Pfaff 1243-712/02 User manual
INSTRUCTION MANUAL
296-12-18 354/002
Betriebsanleitung engl. 06.09
This instruction manual applies to machines from the
following serial numbers onwards:
# 2 565 145
1243-712/02
Industrial
®
Reprinting, copying or translation of PFAFF instruction manuals, whether in whole or in part,
is not permitted without our prior permission and not without written indication of the
source.
PFAFF Industrie Maschinen GmbH
Postfach 3020
D-67653 Kaiserslautern
Königstr. 154
D-67655 Kaiserslautern
Editing/illustrations
PFAFF
Dept. TES
Contents
Contents ...............................................................................Chapter - Page
1Safety ........................................................................................................................ 1 -1
1.01 Directives ...................................................................................................................1- 1
1.02 General notes on safety ............................................................................................. 1 - 1
1.03 Safety symbols .......................................................................................................... 1 - 2
1.04 Important notes for the user ...................................................................................... 1 - 2
1.05 Operating and technical staff ..................................................................................... 1 - 3
1.05.01 Operating staff ...........................................................................................................1- 3
1.05.02 Technical staff............................................................................................................ 1 - 3
1.06 Danger warnings........................................................................................................ 1 - 4
2Proper use ................................................................................................................ 2 - 1
3Specifications ........................................................................................................... 3 - 1
3.01 PFAFF 1243-712/02 ................................................................................................... 3 - 1
3.02 Models and subclasses.............................................................................................. 3 - 1
4Machine disposal ..................................................................................................... 4 - 1
5Transportation, packing and storage ...................................................................... 5 - 1
5.01 Transportation to customer’s premises ..................................................................... 5 - 1
5.02 Transportation inside customer’s premises ............................................................... 5 - 1
5.03 Disposal of packing materials..................................................................................... 5 - 1
5.04 Storage ......................................................................................................................5- 1
6Explanation of symbols ........................................................................................... 6 - 1
7Controls .................................................................................................................... 7 - 1
7.01 On/off switch ............................................................................................................. 7 - 1
7.02 Pedal .......................................................................................................................... 7 - 1
7.03 Top feed stroke adjustment ....................................................................................... 7 - 2
8Installation and commissioning .............................................................................. 8 - 1
8.01 Installation.................................................................................................................. 8 - 1
8.01.01 Adjusting the table height .......................................................................................... 8 - 1
8.01.02 Tensioning the v-belt.................................................................................................. 8 - 2
8.01.03 Fitting the upper V-belt guard .................................................................................... 8 - 2
8.01.04 Fitting the lower belt guard ........................................................................................ 8 - 3
8.01.05 Fitting tilt lock ............................................................................................................ 8 - 3
8.01.06 Fitting the synchronizer.............................................................................................. 8 - 4
8.01.07 Assembling the reel stand .......................................................................................... 8 - 4
8.01.08 Mountingthethread retainers ..................................................................................... 8 - 5
8.02 Initialoperation ........................................................................................................... 8- 5
8.03 Switching the machine on / off ................................................................................... 8 - 5
9Setting up ................................................................................................................. 9 - 1
9.01 Inserting the needle ................................................................................................... 9 - 1
9.02 Winding the bobbin thread, adjusting the thread tension .......................................... 9 - 2
Contents
Contents ...............................................................................Chapter - Page
9.03 Removing /inserting the bobbin case .......................................................................... 9 - 3
9.04 Threading the bobbin case / adjusting the thread tension ............................................ 9 - 3
9.05 Threadingneedlethread/adjustingneedle threadtension ............................................ 9 - 4
10 Care and maintenance ........................................................................................... 10 - 1
10.01 Servicing and maintenance intervals ........................................................................ 10 - 1
10.02 Cleaning the hook compartment and the hook ........................................................ 10 - 1
10.03 General lubrication ................................................................................................... 10 - 2
10.04 Lubricating the hook ................................................................................................ 10 - 3
10.05 Lubricating the needle head parts ............................................................................ 10 - 3
11 Adjustment ............................................................................................................. 11 - 1
11.01 Notes on adjusting ................................................................................................... 11 - 1
11.02 Tools, gauges and other accessories ....................................................................... 11 - 1
11.03 Abbreviations ........................................................................................................... 11 - 1
11.04 Adjustment of the basic machine ............................................................................ 11 - 2
11.04.01 Needle position in needle hole ................................................................................. 11 - 2
11.04.02 Needle height (preliminary adjustment) ................................................................... 11 - 3
11.04.03 Hook-to-needle clearance, needle rise, needle height and needle guard ................. 11 - 4
11.04.04 Bobbin opener.......................................................................................................... 11 -6
11.04.05 Safety coupling ........................................................................................................ 11 -7
11.04.06 Top feed lifting motion ............................................................................................. 11 - 8
11.04.07 Presser foot lift ........................................................................................................ 11 - 9
11.04.08 Needle-thread tension release ................................................................................. 11 - 10
11.04.09 Pressure of the lifting presser.................................................................................. 11 - 11
11.04.10 Thread check spring ................................................................................................. 11 - 12
11.04.11 Bobbin winder .......................................................................................................... 11 -13
11.05 Adjusting the thread trimmer -900/56 .................................................................. 11 - 14
11.05.01 Pre-adjusting the control cam .................................................................................. 11 - 14
11.05.02 Tripping lever ........................................................................................................... 11 - 15
11.05.03 Pawl ......................................................................................................................... 11 - 16
11.05.04 Engaging solenoid .................................................................................................... 11 - 17
11.05.05 Release trip ..............................................................................................................11-18
11.05.06 Engaging lever ......................................................................................................... 11 -19
11.05.07 Linkage rod .............................................................................................................. 11 - 20
11.05.08 Final adjustment of the control cam......................................................................... 11 - 21
11.05.09 Catch ........................................................................................................................ 11 - 22
11.05.10 Thread-catcher height .............................................................................................. 11 - 23
11.05.11 Knife......................................................................................................................... 11 - 24
11.05.12 Thread catcher reverse position............................................................................... 11 - 25
11.05.13 Bobbin-thread clamp spring ..................................................................................... 11 - 26
11.05.14 Adjusting the synchronizer ....................................................................................... 11 - 28
Safety
1 - 1
1 Safety
1.01 Regulations
This machine has been made according to the European regulations indicated in the
conformity and manufacturer’s declarations.
In addition to this instruction manual, please also observe all generally accepted statutory
and other legal requirements, including those of the user’s country, and the valid pollution
control regulations!
The locally valid regulations of the social insurance institution responsible for occupational
accidents, or other supervisory authorities, must be strictly adhered to!
1.02 General notes on safety
●The machine must only be operated when the instruction manual has been fully read and
understood, and only by operators who have had the necessary training!
●All notes on safety and the instruction manual of the motor manufacturer must be read
before the machine is put into operation!
●All notices on the machine referring to danger and safety must be observed!
●The machine must be used for the purpose it is intended for and must not be operated
without its safety devices; all regulations relevant to safety must be adhered to.
●When part sets are changed (e.g. needle, presser foot and needle plate), during
threading, when the workplace is left unattended and during maintenance work, the
machine must be isolated from the power supply by pressing the on/off switch or
removing the plug from the mains!
●Daily maintenance work must only be carried out by appropriately trained persons!
●Repairs and special maintenance work must only be carried out by qualified technical
staff or persons with the appropriate training! Exceptions to this are only allowed for
adjustment and function checks by appropriately trained personnel!
●Repair work and special maintenance work must only be carried out by technical
personnel or by persons with the appropriate training!
●Work on the electrical equipment must only be carried out by technical staff who are
qualified to do so!
●Work on parts or equipment connected to the power supply is not permitted! The only
exceptions to this are specified in regulations EN 50110.
●Conversion or modification of the machine must only be carried out under observation of
all relevant safety regulations!
1 - 2
Safety
●Only spare parts which have been approved by us are to be used for repairs! We draw
special attention to the fact that spare parts and accessories not supplied by us have not
been subjected to testing nor approval by us. Fitting and/or use of any such parts may
cause negative changes to the design properties of the machine. We shall not accept
any liability for damage caused by the use of non-original parts.
1.03 Safety symbols
Danger!
Special points to observe.
Danger of injury to operating or technical staff!
I
Caution
Do not operate without finger guard and safety devices.
Before threading, changing bobbin and needle, cleaning
etc. switch off main switch.
1.04 Important notes for the user
●This instruction manual is part of the equipment of the machine and must be available to
the operating staff at all times.
●The instruction manual must be read before the machine is operated for the first time.
●Both operating and technical staff must be instructed on the safety devices of the machine
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 working
order.
●The user must ensure that only authorized persons operate and work on the machine.
For further information please refer to your PFAFF agency.
Safety
1 - 3
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
machine and for removing any disturbances in the sewing area.
The operating staff must be sure to observe the following items:
●always observe the notes on safety in this instruction manual in their work!
●refrain from any working methods which adversely effect the safety of the machine!
●avoid wearing loose clothing or jewelry such as necklaces or rings!
●also make sure that only authorised persons are allowed near the danger area of the
machine
●immediately report to the user any changes to the machine that may affect its safety!
1.05.02 Technical staff
Technical staff are persons who have been trained in electrical engineering, electronics,
pneumatics and mechanical engineering. They are responsible for lubricating, servicing,
repairing and adjusting the machine.
The technical staff must be sure to observe the following items:
●always observe the notes on safety in this instruction manual in their work!
●press the on/off switch before carrying out adjustment and repair work, and ensure it
cannot be switched on again unintentionally, or isolate the machine from the power
supply by removing the mains plug!
●never work on parts or equipment still connected to the power supply! Exceptions to this
are only permissible according to regulations EN 50110;
●replace all safety covers after carrying out maintenance or repair work and, if applicable,
close the electrical control box again!
1 - 4
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 or fingers in the sewing area during sewing!
Danger of injury by the needle!
While setting or adjusting the machine do not leave any objects on the table
nor in the needle plate area! Objects may be trapped or flung out of the
machine!
When a mechanically operated clutch motor without actuation lock is
switched off, always wait until the motor has stopped! Danger of injury!
Do not operate the machine without take-up lever guard 1!
Danger of injury by the movement of the take-up lever!
Do not operate the machine without belt guard 2and 3!
Danger of injury from running drive belts!
Do not operate the machine without finger guard 4!
Danger of injury from the up- and downward movement of the needle!
Do not operate the machine without tilt lock 5!
Danger of crushing between sewing head and table top!
Fig. 1 - 01
12
4
3
5
Proper use
2 - 1
2 Proper use
The PFAFFPFAFF
PFAFFPFAFF
PFAFF 1243-712/02 is a single-needle, lockstitch, flatbed sewing machine for industrial
stitching work.
Any use of this machine which is not approved by the manufacturer shall be
considered as improper use! The manufacturer shall not be held liable for any
damage arising out of improper use! Proper use shall also be considered to
include compliance with the operation, adjustment, service and repair
measures specified by the manufacturer!
Technische Daten
3 - 1
3 Specifications
3.01 PFAFF 1243-712/02◆
Stitch type:.................................................................................................. 301 (lockstitch)
Model:............................................................................................................................... B
Needle system: ............................................................................................................. 190
Needle size in 1/100 mm: ......................................................................................80 – 100
Max. thread size (synthetic▲): ...................................................................................... 40/3
Max. speed::
PFAFF 1243-712/02 ......................................................................................... 1000 s.p.m.
Handwheel eff. dia. .................................................................................................. 90 mm
Machine dimensions
Length:...................................................................................................... approx. 530 mm
Width: ....................................................................................................... approx. 177 mm
Height (above table): ................................................................................. approx. 265 mm
Clearance width: .................................................................................................... 270 mm
Clearance height: ................................................................................................... 115 mm
Fabric clearance:
PFAFF 1243-712/02 ........................................................................................ max. 20 mm
Net weight (sewing head): ..........................................................................................42 kg
Power supply: ............................................................................ See motor service manual
Power consumption: .................................................................. See motor service manual
Fuse protection: ......................................................................... See motor service manual
Working noise level:
Emission level at workplace
PFAFF 1243-712/02, at a speed of 800 spm.: ........................................................78 dB(A)
Noise measurement in accordance with DIN 45 635-48-A-1
◆Subject to alteration
▲ or comparable thicknesses of other thread types
3.02 Models and subclasses
Model B: .................................................................. for work on medium-weight materials
Accessories:
Subclass –900/56 ........................................................................... Thread trimming device
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