used to change to the input mode. In the input mode this
key is used to acknowledge the input of program stations and sequences, and to change
into the sewing mode.
18
Mounting and commissioning the machine
8 Mounting and commissioning the machine
After unpacking the machine, check it for any transport damage. In case of damage, inform
the shipping company and the responsible PFAFF dealer.
The machine must only be mounted and commissioned by qualifi ed personnel!
All relevant safety regulations are to be observed!
8.01 Mounting
At the machine’s location, there must be a stable and horizontal surface as well as suitable
electricity and compressed air supplies (see chapter 3 Specifi cations).
2
1
2
Fig. 8 - 01
● Lift the machine with a forklift from the shipping pallet.
● Level the machine just above the ground, and adjust the feet accordingly.
● The table height can be adjusted at crank 1 after loosening screws 2.
19
Mounting and commissioning the machine
8.02 Mounting the spool holder
● Mount the spool holder according to
Fig. 8.02.
Fig. 8 - 02
8.03 Commissioning
● Before commissioning the machine, clean it thoroughly and lubricate it, or pour in oil,
see Chapter 12 Care and Maintenance!
● The machine, in particular the electric wires and pneumatic connection tubes, must be
examined for any damage.
● Have skilled personnel check if the machine can be operated with the available mains
voltage.
Do not operate the machine if there is any discrepancy.
20
The machine may only be connected to an earthed socket!
● Connect machine to the compressed air system.
The manometer on the air fi lter/lubricator unit must display a pressure of 6 bar.
If necessary, set to the correct value (see chapter 12.05 Checking / regulating air
compression).
Mounting and commissioning the machine
8.04 Switching the machine on/off
2
1
3
Fig. 8 - 04
● Check air pressure on pressure gauge 1 and, if necessary, adjust air pressure with
adjusting knob 2.
● Turn main switch 3 to position "I"
HOME
MOVE CARRIAGE
● The machine will drive into home position after the controls have been booted.
In programs with obstacles, the prompt "HOME MOVE CARRIAGESDSq, and the clamp
will have to be moved to the home position by hand (= needle in the rear left corner of
the clamp).
● After shifting the clamp manually, press the "Basic position" button.
Fig. 8 - 05
HOME
PUSH HOME KEY
● Carry out a test run, see Chapter 10 Sewing.
At fi rst commissioning of the machine, the zero points and
the potentiometer for motor speed reduction must be checked and set
(see chapter 8.05 and 8.06 ).
● To switch off the machine, turn main switch 3 to position "0".
21
Mounting and commissioning the machine
8.05 Check/adjust zero points
1
2
3
Fig. 8 - 09
Before commissioning the machine, or after changing the controller or one of
the initiators of the clamp drive, it is necessary to set the zero points.
● Unscrew material presser foot.
● Insert adjustment pin 1 into the needle bar and secure using screw 2.
● Screw on clamp setting gauge 3 (Order No. 95-295 500-05).
● Call up input mode (LED lights up).
● Call up parameter '608' by pressing the relevant +/- button.
● Enter the access code if available - see chapter 11 .04.01 Input access code.
22
NO VAL
608
● Confi rm the code input with the relevant +/- button.
Mounting and commissioning the machine
NO SM1 SM2
608 0 0
● Turn the handwheel to check whether adjustment pin 1 can be inserted into the
adjustment hole on gauge 3.
● Where required, adjust the position of the clamp by changing the SM1 + SM2
accordingly.
● Release screw 2 and remove adjustment pin 1.
● Unscrew setting gauge 3.
● Finish input by pressing the button TE.
8.06 Adjusting the potentiometer for speed reduction
NO MIN
209 314 285
● Switch machine on.
NO MAX
210 314 373
● Set lowest lift "0" on the setting wheel.
● Call up parameter "209" and press button "D+" to store the lower value.
● Set highest lift "9" on the setting wheel.
● Call up parameter "210" and press button "D+" to store the upper value.
23
Setting up
9 Preparation
9.01 Inserting the needle
All regulations and instructions in this Instruction Manual are to be observed!
Special attention is to be paid to the safety regulations!
All preparation work is only to be carried out by appropriately trained personnel!
Only use needles from the sys-
tem intended for the machine,
see Chapter 3 Specifi cations.
1
2
Fig. 9 - 01
● Switch on the machine.
● Call up the threading aid function.
Machine moves to thread-in position, sewing start is disengaged.
(when clamping with obstacles, the clamp must be pushed manually into thread-in posi-
tion).
● Loosen screw 1 and insert needle 2 as far as possible into the needle bar.
● Adjust needle 2 so that the long needle groove is pointing in the direction of the top
cover of the sewing head, and tighten screw 1.
24
● Move the machine to its basic position
Setting up
9.02 Winding the bobbin thread, regulating the winder tension
1
4
3
2
5
6
Fig. 9 -02
● Draw the thread from the reel stand through guide hole 1 into the bobbin winder tension
unit 2 and then behind the thread clamp 3.
● Cut off the thread in thread clamp 3. The thread is retained.
● Place empty bobbin 4 on the bobbin winder spindle 5.
● To switch on the bobbin winder, push up lever 6.
The bobbin is wound during sewing.
● The bobbin winder stops automatically, when the bobbin 4 is fi lled suffi ciently.
● Remove full bobbin 4 and cut off the thread in thread clamp 3.
● The tension of the thread on bobbin 4 can be adjusted on the bobbin winder tension unit
2.
● The volume of thread on bobbin 4 can be adjusted with screw 7.
● If separate winding is required, proceed as follows:
7
● Call up bobbin winding function.
● Start the winding function using the treadle or the sewing start button.
25
Setting up
9.03 Changing the bobbin / adjusting the bobbin thread tension
5 cm
2
1
3
Fig. 9 -03
● Call up the threading aid function.
Machine moves to thread-in position, sewing start is disengaged.
● Raise lever 1 and remove bobbin casing 2.
● Place the fi lled bobbin into the hook so that it turns in the direction of the arrow when
thread is pulled off.
● Close lever 1.
● Pass the thread through the slot under the spring according to Fig. 9 - 03a.
● Adjust the thread tension by turning screw 3.
Fig. 9 - 03a
● Move the machine to its basic position
26
Setting up
9.04 Threading needle thread/adjusting needle thread tension
2
1
Fig. 9 - 04
● Switch on the machine.
● Call up the threading aid function.
Machine moves to thread-in position, sewing start is disengaged.
● Thread the machine as shown in Fig. 9 - 04.
● Regulate the needle-thread tension by turning milled screw 1.
Secondary tension is regulated by turning the knurled thumb screw.
● Move the machine to its basic position
27
Setting up
9.05 Setting the lever pressure
1
Fig. 9 -05
● The lever pressure must be adjusted to the respective material to ensure perfect materi-
al feed.
● The max. lever pressure must not exceed 0.25 MPa.
● The lever pressure is adjusted at knob 1.
28
Setting up
9.06 Selecting a seam program
After the machine has been switched on, it is in its basic position and offers various possibili-
ties for selecting seam programs.
- Direct selection of the seam pattern and its individual adaptation by changing the speed
and stitch length.
- Selection of the seam program via a program station. For this purpose a seam pattern with
its respective speed and corresponding size factors must have been stored previously.
- With the selection of a sequence several seam programs are sewn after each other. For
this purpose a sequence must have been compiled beforehand from individual seam pro
grams (program stations).
9.06.01 Selecting and changing the seam pattern
● Switch on programme selection (LED lights up)
5 2700 3,0mm
● Select the desired seam pattern with the corresponding +/- key.
● Select the desired speed with the corresponding +/- key.
● Select the desired stitch length with the corresponding +/- key.
● To conclude the input, press the TE key or operate the pedal forwards (machine changes
to the sewing mode).
29
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