Related Manuals for Pfaff 521
Summary of Contents for Pfaff 521
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Page 1: Instruction Manual
1521 Instruction Manual This instruction manual applies to machines from the following serial numbers onwards: # 2575639 296-12-18 701/002 Betriebsanleitung engl. 09.03... - Page 2 This instruction manual applies to all versions and subclasses listed under "Specifications". Reprinting, copying or translation of PFAFF instruction manuals, whether in whole or in part, is not permitted without our prior permission and not without written indication of the source.
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Page 3: Table Of Contents
Lever for lifting the roller presser .................. 7 - 3 Bobbin thread monitoring with stitch counting .............. 7 - 4 Bobbin thread supply monitor –926/06 (only on the PFAFF 1521) ......... 7 - 4 Control panel ......................... 7 - 5 Displays on the screen .................... - Page 4 Removing/inserting the bobbin case on the PFAFF 521 ..........9 - 3 Threading the bobbin case, adjusting the bobbin thread tension on the PFAFF 521 ..9 - 3 Bobbin-changing/threading, and regulating the bobbin thread tension ......9 - 4 on the PFAFF 1521 .......................
- Page 5 Index Contents ................. Chapter - Page Altering existing seam programs ................. 11 - 5 Deleting seam programs ..................... 11 - 8 Seam programming examples ..................11 - 9 05.01 An example for seam program input ................11 - 9 05.02 Seam input example using the Teach In method ............
- Page 6 05.12 Tension release (during trimming process) ..............13 - 32 Adjusting the bobbin thread supply monitor -926/06 (only on the PFAFF 1521) .................... 13 - 33 Parameter settings ...................... 13 - 34 Parameter input example .................... 13 - 34 List of parameters ....................... 13 - 35 Explanation of the error messages ................
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Page 7: Safety
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... -
Page 8: Safety Symbols
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 at your PFAFF agent. 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 machine and for eliminating any malfunctioning in the sewing area. The operating staff is obliged to observe the following points: The notes on safety in this instruction manual must always be observed! Any working methods, which adversely affect the safety of the machine, must be avoided.! -
Page 10: Danger
Safety Danger 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 or in the needle plate area while adjusting the machine settings! Objects can become trapped or be slung away! Danger of injury! -
Page 11: Proper Use
Proper use Proper use The PFAFF 521 is a high-speed, single-needle sewing machine with forward- and reverse- feeding feed wheel and roller presser, as well as needle feed. The PFAFF 1521 is a high-speed, single-needle sewing machine with large sewing hook, with forward- and reverse-feeding feed wheel and roller presser, as well as needle feed. -
Page 12: Specifications
PFAFF 521, model A at a speed of 2800 spm: ........... L = 81 dB(A) PFAFF 521 and 1521, model B at a speed of 2800 spm: ......L = 81 dB(A) PFAFF 521 and 1521, model C at a speed of 1600 spm: ......L = 74 dB(A) Net weight of sewing head: ................ -
Page 13: Needles And Threads For The Pfaff 521
134 - 35 or similar strengths of other types of thread Possible models Model A (only the PFAFF 521) ..........For sewing lightweight materials Model B ............... For sewing medium-weight materials Model C ................ For sewing medium-heavy materials 3 - 2... -
Page 14: Disposal Of Machine
Disposal of machine waste Disposal of machines The proper disposal of machines is the responsibility of the customer. The materials used in the machines are steel, aluminium, brass and various plastics. The electrical equipment consists of plastics and copper. The machine is to be disposed of in accordance with the locally valid environmental protection regulations. -
Page 15: Storage
Transport packaging and storage Transport packaging and storage Transport to the customer’s premises Within Germany, complete machines (with table and motor) are delivered without packaging. Machines without a table (sewing head with motor only) and machines for export are packaged. Transport within the customer’s premises The manufacturer bears no liability for transport within the customer’s premises. -
Page 16: Explanation Of Symbols
Explanation of the symbols Explanation of the symbols In the following section of this Instruction Manual, certain tasks or important pieces of information are accentuated by symbols. The symbols used have the following meanings: Note, information Cleaning, care Lubrication, greasing Servicing, repairing, adjustment, maintenance (only to be carried out by specialist personnel) 6 - 1... -
Page 17: Controls
Controls Controls On/off switch Turn the machine on/off by turning On/Off 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" and "204" functions can be allotted to the keys 2, see Chapter 13.07 Parameter settings. -
Page 18: Pedal
Controls Pedal Different functions are triggered by different pedal positions. Machine stop Raise roller-presser Trim thread and raise roller presser Other pedal functions can be set by changing the parameters, see Chapter 13.07 Parameter settings. Fig. 7 - 03 Knee switch In the manual sewing mode it is possible to choose between 2 pre-set amounts of fullness or 2 stitch lengths using knee... -
Page 19: Knee Lever
Controls Knee lever The roller presser is raised by pressing the knee lever 1 in the direction of the arrow. Fig. 7 - 05 Lever for lifting the roller presser The roller presser is raised by turning lever 1. Fig. 7 - 06 7 - 3... -
Page 20: Bobbin Thread Monitoring With Stitch Counting
Setting the stitch counter Fig. 7 - 07 Bobbin thread supply monitor –926/06 (only on the PFAFF 1521) After reaching the set amount of remaining thread, LED 1 starts to flash. It is possible to sew to the end of the seam being sewn. -
Page 21: Control Panel
During the power-on phase the control panel automatically switches on all LCD segments and the horn. Afterwards the lettering PFAFF appears on the display, until the higher-ranking control unit sends commands to the control panel. Displays on the screen .09.01... - Page 22 Controls End backtacks By pressing this key, the backtacking function at the end of the seam (end backtacks) is switched on or off. The number of reverse stitches (C) or forward stitches (D) can be changed in each case by pressing the +/- key underneath. To convert from double backtacks to single backtacks the relevant number of stitches for the seam segment is set at zero.
- Page 23 Controls Stop By pressing this key the corresponding function is switched on or off. If the function is activated, in the programmed sewing mode the machine stops automatically at the end of the seam section. In the manual sewing mode, if this function is activated, the roller presser and feel wheel drive are switched off, in order to e.g.
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Page 24: 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, it must be ensured that the frame and the table top which you intend to use can hold the weight of the machine and the motor, even while sewing. -
Page 25: Fitting The Tilt Lock
Mounting and commissioning the machine Fitting the tilt lock .01.02 Screw on tilt lock parts 1 and 2, provided in the accessories, using screws 3 and 4. Do not operate the machine without tilt lock 1. Danger of crushing between sewing head and table top! Fig. -
Page 26: Mounting The Flange Motor
Mounting and commissioning the machine 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. -
Page 27: Connecting The Plug-In Connections And Earth Cables
Mounting and commissioning the machine Connecting the plug-in connections and earth cables .02.03 Fig. 8 - 06 Connect all plug connections to the control box 1 as shown on their labels. Screw the earth cable from the sewing head to earth point A. Screw the earth cable 2 from the motor to earth point B. -
Page 28: Mounting The Belt Guard Of The Flange Motor
Mounting and commissioning the machine Fig. 8 - 07 Taking care not to turn the motor shaft 4 or the machine, fit synchronous belt 5. Swing the bearing plate 6 of the motor, so that the belt 5 is tightened. In this position tighten screws 7. -
Page 29: Connecting The Safety Switch
Mounting and commissioning the machine Connecting the safety switch .02.05 Connect plug 1 of safety switch 2 as shown in Fig. 8-09. When the machine head is tilted back,the safety switch prevents the machine from starting when the main switch is on. -
Page 30: Basic Position Of The Machine Drive Unit
Mounting and commissioning the machine Basic position of the machine drive unit .02.07 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. Enter the code number, see Chapter 9.09 Entering/changing the code number. -
Page 31: Mounting The Spool Holder
Mounting and commissioning the machine 8.03 Mounting the spool holder Mount the spool holder as shown in Fig. 8 - 10. Insert the spool holder into the hole in the table top and affix it with the nuts enclosed. Fig. 8 - 10 Table top cutout 8 - 8... -
Page 32: Commissioning
Mounting and commissioning the machine 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 11 Care and maintenance). Have a mechanic check whether the motor of the machine can be operated with the available power supply, and that the motor is correctly connected in the junction box. -
Page 33: Setting Up
The choice of needle depends on the model of the machine and the thread and material used, see Chapter 3.02 Needles and threads for the PFAFF 521 or 3.03 Needles and threads for the PFAFF 1521. 9 - 1... -
Page 34: Winding The Bobbin Thread, Adjusting The Thread Tension
Setting up Winding the bobbin thread, adjusting the thread tension Fig. 9 - 02 Place an empty bobbin 1 onto bobbin winder spindle 2. Thread the bobbin in accordance with Fig. 9 - 02 and wind it clockwise around bobbin 1 a few times. -
Page 35: Removing/Inserting The Bobbin Case On The Pfaff 521
Setting up Removing/inserting the bobbin case on the PFAFF 521 Switch the machine off! Danger of injury if the machine is started accidentally! Removing the bobbin case: Open the bed plate slide. Raise latch 1 and remove bobbin case 2. -
Page 36: Bobbin-Changing/Threading, And Regulating The Bobbin Thread Tension
Setting up Bobbin-changing/threading, and regulating the bobbin thread tension on the PFAFF 1521 Switch the machine off! Danger of injury if the machine is started accidentally! Set take-up lever at its top position. Open bed slide, lift latch 1 and take out the bobbin. -
Page 37: Threading The Needle Thread / Adjusting The Needle Thread Tension
Setting up Threading the needle thread / Adjusting the needle thread tension Fig. 9 - 06 Switch the machine off! Danger of injury if the machine is started accidentally! Thread the machine as shown in Fig. 9 - 06. Adjust the needle thread tension by turning knurled screw 1. 9 - 5... -
Page 38: Entering The Stitch Length
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. -
Page 39: Entering The Start And End Backtacks
Setting up Entering the start and end backtacks Switch on the machine. Switch on the relevant function by pressing the Start backtack and/or End backtack keys. (Arrow appears under the corresponding function key) 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. -
Page 40: Entering/Changing The Code Number
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... - Page 41 Setting up By pressing the corresponding +/- key select the parameter "810". 1500 Confirm the selection by pressing the corresponding +/- key. 1 2 3 4 5 6 7 8 CODE: 1500 Enter the desired code by pressing the corresponding keys, also see Chapter 7.09.02 Key functions.
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Page 42: Setting The Stitch Count Function (On Machines With Bobbin Thread Control By Stitch Counting)
Setting up Setting the stitch count function (on machines with bobbin thread control by stitch counting) Switch on the machine. Select the input mode by pressing the TE/Speed key twice. By pressing the corresponding +/- key select the parameter "105". 30 0 0 0 Set the number of stitches to be sewn with one bobbin by pressing the corresponding +/ - keys. -
Page 43: Setting The Stitch Count Function
Setting up Setting the stitch count function (on machines with bobbin thread supply monitor -926/06) Switch on the machine. Select the input mode by pressing the TE/Speed key twice. By pressing the corresponding +/- key select the parameter "106". Set the number of remaining stitches, which can still be sewn according to the bobbin thread supply monitor (depends on the thread size) by pressing the corresponding +/- key. -
Page 44: Sewing
Sewing Sewing In the sewing mode all settings relating to the sewing operation are shown on the display. Functions can be switched on and off by pressing a key. Values for start backtacks and end backtacks or stitch placement can be changed directly. In this mode a difference is made between manual sewing and programmed sewing. -
Page 45: Programmed Sewing
Sewing Programmed sewing In the programmed sewing mode a difference is made between fixed programs (program numbers 1 and 2) and freely programmable seam programs (program numbers 3-99). The fixed programs are used for the quick and easy production of seams with different stitch lengths or amounts of fullness. -
Page 46: Program Interruption
Sewing Other programmed sewing functions, also see Chapter 7.09.02 Function keys: Stitch placement function Raised roller presser after thread trimming on/off on/off 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... -
Page 47: Error Messages
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 13.08 Explanation of the error messages. -
Page 48: Input
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) -
Page 49: Summary Of The Seam Program Inputs
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. - Page 50 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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Page 51: Seam Program Input Variants
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. -
Page 52: Altering Existing Seam Programs
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. - Page 53 Input 3500 To achieve the illustrated input menu, the following functions must be activated: 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. Select the desired speed value for the number of stitches in the current seam section by pressing the corresponding +/- key.
- Page 54 Input This input menu can only be selected if the end backtack function is activated. 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.
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Page 55: Deleting Seam Programs
Input Deleting seam programs Switch on the machine Select input mode by pressing TE/Speed key twice. Press PM to select the seam program input function. Enter the code number, see Chapter 9.09 Entering/changing the code number. Select the required program number with the corresponding +/- key. Select the input variant "Deleting seam programs"... -
Page 56: Seam Programming Examples
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. - Page 57 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".
- Page 58 Input By pressing the Scroll key, select the following display on the screen. 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).
- Page 59 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.
- Page 60 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 ".
- Page 61 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 ".
- Page 62 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. By pressing the Scroll key, select the following screen display. By pressing the corresponding +/- key select "YES"...
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Page 63: Seam Input Example Using The Teach In Method
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. Press PM to select the seam program input function. - Page 64 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 ".
- Page 65 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 ".
- Page 66 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 7.03 Pedal. By pressing the thread trimming key, switch on the corresponding function for the seam section.
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Page 67: Care And Maintenance
Care and maintenance Care and maintenance Clean .............. daily, more often if in continuous operation Oil level (hook oil reservoir) ..............daily before use Lubricate the bevel gears ..................annually These maintenance intervals are calculated for the average running time of a single shift operation. -
Page 68: Filling The Oil Reservoir
Use both hands to return the machine to an upright position. Danger of crushing between machine head and table top. We recommend PFAFF hard soap grease with a drop point of approx. 150°C Part no. 280-1-120 243. 12 - 2... -
Page 69: Adjustment
Adjustment Adjustment On the PFAFF 521 and the PFAFF 1521 do not use a screw clamp on the needle bar, because this will damage the special coating of the needle bar. Notes on adjustment All following adjustments are based on a fully assembled machine and may only be carried out by expert staff trained for this purpose. -
Page 70: Adjusting The Basic Machine
Adjustment Adjusting the basic machine Needle position in the direction of sewing .04.01 Requirement With the stitch length set at "5", in its front and rear point of reversal the needle should be the same distance from the inside edges of the needle hole. Fig. -
Page 71: Positioning The Needle Crosswise To The Direction Of Sewing
Adjustment Positioning the needle crosswise to the direction of sewing .04.02 Requirement The needle should penetrate the middle of the needle hole as viewed crosswise to the direction of sewing. Fig. 13 - 03 Move the needle bar frame 1 (screws 2) in accordance with the requirement. Screws 2 are accessible through the holes on the back of the housing. -
Page 72: Limiting The Needle Bar Frame
Adjustment Limiting the needle bar frame .04.03 Requirement With the stitch length set at "5", when the needle is in its front and rear point of reversal, screw 4 should be the same distance from the inside edge of its hole. Fig. -
Page 73: Preadjusting The Needle Height
Adjustment Preadjusting the needle height .04.04 Requirement With the needle bar at TDC there must be approx. 22 mm between the point of the needle and the needle plate. 22 mm Fig. 13 - 05 Move the needle bar 1 (screw 2) in accordance with the requirement without turning it. 13 - 5... -
Page 74: Hook-To-Needle Clearance, Needle Rise, Needle Height And Needle Guard
Adjustment Hook-to-needle clearance, needle rise, needle height and needle guard .04.05 Requirements With the needle at 2.0 after BDC and with the stitch length at " 0.8 " 1. the hook point must point to the middle of the needle and be 0.05 to 0.1 mm from the needle, 2. - Page 75 Adjustment Loosen screws 5. Bring the needle bar to 2.0 after BDC. Place the adjustment pin (Part no. 61-111 641-39) into hole 6 and place under pressure. Position the hook point at the middle of the needle and tighten screws 5. Set the needle height in accordance with requirement 2.
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Page 76: Balancing Weight
Adjustment Balancing weight .04.06 Requirement With the needle bar at TDC, the largest eccentricity of the balancing weight 1 must be facing downwards. Fig. 13 - 07 Bring the needle bar to TDC. Turn the balancing weight 1 in accordance with the requirement. Tighten screws 2. -
Page 77: Bobbin-Case-Opener Eccentric And Retaining Lug
Adjustment Bobbin-case-opener eccentric and retaining lug .04.07 Requirements 1. With the needle bar at BDC the bobbin case opener 5 must be at its rear point of reversal. 2. The front edges of retaining spring 3 and retaining lug 6 must be flush. Fig. -
Page 78: Bobbin Case Opener Position
Adjustment Bobbin case opener position .04.08 Requirements 1. The top edges of bobbin case opener 2 and bobbin case lug 5 must be at the same height. 2. When the bobbin case 2 is at its rear point of reversal, the bobbin case carrier 3 and the stop spring 4 must be the width of one thread "X"... -
Page 79: Feed Wheel
Adjustment Feed wheel .04.09 Requirement The feed wheel 1 must 1. protrude above the needle plate by the height of the teeth (approx. 0.8 mm) and 2. be in the middle of the needle plate cutout. Fig. 13 - 10 Adjust the height of the feed wheel 1 by turning screw 2 in accordance with requirement 1. -
Page 80: Clearance Between Roller Presser And Feed Wheel
Adjustment Clearance between roller presser and feed wheel .04.10 Requirement With lever 1 raised the clearance between the roller presser and the feed wheel must be 7 mm. Fig. 13 - 11 Raise lever 1. Move bar 2 (screws 3) in accordance with the requirement. Take care to ensure that the roller presser is parallel to the feed wheel. -
Page 81: Roller Presser
Adjustment Roller presser .04.11 Requirements When the roller presser 1 is resting on the feed wheel 5 it must 1. be parallel to the feed wheel 5 when viewed in the direction of sewing, 2. be in the middle of the needle when viewed in the direction of sewing and 3. -
Page 82: Automatic Presser-Foot Lifter
Adjustment Automatic presser-foot lifter .04.12 Requirement When solenoid 1 is activated, lever 3 for the roller presser must drop automatically. Fig. 13 - 13 Move solenoid 1 (screws 2) in accordance with the requirement. Turn the machine on and check the requirement. Turn the machine off. -
Page 83: Knee Lever
Adjustment Knee lever .04.13 Requirements 1. The knee lever must exhibit a little play before the roller presser is raised. 2. The lever for the roller presser must drop automatically when the knee lever is pressed as far as it will go. 3. -
Page 84: Tension Release
Adjustment Tension release .04.14 Requirement With lever 1 raised or the automatic presser foot lifter activated, both tension discs 6 must be at least 0.5 mm apart. 0,5 mm Fig. 13 - 15 Raise the roller presser using lever 1. Adjust screw 2 (nut 3) in accordance with the requirement. -
Page 85: Thread Check Spring
Adjustment Thread check spring .04.15 Requirements 1. The motion of the thread check spring 7 must be finished when the needle point enters the material (spring stroke approx. 7 mm). 2. When the thread loop is at its largest when going around the hook, the thread check spring must raise slightly from the workpiece rack 1. -
Page 86: Bobbin Winder
Adjustment Bobbin winder .04.16 Requirements 1. With the bobbin winder on, the bobbin winder spindle must engage reliably. With the bobbin winder off, the friction wheel 5 must not engage the drive wheel 1. 2. The bobbin winder must turn off automatically when the thread level is approx. 1 mm from the edge of the bobbin. -
Page 87: Roller Presser Pressure
Adjustment Roller presser pressure .04.17 Requirements 1. The material must be fed reliably. 2. There must not be any pressure marks on the material. Fig. 13 - 18 Adjust the roller presser pressure with screw 1 in accordance with the requirements. Screw 1 is underneath a cover. -
Page 88: Re-Engage Safety Coupling
Adjustment Re-engage safety coupling .04.18 The coupling 1 is set by the manufacturer. When the thread jams, the coupling 1 disengages in order to avoid damage to the hooks. A description of how to engage the coupling follows. Fig. 13 - 19 Remove jammed thread. -
Page 89: Adjusting The Thread Trimmer -900/61
Adjustment Adjusting the thread trimmer -900/61 Preadjusting the control cam .05.01 Requirements 1. With the needle bar at BDC, the recess 3 must be pointing downwards vertically. 2. The control cam 1 must be touching the retaining collar 4 on the left. Fig. -
Page 90: Roller Lever
Adjustment Roller lever .05.02 Requirements 1. With the roller lever 6 in resting position and the needle bar at TDC, there must be a clearance of 0.3 mm between roller 7 and control cam 8. 2. When the thread trimmer is on and the needle bar is at BDC, roller 7 must be in the middle of the recess in control cam 8. -
Page 91: Engaging Solenoid
Adjustment Engaging solenoid .05.03 Requirement With the roller lever 4 engaged and the engaging solenoid activated, there must be a clearance of approx. 1 mm between latch 1 and roller lever 4. Fig. 13 - 22 Disengage latch 1 and push the engaging solenoid up as far as possible. Move the solenoid housing 2 (screw 3) in accordance with the requirement. -
Page 92: Actuating Lever
Adjustment Actuating lever .05.04 Requirement With the thread trimmer in resting position, the right hand side of the actuating lever 3 must be flush with the right side of control cam 4. Fig. 13 - 23 Loosen screws 1 and 2. Move the actuating lever 3 in accordance with the requirement. -
Page 93: Connecting Rod
Adjustment Connecting rod .05.05 Requirement The distance between the centers of the two ball joints of the connecting rod 1 must be 100 mm. 100 mm Fig. 13 - 24 Turn connecting rod 1 (nuts 2 and 3, right and left handed threads) in accordance with the requirement. -
Page 94: Thread-Catcher Height
Adjustment Thread-catcher height .05.06 Requirement The bottom edge of the thread catcher 3 must be 0.8 mm above the bobbin case 4. Fig. 13 - 25 Loosen screws 1 and 2. Position thread catcher 3 over the middle of the bobbin case 4. Move the thread catcher 3 (screw 5) in accordance with the requirement. -
Page 95: Thread-Catcher Position
Adjustment Thread-catcher position .05.07 Requirement With the thread trimmer in resting position, the edges of the thread catcher 1 and knife 6 must be flush (see arrow). Fig. 13 - 26 Position the thread trimmer in resting position. Turn the thread catcher 1 in accordance with the requirement. Bring crank 2 to rest against the bearing case 3 and tighten screw 4, taking care to ensure that the shaft 5 exhibits neither vertical play nor binding. -
Page 96: Knife Pressure
Adjustment Knife pressure .05.08 Requirement When the point of the thread catcher 2 is 4 mm from the front edge of the knife 3, the knife 3 must be lightly touching the thread catcher 2. 4 mm Fig. 13 - 27 Disengage latch 1. -
Page 97: Bobbin-Thread Clamp Spring
Adjustment Bobbin-thread clamp spring .05.09 Requirements The clamp spring 1 must 1. not be pressed back during the thread catcher motion, 2. reliably clamp the bobbin thread after trimming and 3. not hinder the removal and insertion of the bobbin case. Fig. -
Page 98: Control Cam Final Adjustment
Adjustment Control cam final adjustment .05.10 Requirement The cutting process must be just completed when the take-up lever is at TDC. Fig. 13 - 29 Disengage the latch and bring the take-up lever to TDC. Turn the control cam 1 (screws 2) in accordance with the requirement while ensuring that the control cam 1 is touching the retaining collar 3. -
Page 99: Manual Cutting Test
Adjustment Manual cutting test .05.11 Requirements 1. The thread catcher 2 must not push the bobbin thread in front of it during its forwards movement. 2. At the front point of reversal of the thread catcher 2, the bobbin thread must be approx. 2 mm behind the lug of the thread catcher. -
Page 100: Tension Release (During Trimming Process)
Adjustment Tension release (during trimming process) .05.12 Requirement With the solenoid 1 activated, the tension disks 4 must be at least 0.5 mm apart. 0,5 mm Fig. 13 - 31 Operate solenoid 1. Adjust solenoid holder 2 (screws 3) in accordance with the requirement. The service functions can be used to set the point of time for the tension release, see Chapter 13.07 Parameter settings. -
Page 101: Adjusting The Bobbin Thread Supply Monitor -926/06
Adjustment Adjusting the bobbin thread supply monitor -926/06 (only on the PFAFF 1521) Requirement When the bobbin reflection surface is aligned with the transmission and receiver unit, the LED on the amplifier must light up and the voltage must be as high as possible. -
Page 102: Parameter Settings
Adjustment Parameter settings Parameter input example .07.01 Switch on the machine Select input mode by pressing TE/Speed key twice. Select parameter group "500" by pressing the corresponding +/- key. Confirm selection by pressing the corresponding +/- key. Enter the code number, see Chapter 9.09 Entering/changing the code number. 3500 Select the desired parameter, e.g. -
Page 103: List Of Parameters
Horn with section change I = off, II = on Machine configuration 1 = 15xx, 2 = 15XX with sensor, 3 = 521, 4 = 521 with sensor 1 - 5 Lowering speed roller presser I = quick, II = slow... - Page 104 Adjustment Group Parameter Description Setting Setvalue range Position needle lowered 0 - 127 Position cutting solenoid "on" 0 - 127 Position cutting solenoid "tacting" 0 - 127 Position cutting solenoid "off" 0 - 127 Reverse position 0 - 127 Placement stitch position 0 - 127 Position thread tension release 0 - 127...
- Page 105 Adjustment Group Parameter Description Setting Setvalue range Basic position of machine drive (see Chap. 8.02.03) Carry out cold start (see Chap. 13.09) Stitch with handweel P-quota speed controller 1 - 50 I-quota speed controller 0 - 100 P-quota position controller 1 - 50 D-quota position controller 1 - 100...
- Page 106 Adjustment Group Parameter Description Setting Setvalue range Right of access function group 600 0 - 1 Right of access function group 700 0 - 1 Right of access function group 800 0 - 1 Right of access program creation 0 - 1 Enter access code 0 - 9999 1500...
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Page 107: Explanation Of The Error Messages
Adjustment Explanation of the error messages Message Description Error 1: System fault Error 2: Sewing motor Error 3: Area Error 4: End of area Error 5: Pedal operated during start Error 6: Communication error with stepping motor processor Error 7: Ramp end Error 8: End position of needle drive not located... -
Page 108: Carrying Out A Cold Start
Adjustment Carrying out a cold start Switch on the machine. Press the TE/Speed key twice to select the input mode. Select parameter group "600" by pressing the corresponding +/- key. Confirm selection by pressing the corresponding +/- key. Enter the code number, see Chapter 9.09 Entering/changing the code number. RESET Select parameter "604"... -
Page 109: 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 110: Wearing Parts
Wearing parts Wearing parts This list indicates the most important wearing parts. You can request a detailed parts list for the complete machine under parts number 296-12-18 701. PFAFF 521, 1521 12-305 174-15 91-176 329-05 11-130 284-15 11-330 964-15 91-164 697-93/001 (Roller presser, with 30 mm dia.,... - Page 111 Wearing parts For sub-class -900/61 PFAFF 521 PFAFF 1521 11-130 092-15 (2x) 11-130 092-15 (2x) 91-266 299-91 12-315 080-15 (2x) 12-315 080-15 (2x) 91-266 299-91 11-132 172-15 (2x) 11-132 172-15 (2x) 11-130 092-15 (2x) 11-130 092-15 (2x) 12-315 080-15 (2x)
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Page 112: Circuit Diagrams
Circuit diagrams Circuit diagrams Reference list for circuit diagrams Controller Quick P320MS (P321MS) Control panel S2 Sewing head identification (OTE) DX355 Needle pendulum (only with P321MS) Sewing lamp LED Stitch counter Sewing motor Stepping motor feed wheel Stepping motor roller presser Stepping motor needle (only with P321MS) Main switch Pedal set value transmitter... - Page 113 91-191 442-95 General plan - circuit diagrams Part 1 Version 05.02.03 15 - 2...
- Page 114 General plan - circuit diagrams 91-191 442-95 Version 05.02.03 Part 2 15 - 3...
- Page 115 91-191 442-95 General plan - circuit diagrams Part 3 Version 05.02.03 15 - 4...
- Page 116 General plan - circuit diagrams 91-191 442-95 Version 05.02.03 Part 4 15 - 5...
- Page 117 Notes...
- Page 118 PFAFF Industrie Maschinen AG Postfach 3020 D-67653 Kaiserslautern Königstr. 154 D-67655 Kaiserslautern Telefon: (0631) 200-0 Telefax: (0631) 17202 E-Mail: info@pfaff-industrial.com Gedruckt in der BRD Printed in Germany Imprimé en R.F.A. Impreso en la R.F.A.