Pfaff 3811-3/55 Instruction Manual
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Pfaff 3811-3/55 Instruction Manual

Pfaff 3811-3/55 Instruction Manual

Pfaff sewing machine instruction manual
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3811
-3/55, -15/65, -16/65
INSTRUCTION MANUAL
This instruction manual applies to machines
from serial number 2 710 276 and software
version 0352/011 onwards.
296-12-18 591/002
Betriebsanleitung engl. 03.12

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Summary of Contents for Pfaff 3811-3/55

  • Page 1 3811 -3/55, -15/65, -16/65 INSTRUCTION MANUAL This instruction manual applies to machines from serial number 2 710 276 and software version 0352/011 onwards. 296-12-18 591/002 Betriebsanleitung engl. 03.12...
  • Page 2 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.

  • Page 3: Table Of Contents

    Pedal ..........................7 - 1 Presser bar lifter ......................7 - 2 Knee Switch ........................7 - 2 Edge guide (only on the PFAFF 3811-3/55 and PFAFF 3811-15/65) ....... 7 - 3 Reverse-feed control lever .................... 7 - 3 Keyboard ........................7 - 4 Control panel .........................

  • Page 4: Contents

    Contents Contents ................. Chapter - Page Preparation ........................9 - 1 Inserting the needle ...................... 9 - 1 Threading the needle thread and regulating its tension ..........9 - 2 Threading the looper thread and regulating its tension ..........9 - 3 Selecting the program number ..................
  • Page 5 Lifting motion of the differential feed dog ..............13 - 13 05.10 Position of the main and the differential feed dog on the PFAFF 3811-3/55 ....13 - 14 05.11 Position of the main and the differential feed dog on the .......... 13 - 15 PFAFF 3811-15/65 and -16/65 ..................
  • Page 6 Contents Contents ................. Chapter - Page 07.01 Overview of the parameter functions ................ 13 - 47 07.02 Example of a parameter input ..................13 - 48 07.03 List of parameters ...................... 13 - 49 Sewing motor errors ....................13 - 51 Explanation of the error messages ................

  • Page 7: Safety

    Safety Safety Regulations This machine is constructed in accordance with 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 applicable pol- lution control regulations! The valid regulations of the regional social insurance society for occupational accidents or other supervisory authorities are to be strictly adhered to!

  • Page 8: Safety Symbols

    ● 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. 1 - 2...

  • Page 9: Notes For Operating And Technical Staff

    Safety Notes for operating and technical staff Operating staff .05.01 Operating staff are the persons responsible for setting up, operating and cleaning the mach- ine and for removing any disturbances in the sewing area. The operating staff are obliged to observe the following points, and must: ●...

  • Page 10: Danger Warnings

    Safety Danger warnings A working area of 1 m must be kept free both in front of and behind the mach- ine, 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! 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 slung out of the mach-ine!

  • Page 11: Proper Use

    Proper use Proper use The PFAFF 3811-3/55 is an integrated workplace used in the shoe industry for applying fullness to one material ply. The PFAFF 3811-15/65 is an integrated workplace used in the upholstery industry for the application of fullness in one material ply.

  • Page 12: Specifications

    Max. speed: ..................3200 stitches/min. Basic stitch length 3811-3/55: ....................... 2,2 mm 3811-15/65; 3811-16/65: ................3,0 + 4,0 mm Differential feed stroke 3811-3/55: ....................... 2,2 - 6,5 mm 3811-15/65; 3811-16/65: ................. 4,0 - 8,0 mm Needle system 3811-15/65; 3811-16/65: ..................4463-35 3811-3/55: ......................4463-KKD Needle size in 1/100 mm: ..................

  • Page 13: Disposal Of Machine

    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. ●...

  • Page 14: Transportation, Packing And Storage

    Transportation, packing and storage Transportation, packing and storage Transportation to customer's premises All 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.

  • Page 15: Explanation Of Symbols

    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) 6 - 1...

  • Page 16: Controls

    Controls Controls Main switch ● The machine is switched on or off by turning main switch 1. Fig. 7 - 01 Pedal 0 = Neutral position +1 = Lower presser foot / Feed bridle tape +2 = Sewing -1 = Raise presser foot -2 = Thread cutting (optional) / needle raised /edge knife out (when parameter 210 is set at "ON", see...

  • Page 17: Presser Bar Lifter

    Controls Presser bar lifter ● The presser foot is raised by turning lever 1. Fig. 7 - 03 Knee Switch When sewing with fixed programs: ● By operating knee switch 1 it is possible to alternate between two pre-set amounts of fullness. In programmed sewing: ●...

  • Page 18: Edge Guide (Only On The Pfaff 3811-3/55 And Pfaff 3811-15/65)

    Controls Edge guide (only on the PFAFF 3811-3/55 and PFAFF 3811-15/65) ● By pressing down lever 1 the edge guide is engaged. ● By raising lever 1 the edge guide is disengaged. Fig. 7 - 05 Reverse-feed control lever ● To sew condensed stitches, press lever 1 down.

  • Page 19: Keyboard

    Controls Keyboard The keyboard 1 is used for quick operation of the machine during sewing. An individual amount of fullness can be allocated to each key, see Chapter 9.05 Inputting fullness. Activated key functions are shown with the respective LED of the 20 keys (function activated - LED on).

  • Page 20: Control Panel

    Controls Control panel 2 GB max. Fig. 7 - 08 The current operating conditions are displayed on control panel 1. Operation takes place in a constant dialogue between the control unit and the operator. For this purpose, depending on the operating condition of the machine, different symbols and/or texts are displayed. If the symbols or texts are framed, these show functions which can be selected by pressing the appropriate position on the monitor.

  • Page 21: Mounting And Commissioning The Machine

    Mounting and commissioning the machine Mounting and commissioning the machine The machine must only be mounted and commissioned by qualified personnel! All relevant safety regulations are to be observed! If the machine is delivered without a table, you must make sure that the frame and the table top which you intend to use can hold the weight of the machine and the motor.

  • Page 22: Tightening The V-Belt

    Mounting and commissioning the machine Tightening the V-belt .01.02 ● Fit the V-belt. ● Loosen nut 1 and tighten the V-belt by turning motor mounting 2. ● Tighten nut 1. 109-020 Fig. 8 - 02 Fitting the upper belt guard .01.03 ●...

  • Page 23: Mounting The Bottom V-Belt Guard

    Mounting and commissioning the machine Mounting the bottom V-belt guard .01.04 Fig. 8 - 04 109-071 ● Loosen screws 2 and adjust belt guard support 1 so that the motor pulley and V-belt run freely. ● Tighten screws 2. ● Fasten belt guard 3 with screw 4. Fitting the synchronizer .01.05 ●...

  • Page 24: Connecting The Plug-In Connections And Earth Cables

    Mounting and commissioning the machine Connecting the plug-in connections and earth cables .01.06 Fig. 8 - 06 ● Connect all plugs as labelled in the control box 1. ● Screw the earth cable from the sewing head to earth point A. ●...

  • Page 25: Fitting The Reel Stand

    Mounting and commissioning the machine Fitting the reel stand .01.07 ● Fit the reel stand as shown in Fig. 8 - 07. ● Afterwards insert the stand in the hole in the table top and secure it with nuts pro- vided.

  • Page 26: Commissioning

    Mounting and commissioning the machine Commissioning Before setting up, remove the protective foil from oil glass 1! ● Clean the machine thoroughly and afterwards check the oil level (see Chapter 12, Care and Maintenance). ● Check the machine for any damage, especially the electrical leads.

  • Page 27: Preparation

    Preparation Preparation 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. Before all preparation work, the machine is to be separated from the electricity supply by removing the plug from the mains or switching off the On/Off switch! Inserting the needle...

  • Page 28: Threading The Needle Thread And Regulating Its Tension

    Preparation Threading the needle thread and regulating its tension ca. 7 cm Fig. 9 - 02 Switch off the machine! Danger of injury by unintentional starting of the machine! ● Thread the needle thread as shown in Fig. 9-02. ● Regulate the needle thread by turning knurled screw 1. 9 - 2...

  • Page 29: Threading The Looper Thread And Regulating Its Tension

    Preparation Threading the looper thread and regulating its tension Fig. 9 - 03 Fig. 9 - 04 Switch off the machine! Danger of injury by unintentional starting of the machine! ● Open the looper cover and swing out thread guide plate 1. ●...

  • Page 30: Selecting The Program Number

    Preparation Selecting the program number ● Switch on the machine. ● Call up the program number input menu. ● Select the desired program number. ● Confirm the selection and quit the selection menu. The type of sewing is stipulated with the selection of the program number, see Chapter 10 Sewing.

  • Page 31: Inputting Fullness

    Preparation Inputting fullness ● Switch on the machine. ● Call up the program number input menu. ● Select program number "0". ● Confirm the selection and quit the selection menu. ● Enter the desired value with the appropriate arrow keys. Fig.

  • Page 32: Entering / Altering The Code Number

    Preparation Entering / altering the code number ● Switch on the machine. ● Call up the input mode. ● Select parameter "800". ● Select the code number input menu. ● Enter the code number on the number keys (factory code setting is "3800"). 9 - 6...
  • Page 33 ● Call up the code number input menu and enter the desired code number. ● Take over the new code number. ● Conclude input. Do not forget the code! Without the appropriate code, the protected functions cannot be called up! Help is then only possible through PFAFF service staff. 9 - 7...

  • Page 34: Adjusting The Control Panel

    Preparation Adjusting the control panel ● Switch on the machine. ● Call up the input mode. ● Select the service menu. ● Select control panel functions. ● Change the display contrast. ● Switch the key tone off or on. Never reduce the display contrast to the extent, that the display can no longer be read! 9 - 8...

  • Page 35: Sewing

    Sewing Sewing In the sewing mode all relevant settings for the sewing operation are displayed on the screen and can be altered with the corresponding functions. In the sewing mode a difference is made between manual sewing, sewing with fixed programs and programmed sewing.

  • Page 36: Selecting The Material Type

    Sewing Needle raised Moves the needle to its highest position Needle position raised When this function is activated, the needle moves to its highest position after sewing stops. Thread trimming when the function is activated, enables thread trimming with the pedal function (optional). when the function is activated, the edge knife can be switched off with the pedal function, see Chapter 7.02 Pedal.

  • Page 37: Sewing With Fixed Programs

    Sewing Sewing with fixed programs Fixed programs are stored under the program numbers 1 and 2. The fixed programs are used for the quick and easy production of seams with different amounts of fullness. When sewing with fixed programs, 2 or 3 seam sections are sewn after each other.
  • Page 38 Sewing Needle position raised When this function is activated, the needle moves to its highest position after sewing stops. Thread trimming when the function is activated, enables thread trimming with the pedal function (optional). when the function is activated, the edge knife can be switched off with the pedal function, see Chapter 7.02 Pedal.

  • Page 39: Programmed Sewing

    Sewing Programmed sewing With the program numbers 3 – 49 it is possible to call up previously programmed seams. In programmed sewing all seam sections for pre-gathering a seam are set in one seam program. The information about the seam program, such as program number, number of programmed seam sections, programmed comments is displayed.
  • Page 40 Sewing Current seam This function is used to select and display the current seam (right/left). Automatic seam change When this function is activated, the machine changes automatically from the right to left seam. Material type These functions are used to select the material type, see 10.01.02 Selecting the material type.

  • Page 41: Program Interruption

    Sewing Program interruption .03.01 With the "program interruption" function the programmed seam sequence is interrupted (e.g. if the thread breaks). ● Interrupt program sequence. ● If necessary, tact forwards or backwards through the sections of the seam program. ● If necessary, change the values and carry out the other functions as in manual sewing, see Chapter 10.01 Manual sewing.

  • Page 42: Input

    Input Input In the input mode the functions parameter input, information, creating/adjusting a sewing program, teach-in, program administration and service are available. ● Switch on the machine. ● Call up the input mode. Explanation of the functions Sewing mode Quit the input mode and call up the sewing mode. Parameter selection Select the hundred and unit figures of the desired parameters, see Chapter 13.07.02 Example of a parameter input.

  • Page 43: Seam Program Input

    Input Seam program input Seam programs can be created by entering parameters in the "Creating/adjusting a seam program" function, or by sewing a sample with the "Teach in" function. Irrespective of which function is being used, first of all it is necessary to select the program number and the basic settings of the seam program, which is to be sewn.
  • Page 44 Input ● Set the seam type (by pressing the appropriate symbol several times until the appropriate seam type is displayed). Description of the symbols: Sewing program with left and right seam, beginning with the right seam. Sewing program with left seam only. Sewing program with right seam only.

  • Page 45: Seam Program Input With The "Creating/Adjusting A Program" Function

    Input Seam program input with the "Creating/adjusting a program" function .01.02 With this function the seam program is entered by entering or changing the appropriate values on the control panel. This type of seam program input is particularly suitable for adjusting existing seam programs.

  • Page 46: Entering The Actual And Required Length Of The Seam Section

    Input ● If necessary, insert the seam section. The current seam section is copied and all following seam sections are set one place back. ● If necessary, delete the current seam section. ● If necessary, conclude the input of the current seam and store the parameter for the other seam in the reverse order (mirror seam).

  • Page 47: Seam Program Input With The "Creating/Adjusting A Program" Function

    Input Seam program input with the "Creating/adjusting a program" function .01.04 With this function the seam program is entered by sewing a sample. A new program is always created, i.e. if an existing program is selected, this will be overwritten. ●...
  • Page 48 Input After sewing starts, the following displays and functions are shown on the screen. ● By pressing Enter the seam section end is defined by stitch counting. ● By operating the pedal in position "-2", the seam section is ended by pedal operation, see Chapter 7.02 Pedal.

  • Page 49: End Of Seam Section Input During Seam Programming

    Input End of seam section input during seam programming .01.05 After the appropriate function has been called up, the menu for entering the functions and values for the end of the seam section without condensed stitches appears. ● If necessary, switch off the condensed stitches function. ●...

  • Page 50: Examples Of How To Create A Seam Program

    Input Examples of how to create a seam program Example of a seam program input with the "creating/adjusting a program" .02.01 function The seam program to be created should have 4 seam sections and be stored under the program number "4" with the comment "PROG". ●...
  • Page 51 Input In the first seam section sewing should be carried out without fullness, the end of the seam section should be carried out with the knee switch. ● Enter the value "0" for the fullness. ● Call up the menu for the input of the end of the seam section. ●...
  • Page 52 Input ● Enter the value "242" for the actual length. ● Enter the value "140" for the required length. ● Conclude the input of the required/actual length. The number of stitches ("37") and the value for the fullness ("70") are calculated from the values entered.
  • Page 53 Input In the third seam section sewing should be carried out with an actual length of 190 mm and a required length of 160 mm. ● Cal up the menu for entering the required/actual length of the seam section and enter the values for the required and the actual length.

  • Page 54: Example Of A Seam Program Input Using The "Teach-In" Function

    Input Example of a seam program input using the "teach-in" function .02.02 The seam program to be created should consist of one seam, have 10 seam sections, be stored under the program number "11" with the comment "TEACH". Seam section 10 Direction of seam Raffwert: 12 Seam end: with Pedal...
  • Page 55 Input ● Specify the seam type (press till the corresponding symbol for the left or right seam appears). ● Call up the menu for comment input. ● Enter the comment "TEACH" with the keyboard and number panel. ● Conclude the comment input. ●...
  • Page 56 Input The second seam section should be sewn with gathering value "17". ● Enter the value "17". ● Sew the second seam section using the pedal function. ● Change to the input of the third seam section. ● Enter the details for the third to eighth seam sections as described under section 2 (note the corresponding values in the diagram) and sew the individual seam sections.
  • Page 57 Input The tenth seam section should be sewn with gathering value "12". ● Enter the value "12". ● Sew the tenth seam section with the pedal function. ● Set the end of the seam section with pedal position "-2", see Chapter 7.02 Pedal. ●...

  • Page 58: Seam Program Administration

    Input Seam program administration In the program administration the seam programs deposited in the machine memory and the SD-Card can be deleted and copied. The left side of the display shows the programs in machine memory. The right side of the display shows the programs on the SD-Card. Selected programs are red marked.
  • Page 59 Input Dialog window The dialog window shows questions and additional buttons for the answers. Enter button Enter button Yes for one seam program. All button Yes for one or all marked seam programs. Esc button No for one or all marked seam programs. Next button No for one seam program.

  • Page 60: Care And Maintenance

    Care and Maintenance Care and Maintenance Clean looper compartment ........daily, several times if in continuous use Clean the entire machine ................once a week Check the oil level ................... daily, before use Lubricate the articulated joints of the top feed ..........once a week Check/adjust the air pressure ..............

  • Page 61: Machine Oil Level

    Only use oil with a mean viscosity of 22.0 mm²/s at 40º C and a density of 0.865 g/cm³ at 15º C!. We recommend PFAFF sewing machine oil. Order-No. 280-1-120 144. Fig. 12 - 02 Cleaning/lubricating the top feed joints ●...

  • Page 62: Checking/Adjusting The Air Pressure

    Care and Maintenance Checking/adjusting the air pressure ● Before operating the machine, always check the air pressure on gauge1. ● Gauge 1 must show a pressure of 6 bar. ● If necessary adjust to this reading. ● To do so, pull knob 2 upwards and turn it so that the gauge shows a pressure of 6 bar.

  • Page 63: Adjustment

    Adjustment Adjustment Please observe all notes from Chapter 1 Safety of the instruction manual! In particular care must be taken to see that all protective devices are refitted properly after adjustment, see Chapter 1.06 Danger warnings of the instruction manual! If not otherwise stated, the machine must be disconnected from the electrical power supply.

  • Page 64: Control And Adjustment Aids

    Adjustment Control and adjustment aids By marking the holes 1, 3, 4 and 5 with the adjustment pin (ø 5 mm), the desired needle bar positions can be fixed exactly. Fig. 13 - 01 ● Turn the balance wheel until the needle bar is approximately in the desired position. ●...

  • Page 65: Adjusting The Basic Machine

    Adjustment Adjusting the basic machine Basic position of the machine .05.01 With control unit P323 MS .05.01.01 ● Switch on the machine. ● Call up the input mode. ● Call up the service function. ● By turning the balance wheel in the sewing direction, ascertain the number of increments per turn (this maximum value appears under "POS"...
  • Page 66 Adjustment ● Call up parameter "301". ● Turn the balance wheel in the direction of rotation until the needle point, descending from above, is flush with the top edge of the needle plate. ● Conclude the input. ● Switch off the machine. Mit Steuerung P320 ED .05.01.02 ●...
  • Page 67 Adjustment ● Call up the motor service function. ● Press this key for the machine to learn the transmission ratio. Attention! After this key has been operated, the machine sews 3 stitches at a speed of approx. 360 rpm. ● Call up the input mode. ●...

  • Page 68: Needle To Needle Hole

    Adjustment Needle to needle hole .05.02 Requirement 1. As seen crosswise to the direction of sewing, needle 5 should be in the centre of the needle hole. 2. The distance between needle 5 and the front edge of the needle hole should be approximately 0.8 mm.

  • Page 69: Preliminary Adjustment Of The Needle Height

    Adjustment Preliminary adjustment of the needle height .05.03 Requirement 3811 -3/55 With the needle bar at t.d.c. (adjustment hole 1), the distance X between the needle plate and the needle tip should be 11 mm. 3811 -15/65 With the needle bar at t.d.c. (adjustment hole 1) the distance X between the needle plate and the needle tip should be 14 mm.

  • Page 70: Neutral Position Of The Main Feed Dog

    Adjustment Neutral position of the main feed dog .05.04 Requirement When the stitch length is set at "0", there should be no feeding motion of the main feed dog 7. 54-044 Fig. 13 - 04 ● Unscrew screw 1 (nut 2) (stitch length limitation deactivated). ●...

  • Page 71: Neutral Position Of The Differential Feed Dog

    Adjustment Neutral position of the differential feed dog .05.05 Requirement With the stitch length set at "0" and the adjustment gauge 1 fitted, there should be no movement of the differential feed dog 5. 54-033 Fig. 13 - 05 ● Set stitch length at "0". ●...

  • Page 72: Feeding Motion Of The Main Feed Dog And The Differential Feed Dog

    Adjustment Feeding motion of the main feed dog and the differential feed dog .05.06 Requirement When the stitch length is set at "4", the needle bar is positioned 0.8 before t.d.c. (adjustment hole 4) and the adjustment gauge 8 is fitted, the main feed dog and the diffe- rential feed dog should not move when roller 5 is operated.

  • Page 73: Lifting Motion Of The Main Feed Dog And Differential Feed Dog

    Adjustment Lifting motion of the main feed dog and differential feed dog .05.07 (only on the PFAFF 3811-3/55) Requirement When the needle bar is at t.d.c. (adjustment hole 1), the cutouts of eccentrics 3 and 4 should point straight down.

  • Page 74: Lifting Motion Of The Main Feed Dog

    Adjustment Lifting motion of the main feed dog .05.08 Requirement When the needle bar is at t.d.c. (adjustment hole 1), the cutout of eccentric 2 should point straight down. Fig. 13 - 08 ● Loosen both screws 1. ● Bring needle bar to t.d.c. ●...

  • Page 75: Lifting Motion Of The Differential Feed Dog

    Adjustment Lifting motion of the differential feed dog .05.09 Requirement With the needle bar positioned 5.5 mm before t.d.c. (adjustment hole 5), the cutout of eccentric 2 should point straight down. 54-056 Fig. 13 - 09 ● Loosen both screws 1. ●...

  • Page 76: Position Of The Main And The Differential Feed Dog On The Pfaff 3811-3/55

    Adjustment Position of the main and the differential feed dog on the PFAFF 3811-3/55 .05.10 Requirement With the needle bar at t.d.c (adjustment hole 1) and the longest stitch length set 1. The main feed dog should be 1.4 mm parallel and the differential feed dog 1.9 mm parallel above the needle plate.

  • Page 77: Position Of The Main And The Differential Feed Dog On The

    Adjustment Position of the main and the differential feed dog on the .05.11 PFAFF 3811-15/65 and -16/65 Requirement With the longest stitch length set and in their highest position 1. The main feed dog should be 1.7 mm and the differential feed dog 2.0 mm parallel above the needle plate.

  • Page 78: Neutral Position Of The Top Feed Dog

    Adjustment Neutral position of the top feed dog .05.12 Requirement When the stitch length is set at "0" and with the adjustment gauge 4 fitted, there should be no feeding motion of the top feed dog. 54-033 Fig. 13 - 12 The stitch length limitation (screw 1 in Chapter 13.05.04 Neutral position of the main feed dog) must be deactivated.

  • Page 79: Front Linkage Rod To Top Feed Drive

    Adjustment Front linkage rod to top feed drive .05.13 Requirement With the needle bar positioned 0.8 before t.d.c. (adjustment hole 4), there must be a distance of approx. 16.5 mm between the eye of the linkage rod 2 and machine case 3. 54-055 16,5 mm Fig.

  • Page 80: Aligning The Presser Foot

    Adjustment Aligning the presser foot .05.14 Requirement 1. With the hand lever 1 raised, there should be a clearance of 5 mm between the presser foot 13 and the needle plate. 2. The needle should penetrate the presser foot 13 in the centre of the needle hole. 3.
  • Page 81 Adjustment ● Tighten screw 6. ● Remove adjustment gauge 4 and let presser foot 13 rest on the needle plate. ● Loosen screw 14. ● Engage lever 9 in lever bracket 10. (Lever 9 must move smoothly. If not, adjust lever 10). ●...

  • Page 82: Feeding Motion Of The Top Feed Dog

    Adjustment Feeding motion of the top feed dog .05.15 Requirement With the stitch length set at "4", the needle bar positioned 0.8 mm before t.d.c. (adjustment hole 4), lever 4 should not move when lever 2 is operated. 54-055 54-059 Fig.

  • Page 83: Top Feed Stroke

    Adjustment Top feed stroke .05.16 Requirement With the stitch length set at "4" and adjustment gauge 12 fitted, at t.d.c. the top feed dog 2 should be 3.2 mm. 54-033 Fig. 13 - 16 ● Allow the presser foot 1 to touch the needle plate. ●...

  • Page 84: Lifting Motion Of The Top Feed Dog

    Adjustment Lifting motion of the top feed dog .05.17 Requirement When the stitch length is set at "4" and with adjustment gauge 3 fitted, the top feed dog should rest on the ascending bottom feed dog, when this reaches the top edge of the needle plate.

  • Page 85: Stitch Length Limitation

    Adjustment Stitch length limitation .05.18 Requirement 3811 -3/55 1. The bottom stroke of rocking bar 6 should be set so that the stitch length is 2.2 mm (x = 22 mm with 11 penetrations). 2. With the same stitch length set, screw 4 should rest lightly on the casting.

  • Page 86: Basic Setting Of The Differential Adjustment Mechanism

    Fig. 13 - 19 ● Switch on the machine. ● The following work step is dependent on the type of machine. PFAFF 3811-15/65, -16/65: Press key "15" on keyboard 1 (LED must light up). PFAFF 3811-3/55: Set fullness at "0".

  • Page 87: Setting The Standard Stitch Length (Not On The Pfaff 3811-3/55)

    Adjustment Setting the standard stitch length (not on the PFAFF 3811-3/55) .05.20 Requirement When the stitch length is set at "3" and key "15" is activated (cylinder 4 completely exten- ded), the stitch length should be 3 mm. Fig. 13 - 20 ●...

  • Page 88: Looper Avoiding Motion

    Adjustment Looper avoiding motion .05.21 Requirement With the needle bar at t.d.c. (adjustment hole 1) the cutout of eccentric 2 should be positioned vertically below the centre of the axis. Fig. 13 - 21 ● Loosen both screws 1. ● Bring needle bar to t.d.c. ●...

  • Page 89: Looper Motion

    Adjustment Looper motion .05.22 Requirement In the following positions the looper point should be positioned at the same height: a) When, after turning the balance wheel in the sewing direction, the looper point is on the left side of the needle. b) When, after turning the balance wheel back from position a), the looper point is on the right side of the needle.

  • Page 90: Looper Height And Looper Angle

    Adjustment Looper height and looper angle .05.23 Requirement When the looper carrier 2 is in a vertical position there should be 1. a distance of 0.7 mm between the highest point of the looper back and the needle plate rest and 2.
  • Page 91 Adjustment ● Place looper adjustment gauge 9 (part no. 61-111 643-06) on the left edge of the cover plate guide (see arrow) and push it against looper 7. ● Position looper 7 (screw 8) on the looper adjustment gauge 9 (requirement 2). Spacer Part No.

  • Page 92: Looper-To-Needle Clearance In Sewing Direction

    Adjustment Looper-to-needle clearance in sewing direction .05.24 Requirement In sewing direction there must be a cleaance of approx. 0.1 mm between looper point and needle. 0,1 mm Fig. 13 - 24 ● Turn the balance wheel until the looper point coming from the right reaches the left side of the needle.

  • Page 93: Looper-To-Needle Clearance Crosswise To Sewing Direction

    Adjustment Looper-to-needle clearance crosswise to sewing direction .05.25 Requirement When the looper 1 is at its right point of reversal, there must be a clearance between the looper point crosswise to the sewing direction and the needle center of 3.6 mm. 3,6 mm 54-065 Fig.

  • Page 94: Final Adjustment Of The Needle Height

    Adjustment Final adjustment of the needle height .05.26 Requirement When the point of the looper advancing from the right reaches the left side of the needle, the top edge of the needle eye must be 1.0 - 1.2 mm below the bottom edge of the looper. Fig.

  • Page 95: Height Of Rear Needle Guard

    Adjustment Height of rear needle guard .05.27 Requirement When the needle bar is at bottom dead center (pin in hole 3), the vertical surface of the needle guard 1 must cover about 2/3 of the needle eye. Fig. 13 - 27 ●...

  • Page 96: Clearance Between Rear Needle Guard And Needle

    Adjustment Clearance between rear needle guard and needle .05.28 Requirement When the point of the looper, which is advancing from the right, reaches the right side of the needle, the needle guard 3 must still be in slight contact with the needle. Fig.

  • Page 97: Position Of The Front Needle Guard (Does Not Apply To All Machines)

    Adjustment Position of the front needle guard .05.29 (does not apply to all machines) Requirement When the point of the looper 1, which is advancing from the right, is positioned in the center of the needle, the needle guard clip 4 must 1.

  • Page 98: Guard Of Looper-Avoiding-Motion Eccentric

    Adjustment Guard of looper-avoiding-motion eccentric .05.30 Requirement During motion the eccentric 3 must not touch guard 1. Fig. 13 - 30 ● Adjust guard 1 (screws 2, accessible through adjustment holes) according to the requirement. 13 - 36...

  • Page 99: Take- Up Lever

    Adjustment Take- up lever .05.31 Requirement 1. When the needle bar is at BDC (pin in hole 3) there must be a clearance of about 0.3 mm between the take-up lever 2 and the needle bar frame 3. 2. The take-up lever 2 must be able to move freely in the center of the needle head slot, and must not have any contact either at TDC or BDC.

  • Page 100: Basic Setting Of The Needle Thread Regulator And The Thread Guide

    Adjustment Basic setting of the needle thread regulator and the thread guide .05.32 Requirement 1. With the needle bar at BDC (pin in hole 3) the eye of the needle thread regulator 1 and the adjustment hole of the take-up lever 4 must be in line. 2.

  • Page 101: Looper Thread Regulator And Looper Thread Take-Up

    Adjustment Looper thread regulator and looper thread take-up .05.33 Requirement 1. The distance between the front edge of looper thread regulator 1 and the rear needle plate edge guide must be 29 mm. 2. The front edges of the thread take-up device 3 and the thread regulator 1 must be about 8 mm apart.

  • Page 102: Looper Thread Puller

    Adjustment Looper thread puller .05.34 Requirement With the needle bar in top dead center (pin in hole 1) both eyes of looper thread puller 1 must be at the front edge of the thread take-up device 4. Fig. 13 - 34 ●...

  • Page 103: Top Feed Dog And Sewing Foot Pressure

    Adjustment Top feed dog and sewing foot pressure .05.35 Requirement The pressure of the top feed dog and the sewing foot should be set, so that the best possible feeding of the workpiece is achieved at every speed. ca. 12 mm Fig.

  • Page 104: Adjusting The Edge Trimming Mechanism

    Adjustment Adjusting the edge trimming mechanism Knife stroke .06.01 Requirement When the needle bar is at t.d.c., the knife should be at the top of its stroke. Fig. 13 - 36 ● Adjust eccentric 1 (screw 2) according to the requirement. 13 - 42...

  • Page 105: Neutral Position

    Adjustment Neutral position .06.02 Requirement When cylinder 3 is fully extended, the knife should not move when the balance wheel is turned. Fig. 13 - 37 ● Turn crank 1 (screws 2) according to the requirement. 13 - 43...

  • Page 106: Starting Position Of The Cylinder

    Adjustment Starting position of the cylinder .06.03 Requirement When cylinder 3 is retracted, nut 4 should be 10 mm from the bottom edge of cylinder 3. 54-054 Fig. 13 - 38 ● Adjust stop 1 (screw 2) according to the requirement. 13 - 44...

  • Page 107: Knife Height

    Adjustment Knife height .06.04 Requirement When the knife 1 is at b.d.c., the front edge of knife 1 should be approx. 0.5 mm below the top edge of the needle plate. 54-063 Fig. 13 - 39 ● Adjust knife 1 (screw 2) according to the requirement. 13 - 45...

  • Page 108: Knife Position Crosswise To Sewing Direction

    Adjustment Knife position crosswise to sewing direction .06.05 Requirement 1. The knife 3 must rest with light pressure against the stationary knife. 2. The knife 3 should, however, not strike the needle plate. Fig. 13 - 40 ● Bring the knife into its lowest position and adjust knife mounting 1 (screw 2) according to the requirements.

  • Page 109: Parameter Settings

    Adjustment Parameter settings Overview of the parameter functions .07.01 After the machine has been switched on, by pressing the appropriate function the input mode is called up, in which the individual parameters can be called up directly. With a code it is possible to protect all or individual parameter groups against unauthorised access.

  • Page 110: Example Of A Parameter Input

    Adjustment Example of a parameter input .07.02 ● Switch on the machine. ● Call up the input mode. ● e.g. call up parameter "113" (switch beep tone for section change on/off) ● e.g. switch beep tone on (value "ON"). ● Conclude the input. 13 - 48...

  • Page 111: List Of Parameters

    OFF - ON Max. speed forwards at each OFF - ON pedal position Machine confi guration 3 - 5 3 = 3811-3/55 4 = 3811-15/... 5 = 3811-16/... Fullness adjustment value (keyboard) 0 - 9 Switch off edge knife (with pedal position "-2")
  • Page 112 Adjustment Group Parameter Description Setting range value P-quota position controller 1 - 50 D-quota position controller 1 - 100 Time for position controller 0 - 100 P-quota position controller for rest brake 1 - 50 D-quota position controller for rest brake 1 - 50 Maximum moment for rest brake 0 - 100...

  • Page 113: Sewing Motor Errors

    Adjustment Group Parameter Description Setting range value Right of access program creation 0 - 1 Enter access code 0 - 9999 3800 Sewing motor errors Error message Description Invalid parameter value Brake path too short Communication error with limit control Switch on sequence not ready Too many commands Mains off during initialisation...

  • Page 114: Explanation Of The Error Messages

    Adjustment Explanation of the error messages Message Description E001 System error E002 Sewing motor E002/BB/xxx BB = 20: Time-out 02: Position forwards 03: Position in reverse 05: Position by shortest path 09: Write parameter 10: Speed 0A: Reset stitch counter 0B: Stop after xxx stitches 30: Time-out for increasing speed 31: Time-out for uncertain positioning...

  • Page 115: Table Of Inputs

    Adjustment Table of inputs not assigned not assigned not assigned Start inhibitor not assigned Knee switch not assigned not assigned not assigned not assigned not assigned not assigned not assigned not assigned not assigned Reference for fullness adjustment Table of outputs Raise sewing foot (O1.1 and O1.2) Thread trimmer (O2.1 and O2.2) Tape brake...

  • Page 116: Service Menu

    Adjustment Service menu In the service menu information is displayed about the machine’s inputs and outputs, as well as the values for the pedal and the balance wheel position. In addition the following functions can also be carried out. ● Switch on the machine. ●...

  • Page 117: Carry Out A Cold Start

    Adjustment Carry out a cold start ● Switch on the machine. ● Call up the input mode. ● Call up the service menu. ● Carry out a cold start. After a cold start all programmed values are set back to their status at the time of delivery.

  • Page 118: Internet Update Of The Machine Software

    Adjustment Internet update of the machine software The machine software can be updated with PFAFF flash programming. For this purpose the PFP boot program and the appropriate control software for the machine type must be installed on a PC. To transfer the data to the machine, the PC and the machine control unit must be connected with an appropriate null modem cable ( part no.

  • Page 119: Wearing Parts

    In case of loss, the parts list can be downloaded from the internet address www.pfaff-industrial.com/pfaff/en/service/downloads. As an alternative to the internet download the parts lists can also be ordered in book form under part no. 296-12-18 591. PFAFF 3811-16/65 PFAFF 3811-3/55; -15/65 11-108 849-25 (2x) 12-305 074-25 (2x) 11-330 085-15 11-330 958-15...
  • Page 120 Pneumatics-switch diagram 91-196 282-95 Version 12.01.06 Schaltpläne 15 - 1...

  • Page 121: Circuit Diagrams

    Y1 910/.. Automatic presser foot lift Y2 900/.. Thread trimmer (option) Y3 Tape brake (option) Y4 Stitch length 3 + 4 mm (only on the PFAFF 3811-15/65, -16/65) Y7 Edge trimming mechanism (only on the PFAFF 3811-16/65) 910/.. Automatic presser foot lift 900/..
  • Page 122 Circuit diagrams 91-191 493-95 Version 01.09.05 Page 1 15 - 3...
  • Page 123 91-191 493-95 Circuit diagrams Page 2 Version 01.09.05 15 - 4...
  • Page 124 Circuit diagrams 91-191 493-95 Version 01.09.05 Page 3 15 - 5...
  • Page 125 91-191 493-95 Circuit diagrams Page 4 Version 01.09.05 15 - 6...
  • Page 126 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...

This manual is also suitable for:

3811-15/653811-16/65

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