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® Industrial 1571 1574 INSTRUCTION MANUAL 1591 This instruction manual applies to machines from the following serial numbers onwards: # 7 250 050 296-12-19 225/002 Betriebsanleitung engl. 10.13...
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This Instruction Manual is valid for all models and subclasses listed in the chapter "Specifi cations ". 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.
Knee switch ........................Knee lever ........................Lever for raising the roller presser ................Swing out roller presser ....................19 Edge trimmer -725/04 for 1571 ..................Edge trimmer -725/04 for 1591 ..................Control panel ........................Displays on the screen ....................22 Function keys ........................
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Removing/Inserting the bobbin case ................40 Threading the bobbin case/Adjusting the bobbin thread tension ........40 Threading the needle thread and regulating its tension on model 1571 and 1591 ..41 Threading the needle thread and regulating its tension on model 1574 ......42 Entering the stitch length ....................
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Index Contents ................. Chapter - Page 01.02 Summary of the seam program inputs ................ 54 Seam program input variants ..................57 Altering existing seam programs................. 57 Deleting seam programs ..................... 60 Seam programming examples ..................61 05.01 An example for seam program input ................61 05.02 Seam input example using t he Teach In method ............
Safety Safety 1.01 Directives This machine is constructed in accordance with the European regulations contained in the conformity and manufacturer’s declarations. In addition to this Instruction Manual, observe also all generally accepted, statutory and other regulations and legal requirements and all valid environmental protection regulations! The regionally valid regulations of the social insurance society for occupational accidents or other supervisory organisations are to be strictly adhered to! General notes on safety...
It is the obligation of the user to ensure that none of the safety mechanisms are removed or deactivated. It is the obligation of the user to ensure that only authorized persons operate and work on the machine. Further information can be obtained from your PFAFF agent.
Safety 1.05 Operating and specialist personnel Operating personnel .05.01 Operating personnel are persons responsible for the equipping, operating and cleaning of the machine as well as taking care of faults arising in the sewing area. The operating personnel is obliged to observe the following points and must: always observe the Notes on Safety in the Instruction Manual! never use any working methods which could limit the level of safety in using the machine!
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Safety Danger waynings A working area of 1 meter is to be kept free both in front of and behind the machine while it is in operation so that it is always easily accessible. Never reach into the sewing area while 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! Fig.
PFAFF 1571 Post to the left of the needle. PFAFF 1591 Post to the right of the needle. The PFAFF 1574 is a high-speed, two-needle postbed sewing machines with a forwards and reverse feeding feed wheel and roller presser. The machines are used for sewing lockstitch seams in the leather and upholstery industries.
(Noise measurement in accordance with DIN 45 635-48-A-1, ISO 11204, ISO 3744, ISO 4871) ■ model 1571 and 1591, model B at a speed of 2800 spm.: ......L = 80 dB(A) ■ model 1574 model B at a speed of 2800 spm.: ..........L = 81 dB(A) ■...
134 - 35 ▲ or similar strengths of other types of thread Possible models and subclasses PFAFF 1571, 1574, 1591 Model B ................. For sewing medium-weight materials PFAFF 1574, 1591 Model C ................For sewing medium-heavy materials PFAFF 1571, 1574 Model C/D .................
Disposal of Machine 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 mat- erials. The electrical equipment comprises plastic materials and copper. The machine is to be disposed of according to the locally valid pollution control regula- tions;...
Transportation, packing and storage Transportation, packing and storage Transportation to customer's premises The machines are delivered completely packed. 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.
Explanation of symbols 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)
Controls Controls Main switch Turn the machine on and off by turning main switch 1. Fig. 7 - 01 Keys on the machine head As long as key 1 is pressed in the sewing mode, the machine sews in reverse. With parameters "203"...
Controls Bobbin thread monitoring with stitch counting Before reaching the preset number of of stitches, LED 1 flashes. After any key of control panel has been pressed, the stitch counting begins anew. Presetting the number of stitches, see Chapter 9.11 Set- ting the stitch counting function for bobbin thread monitoring.
Controls Knee switch By operating knee switch 1 it is possible to choose between 2 preset amounts of fullness or 2 stitch lengths. In the programmed sewing mode it is possible to switch to the next seam section with knee switch 1. The function of knee switch 1 must be switched on with the control panel (see chapter 10...
Controls Lever for raising the roller presser The roller presser is raised by turning lever 1. Fig. 7-07 shows the 1574. Fig. 7 - 07 Swing out roller presser When roller presser 1 is raised, it is possible to disengage it by pulling it down slightly.
Controls Edge trimmer -725/04 for 1571 Keep your hands away from the moving knife! Danger of injury! Switch on knife drive: Move lever 1 backwards. The knife moves into operating position. Switch off knife drive: Press lever 1. The knife swings backwards.
Controls Edge trimmer -725/04 for 1591 Fig. 7 - 10 Keep your hands away from the moving knife! Danger of injury! Switch on knife drive: Move lever 1 backwards. The knife moves into operating position. Switch off knife drive: Press lever 1. The knife swings backwards. Switch on edge guide: Swing edge guide 2 into position by hand and press lever 3.
Controls Control panel The control panel is used to display and call up the machine functions for setting up and for sewing operation, for entering parameter values and for reading error messages and service settings. Fig. 7 - 11 The control panel has the following control and display elements: The display screen 1 consists of a two-line, alphanumerical LCD display with 16 symbols per line and is used to show relevant information and selection parameters.
Controls +/- keys .11.02 The selection and changing of setting values (e.g. entering the backtack stitches) can be car- ried out using the corresponding +/- keys. By pressing and holding the relevant +/- key, the numerical value displayed above it is altered slowly. If the +/- key is pressed longer, the nu- merical value changes more quickly.
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Controls Speed With this key for each seam section a maximum speed can be set, which is only activated in the relevant seam section. Reverse sewing (only for programmed sewing) If this key is pressed, the reverse sewing function is switched on or off. Program interrupt If this key is pressed, the automatic process of a sewing program is interrupted, the stitch count is switched off and some procedures varied.
Installation and commissioning 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 top that can hold the weight of the machine with its motor.
Installation and commissioning Fitting the tilt lock .01.02 Switch off the machine! Danger of injury if the machine is the machine is started accidentally! , provided Screw on tilt lock parts 1 in the accessories, using screws . Do not operate the machine without tilt lock 1.
Installation and commissioning Mounting the flange motor Mounting the flange motor to the bearing plate .02.01 Fig. 8 - 04 Attach bearing plate 1 to motor 2 with screws 3 as shown in Fig. 8 - 04. Remove the wedge from motor shaft 4. Attach angle bracket 5 with screws 6.
Installation and commissioning Connecting the plug-in connections and earth cables .02.03 Fig. 8 - 06 Connect all plugs as labelled to the control box 1. Screw the earth cable from the sewing head to earth point A. Screw the earth cable 2 from the motor to earth point B. Connect earth point C and earth point A with an earth cable.
Installation and commissioning Mounting the toothed belt / .02.04 Basic position of the machine drive unit on the 1571 and 1591 Switch on the machine. Press TE/Speed key twice to select the input mode. Select the parameter group "600" by pressing the corresponding +/- key.
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Installation and commissioning Fig. 8 - 07 Swing the bearing plate 6 of the motor, so that the belt 5 is tightened. In this position tighten screws 7 and screws 8. Turn the balance wheel in sewing direction until the needle point descending from above, is level with the top edge of the needle plate and re-check the value.
Installation and commissioning Mounting the toothed belt / Basic position of the machine drive unit on the 1574 .02.05 • In this position fit toothed belt 5 (Fig. 8 - 08). • Swing the bearing plate 6 of the motor, so that the toothed belt 5 is tensioned. •...
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Installation and commissioning • Switch on the machine. • Press TE/Speed key twice to select the input mode. • Select the parameter group "600" by pressing the corresponding +/- key. • Confirm the selection by pressing the corresponding +/- key. •...
Installation and commissioning • Loosen screws 10 of the synchronizer. Hold the synchronizer shaft and turn the balance wheel in sewing direction until the needle point, descending from above, is level with the top edge of the needle plate. • Tighten the screws of the synchronizer.
Installation and commissioning Connecting the safety switch .02.07 Connect plug 1 of safety switch 2 as shown in Fig. 8-11. When the machine head is tilted back,the safety switch prevents the machine from starting when the main switch is on. Fig.
Installation and commissioning Fitting the reel stand Fit the reel stand as shown in Fig. 8-12 Afterwards insert the stand in the hole in the table top and secure it with the nuts provided. Fig. 8 - 12 Commissioning Check the machine, particularly the electrical wiring, for any damage. Clean the machine thoroughly and then oil it or fill in oil (see Chapter 12 Care and maintenance).
Loosen screw 2 and insert the needle as far as possible. The long groove must face to the right on model 1571 and to the left on model 1591. Tighten screw 2 and swing roller presser 1 back into position.
Setting up Winding the bobbin thread; adjusting the primary thread tension Fig. 9 - 03 Place an empty bobbin 1 onto bobbin winder spindle 2. Thread the bobbin as shown in Fig. 9 - 03 and wind it clockwise around bobbin 1 a few times.
Setting up Removing/Inserting the bobbin case Switch the machine off! Danger of injury if the machine is started accidentally! Removing the bobbin case: Open the post cap. Raise latch 1 and remove bobbin case 2. Inserting the bobbin case: Insert bobbin case 2. Close the latch and close the post cap.
Danger of injury if the machine is started accidentally! Thread the needle thread as shown in Fig. 9-06. On model 1571 the needle is threaded from the right to the left, and on model 1591 from the left to the right.
Setting up Threading the needle thread and regulating its tension on model 1574 Fig. 9 - 07 Switch the machine off! Danger of injury if the machine is started accidentally! Thread both needle threads as shown in Fig. 9-07. The left needle is threaded from the right to the left, and the right needle from the left to the right.
Setting up Entering the stitch length The stitch length is set by adjusting the feed strokes of the roller presser and the feed wheel. For the application of fullness, the feed stroke of the roller presser must be larger or smaller than the feed stroke of the feed wheel.
Setting up Entering the start and end backtacks Switch machine on. Press the start and/or end backtack keys to switch on the corresponding function. (LED lights up) By pressing the Scroll key switch to the input menu for the start and end backtacks. By pressing the corresponding +/- key select the desired value for the number of forward stitches (A) of the start backtack.
Setting up Entering/changing the code number Switch on the machine. Select the input mode by pressing the TE/Speed key twice. By pressing the corresponding +/- key select the parameter group "800". Confirm the selection by pressing the corresponding +/- key. CODE: 1500 Enter the code number by pressing the corresponding keys (factory code setting is...
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Provided that the machine is not turned off, all parameters can be accessed without re-entering the template code. Remember the code! Without the corresponding code, protected functions cannot be called up! In this case request support from the PFAFF service centre.
Setting up Setting the stitch count function for bobbin thread control Switch on the machine. Select the input mode by pressing the TE/Speed key twice(LED lights up). By pressing the corresponding +/- key select the parameter "105". 1000 Set the number of stitches to be sewn with one bobbin by pressing the corresponding +/- keys.
Setting up Inserting and removing the SD-memory card Inserting the SD-memory card Open cover 1. Insert SD-memory card 2 into the card slot with the label at the front. Close cover 1 again. Use only memory cards formatted FAT 16 2 GB max.
Sewing Sewing In sewing mode all settings relevant for the sewing operation are shown in the display. Functions can be switched on or off by pressing the key, values for start and end backtacks or placed stitch can be altered directly. In this mode a difference is made between manual sewing and programmed sewing.
Sewing Programmed sewing and 2) and freely programmable sewing programs (program numbers 3-99). ber of stitches or fullness. The respective 2 or 3 seam sections are switched using the knee switch function, see also Chapter 7.05 Knee switch designed as running programs and can be concluded by the pedal function, see also Chapter 7.04 Pedal.
Sewing Other programmed sewing functions, also see Chapter 7.11.03 Function keys: Stitch placement function Raised roller presser after thread trimming Knee switch function on/off Thread trimming on/off Backtack suppression Seam section speed on/off Start backtack on/off Reverse sewing direction on/off End backtack on/off Program interruption Raised needle position on/off...
Sewing Error messages If an error occurs, the text "ERROR" appears on the display, together with an error code and short instructions. An error message is caused by incorrect settings, defective elements or seam programs and by overload conditions. For an explanation of the error codes see Chapter 13.09 Explanation of the error messages.
Input Input Summary of the functions in the input mode The input mode is selected by pressing the TE/Speed key twice. In the input mode a difference is made between parameter input and seam program input. After selecting the input mode, use the PM key to move into the seam program input. Summary of the parameter functions .01.01 Select the parameter group (corresponding +/- key)
Input Summary of the seam program inputs .01.02 Select the seam program input function Select the program number (corresponding +/- key) Select the input variant Seam program input/alteration Confirm selection (Enter) Seam section Stitch length (feed stroke) roller presser Stitch length (feed stroke) feed wheel Scroll (only if following functions are activated) Seam section Max.
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Input Select the input variant Seam input with Teach In Confirm selection (Enter) Seam section Stitch length (feed stroke) roller presser Stitch length (feed stroke) feed wheel Scroll (only if following functions are activated) Seam section Max. speed Stitch placement position Scroll (only if following functions are activated) Seam section Forward stitches start backtacks...
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Input Seam program input variants To enter, change or delete seam programs there are basically three possible input variants Seam program input/alteration (input of values), Seam input with Teach In and Deleting seam programs. The required input variant is selected as follows: Switch on the machine Select input mode by pressing TE/Speed key twice (LED lights up).
Input Altering existing seam programs The following description assumes that a seam program with all the necessary parameters has already been created. Switch on the machine. Select the input variant "seam program input/alteration", see Chapter 11.02 Seam pro- gram input variants. Select the desired program number with the corresponding +/- key.
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Input 2 3500 125 To achieve the illustrated input menu, the following functions must be activated (LED lights up); F1 (Placement stitch) – and/or Speed (speed limitation) – and/or Stitch count. Select the desired speed value for the current seam section by pressing the corresponding +/- key.
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Input This input menu can only be selected if the end backtack function is activated(LED lights up). By pressing the corresponding +/- key select the desired value for the number of reverse stitches (C) of the end backtack for the current seam section. By pressing the corresponding +/- key select the desired value for the number of forward stitches (D) of the end backtack for the current seam section.
Input Deleting seam programs Switch on the machine Select input mode by pressing TE/Speed key twice(LED lights up). Press PM to select the seam program input function(LED lights up). Enter the code number, see Chapter 9.10 Entering/changing the code number. Select the required program number with the corresponding +/- key.
Input Seam programming examples The procedure for creating seam programs using the seam program input function and the Teach In function is described below with the help of examples. The display settings shown in the examples only appear like this if no seam pro- gram has been entered under the selected program number.
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Input The first seam section should have - a double start backtack (2 forward and 2 reverse stitches) - backtack speed of 700 spm - stitch count (5 stitches) - a 3.5 mm stitch length (for roller presser and feed wheel). By pressing the corresponding +/- key set the stitch length for the roller presser at "3.5".
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Input The following display is called up by pressing the scrolling key. 1 INS DEL NO By pressing the corresponding +/- key select "NO" to add further seam sections. By pressing "+" on the corresponding +/- key change to the second seam section. In the second seam section - the stitch length (for roller presser and feed wheel) should be 2.5 mm - and a stitch count should be carried out (1 stitch).
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Input By pressing "+" on the corresponding +/- key change to the third seam section. In the third seam section - the stitch length (for roller presser and feed wheel) should be 3 mm - a stitch count should be carried out (2 stitches), - and the seam should be sewn in reverse.
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Input In the fourth seam section - the stitch length (for roller presser and feed wheel) should be 5 mm - a stitch count should be carried out (1 stitch). By pressing the corresponding +/- key set the stitch length for the roller presser at "5.0 ".
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Input The fifth seam section should have - a double end backtack - a 5 mm stitch length (for roller presser and feed wheel) - backtack speed of 700 spm - a stitch count (1 stitch) - and the thread trimming function at the end of the seam section. By pressing the corresponding +/- key set the stitch length for the roller presser at "5.0 ".
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Input By pressing the corresponding +/- key set the number of stitches at "1". By pressing the thread trimming key, switch on the corresponding function for the seam section end. The following display is called up by pressing the scrolling key. 5 INS DEL YES By pressing the corresponding +/- key select "YES"...
Input Seam input example using the Teach In method .05.02 The seam to be programmed should - have 3 seam sections - and be stored under program number 8. Switch on the machine Select input mode by pressing TE/Speed key twice(LED lights up). Press PM to select the seam program input function(LED lights up).
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Input The first seam section should have - the knee switch function at the end of the seam section - and a 2.8 mm stitch length (for roller presser and feed wheel). By pressing the corresponding +/- key set the stitch length for the roller presser at "2.8 ".
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Input The second seam section should have - the knee switch function at the end of the seam section - and a 2.4 mm stitch length (for roller presser and feed wheel). By pressing the corresponding +/- key set the stitch length for the roller presser at "2.4 ".
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Input Sew the third seam section manually. After the machine has stopped the seam section end must be entered. By pressing the pedal in position "2" activate the seam section end by pedal, see Chapter 7.04 Pedal. By pressing the thread trimming key, switch on the corresponding function for the seam section.
Input List of parameters for control P320 / P321 The operator has free access to the "100" parameters. Parameters "200" - "800" can only be changed after entering a code number and many only be changed by authorised personnel.. 101 Pedal controlled start backtack (I = OFF , II = ON) I - II 102 Reverse rotation (I = OFF , II = ON)
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Input 207 Open thread tension after trimming and I - II lift roller-presser (I = OFF , II = ON) Thread carrier position t.d.c. 1571, 1591 0 - 127 1574 0 - 191 Needle position under b.d.c. 1571, 1591 0 - 127...
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Input Maximum speed 100 - 3500 2600 3500 Start backtack speed 100 - 1500 End backtack speed 100 - 1500 Soft start speed 100 - 3500 1500 1500 Soft start stitch 0 - 15 Move roller-presser and feed wheel step motor Inputs: 0123456789ABCDEF 0 = Needle mid point (E16) 1 = Needle mid point (E15)
Input Explanation of the error messages Message Description Error 1: System error Error 2: Sewing motor Error 3: Section Error 4: End of section Error 5: Pedal activated when machine switched on Error 6: Communication error with stepping motor processor Error 7: End of ramp Error 8:...
Care and maintenance Care and maintenance Cleaning the machine ............Daily, before starting the machine Clean the hook compartment .......Daily, several times if in continuous use Check the oil level ............Daily, before starting the machine Greasing the bevel gears ..................once a year These maintenance intervals are calculated for the average running time of a single shift operation.
Fig. 12 - 03 Only use oil with a mean viscosity of 22.0 mm²/s at 40ºC and a density of 0.865 g/cm³ at 15ºC. We recommend PFAFF sewing machine oil, part number 280-1-120 144.
Filling the oil reservoir of the thread lubrication unit Control the oil level before each use. There must always be oil in the reservoir 1. If necessary, fill oil up to mark through hole. We recommend PFAFF thread lubricating oil, Order No. 280-1-120 217. Fig. 12 - 04...
Use both hands to set the sewing head upright! Danger of crushing between the sewing head and the table top! We recommend PFAFF sodium grease with a dripping point of approx. 150C, Order No. 280-1-120 243.
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PFAFF Industriesysteme und Maschinen AG Hans-Geiger-Str. 12 - IG Nord D-67661 Kaiserslautern Telefon: +49 - 6301 3205 - 0 Telefax: +49 - 6301 3205 - 1386 E-mail: info@pfaff-industrial.com Gedruckt in der BRD / Printed in Germany / Imprimé en la R.F.A. / Impreso en la R.F.A...