Pfaff 3117 Instruction Manual
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Pfaff 3117 Instruction Manual

Pfaff 3117 Instruction Manual

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3117

Instruction Manual

296-12-17 545
Betriebsanl. engl. 11.96

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Summary of Contents for Pfaff 3117

  • Page 1: Instruction Manual

    3117 Instruction Manual 296-12-17 545 Betriebsanl. engl. 11.96...
  • Page 2 At the time of printing, all information and illustrations contained in this document were up to date. Subject to alteration The reprinting, copying or translation of PFAFF Instruction Manuals, whether in whole or in part, is only permitted with our previous permission and with written reference to the source.

  • Page 3: Table Of Contents

    Contents Contents ............Chapter - Page Safety ............... 1 - 1 Directives ................1 - 1 General notes on safety ............1 - 1 Safety symbols ..............1 - 1 Built in safety systems ............1 - 2 Important points for the user ..........1 - 2 Operating and specialist personnel ........

  • Page 4: Contents

    Contents Contents ............Chapter - Page Winding the bobbin thread, adjusting the thread tension ... 11 - 2 Adjusting the needle thread tension on purl buttonholes and flat bartacks........11 - 3 Threading the bobbin case, adjusting the thread tension on purl buttonholes ..........11 - 4 Adjusting the needle thread tension on flat buttonholes and flat bartacks ........
  • Page 5 Contents Contents ............Chapter - Page Lateral movement of the needle ......... 14 - 11 06.06 Seam construction ............... 14 - 12 Left purl seam ..............14 - 12 07.01 Right purl seam ..............14 - 13 07.02 Bartack ................. 14 - 14 07.03 Description of seam construction ........
  • Page 6 Contents Contents ............Chapter - Page Needle thread puller ............14 - 57 Knife triggering time ............14 - 58 Reducing speed ..............14 - 59 Switch off time..............14 - 60 Bobbin winder..............14 - 61 Lubricating the feed regulator eccentric ......14 - 62 Electrical switch ..............

  • Page 7: Safety

    Safety Safety Directives The PFAFF 3117 was built in accordance with the following European regulations: EC Machine Directive ( 89/392/EEC, 91/368/EEC, 93/44/EEC, 93/68/EEC ) Safety of Appliances Law, Machine Ordinance - 9GSGV EC Directive „Electromagnetic Compatibility“ ( 89/336/EEC, 92/31/EEC, 93/68/EEC )

  • Page 8: Safety Symbols

    Safety symbols Danger! Points to be observed. Danger of injury for operating and specialist personnel! Built in safety systems The PFAFF 3117 is equipped with a push button for stopping the machine immediately in dangerous or emergency situations. 1 - 2...

  • Page 9: Important Points For The User

    It is the obligation of the operator to ensure that none of the safety mechanisms are removed or deactivated. It is the obligation of the operator to ensure that only authorised persons operate and work on the machine. Further information can be obtained at your PFAFF agent. Operating and specialist personnel Operating personnel .06.01 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.

  • Page 10: Specialist Personnel

    Safety Specialist personnel .06.02 Specialist personnel are persons with a specialist education in the fields of electrics, electronics and mechanics. They are responsible for the lubrication, maintenance, repair and adjustment of the machine. The specialist personnel is obliged to observe the following points and must: always observe the Notes on Safety in the Instruction Manual! switch of the On/Off switch before carrying out adjustments or repairs and ensure that it cannot be switched on again unintentionally!

  • Page 11: Proper Use

    Purl Buttonholes Flat buttonholes Abb. 2 - 01 The PFAFF 3117 is a machine for the automatic production of purl or flat buttonholes with two square, flat bartacks on linen and apparel. If required, the buttonhole can be sewn around twice.

  • Page 12: Specifications

    Specifications Specifications Model: A: ...................For processing fine materials B: ................... For processing medium materials Speed: ......................max. 4000 spm Stitch type: ....................zigzag lockstitch Stitch type: ........................304 Needle bar stroke:.............. 34.5 mm; adjustable to 38 mm Workpiece thickness:..................max. 4 mm Clearance under the work clamp: ..............

  • Page 13: Disposal Of The Machine

    Disposal of the machine The proper disposal of the machine is the responsibility of the customer. The materials used on the PFAFF 3117 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 14: Notes On Testing In Accordance With En 60204-1

    Notes on testing in accordance with EN 60204-1 Notes on testing in accordance with EN 60204-1 This machine was tested in accordance with EN 60204-1 before delivery. The following tests were carried out on the machine: Continuous connection of the protective conductor systems a) Visual check b) Check of the connection of the protective conductor Insulation check...

  • Page 15: Transport, Packaging And Storage

    Transport, packaging and storage Transport, packaging and storage Transport to the customer’s premises Within Germany, the machine is delivered without packaging. Certain machines are packaged for export. Transport within the customer’s premises Fig. 6 - 01 The manufacturer carries no liability for transport within the customer’s premises. Care is to be taken to transport the machine in an upright position.

  • Page 16: Explanation Of The Symbols

    Symbol key 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 Clean, care Servicing, repair, adjustment, maintenance Lubrication, greasing, oiling 7 - 1...

  • Page 17: Operational Controls

    Operational controls Operational controls On / Off switch Switch the machine on and off with switch 1. When the machine is on, the control lamp in switch 1 is lit. Fig. 8 - 01 Stop button In case of danger and in emergency situations, stop the machine by pressing the stop button 1.

  • Page 18: Functions Of The Pedal

    Operational controls Functions of the pedal Machine stop Work clamp down Fig. 8 - 03 Button for stopping knife actuation If the actuation of the knife is to be stopped, press button 1. Fig. 8 - 04 8 - 2...

  • Page 19: Functions Of The Quick Control Panel

    Operational controls Functions of the quick control panel QUICK digital Programm Fig. 8 - 05 Functions of the switches and buttons .05.01 Switch 1 is for changing between the RPM and number-of-buttonholes readings in the display. When this switch is up, the RPM reading is displayed. The RPM can be altered using buttons T3 ( + ) and T4 ( - ).

  • Page 20: Switching The Countdown Device On/Off

    Operational controls QUICK digital Programm Fig. 8 - 05 Switch 3 serves to start and stop winding the bobbin. When the switch is up, winding can take place as long as the foot pedal is pressed and one cycle is not yet completed. Switch 4 switches between work cycles.

  • Page 21: List Of Parameters

    Operational controls List of parameters 05.03 Group Parameter Explanation Adjustment range Standard value No. of stitches for reduced speed n1 Reduced speed n1 2250 1000 Reduced speed n3 1000 2700 2000 Alteration of speed n2 in steps of: I = 10 RPM II = 100 RPM I = Display mode display machine unit counter...

  • Page 22: Fault Indication In The Display

    Operational controls Fault indication in the display .05.04 Faults are documented via the quick control panel. K-faults K-faults are machine specific faults. The following readings can appear in the quick- control-panel display: = pedal ( S1.1 / S1.2 ). 3116 = no autoselect.

  • Page 23: Mounting And Initial Operation

    Due to reasons of packaging, the table top is lowered on machines with stands. When putting the machine into operation, the table top should be raised again or adjusted to an ergonomically suitable height. The PFAFF 3117 is available in two mountings. Mounting 2 Mounting 1...

  • Page 24: Initial Operation

    Mounting and initial operation Initial operation Check the machine for any possible damage, especially the electrical and pneumatic leads. Clean the machine thoroughly and then oil it ( see chapter 13 Maintenance and care ). Connect the machine to the power supply. Connect the machine to the compressed air supply.

  • Page 25: Switching The Machine On/Off

    Switching the machine On / Off Switching the Machine On / Off On / Off switch Switch the machine on and off at switch 1. When the machine is switched on, the control lamp in switch 1 is lit. Fig. 8 - 01 10 - 1...

  • Page 26: Preparation

    Preparation Preparation All regulations and notes in this Instruction manual are to be adhered to. Special attention is to be taken to the safety requirements! All Preparation work must be carried out only by appropriately trained persons. The machine is to be separated from the power supply at the On/Off switch or by pulling the plug out of the socket whenever carrying out preparation work! Inserting the needle Switch off the machine!

  • Page 27: Winding The Bobbin Thread, Adjusting The Thread Tension

    Preparation Winding the bobbin thread, adjusting the thread tension Abb. 11 - 02 Place an empty bobbin 1 onto the bobbin shaft 2. Thread the machine in accordance with Fig. 11-02. Push key 3 to the end of the bobbin shaft 2. Regulate the thread tension by turning the milled screw 4.

  • Page 28: Adjusting The Needle Thread Tension On Purl Buttonholes And Flat Bartacks

    Preparation Adjusting the needle thread tension on purl buttonholes and flat bartacks Fig. 11 - 03 Open tensioner 1 as far as possible. Adjust tensioner 2 so that the knots of the stitches are in the middle of the material. Adjust tensioner 1 so that the knots of the purl stitches are pulled up.

  • Page 29: Threading The Bobbin Case, Adjusting The Thread Tension On Purl Buttonholes

    Preparation Threading the bobbin case, adjusting the thread tension on purl buttonholes Fig. 11 - 05 Insert bobbin 1 into bobbin case 2. Pass the thread through slot 3 and under spring 4. Then pass the thread into slot 5. Pass the thread out of hole 6 again.

  • Page 30: Adjusting The Needle Thread Tension On Flat Buttonholes And Flat Bartacks

    Preparation Adjusting the needle thread tension on flat buttonholes and flat bartacks Fig. 11 - 03 Adjust tensioners 1 and 2 ( less tension ) so that the knots in the stitches are pulled onto the underside of the material. Carry out this adjustment with a needle thread and a bobbin thread of different colours.

  • Page 31: Threading The Bobbin Case, Adjusting The Thread Tension On Flat Buttonholes

    Preparation Threading the bobbin case, adjusting the thread tension on flat buttonholes Fig. 11 - 07 Insert bobbin 1 into bobbin case2. Pass the thread through slot 3 and under spring 4. Then pass the thread into slot 5. Then pass the thread into slot 6 again. Pass the thread through eye 7.

  • Page 32: Threading The Needle Thread

    Preparation Threading the needle thread Switch the machine off! Thread guide for cotton covered threads Thread guide for synthetic threads Fig. 11 - 08 Thread the needle thread in accordance with fig. 11 - 08. Attention! Needle point and knife blade! Danger of injury! 11 - 7...

  • Page 33: Inserting The Bobbin Case

    Preparation Inserting the bobbin case Switch the machine off! Open the cover 1 to the hook compartment. Insert the bobbin case 2 into the bobbin case carrier 3. Close the hook compartment with the cover 1. Fig. 11 - 09 Adjusting the sewing pressure Adjust the pressure on the work clamp by turning the adjustment screw 1.

  • Page 34: Adjusting The Seam Width

    Preparation Adjusting the purl seam width Open cover 1. Adjust the purl seam width by turning the milled screw 2. Any larger change to the purl seam width also requires the adjustment of the right purl seam position. Fig. 11 - 11 Adjusting the left purl seam position Adjust the left purl seam position by turning the milled screw 1.

  • Page 35: Adjusting The Right Purl Seam Position

    Preparation Adjusting the right purl seam position Adjust the right purl seam position by turning the milled screw 1. The right purl seam position must be adjusted in relation to the left purl seam position so that the cutting area between the two seams is adequately wide.
  • Page 36 Preparation Adjusting the buttonhole length Fig. 11 - 15 Switch the machine off! Open the bed slide 1. Loosen nut 2. Move bolt 3 in the slot so that the pointer 4 is pointing to the desired value. Only the scale on the inside of the curve is to be used here.

  • Page 37: Adjusting The Number Of Stitches Per Buttonhole

    Preparation Adjusting the number of stitches per buttonhole Switch the machine off! Open cover 1. Remove cogs 2 and 3. Select cogs 2 and 3 in accordance with chart 4. Replace cogs 2 and 3. Close cover 1. Fig. 11 - 16 Changing the knife Switch the machine off! Remove screw 1.

  • Page 38: Changing The Plastic Insert In The Needle Plate

    Preparation Changing the plastic insert in the needle plate Switch the machine off! Loosen screw 1. Loosen the feeder 2. Change or rotate the plastic insert 3. Tighten screw 1. Fig. 11 - 18 Changing the work clamp Switch the machine off! Disassemble the knife.

  • Page 39: Sewing

    Sewing Sewing Fig. 12 - 01 Do not operate the machine without its take up lever guard 1, finger guard 2, or eye guard 3! The hand crank 4 must be folded in during operation! The cover 5 and the bed slide 6 must be closed. The machine may only be operated when all covers are completely installed and the belt guard cover is closed! Danger of injury! The machine must only be operated by appropriately trained personnel! The...

  • Page 40: Sewing With A Double Cycle

    Sewing Sewing with a double cycle Push switch 4 on the quick control panel down ( see chapter 8.05 Functions of the Quick control panel ). Insert the workpiece. Bring the foot pedal into its + 1 position which lowers the work clamp. Move the foot pedal into position + 2.

  • Page 41: Care And Maintenance

    Care and maintenance Care and maintenance Cleaning ........................daily Check oil level ..................daily before use Fill oil ......................as required Check oil level for hook lubrication ..............weekly Fill oil for hook lubrication................as required Check air pressure ................daily before use Cleaning Switch the machine off! Open the cover 1.

  • Page 42: Lubricating

    Only use oil with a mean viscosity of 22.0 mm /s at 40°C and a density of 0.865 g/cm Fig. 13 - 03 15°C! We recommend PFAFF sewing machine oil Part No. 280-1-120 144. 13 - 2...

  • Page 43: Lubricating The Hook

    Only use oil with a mean viscosity of 10.3 mm /s at 40°C Fig. 13 - 05 and a density of 0.847 g/cm 15°C! We recommend PFAFF sewing machine oil Part No. 280-1-120 105. 13 - 3...

  • Page 44: Checking The Air Pressure

    Care and maintenance Checking the air pressure Check the air pressure on the manome- ter 1 before every use of the machine. The manometer 1 should display a pressure of approx. 6 bar . If necessary, adjust to this value. To do this, lift button 2 and twist it until a value of approx.

  • Page 45: Adjustment

    Covers on the machine which have to be removed and replaced for checks and adjustment work are not mentioned. The PFAFF 3117 is set up for Singer needles at the factory. When using needles from other manufacturers the hook settings are to be checked.

  • Page 46: Machine Positions And Needle Bar Positions

    Adjustment Machine positions and needle bar positions When the machine is switched off, the machine positions can be attained by turning the handwheel 1, by turning the shaft 2 or by turning the drive pulley 3. The needle bar positions can be attained by turning the drive pulley 3. At the end of a program the marking 4 on the control cam must be aligned with the marking 5 on the housing.

  • Page 47: Engaging/Disengaging The Stop Motion Device

    Adjustment Engaging/disengaging the stop motion device Requirement Before turning the drive pulley, the stop motion device must be engaged! By engaging the stop motion device, collisions between the needle and the needle thread scissor are avoided. Fig. 14 - 02 Push the switching lever 1 down to engage the stop motion device.

  • Page 48: Toothed Belt Drives

    Adjustment Toothed belt drives Requirement The toothed belts 1 and 2 should be tight enough to guarantee a perfect transmission of power. There should be virtually no noticeable play between the toothed belts and the toothed belt cogs. Fig. 14 - 03 Loosen nut 3 and bring the tightening roller 4 to a resting position by turning the lever 5 on the toothed belt 1.

  • Page 49: Basic Position Of The Milled Screws On The Feed Regulator

    Adjustment Basic position of the milled screws on the feed regulator Requirement The milled screws 1 to 4 should be set at the following measurements: Milled screw 1 ( bartack width ) = 11.5 mm Milled screw 2 ( buttonhole seam width ) = 12.5 mm Milled screw 3 ( buttonhole seam position right ) = 13.0 mm Milled screw 4 ( buttonhole seam position left ) = 11.5 mm 11.5 mm...

  • Page 50: Needle Bar And Needle

    Adjustment Needle bar and needle Pre-adjusting the needle bar height .06.01 Requirement With the needle bar at its BDC, there should be a clearance of 11.5 mm between the bottom edge of the needle bar 1 and the needle plate. Fig.
  • Page 51 Adjustment Needle bar in its program end position .06.02 Requirement At its program end position the needle should carry out a minimal zigzag movement. Fig. 14 - 06 Engage the stop motion device. Bring the machine into program end position. Lift the work clamp and place a piece of paper underneath it.

  • Page 52: Needle Bar Pendulum

    Adjustment Needle bar pendulum .06.03 Requirement The guide piece 1 should be touching the needle bar pendulum 2 on axis, without play. Fig. 14 - 07 Loosen the grub screws on the handwheel and remove the handwheel. Loosen the screw 3 that can now be seen, so that the needle bar pendulum 2 can be moved.

  • Page 53: Needle Plate To Needle

    Adjustment Needle plate to needle .06.04 Requirement The needle 1 should should be positioned in the middle of the needle hole 2. Fig. 14 - 08 Insert the needle 1. See chapter 11.01 Inserting the needle. Loosen screws 3 and move the needle plate carrier 4 in accordance with the require- ment.

  • Page 54: Basic Position Of The Needle Bar

    Adjustment Basic position of the needle bar .06.05 Requirement In the program end position and with the needle bar at its BDC, the needle 1 should be positioned at the left edge of the knife actuating hole 2. Carry out this adjustment with a needle plate with a knife actuating hole mounted.

  • Page 55: Lateral Movement Of The Needle

    Adjustment Lateral movement of the needle .06.06 Requirement The lateral movement of the needle should be finished above the needle plate. Fig. 14 - 10 Engage the stop motion device Bring the machine into the initial bartack position ( rear bartack ). Remove one feed gear.

  • Page 56: Seam Construction

    Adjustment Seam construction Left buttonhole seam .07.01 Requirement 1. The needle should be positioned at the right perforation of the left buttonhole seam at the left edge of the knife actuating hole. 2. The left perforation must be within the needle hole. Carry out this adjustment with a needle plate with a knife actuating hole mounted.
  • Page 57 Adjustment Right buttonhole seam .07.02 Requirement The needle should be positioned at the left perforation of the right buttonhole seam at the right edge of the knife actuating hole. Carry out this adjustment with a needle plate with a knife actuating hole mounted.

  • Page 58: Bartack

    Adjustment Bartack .07.03 Requirement 1. The bartack width must be the same as the width of both buttonhole seams together. 2. The first bartack must only be at its full width when the buttonhole seam displacement is complete. Within the range of the first bartack, the movement of the needle must not pass over the left edge of the buttonhole seam.

  • Page 59: Description Of Seam Construction

    Adjustment Description of the seam construction .07.04 Bartack width Reinforcing stitch Zero line when sewing the right buttonhole seam Bartack stitches (first or rear bartack) Cutting space width Buttonhole seam width Buttonhole seam stitches Bartack stitches (end or front bartack) Zero line when sewing the left buttonhole seam Reinforcing stitches...

  • Page 60: Faults In The Seam Construction

    Adjustment Faults in the seam construction .07.05 Faults in the seam construction occur due to a false adjustment of the milled screws 1 to 4. These must be adjusted as required. See also chapter 11.10 to chapter 11.13. Fig. 14 - 15 False! The right buttonhole seam is correct but the left buttonhole seam is positioned too far to the left.

  • Page 61: Stop Motion Buffer

    Adjustment Stop motion buffer Requirement 1. With the machine switched off there must be a clearance of 120.5 mm between the middle of the hole in the switching lever and the housing. 2. With the machine stopped levers 1 and 2 should be upright ( pre-adjustment ). 120.5 mm Fig.

  • Page 62: Adjusting The Catches

    Adjustment Adjusting the catches Requirement 1. Catch 1 must be centered in the elongated hole. 2. The needle thread knife must travel 4.5 mm when stopping mechanism is being engaged or disengaged. Measure- Measure- ment A ment B Fig. 14 - 17 Bring the machine to its program end position.

  • Page 63: Sensing Lever And Catch Lever

    Adjustment Sensing lever and catch lever Requirement 1. With the machine in its left buttonhole seam position, there must be a clearance of 0.3 mm between the projection of the sensing lever 1 and the control cam. 2. When the sensing lever 1 is at the highest point of trip 2 there must be a clearance of 0.5 mm between the catches 3 and 4.

  • Page 64: Work Clamp

    Adjustment Work clamp Basic position of the work clamp .11.01 Requirement When the clamp piece 1 is flush with the marking 2 there must be a clearance of 120 mm between the clamp pieces 1 and 3. 120 mm Fig. 14 - 19 Loosen screw 4.
  • Page 65 Adjustment Lengthwise positioning and parallelism of the work clamp .11.02 Requirement 1. In the program end position there must be a clearance of 5 mm between the work clamp and the middle of the needle hole. 2. The lateral distance between the work clamp and the needle hole must be the same along the entire length of the work clamp.

  • Page 66: Knife Unit

    Adjustment Knife unit The thread tension plate can be dismounted before making any adjustments to the knife unit so that the parts of the unit are more accessible. Cutting pressure .12.01 Requirement The pressure on the knife must be as low as possible while still guaranteeing a perfect cut.

  • Page 67: Upper Knife-Arm-Stop

    Adjustment Upper knife-arm-stop .12.02 Requirement 1. Taking care to ensure that the carrier plate 1 is pushed as far forward as possible in its elongated holes there must be a clearance of 0.2 mm to 0.3 mm between finger 2 of the needle thread monitor and pin 3 of the knife latch.

  • Page 68: Lower Stop Motion Buffer

    Adjustment Lower stop motion buffer .12.03 Requirement With the knife at its BDC the knife arm 1 should be touching the lower stop motion buffer 2 . Fig. 14 - 23 Engage the stop motion device. Turn the drive pulley in its direction of rotation until the actuator projection is in its BDC. Hold the thread monitor finger forwards.

  • Page 69: Stop Axle

    Adjustment Stop axle .12.04 Requirement 1. The torsion spring 1 must properly close the jaw of the stop axle. 2. The jaw of the stop axle must be opened to such an extent that the engaging lever 2 can engage properly. Fig.
  • Page 70 Adjustment Release the pressure from the knife pawl from time to time while carrying out the following adjustments by pulling pin 9 in direction of arrow. Bring thread monitor wire 10 to its front position and secure it. Loosen nut 11 and turn screw 12 so that recess 13 is centered with respect to the engaging lever 2.
  • Page 71 Adjustment 2 13 Abb. 14 - 25 14 - 27...

  • Page 72: Locking Lever

    Adjustment Locking lever .12.05 Requirement 1. With the knife latch fallen and the actuator projection at its TDC there must be a clearance of 1.0 mm between rod 1 of the knife latch and the locking lever 2. 2. In this position there must be a clearance of 0.5 mm between finger 3 and rod 1 of the knife latch.

  • Page 73: Knife Bar Height

    Adjustment Knife bar height .12.06 Requirement The height of the knife bar 1 must be adjusted with the aid of the knife adjustment gauge 2. Carry out this adjustment with a needle plate with a knife actuating hole mounted. Fig. 14 - 27 Bring the machine to its program end position.

  • Page 74: Position Of The Knife Carrier Relative To The Cutting Slot

    Adjustment Position of the knife carrier relative to the cutting slot .12.07 Requirement 1. The knife 1 must be parallel to the cutting slot 2. 2. The knife 1 must be in the middle of the cutting slot 2. Carry out this adjustment with a needle plate with a knife actuating hole mounted.
  • Page 75 Adjustment Lengthwise positioning of the knife carrier .12.08 Requirement There must be a clearance of 0.2 to 0.5 mm between the knife 1 and the needle bar 2. 0.2-0.5 mm Fig. 14 - 29 Loosen screws 3 and move the knife carrier 4 in accordance with the requirement. Tighten screws 3.

  • Page 76: Height With The Buttonhole Cutter

    Adjustment Height with the buttonhole cutter 12.09 Requirement At the BDC of the buttonhole cutter the bottom edge of the front of the knife 1 must be 0.5 mm under the needle plate 2. Fig. 14 - 30 Bring the buttonhole cutter to its BDC. Loosen screw 3 and move knife 4 in accordance with the requirement.

  • Page 77: Height With The Buttonhole Punch

    Adjustment Height with the buttonhole punch .12.10 Requirement The blade of the knife 1 must be 23 mm above the plastic insert 2. Fig. 14 - 31 Loosen screw 3. Place the gauge, Part no. 61-111 635-86, between the knife 1 and the plastic insert 2. Tighten screw 3 .

  • Page 78: Securing The Knife

    Adjustment Securing the knife .12.11 Requirement With the stop motion device disengaged, the locking lever 1 must be touching the pin 2 of the knife latch. 2 mm Fig. 14 - 32 Bring the machine to its program end position. Disengage the stop motion device.

  • Page 79: Stopping The Knife On The Double Cycle

    Adjustment Stopping the knife on the double cycle .12.12 Requirement With the engaging cylinder retracted the locking lever 1 must be touching the pin 2 of the knife latch. 2 mm 0.3 to 0.5 mm Fig. 14 - 33 Bring the machine to its program end position and disengage the stop motion device. Loosen nut 3 and wind screw 4 back completely.

  • Page 80: Engaging Lever

    Adjustment Engaging lever Requirement With the engaging cylinder retracted there must be a clearance between the catches 1 and 2 of 0.5 mm. 0.5 mm Fig. 14 - 34 Disengage the stop motion device. Press the engaging lever 3 down manually. Loosen nut 4 and wind screw 5 in accordance with the requirement.

  • Page 81: Needle Thread Tension

    Adjustment Needle thread tension Requirement 1. The tension 1 must remain open for approx. 3 stitches when starting sewing. Before beginning the first bartack the tension 1 must also be open for 3 stitches. 2. The tension 2 must be open for a minimal movement of the lever 3. 1.0 mm Fig.
  • Page 82 Adjustment Fig. 14 - 36 Loosen screw 12 and move the tension disengaging trips 13 and 14 in accordance with requirement 1. Tighten screws 12. Loosen screws 15 and move the disengaging rod assembly 16 in accordance with requirement 2. Tighten screw 15.

  • Page 83: Bobbin Thread Trimmer

    Adjustment Bobbin thread trimmer Requirement When in resting position, thread puller 1 of the bobbin thread trimmer must be parallel to the needle plate insert. Fig. 14 - 37 Loosen screws 2. Move knife 3 and thread puller 1 in according with the requirement. Tighten screws 2.

  • Page 84: Bobbin Thread Trimmer Drive Linkage

    Adjustment Bobbin thread trimmer drive linkage Requirement 1. Roller 1 must not be in contact with end 2 of the cam. 2. In basic position knife guide 3 must be parallel to needle hole 4. Fig. 14 - 38 Loosen nut 5 and turn screw 6 back a few turns. Set screw 6 against lever 7 and turn screw 6 another 1/4 of a turn.

  • Page 85: Positioner

    Adjustment Positioner Requirement The thread lever must be positioned at 1.2 mm before the TDC. Fig. 14 - 39 Turn the machine approx. 15 mm out of the basic position by turning the handwheel. Turn the machine off / on. The motor runs into a desired position.

  • Page 86: Presser Roller And Presser Bar Lifter With Work Clamp

    Adjustment Presser roller and presser bar lifter with work clamp Requirement 1. With the presser roller 1 in the prismatic guide 2 of the work clamp, the work clamp cut out must be in the middle of the seam construction and parallel to the needle plate insert.

  • Page 87: Feed Lifting Cylinder

    Adjustment Feed lifting cylinder Requirement 1. With the feed lifting cylinder 1 extended there must be a clearance of 0.5 mm between the presser roller and the pressing surface of the lever 6. 2. With the feed lifting cylinder 1 retracted ( see fig. 14.42 ), the lever 2 of the work clamp must be able to be lifted a little more.
  • Page 88 Adjustment Fig. 14 - 42 Loosen screws 5 and move the feed lifting cylinder 1 in accordance with requirement 2. Tighten screws 5. Switch the machine on. The feed lifting cylinder 1 retracts. Remove sewing pressure completely. See chapter 11.09 Adjusting the sewing pres- sure.

  • Page 89: Needle Thread Scissor

    Adjustment Needle thread scissor Function check .20.01 Requirement 1. With a thread inserted, the needle thread scissor 1 must cut the thread neatly. 2. After the cutting action one thread end must remain clamped in the scissor so that it is possible to lift the needle thread scissor 1 by holding the thread end.
  • Page 90 Adjustment Height and lengthwise positioning .20.02 Requirement 1. The needle thread scissor must be positioned as low as possible. However, it must in no position be in contact with the work clamp. The clearance between the needle thread scissor and the work clamp must be 0.5 mm. 2.

  • Page 91: Trip Guide

    Adjustment Trip guide .20.03 Requirement Trip guide 1 for the opening and control of the needle thread scissor must be adjusted so that the thread end is perfectly stitched over by the left-hand buttonhole seam. Fig. 14 - 45 Machine must be in program end position. Engage the stop motion device.

  • Page 92: Stop Piece

    Adjustment Stop piece .20.04 Requirement During the entire sewing action the needle thread scissor must keep clear of the sewing area. Fig. 14 - 46 The machine must be in program end position. Engage the stop motion device. Turn the handwheel until needle thread scissor frame 1 is at the highest point of trip guide 2.

  • Page 93: Triggering The Needle Thread Scissors

    Adjustment Triggering the needle thread scissor .20.05 Requirement The needle thread scissor must not cut the thread before tension 2 has opened (cf. section 14.14 Needle thread tension). Fig. 14 - 47 Loosen grub screw 1. Turn the eccentric 2 until there is a clearance of 1.5 mm between the lifting piece 3 and the roller 4.

  • Page 94: Backwards Motion Of The Needle Thread Scissors

    Adjustment Backwards motion of the needle thread scissor .20.06 Requirement 1. When the work clamp is lifted, the needle thread scissor must not touch the needle. 2. Before the needle thread scissor moves back to its initial position, it must catch the thread securely.

  • Page 95: Hook And Needle Bar

    Adjustment Hook and needle bar Needle bar rise and clearance .21.01 Requirement 1. At the right perforation on the left buttonhole seam the needle bar rise must be 2.4 mm. The hook point 1 must be pointing directly at the middle of the needle 2. 2.

  • Page 96: Needle Bar Height And Needle Guard

    Adjustment Needle bar height and need guard .21.02 Requirement 1. At the right perforation on the right buttonhole seam there must be a clearance of 0.5 mm between the top of the needle eye 1 and the hook point 2 at the end of the needle rise.

  • Page 97: Hook Lubrication

    Adjustment Hook lubrication .21.03 Requirement 1. The hook must be adequately lubricated. 2. With the hook clearance adjusted correctly, the felt ring must lightly touch the spring mounted metal disc. Fig. 14 - 51 Check that there is sufficient oil in the reservoir 3. See chapter 13.02.02 Lubricating the hook.

  • Page 98: Bobbin Case Holder

    Adjustment Bobbin case holder Requirement The bobbin case holder 1 should be mounted in the direction of the arrow. Fig. 14 - 52 Loosen screws 2. Move the bobbin case holder 1 in the direction of the arrow. In this position, tighten screws 2. 14 - 54...

  • Page 99: Needle Thread Monitor

    Adjustment Needle thread monitor Requirement 1. The clearance between the thread monitor finger 1 and the thread guide eye 2 must be 1.0 mm. 2. The thread monitor finger 1 must be held only by the needle thread. 3. In the case of the needle thread breaking, the thread monitor finger 1 must move far enough to the right so that the point of the finger 3 is approx.

  • Page 100: Thread Tension And Thread Control

    Adjustment Lateral thread tension and thread control Requirement 1. The thread check spring 1 must be flush with the top edge of the jockey finger 2. 2. The thread control 3 must be mounted in the elongated hole so that the thread check spring 1 moves approx.

  • Page 101: Needle Thread Puller

    Adjustment Needle thread puller Requirement The needle thread puller 1 must pull enough thread so that the needle thread is not pulled out of the needle thread scissor at the first stitch. The excess thread must be used by the first stitch.

  • Page 102: Knife Triggering Time

    Adjustment Knife triggering time Requirement The movement of the knife must be triggered after the first stitch of the final bartack. Fig. 14 - 56 Bring the machine into a position just before the beginning of the final bartack stitches. Engage the stop motion device.

  • Page 103: Reducing Speed

    Adjustment Reducing speed Requirement 1. With the sensing lever touching the reduction lug 2 the switch S20 must be pressed securely. 2. The speed must be reduced approx. five stitches before the triggering of the knife movement. Fig. 14 - 57 Bring the machine into the right buttonhole seam position.

  • Page 104: Switch Off Time

    Adjustment Switch off time Requirement The reinforcing stitches ( zero stitches ) must lie with one half on the seam end and one half on the seam beginning. Fig. 14 - 58 Bring the machine to the start of the end bartack stitches. Engage the stop motion device.

  • Page 105: Bobbin Winder

    Adjustment Bobbin winder Requirement 1. When switching the machine on, the bobbin winder shaft 1 must be driven securely by the drive pulley 2. When the machine is off there must be a clearance of 1 mm between the drive wheel 2 and the drive pulley 3. 2.

  • Page 106: Lubricating The Feed Regulator Eccentric

    Adjustment Lubricating the feed regulator eccentric Requirement The felt strip 1 must be lightly touching at the highest point of the feed regulator eccentric 2. Fig. 14 - 60 Loosen screws 3. Move the carrier 4 in accordance with the requirement. Tighten screws 3.

  • Page 107: Electrical Switch

    Adjustment Electrical switches All switches must be adjusted so that there is a little play between the switching rollers and the switch housing when pressed. Switch for the starting mechanism ( S2 ) .31.01 Requirement Switch 1 must be securely on as soon as the starting cylinder begins to pull. In program end position switch 1 must be free.

  • Page 108: Switch For The Work Clamp (S3)

    Adjustment Switch for the work clamp ( S3 ) .31.02 Requirement With the work clamp lowered, switch 1 must be securely on. Fig. 14 - 62 Loosen screws 2 and move switch 1 in accordance with the requirement. Tighten screws 2. 14 - 64...

  • Page 109: Switch For Machine Stop (S5)

    Adjustment Switch for machine stop ( S5 ) .31.03 Requirement The switch1 must be securely on as soon as the button is pressed. Fig. 14 - 63 Loosen screws 2 land move switch 1 in accordance with the requirement. Tighten screws 2. 14 - 65...

  • Page 110: Switch For Monitoring Control Cam (S8)

    Adjustment Switch for monitoring control cam ( S8 ) .31.04 Requirement In the program end position, switch 1 must be securely on. After approx. 10 mm of the path of the work clamp, the switch 1 must be free. Fig. 14 - 64 Loosen screws 2 land move switch 1 in accordance with the requirement.

  • Page 111: Switch For Monitoring Knife (S21)

    Adjustment Switch for monitoring knife ( S21 ) .31.05 Requirement In start position of the knife bar, switch 1 must be securely on. Fig. 14 - 65 Loosen screws 2 and move switch 1 in accordance with the requirement. Tighten screws 2. 14 - 67...

  • Page 112: Needle Bar Stroke

    Adjustment Needle bar stroke Requirement A needle bar stroke of either 34.5 mm ( standard ) or 38 mm can be set. The needle bar stroke and the cover thread carrier setting must coincide with eachother. 34.5 mm stroke 38 mm stroke Fig.
  • Page 113 Notes...
  • Page 114 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. Stampato in R.F.G. e a a...

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