Pfaff 1491E1 Instruction Manual
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Pfaff 1491E1 Instruction Manual

Pfaff 1491E1 Instruction Manual

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1491E1
1493E1
Instruction Manual
296-12-18 125
Betriebsanleitung engl. 04.98

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Summary of Contents for Pfaff 1491E1

  • Page 1 1491E1 1493E1 Instruction Manual 296-12-18 125 Betriebsanleitung engl. 04.98...
  • Page 2 This Instruction Manual is valid for all models and subclasses listed in the chapter "Specifications". The reprinting, copying or translation of PFAFF Instruction Manuals, whether in whole or in part, is only permitted with our previous authorisation and with written reference to the source.

  • Page 3: Table Of Contents

    Danger ........................1 - 4 Proper use ....................2 - 1 Specifications ..................3 - 1 PFAFF 1491E1, 1493E1 ....................3 - 1 Needle and thread ..................... 3 - 2 Possible models and subclasses................3 - 2 Disposal of the machine ................4 - 1 Transport, packaging and storage ..............

  • Page 4: Contents

    Contents Contents ................Chapter - Page .01.05 Mounting the lower V-belt guard ................. 8 - 3 .01.06 Mounting the synchronizer ..................8 - 4 .01.07 Mounting the spool holder................... 8 - 4 Commissioning the machine ..................8 - 5 Turning the machine on/off ..................8 - 5 Preparation ....................
  • Page 5 Positioning the needle in the direction of sewing (1493E1) ........13 - 6 .04.05 Positioning the needle across the direction of sewing ........... 13 - 7 .04.06 Limiting the needle bar frame (1491E1) ..............13 - 8 .04.07 Preadjusting the needle height ................13 - 9 .04.08 Hook-to-needle clearance, needle rise, needle height and needle guard ....
  • Page 6 Contents Contents ................Chapter - Page Adjusting the edge trimmer -726/05 ............13 - 28 .06.01 Replacing the knife ....................13 - 28 .06.02 Knife position with regard to needle plate............... 13 - 29 .06.03 Knife position across the direction of sewing ............13 - 30 .06.04 Knife height ......................

  • 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: Operating And Specialist Personnel

    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!

  • 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 1491E1 is a high speed, single needle, postbed sewing machine (post to the right of the needle) with forwards and reverse feeding feed-wheel and roller presser as well as a feed-synchronized needle. The PFAFF 1493E1 is a high speed, single needle, postbed sewing machine (post to the right of the needle) with forwards and reverse feeding feed-wheel and roller presser.

  • Page 12: Specifications

    Specifications Specifications PFAFF 1491E1, 1493E1 Stitch type: ....................301 (lockstitch) Handwheel eff. dia.: ....................65 mm Clearance under the roller presser: ................7 mm Clearance width: ....................245 mm Clearance height: ....................115 mm Post height: ......................180 mm Dimensions of sewing head: Length: ......................

  • Page 13: Needle And Thread

    Specifications Needle and thread 60 - 60 40 - 40 20 - 30 or comparable thicknesses of other thread types Possible models and subclasses Model A .................For processing fine materials Model B ................. For processing medium materials Model B/C .......... For processing medium to medium/heavy materials Additional equipment: Subclass -725/04 ...................

  • Page 14: Disposal Of The Machine

    Disposal of the machine 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: Transport Packaging And 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 or to the individual locations of use.

  • Page 16: Explanation Of The 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: Control

    Controls Controls On/off switch Turn the machine on/off by turning On/Off switch 1. Fig. 7 - 01 Keys on the machine head Different functions are triggered by pressing the different keys. Key 1: reverse sewing Key 2: sews one stitch with half stitch length.

  • Page 18: Pedal

    Controls Pedal Machine stop Raise roller presser Trim thread and raise roller presser Other pedal functions can also be programmed (see chapter 10 Sewing) Fig. 7 - 03 Knee switch / knee lever Fig. 7 - 04 Fig. 7 - 05 By activating the knee switch 1 the end of the seam section can be signalized during programmed sewing.

  • Page 19: Lever For Lifting The Roller Presser

    Controls Lever for lifting the roller presser The roller presser is raised by turning lever 1. Fig. 7 - 06 Edge trimmer -725/04 Switching on the edge trimmer The knife is brought into start position and the edge trimmer is switched on by pushing lever 1 to the rear until it engages.

  • Page 20: Edge Trimmer -726/05

    Controls Edge trimmer -726/05 Fig. 7 - 07 The knife is brought to starting position by turning lever 1. The knife is put out of operation by pressing lever 2 down or pressing key 3. The edge guide returns to starting position when lever 4 is pressed. The edge guide is put out of operation by raising lever 5.

  • Page 21: Control Panel

    Controls Control panel The control panel consists of the display and two key panels. Clear Enter Fig. 7 - 09 Display .08.01 In the basic screen the messages in the display are divided into three sections: Status bar The status bar is in the upper section of the display. Here, up to 5 pictograms with the corresponding values can be displayed (e.g.

  • Page 22: Operation-Mode Keys

    Controls Operation-mode keys .08.02 There are two operation modes. The selected mode can be seen by the light emitting diode in the respective key. SEWING mode INPUT mode Function keys .08.03 Arrow keys (right/left) - change menu bars - for positioning the cursor when entering several values in one line Plus/Minus keys - for raising and lowering input values Esc key...

  • Page 23: 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 24: 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 25: Mounting The Upper V-Belt Guard

    Mounting and commissioning the machine Mounting the upper V-belt guard .01.04 Screw position stop 1 onto the right half of V-belt guard 2. Attach both halves 2 and 3 of the belt-guard with screws 4. Slide the lower section 5 of the V-belt guard with its slots over the heads of retaining screws 6.

  • Page 26: Mounting The Synchronizer

    Mounting and commissioning the machine Mounting the synchronizer .01.06 Slide synchronizer 1 onto the shaft. Tighten screws 2 slightly. Plug the synchronizer plug into the electrical socket of the control box. Adjust the synchronizer ( see chapter 13.04.01 Adjusting the synchronizer ). Fig.

  • Page 27: Commissioning The Machine

    Mounting and commissioning the machine Commissioning the machine Before commissioning the machine, check the electrical leads for any damage. Clean the machine thoroughly and oil it / fill with oil ( see chapter 12 Care and maintenance ). Have specialists ensure that the machine’s motor can be operated with the available electricity supply and that it is connected correctly to the terminal box.

  • Page 28: 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 29: Winding The Bobbin Thread, Adjusting The Thread Tension

    Preparation 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 30: Removing/Inserting The Bobbin Case

    Preparation Removing/Inserting the bobbin case Turn the machine off! 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. Fig.

  • Page 31: Threading The Needle Thread / Adjusting The Needle Thread Tension

    Preparation Threading the needle thread / Adjusting the needle thread tension Fig. 9 - 05 Turn the machine off! Swing eye guard 1 upwards. Thread the machine as shown in Fig. 9 - 05. Adjust the needle thread tension by turning knurled screw 2. 9 - 4...

  • Page 32: Adjusting The Stitch Length

    Preparation Adjusting the stitch length Turn the machine on! Clear Enter 1 2 3 4 5 6 7 Fig. 9 - 06 If the display shown in Fig. 9-06 does not appear: Select the function select program. Enter program number 0. Confirm with the Enter key.

  • Page 33: Selecting A Language

    Preparation Selecting a language Turn the machine on. Select INPUT mode. Clear Enter 1 2 3 4 5 6 7 Fig. 9 - 08 Select the function input menu with number key 0. Select the function SWITCH FUNCTIONS with number key 1. Select the function LANGUAGES with number key 3.

  • Page 34: Sewing

    Sewing Sewing Manual sewing Turn the machine on. Clear Enter 1 2 3 4 5 6 7 Fig. 10 - 01 If the display shown in Fig. 10-01 does not appear: Select the function select program. Enter program number 0. Confirm the input with the Enter key.

  • Page 35: Sewing With The Fixed Programs

    Sewing End bartack - When pressed once the single end-bartack is switched on. - When pressed again a double end-bartack is switched on. - Activating a third time switches the end bartack back off again. Stitch length This function opens a direct menu for inputting the desired values for the stitch lengths. Sewing with the fixed programs Fixed programs are stored at program numbers 1 and 2.
  • Page 36 Sewing Clear Enter 1 2 3 4 5 6 7 Fig. 10 - 03 Explanation of the functions in the display: Program interruption This function interrupts the sewing of the seam program. See chapter 10.05 Program interruption. Needle up By activating this function, the machine runs until the needle is at its top position when stopping (without thread trimming).

  • Page 37: Programmed Sewing

    Sewing Programmed sewing Pre-programmed seams can be selected with the program numbers 3 - 99. Turn the machine on. Clear Enter 1 2 3 4 5 6 7 Fig. 10 - 04 Select the function select program. Enter the desired program number from 3 to 99. Confirm this entry with the Enter key.

  • Page 38: Decorative Seams

    Sewing Roller presser down after trimming When this function is active, the roller presser is lowered after the trimming process. Decorative seams Decorative seams are designed as rotary programs. The program does not stop at the end of the program and the thread is not trimmed. The program is repeated until the pedal is brought backwards to the 2nd position ( pedal position 3 in chapter 7.03 Pedal ).

  • Page 39: Error Messages

    Sewing Error messages In the case of an error message, the text and pictogram bars in the display are written over. An error message is triggered by false settings, false elements or seam programs or by overload. ERROR 3 - PROGRAM NUMBER INVALID PROGRAM NUMBER Clear OR PROGRAM INVALID...

  • Page 40: Programming

    Programming Programming Symbols in the status bar Information on the current seam section are displayed in the upper area of the display. Symbols with the corresponding values will also be displayed. Clear 1 2 3 4 5 6 7 Enter Fig.

  • Page 41: Symbols In The Text And Graphic Fields

    Programming Symbols in the text and graphic fields Corresponding to the input status, a stylized seam section with the functions of the seam section end is shown in the middle of the display. ↓ Clear Enter 1 2 3 4 5 6 7 Fig.

  • Page 42: Symbols In The Pictogram Bar

    Programming Symbols in the pictogram bar In this control concept, the functions are selected exclusively using the number keys. The selectable functions are displayed as symbols in the pictogram bar of the display. You select the funciton by pressing the number key which is underneath it. Initial state INPUT mode: Clear Enter...

  • Page 43: Summary Of The Functions In Sewing Mode

    Programming Summary of the functions in SEWING mode SEWING mode program selection Selecion of manual SEWING program selection needle up thread trimming needle position roller presser up after stop roller presser down after trimming bartack suppression start bartack end bartack stitch length Selection of programmed SEWING program interruption (switch to manual SEWING)

  • Page 44: Summary Of The Functions In Input Mode

    Programming Summary of the functions in INPUT mode INPUT mode programming input program number input comment insert delete seam section selection stitch length speed reverse sewing placed stitch 1 - PLACED STITCH ON / OFF 2 - PLACED-STITCH POSITION bartack menu double start-bartack 1 - START-BARTACK PEDAL-DEPENDENT 2 - SPEED...

  • Page 45: Summary Of The Functions In Teach In

    Programming Summary of the functions in Teach In Teach In input program number input comment stitch length bartack menu double start-bartack 1 - START-BARTACK PEDAL-DEPENDENT 2 - SPEED 3 - STITCHES FORWARDS 4 - STITCHES REVERSE start bartack 1 - START-BARTACK PEDAL-DEPENDENT 2 - SPEED 4 - STITCHES REVERSE double end-bartack...

  • Page 46: Summary Of The Functions In Program Administration

    Programming Summary of the functions in program administration Program administration 1 - MEMORY INDEX 1 - PROGRAM INDEX 2 - DISK INDEX 2 - READ PROGRAM FROM DISK 1 - READ ONE PROGRAM (DISK) 2 - READ ALL PROGRAM (DISK) 1 - DELETE ONE PROGRAM (MEMORY) 3 - DELETE PROGRAM 2 - DELETE ALL PROGRAM (MEMORY)

  • Page 47: Summary Of The Service Function

    Programming Summary of the service functions 1 - ONE FEED 5 - SERVICE 1 - STEPPING MOTORS 1 - ALL 2 - CONTINUOUS FEED 1 - ONE FEED 2 - ROLLER PRESSER 2 - CONTINUOUS FEED 3 - FEED WHEEL 1 - ONE FEED 2 - CONTINUOUS FEED 1 - ONE FEED...
  • Page 48 Programming Select the function SERVICE with number key 5. The following display appears: <- -> 1 - STEPPING MOTORS ..2 - SEWING MOTOR ..3 - COLD START ..4 - SOFTWARE VERSION ..Clear 5 - STITCH WITH HANDWHEEL ..

  • Page 49: Creating Seam Programs

    Programming Creating seam programs Altering fixed programs .11.01 Select INPUT mode. The initial INPUT display appears: Clear 1 2 3 4 5 6 7 Enter Fig. 11 - 09 Select function Programming. The menu for inputting the program number appears: PROGRAM NUMBER : Clear [ PERMISSIBLE 0 - 99 ]...
  • Page 50 Programming Programming .11.02 Select INPUT mode. The initial INPUT display appears: Clear 1 2 3 4 5 6 7 Enter Fig. 11 - 12 Select function Programming. The menu for inputting the program number appears: PROGRAM NUMBER : Clear [ PERMISSIBLE 0 - 99 ] 1 2 3 4 5 6 7 Enter Fig.
  • Page 51 Programming Clear Enter 1 2 3 4 5 6 7 Fig. 11 - 15 Explanation of the symbols in the display: Insert This function inserts a seam section into the current seam program. The current seam section is pushed back one position. Delete This function deletes the current seam section.

  • Page 52: Teach In

    Programming Teach In .11.03 In this function the machine can "learn" a seam program while sewing. Select INPUT mode. The basic INPUT screen appears: Clear Enter 1 2 3 4 5 6 7 Fig. 11 - 16 Select the Teach In function. The menu for inputting the program number appears. PROGRAM NUMBER : Clear [ PERMISSIBLE 0 - 99 ]...

  • Page 53: Bartack Menu

    Programming Clear Enter 1 2 3 4 5 6 7 Fig. 11 - 19 Explanation of the symbols in the display: Stitch length This function opens a direct menu for inputting the desired values for the stitch length. Bartack menu This function opens a direct menu for inputting bartack functions.
  • Page 54 Programming Bartack menu In INPUT mode, values for start and end bartacks can be entered in this function after the programming function has been activated. Select the bartack menu function. Clear Enter 1 2 3 4 5 6 7 Fig. 11 - 21 Double start-bartack - Pressing this key once turns the function on or off.

  • Page 55: Placed-Stitch Menu

    Programming Placed-stitch menu In the INPUT mode the placed stitch can be set after the function programming has been enabled. Select the placed-stitch function. 1 - PLACED STITCH ( OFF ) 2 - PLACED-STITCH POSITION Clear Enter 1 2 3 4 5 6 7 Fig.

  • Page 56: Seam Section End

    Programming Seam section end If certain functions are to be carried out automatically at the end of a seam section, these functions can be entered into a menu. In Teach In mode, the menu for inputting appears automatically after the first machine standstill.

  • Page 57: Programming Examples

    Programming Needle position When this function is active, the needle travels to its top position at the seam section end. When this function is not active, the needle positions itself at its lowest point. Program end This function serves to end the seam program. The program data entered is checked. Programming examples The following display representations are only accurate if no program has been inputted previously.
  • Page 58 Programming COMMENT: Clear A B C D E F G H Enter 1 2 3 4 5 6 7 Fig. 11 - 28 Press the arrow key pointing to the right. COMMENT: Clear K L M N O P Q R S T Enter 1 2 3 4 5 6 7 Fig.
  • Page 59 Programming Double click (press twice in rapid succession) on the function double start-bartack to open the start bartack menu for double bartacks ( number key 1 ). 1 - START BARTACK PEDAL-DEPENDENT (OFF) 2 - SPEED 1500 3 - STITCHES FORWARDS Clear 4 - STITCHES REVERSE Enter...
  • Page 60 Programming Clear Enter 1 2 3 4 5 6 7 Fig. 11 - 31 The double start-bartack function still has to be activated ( number key 1 ). After the number key has been pressed, the symbol is displayed on a dark background. Enter Close the bartack menu function with the Enter key.
  • Page 61 Programming Select the function seam section end ( number key 9 ). NO. OF STITCHES 0 Clear Enter 1 2 3 4 5 6 7 Fig. 11 - 38 The stitch counter function is already on ( dark background ). By activating the function ( number key 1 ) the menu for inputting the number of stitches is opened.
  • Page 62 Programming Program the second seam section: IIn this seam section the - stitch length should be 5.0 mm - and a stitch count should be carried out ( 1 stitch ). NO. OF STITCHES 0 Clear Enter 1 2 3 4 5 6 7 Fig.
  • Page 63 Programming NO. OF STITCHES: 0 STITCHES Clear ( PERMISSIBLE: 1-999 ) 1 2 3 4 5 6 7 Enter Fig. 11 - 45 Enter the desired number of stitches. Enter Confirm this number of stitches with the Enter key. NO. OF STITCHES 1 Clear Enter 1 2 3 4 5 6 7...
  • Page 64 Programming NO. OF STITCHES 1 Clear Enter 1 2 3 4 5 6 7 Fig. 11 - 48 Switch on the reverse sewing function ( number key 6 ). NO. OF STITCHES 0 Clear Enter 1 2 3 4 5 6 7 Fig.
  • Page 65 Programming Program the fifth ( last ) seam section: The seam section should have - a double end-bartack ( 1 stitch forwards and reverse ), - stitch counting ( 5 stitches ), - a stitch length ( for roller presser and feed wheel ) of 2.5 mm - and trim the thread at the end of the seam section.
  • Page 66 Programming NO. OF STITCHES 1 Clear Enter 1 2 3 4 5 6 7 Fig. 11 - 53 Select the stitch length function ( number key 4 ). Enter the value for the stitch length. Confirm this entry by pressing the Enter key. Enter Select the seam section end function ( number key 9 ).

  • Page 67: Example For Programming A Decorative Seam

    Programming Example for programming a decorative seam .15.02 The decorative seam to be sewn should have: - four seam sections - and be saved with the comment "Deco 1" - at program number 6 Select INPUT mode. Select the programming function. Enter the program number.
  • Page 68 Programming NO. OF STITCHES 0 Clear 1 2 3 4 5 6 7 Enter Fig. 11 - 58 If this function is not active, switch on the stitch counter ( number key 1 ). Select the stitch counter function again to open the input menu. Enter the number of stitches.
  • Page 69 Programming Enter Confirm the entry with the Enter key. Select the seam section end function ( number key 9 ). If not active, switch the stitch counter on ( number key 1 ). Select the stitch counter function again to open the input menu. Enter the number of stitches.

  • Page 70: Example Of Teach In Programming

    Programming Program the fourth (last) seam section: This seam section should have - stitch counting ( 1 stitch ) - and a stitch length of 3.5 mm. Select the seam section end function ( number key 9 ). Select the stitch counter function to open the input menu. Enter the number of stitches.
  • Page 71 Programming Select INPUT mode. Select the Teach In function ( number key 5 ). Enter the program number. Enter Confirm with the Enter key. Enter comment. Enter Confirm with the Enter key. Clear Enter 1 2 3 4 5 6 7 Fig.
  • Page 72 Programming Clear Enter 1 2 3 4 5 6 7 Fig. 11 - 63 Switch on the knee switch function ( number key 3 ). Activate the knee switch. Enter Confirm the seam section end by pressing the Enter key. NO.
  • Page 73 Programming Select the stitch length function ( number key 1 ). Enter the stitch length. Enter Confirm with the Enter key. Sew the second seam section manually. Switch on the pedal function ( number key 2 ). Bring the pedal backwards into the 2nd position. The roller presser up after stop function is activated automatically.

  • Page 74: Care And Maintenance

    Care and maintenance Care and maintenance Clean .............. daily, more often if in continuous operation Oil level (lubricating the front parts) ............daily before use Oil level (Thread lubrication) ..............daily before use Lubricate the hook ................... daily before use Lubricate the bevel gears ..................

  • Page 75: Lubricating The Hook

    Fig. 12 - 03 Use only oil with a mean viscosity of 22.0 mm /s at 40°C and a density of 0.865 g/cm at 15°C. We recommend PFAFF sewing machine oil Part no. 280-1-120 144. 12 - 2...

  • Page 76: Lubricating The Bevel Gears

    Fig. 12 - 04 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. Filling the oil reservoir of the thread lubricator Check the oil level before every use.

  • Page 77: Cleaning The Air Filter On The Control Box

    Use only oil with a mean viscosity of 22.0 mm /s at 40°C and a density of 0.865 g/cm 15°C. We recommend PFAFF sewing machine oil Best.-Nr. 280-1-120 144. Fig. 12 - 07 12 - 4...

  • Page 78: Adjustment

    Adjustment Adjustment Notes on adjusting All adjustments in these adjustment instructions are based on a completely installed machine and must only be carried out by appropriately trained specialists. Covers on the machine which have to be removed and replaced for checks and adjustment work are not mentioned here.

  • Page 79: Adjusting The Basic Machine

    Adjustment Adjusting the basic machine Adjusting the synchronizer .04.01 Requirement When the point of the needle descending in sewing direction is at the top edge of the needle plate the reference point must be at " 0". REFERENZ REFERENCE Clear - 180 - 90 + 90...
  • Page 80 Adjustment Select the SEWING MOTOR function. Select the ADJUST SYNCHRONIZER function. Turn the balance wheel in sewing direction until the point of the descending needle is at the top edge of the needle plate. With the needle in this position, turn synchronizer 2 until the cursor in the display is at "0".

  • Page 81: Setting The Machine Configuration

    Select input menu ( number key 0 ). Select SERVICE. Select CONFIGURATION Press number keys to set the configuration according to requirement. Number Machine configuration 1471E1, 1474E1, 1491E1 and 1493E1 1471E1, 1474E1, 1491E1 and 1493E1 with sensor 421E1 reserved 421E1 with sensor reserved 1421E1...

  • Page 82: Positioning The Needle In The Direction Of Sewing (1491 E1)

    Adjustment Positioning the needle in the direction of sewing ( 1491 E1 ) 04.03 Requirement With the stitch length set at "5", the needle must be the same distance from the inner edges of the needle hole in both its front and rear points of reversal. Fig.

  • Page 83: Positioning The Needle In The Direction Of Sewing (1493E1)

    Adjustment Positioning the needle in the direction of sewing ( 1493E1 ) 04.04 Requirement The needle must penetrate the middle of the needle hole as viewed in the direction of sewing. Fig. 13 - 04 Move the needle bar frame 1 ( screws 2 and 4 and nut 3 ) in accordance with the requirement.

  • Page 84: Positioning The Needle Across The Direction Of Sewing

    Adjustment Positioning the needle across the direction of sewing 04.05 Requirement The needle must penetrate the middle of the needle hole as viewed across the direction of sewing. Fig. 13 - 05 Move the feed wheel post 1 (screws 2, 3 and 4) in accordance with the requirement. Screws 4 remain loosened for the following adjustments.

  • Page 85: Limiting The Needle Bar Frame (1491E1)

    Adjustment Limiting the needle bar frame ( 1491E1 ) 04.06 Requirement With the stitch length set at "5", screw 4 must be the same distance from the inner edge of the mounting hole when the needle is at both the front and rear points of reversal.

  • Page 86: Preadjusting The Needle Height

    Adjustment Preadjusting the needle height 04.07 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 - 06 Move the needle bar 1 ( screw 2 ) in accordance with the requirement without turning it. 13 - 9...

  • Page 87: Hook-To-Needle Clearance, Needle Rise, Needle Height And Needle Guard

    04.08 Requirements With the needle at 1.8 after BDC and with the stitch length at "0.8" (only PFAFF 1491E1) 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 88 Adjustment Fig. 13 - 07 Move the hook post in accordance with requirement 1 and tighten screws 4. Pull the adjustment pin out of hole 5. Observing the bevel gear play, tighten screws 2. Bring retaining collar 6 to rest against bevel gear 7 and tighten screws 1 and 3. Tighten screws 8 on both sides of the post.

  • Page 89: Bobbin Case Opener Height

    Adjustment Bobbin case opener height 04.09 Requirement The top edges of the bobbin case opener 1 and the bobbin case base 3 must be at the same height. Fig. 13 - 08 Move the bobbin case base 1 ( screws 2 ) in accordance with the requirement. 13 - 12...

  • Page 90: Bobbin Case Opener Stroke

    Adjustment Bobbin case opener stroke 04.10 Requirement When the bobbin case opener presses the bobbin case to the furthest extent, the projection of the bobbin case must protrude 0.3 - 0.5 mm from the rear edge of the needle plate recess. 0.3 - 0.5 mm Fig.

  • Page 91: Feed Wheel Height

    Adjustment Feed wheel height 04.11 Requirement The feed wheel must protrude above the needle plate by the height of the teeth ( approx. 0.8 mm ). Fig. 13 - 10 Swing out the roller presser. Loosen screw 1. Turn the eccentric ( screw 3 ) which is accessible through hole 2 in accordance with the requirement.

  • Page 92: Clearance Between Roller Presser And Feed Wheel

    Adjustment Clearance between roller presser and feed wheel 04.12 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 the presser foot bar ( screws 2 ) in accordance with the requirement. Take care to ensure that the roller presser is parallel to the feed wheel.

  • Page 93: Roller Presser

    Adjustment Roller presser 04.13 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 94: Automatic Presser-Foot Lifter

    Adjustment Automatic presser-foot lifter 04.14 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 95: Knee Lever

    Adjustment Knee lever 04.15 Requirements 1. The knee lever must have 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 96: Tension Release

    Adjustment Tension release 04.16 Requirement With lever 1 raised or the automatic presser foot lifter activated, both tension discs 6 must be at least 0.5 mm apart. Fig. 13 - 15 Raise the roller presser using lever 1. Adjust screw 2 ( nut 3 ) in accordance with the requirement. Raise the roller presser using the automatic presser foot lifter or the knee lever.

  • Page 97: Thread Check Spring

    Adjustment Thread check spring 04.17 Requirements 1. The motion of the thread check spring 7 must be finished when 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 98: Bobbin Winder

    Adjustment Bobbin winder 04.18 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 99: Roller Presser Pressure

    Adjustment Roller presser pressure 04.19 Requirement The material must be fed reliably. 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 requirement. Screw 1 is underneath a cover. When the roller presser pressure is low, the lowering speed of the roller presser can be increased by turning on the function ROLLER PRESSER DE-ENERGIZER.

  • Page 100: Adjusting The Edge Trimmer -725/04

    Adjustment Adjusting the edge trimmer -725/04 Replacing the knife 05.01 Fig. 13 - 19 Turn the machine off. Loosen screw 2 and remove knife 1. Insert a new knife 1 and slide it flush against the needle plate insert 3. Tighten screw 2.

  • Page 101: Knife Height

    Adjustment Knife height .05.02 Requirement With the edge trimmer swung in, the middle of the knife bracket must be at the same height as the upper edge of the needle plate. Fig. 13 - 20 Turn the machine off and swing in the edge trimmer. Loosen screw 1.

  • Page 102: Knife Stroke

    Adjustment Knife stroke .05.03 Requirement The knife stroke can be set within a range of 2.0 to 3.5 mm for the ideal adaptation to all materials used. Fig. 13 - 21 Move crank 1 ( nut 2 ) in slot 3 in accordance with the requirement. 13 - 25...

  • Page 103: Knife Motion

    Adjustment Knife motion 05.04 Requirement With the edge trimmer swung in and the needle in the needle hole, half of the motion of the knife 3 must take place in front of, and half behind the needle when the motor shaft is turned by hand.

  • Page 104: Knife Position

    Adjustment Knife position 05.05 Requirement With the edge trimmer swung in, the knife 1 must lightly touch the needle plate insert. Make sure these is no whistling sound during the cutting process. Fig. 13 - 23 Turn the machine off and swing in the edge trimmer. Move the knife 1 ( screw 2 ) in accordance with the requirement.

  • Page 105: Adjusting The Edge Trimmer -726/05

    Adjustment Adjusting the edge trimmer -726/05 Replacing the knife 06.01 Fig. 13 - 24 Turn the machine off. Loosen screw 2 and remove knife 1. Insert a new knife 1 and slide it flush to the needle plate insert. Tighten screw 2. Check chapter 13.06.02 Knife position with regard to needle plate and chapter 13.06.03 Knife position across the direction of sewing.

  • Page 106: Knife Position With Regard To Needle Plate

    Adjustment Knife position with regard to needle plate 06.02 Requirement With the edge trimmer swung in, the knife 2 must be parallel to the needle plate insert. Fig. 13 - 25 Turn the machine off and swing in the edge trimmer. Loosen screw 1 and push the knife 2 back a little.

  • Page 107: Knife Position Across The Direction Of Sewing

    Adjustment Knife position across the direction of sewing 06.03 Requirement With the edge trimmer swung in, the knife 2 must be vertical and lightly touch the needle plate insert. Fig. 13 - 26 Turn the machine off and swing in the edge trimmer. Position the knife 1 vertically by turning the milled screw.

  • Page 108: Knife Height

    Adjustment Knife height 06.04 Requirement With the edge trimmer swung in, the middle of the knife bracket must be at the same height as the top edge of the needle plate. Fig. 13 - 27 Turn the machine off and swing in the edge trimmer. Turn milled screw 1 in accordance with the requirement.

  • Page 109: Knife Motion

    Adjustment Knife motion 06.05 Requirement With the edge trimmer swung in and the needle in the needle hole, half of the motion of the knife 3 must be in front of, and half behind the needle when the motor shaft is turned by hand.

  • Page 110: Knife Stroke

    Adjustment Knife stroke 06.06 Requirement The knife stroke can be set within a range of 1.0 to 3.5 mm for the ideal adaptation to all materials used. Fig. 13 - 29 Turn eccentric 1 ( screws 2 ) on the rear machine head so that the marking of the desired cutting stroke is opposite marking 3.

  • Page 111: Adjusting The Thread Trimmer -900/53

    Adjustment Adjusting the thread trimmer -900/53 Removing the scissors 07.01 Fig. 13 - 30 Open post cover 1 and unscrew post cover plate 2 ( screws 3 ). Loosen screw 4. Swing out bobbin case base 5 by hand and hold it in this position. Remove bolt 6.

  • Page 112: Control Cam To Bobbin Opener And Tripping Lever

    Adjustment Control cam to bobbin opener and tripping lever 07.02 Requirements 1. Control cam 2 must be touching bearing collar 3. 2. The roller of tripping lever 6 must fall slightly into the path of control cam 2. Fig. 13 - 31 Loosen screws 1 and bring control cam 2 to rest against bearing collar 3.

  • Page 113: Radial Position Of The Tripping Lever

    Adjustment Radial position of the tripping lever 07.03 Requirement With the tripping lever 3 in resting position, there must be a clearance of 0.3 mm between its roller and the circumference of the control cam 4. Fig. 13 - 32 Bring the needle bar to BDC.

  • Page 114: Engaging Solenoid

    Adjustment Engaging solenoid 07.04 Requirement With the trimming device swichted on, the field core must still be 1 mm before its lower stop. Fig. 13 - 33 Bring the needle bar to BDC and activate the tripping lever by hand. Push solenoid housing 1 ( screw 2 ) up as far as possible and then move it in accordance with the requirement.

  • Page 115: Scissor Drive Lever

    Adjustment Scissor drive lever 07.05 Requirement The top edge of screw 1 must protrude approx. 9 mm from the recess on the housing. Fig. 13 - 34 Turn screw 1 ( nut 2 ) in accordance with the requirement. 13 - 38...

  • Page 116: Adjusting The Control Cam With The Adjustment Gauge In Relation To The Bobbin Opener And The Scissor

    Adjustment Adjusting the control cam with the adjustment gauge in relation to the bobbin 07.06 opener and the scissor Requirements With the needle bar at BDC, both control cams must be positioned in such a way that 1. adjustment gauge 5 can be slid into the grooves of both control cams, 2.

  • Page 117: Radial Position Of The Control Cam In Relation To The Bobbin Opener

    Adjustment Radial position of the control cam in relation to the bobbin opener 07.07 Requirement The retracting motion of the bobbin opener must begin when the needle bar is 4 mm after BDC. Fig. 13 - 36 Activate the tripping lever by hand. The roller of the tripping lever 1 must engage easily and unobstructedly in the cam track.

  • Page 118: Scissor Tripping-Lever In Relation To The Control Cam Of The Scissor

    Adjustment Scissor tripping-lever in relation to the control cam of the scissor 07.08 Requirements At the left point of reversal of the rock shaft 3 1. the roller of tripping lever 4 and the roller of back-racking lever 5 must be in the middle of control cam 6 and 2.

  • Page 119: Control Cam In Relation To Scissor

    Adjustment Control cam in relation to scissor 07.09 Requirements 1. The cutting motion must begin when the needle bar is 0.6 mm after TDC. 2. There must be a clearance of 9 mm between control cams 2 and 4. 9 mm Fig.

  • Page 120: Scissor Return Lever

    Adjustment Scissor return lever 07.10 Requirement When the roller of tripping lever 3 is exactly at the point of the trip of control cam 2 the maximum distance between the roller of return lever 4 and control cam 2 must be 0.2 mm.

  • Page 121: Scissor Return Control

    Adjustment Scissor return control 07.11 Requirements 1. When the point of the trip of control cam 1 is exactly at the roller of tripping lever 2 and trip 3 is touching the beginning of the angular edge of guide plate 5 ( see arrow ) there must be a clearance of approx.

  • Page 122: Installing The Scissor

    Adjustment Installing the scissor 07.12 Requirements 1. The pin of bolt 4 must protrude into the cam tracks of the scissor halves. 2. The scissor must work with as little lateral play as possible. Fig. 13 - 41 Swing out drive bar 1. Swing out bobbin opener 2 by hand and hold it.

  • Page 123: Eccentric Sleeve

    Adjustment Eccentric sleeve 07.13 Requirements 1. In its starting position the scissor must be flush with the contour of the needle plate. 2. The scissor must lightly touch the needle plate and the eccentric sleeve 2. Fig. 13 - 42 Loosen screw 1 enough so that eccentric sleeve 2 can still be turned.

  • Page 124: Scissor Drive Bar

    Adjustment Scissor drive bar 07.14 Requirements 1. In its starting position the scissor must be flush with the needle plate contour. 2. At the TDC of the drive bar 2 there must be a safety clearance of at least 0.3 mm between pin 5 and the top end of the cam guide.

  • Page 125: Scissor Function Test

    Adjustment Scissor function test 07.15 Requirements 1. The threads must be cut neatly. 2. After being trimmed, the bobbin thread must be held securely by the thread trapper. Fig. 13 - 44 Turn the machine on. Sew a few stitches and turn the on/off switch off. Activate the engaging lever by hand and close the post cover while ensuring that pressure disk 1 is stuck into the post cap.
  • Page 126 Adjustment Fig. 13 - 44 When the scissor is advancing, the thread trapper must first trap and hold the threads on the scissor ( if necessary adjust the thread trapper as required after loosening retaining screw 4 ). As the process continues, both the bobbin thread and the part of the thread loop closest to the scissor which is held by the catching lug must be cut reliably.

  • Page 127: Tension Release (Only On Machines With Thread Tension Control -906/10)

    Adjustment Tension release (only on machines with thread tension control -906/10) Requirement With solenoid 1 activated the tension disks 3 must be at least 0.5 mm apart. Fig. 13 - 45 Activate solenoid 1. Move solenoid 1 ( screws 2 ) in accordance with the requirement. The timing of the tension release can be adjusted via the service functions ( see chapter 11.09 Summary of the service functions and chapter 13.09 Parameter adjustments ).

  • Page 128: Parameter Adjustments

    Adjustment Parameter adjustments Adjusting positions .09.01 Turn the machine on Select INPUT mode. Select the input menu function (number key 0). Select the SERVICE function. Select the SEWING MOTOR function. Select the ADJUST POSITIONS function. (The current parameter settings are shown in the display.) 1 - POSITION DOWN 2 - POSITION UP 3 - CUTTING MAGNET POSITION...

  • Page 129: Adjusting The Counter

    Adjustment Adjusting the counter .09.02 Turn the machine on. Select INPUT mode. Select the input menu function (number key 0). Select the COUNTER function. 1 - START DELAY AFTER ROLLER PRESSER LOWER 0.15S 2 - ROLLER PRESSER LIFT DELAY 0.02S 3 - SOFT START STITCHES Clear Enter...
  • Page 130 G.M. PFAFF Aktiengesellschaft Postfach 3020 D-67653 Kaiserslautern Königstr. 154 D-67655 Kaiserslautern Telefon: (0631) 200-0 Telefax: (0631) 172 02 Telex: 45753 PFAFF D Gedruckt in der BRD Printed in Germany Imprimé en R.F.A. Impreso en la R.F.A.

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