Pfaff 333-712/02 User manual

Instruction manual
333
296-12-18 761/002
Betriebsanleitung engl. 06.03
This instruction manual applies to machines from the
following serial numbers onwards:
# 2670704
-712/02
-712/03

This Instruction manual is valid for all models and subclasses listed in the
chapter "Specifications".
The reprinting, copying or translation of PFAFF Instruction Manuals, whether in whole or in
part, is only permitted with our previous permission and with written reference to the source.
PFAFF Industrie Maschinen AG
Postfach 3020
D-67653 Kaiserslautern
Königstr. 154
D-67655 Kaiserslautern
Redaktion / Illustration
Verlag Technische Dokumentation
D-77901 Lahr

Contents
Contents ..................................................................................Chapter - Page
1Safety ............................................................................................................................ 1 - 1
1.01 Regulations ................................................................................................................... 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 Notes for 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 333 ..................................................................................................................... 3 - 1
3.02 Possible versions and subclasses ................................................................................. 3 - 1
4Disposal of the machine.............................................................................................. 4 - 1
5Transportation, packing and storage ......................................................................... 5 - 1
5.01 Transport zum Kundenbetrieb ........................................................................................ 5 - 1
5.02 Transportation to customer's premises ......................................................................... 5 - 1
5.03 Disposal of packing materials ........................................................................................ 5 - 1
5.04 Storage .......................................................................................................................... 5 - 1
6Explanation of the symbols ........................................................................................ 6 - 1
7Controls........................................................................................................................7- 1
7.01 On/off switch ................................................................................................................. 7 - 1
7.02 Pedal (on versions with one pedal) ................................................................................ 7 - 1
7.03 Pedals (on version with two pedals) .............................................................................. 7 - 2
7.04 Top feed stroke adjustment ........................................................................................... 7 - 2
7.05 Control panel (only PFAFF 333-712/02) .......................................................................... 7 - 3
7.05.01 Screen displays ............................................................................................................. 7 - 3
7.05.02 Function keys ................................................................................................................ 7 - 3
8Installation and commissioning ................................................................................. 8 - 1
8.01 Installation ..................................................................................................................... 8 - 1
8.01.01 Adjusting the table height .............................................................................................. 8 - 1
8.01.02 Mounting the thread retainers ........................................................................................ 8 - 2
8.01.03 Assembling the reel stand ............................................................................................. 8 - 2
8.01.04 Fitting the sewing lampts .............................................................................................. 8 - 2
8.02 Tension the V-belt/fit V-belt guard (only PFAFF 333-712/03) ........................................... 8 - 3
8.02.01 Tensioning the v-belt ...................................................................................................... 8 - 3
8.02.02 Fitting the upper belt guard ............................................................................................ 8 - 3
8.02.03 Unteren Keilriemenschutz montieren ............................................................................. 8 - 4

Contents
Contents ..................................................................................Chapter - Page
8.03 Mounting the flange motor (PFAFF 333-712/02) ............................................................. 8 - 4
8.03.01 Mounting the flange motor to the bearing plate .............................................................. 8 - 4
8.03.02 Mounting the flange motor to the machine .................................................................... 8 - 5
8.03.03 Mounting the belt guard of the flange motor .................................................................. 8 - 5
8.04 Connecting the plug-in connections and earth cables (only PFAFF 333-712/02) ............. 8 - 6
8.05 Commissioning ............................................................................................................. 8 - 6
8.06 Switching the machine on/off ........................................................................................ 8 - 6
8.07 Basic setting of the machine drive unit (only PFAFF 333-712/02) ................................... 8 - 7
9Setting up..................................................................................................................... 9- 1
9.01 Inserting the needle ....................................................................................................... 9 -1
9.02 Winding the bobbin thread, regulating the winder tension .............................................. 9 - 2
9.03 Threading the bobbin thread and regulating the bobbin thread tension ............................ 9 - 3
9.04 Threading the bobbin thread and regulating the bobbin thread tension ............................ 9 - 4
9.05 Threading the gimp thread ............................................................................................. 9 - 4
9.06 Threading needle thread/adjusting needle thread tension
(on the Pfaff 333-712/02) ............................................................................................... 9 - 5
9.07 Threading needle thread/adjusting needle thread tension
(on the PFAFF 333-712/03) ............................................................................................ 9 - 6
9.08 Setting the stitch count function for the bobbin thread control
(only PFAFF 333-712/02) ................................................................................................ 9 - 7
10 Sewing ........................................................................................................................10- 1
11 Care and maintenance ................................................................................................ 11 - 1
11.01 Care and maintenance intervals ...................................................................................11 - 1
11.02 Cleaning .......................................................................................................................11 - 2
11.03 General oiling ................................................................................................................11 - 3
11.04 Oiling the sewing hook .................................................................................................11 - 4
12 Adjustment ..................................................................................................................12 - 1
12.01 Notes on adjustment ....................................................................................................12 - 1
12.02 Tools, gauges and other equipment for adjusting ..........................................................12 - 1
12.03 Abbreviations ................................................................................................................12 - 1
12.04 Adjustment of the basic machine .................................................................................12 - 2
12.04.01 Needle position in needle hole ......................................................................................12 - 2
12.04.02 Needle height (preliminary adjustment) .........................................................................12 - 3
12.04.03 Hook clearance, needle rise and needle height .............................................................12 - 4
12.04.04 Top feed lifting motion ..................................................................................................12 - 5
12.04.05 Top feed stroke .............................................................................................................12 - 6
12.04.06 Needle-thread tension release (on the PFAFF 333-712/02) ............................................12 - 7
12.04.07 Needle-thread tension release (on the PFAFF 333-712/03) ............................................12 - 8
12.04.08 Thread check spring ..................................................................................................... 12 - 9
12.04.09 Bobbin winder ..............................................................................................................12 - 10

Contents
Contents ..................................................................................Chapter - Page
12.04.10 Pressure of the lifting presser .......................................................................................12 - 11
12.05 Adjusting the thread trimmer –900/56 ...........................................................................12 - 12
12.05.01 Control cam (preliminary adjustment) ...........................................................................12 - 12
12.05.02 Control lever height .......................................................................................................12 - 13
12.05.03 Control pin ....................................................................................................................12 - 14
12.05.04 Engaging solenoid .........................................................................................................12 - 15
12.05.05 Control pin height ..........................................................................................................12 - 16
12.05.06 Front position of thread catcher ....................................................................................12 - 17
12.05.07 Lateral position of thread catcher ..................................................................................12 - 18
12.05.08 Control cam (final adjustment) ...................................................................................... 12 - 19
12.05.09 Knife .............................................................................................................................12 -20
12.05.10 Cutting test ...................................................................................................................12 - 21
12.05.11 Adjusting the synchronizer (PFAFF 333-712/03) ............................................................12 - 22
12.05.12 Setting the parameters for machine positions (PFAFF 333-712/02) ...............................12 - 22
12.06 Parameter settings .......................................................................................................12 - 23
12.06.01 Selecting the user level (only PFAFF 333-712/02) .........................................................12 - 23
12.06.02 Example of a parameter input (only PFAFF 333-712/02) ................................................12 - 24
12.06.03 List of parameters ........................................................................................................12 - 25
12.07 Internet update of the machine software ......................................................................12 - 26
12.08 Reset / Cold start (only PFAFF 333-712/02) .................................................................12 - 27
13 Wearing parts .............................................................................................................13 - 1
14 Circuit diagrams .........................................................................................................14 - 1

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!
●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.

Safety
1- 2
1.03 Safety symbols
Danger!
Special points to observe.
Danger of injury to operating or technical staff!
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.
Caution
Do not operate without finger guard and safety devices.
Before threading, changing bobbin and needle, cleaning
etc. switch off main switch.
I

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!

Safety
1- 4
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 run the machine without take-up lever guard 1!
Danger of injury by moving take-up lever!
Do not operate the machine without belt guard 2!
Danger of injury from the running drive belts!
Do not run the machine without finger guard 3!
Danger of injury by up and down movement of needle!
Do not operate the machine without cylinder bed cover 4, or always operate it
with flap 5closed. Danger of injury from the rotating hook.
Fig. 1 - 01
12
4
3
94-010
5

Proper use
2 - 1
2 Proper use
The PFAFF 333-712/02 (with integrated sewing motor) and the PFAFF 333-712/03 are single-
needle, lockstitch, cylinder bed sewing machines for industrial lockstitch darning 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!

Specifications
3 - 1
3 Specifications
3.01 PFAFF 333◆
Stitch type: .................................................................................................. 301 (lockstitch)
Machine model:................................................................................................................. B
Needle system ............................................................................................................... 190
Needle size in 1/100 mm: ...................................................................................... 80 to 100
Max. thread size (synthetic▲): ....................................................................................... 40/3
Max. sewing speed.*:
PFAFF 333-712/02 ........................................................................................... 1,000 s.p.m.
PFAFF 333-712/03 ........................................................................................... 1,500 s.p.m.
Effective dia. of balance wheel ................................................................................. 90 mm
Dimensions of the machine:
Cylinder-bed end dia.: ............................................................................................... 51 mm
Cylinder-bed circumference:: ...................................................................... approx. 165 mm
Length: ....................................................................................................... approx. 770 mm
Breadth: ...................................................................................................... approx. 380 mm
Height (above table) .................................................................................... approx. 630 mm
Clear workspace length: ......................................................................................... 265 mm
Clear workspace height: ......................................................................................... 115 mm
Max. fabric clearance:
PFAFF 333-712/02 .................................................................................................... 20 mm
PFAFF 333-712/03 .................................................................................................... 11 mm
Net weight (sewing head): .............................................................................. approx. 38 kg
Mains voltage: .................................................................... see instruction manual of motor
Max. power input: .............................................................. see instruction manual of motor
Power supply fuse: ............................................................. see instruction manual of motor
Ambient noise level:
Workplace noise level, PFAFF 333-712/02, at a speed of 800 r.p.m. ...................... 78 dB(A)
Workplace noise level, PFAFF 333-712/03, at a speed of 1,200 r.p.m. ................... 80 dB(A)
Noise measurement according to DIN 45636-48-A-1
◆Subject to technical alterations
▲ Or comparable sizes of other thread types
* Depending on material and operation
3.02 Possible versions and subclasses
Version B: .............................................................................. For sewing medium materials
Work aids:
Subclass –900/51 ........................................................................................ Thread trimmer

Disposal of the machine
4 - 1
4 Disposal of the machine
●The proper disposal of the machine is the responsibility of the user.
●The materials used for the machine are steel, aluminium, brass and various plastics. The
electrical equipment consists of plastics and copper.
●The machine must be disposed of in accordance with applicable local pollution control
regulations. If necessary, a specialist is to be consulted.
Special care is to be taken that parts soiled by lubricants are separately disposed
of in accordance with the applicable local environmental pollution control
regulations!

Transportation, packing and storage
5 - 1
5 Transportation, packing and storage
5.01 Transport zum Kundenbetrieb
Die Maschinen werden komplett verpackt geliefert.
5.02 Transportation to customer's premises
The machines are delivered completely packed.
5.03 Disposal of packing materials
The packing materials of this machine comprise paper, cardboard and VCE fibre. Proper dis-
posal 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 film of oil.

Explanation of the symbols
6 - 1
6 Explanation of the symbols
In this Instruction Manual, work to be carried out and important information are drawn to your
attention by symbols. The symbols have the following meanings:
Note, information
Cleaning, care
Lubrication
Servicing, repairing, adjustment, maintenance
(only to be carried out by specialist personnel)

Controls
7 - 1
Fig. 7 - 01
7 Controls
7.01 On/off switch
●Switch the machine on or off by turning
on/off switch 1.
The illustrated on/off switch is
fitted to machines with Quick
motors. If other motors are
used, a different switch may be
fitted.
77
-
005
1
7.02 Pedal (on versions with one pedal)
0= Neutral position
1= Sewing
2= Thread trimming (on machines with
thread trimmer –900/51) and presser
foot lifting.
For further pedal functions
please refer to the instruction
manual of the motor
manufacturer.
Fig. 7 - 02
0
1
2

Controls
7 - 2
1
3
2
+
-
7.04 Top feed stroke adjustment
Switch off the machine!
Danger of injury due to
unintentional starting of the
machine!
●The top feed stroke is adjusted by re-
positioning lever 1. To do this, remove
cover 2 at the rear side of the machine
and loosen screw 3.
●After adjustment, tighten screw 3and
close cover 2.
Fig. 7 - 04
7.03 Pedals (on version with two pedals)
0= Neutral position
1= Sewing
2= Thread trimming (on machines with
thread trimmer –900/51).
3= Raise presser foot
For further pedal functions
please refer to the instruction
manual of the motor
manufacturer.
Fig. 7 - 03
0
1
3
2

Controls
7 - 3
7.05 Control panel (only PFAFF 333-712/02)
The control panel consists of display 1and the function keys described below. The display 1
consists of a single-line alpha-numerical, 7 segment LCD display with 8 symbols. The texts 2,
located above and next to the LCD display, show the respective status of the function keys
and the operating status of the machine. The control panels switches on all LCD-segments
and the horn automatically for a short time during the power-on phase, after which the lette-
ring PFAFF appears on the display, until the higher-ranking control unit sends commands to
the control panel.
The function keys are located around the display 1. They are foil-packed without permanent
marking and without contact signal. Fixed functions are allocated to the keys, see Chapter
7.06.02 Function keys.
7.12.01 Screen displays
●Activated functions are displayed with a triangular marking 3below or next to the
respective function key.
●In the sewing mode all relevant sewing data is displayed and can be changed directly,
depending on the status of the machine, see also Chapter 10 Sewing.
●During the parameter input the selected parameter number with the corresponding value is
displayed, see Chapter 12.06.02 Example of a parameter input.
7.12.02 Function keys
The function keys described below are used basically to switch machine functions on and off.
Each time a key is pressed, this must be confirmed by at least one beep tone. Irrespective of
the machine mode a double beep signal is given if invalid keys are pressed or maximum
values reached.
If a corresponding value has to be set for the activated function, this is carried out with the
corresponding +/- key. By pressing and holding the corresponding +/- key, the relevant
numerical value 4is changed slowly to begin with. If the corresponding +/- key is held down
longer, the values change more quickly.
ABCD
3333
1
2
3
SPEED TE ERROR
4

Controls
7 - 4
Start backtack
●This function key is not used on this machine.
End backtack
●This function key is not used on this machine.
Needle position
●If this key is pressed the "needle raised after sewing stop" function is switched on or off.
When the function is switched on, the needle positions at t.d.c. after sewing stops.
Foot position after stop
●This function key is not used on this machine.
Foot position after trimming
●This function key is not used on this machine.
Thread trimmer
●If this key is pressed the thread trimming function is switched on or off.
Darning program
●This function key is not used on this machine.
Counted seam
●This function key is not used on this machine.
TE/Speed
●If this key is pressed once the speed limit for the sewing mode is activated.
●If this key is pressed twice (within 5 seconds) the machine changes from sewing to input
mode.

Installation and commissioning
8 - 1
8 Installation and commissioning
The machine must only be installed and commissioned by qualified personnel!
All relevant safety regulations must be strictly adhered to!
If the machine is delivered without a table, be sure to use a stand and table that
will reliably support the weight of the machine with its motor.
It is very important to ensure that the stand of the machine is firm and steady,
also during sewing.
8.01 Installation
The site where the machine is installed must be provided with suitable connections for
electric current and compressed air. It must be ensured that the standing surface of the
machine site is firm and horizontal and that sufficient lighting is available.
For packing and transportation reasons the table top is in the lowered position.
The table height is adjuted as described below.
8.01.01 Adjusting the table height
●Loosen screws 1and 2and set the table at the required height.
●Fully tighten screw 1.
●Set the required pedal position and tighten tighten screw 2.
Fig. 8 - 01
94-002
1
1
2

Installation and commissioning
8 - 2
8.01.03 Assembling the reel stand
●Assemble the reel stand as shown in
Fig. 8-03.
●Afterwards insert the stand in the hole in
the table top and secure it with the nuts
provided.
Fig. 8 - 03
8.01.04 Fitting the sewing lampt▲
●Screw the sewing lamp onto the table top (wood screws 5 x 35) and have it connected by
a mechanic.
▲ The sewing lamp is available as an option.
8.01.02 Mounting the thread retainers
●Screw the thread retainers 1and 2into
the tapped holes on the top side of the
machine and fix them with nuts 3and 4.
When mounting the thread
retainers care must be taken
to see that the thread retainer
with the weak spring
(recognizable from the engraving
91-141 873-91 on the top side) is
mounted in position ➊.
Fig. 8 - 02
4
1
3
2
➊