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Summary of Contents for Pfaff 3827-2
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Page 1: Instruction Manual
3827 -2/24 Instruction manual This instruction manual applies to machines from the following serial numbers onwards: # 1484416 296-12-18 413/002 Betriebsanleitung engl. 12.94... - Page 2 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. G.M. PFAFF KAISERSLAUTERN I N D U ST R I E M A S C H I N E N...
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Page 3: Table Of Contents
Contents Contents ..................Chapter - Page Safety ......................1 - 1 Directives ....................1 - 1 General notes on safety ................1 - 1 Safety symbols................... 1 - 2 Important points for the user ..............1 - 3 Operating and specialist personnel ............1 - 3 Operating personnel ................... -
Page 4: Contents
Contents Contents ..................Chapter - Page Programming and sewing ..............12 - 1 Semi-automatic operation ................ 12 - 1 Automatic operation ................. 12 - 3 Care and maintenance ................13 - 1 Cleaning ....................13 - 1 Lubricating ....................13 - 1 Checking the air pressure ................ -
Page 5: Safety
Safety Safety 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 6: 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 authorised persons operate and work on the machine. Further information can be obtained at your PFAFF agent. 1 - 2... -
Page 7: Operating And Specialist Personnel
Safety 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 8: Danger
Safety Danger A working area of 1 metre 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 9: Proper Use
Proper use Proper use The PFAFF 3827 -2/24 is a sewing machine for the closing of side and shoulder seams on outerwear (e.g. suit jackets, skirt suits, overcoats). The shoulder seams, including bartacks and application of fullness are produced automatically as mirror images. On the side seams the fullness to be applied is switched on using a manual switch. -
Page 10: Specifications
Specifications Specifications Sewing machine head: ........PFAFF 487 - 706 / 81 - 900 / 99 BS x N3,5 Stitch type: ....................301 ( lockstitch ) Model: ..........................B Needle system: ......................134 KK Needle thickness (Nm): ..................80 - 100 Thread thickness (Nm): .............. -
Page 11: 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 3827 -2/24 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 12: 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 The PFAFF 3827 -2/24 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... -
Page 13: 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. Machines to be exported are packaged. Transport within the customer’s premises 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 14: 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 Operation, adjusting Programming, preparing, positioning Cleaning, care Lubrication, greasing Servicing, repairing,... -
Page 15: Operational Controls And Optical Displays
Operational controls and optical displays Operational controls and optical displays On/Off switch Turn the machine on and off by turning the On/Off switch 1 to „1“ for on and „0“ for off. Fig. 8 - 01 Functions of the pedal Machine stop The position of the presser foot and needle are dependent on the position... -
Page 16: Functions Of The Hand Buttons
Operational controls and optical displays Functions of the hand buttons Hand button 1 Reset; return to semi- automatic operation. Hand button 2 Turn fullness on and off. Hand button 3 Intermediate bartack. The machine sews backwards as long as this button is pressed. Fig. - Page 17 Operational controls and optical displays Messages in the display a = counter value of stitch counter Z1 b = current seam segment: Seam segment 0 for semi-automatic operation, seam segments 1- 6 for automatic operation: 0 = seam segment 0 1 = seam segment 1 of the 1st shoulder seam 2 = seam segment 2 of the 1st...
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Page 18: Mounting And Initial Operation
Mounting and initial operation Mounting and initial operation This machine may only be mounted and put into operation by qualified specialists! All relevant safety regulations are not to be adhered to! Mounting Connections for electrical and compressed air supplies must be available at the machine’s location (see chapter 3 Specifications). -
Page 19: Switching The Machine On/Off
Switching the machine on/off Switching the machine on/off On/Off switch Turn the machine on and off by turning the on/off switch 1 to „1“ for on and „0“ for off. Fig. 8 - 01 10 - 1... -
Page 20: Preparation
Preparation Preparation Inserting the needle Turn the machine off! Bring the needle bar into its highest position. Loosen the needle retaining screw 1. Insert the needle 2 as far as possible. The long needle-groove must be facing left when looking in the direction of sewing. -
Page 21: Threading The Bobbin Case, Adjusting The Thread Tension
Preparation Threading the bobbin case, adjusting the thread tension Turn the machine off! Insert the bobbin into the bobbin case. Thread the bobbin case in accordance with Fig. 11-03. Adjust the thread tension by turning screw 1. Use the enclosed tool for this process. Fig. -
Page 22: Threading The Needle Thread, Adjusting The Thread Tension
Preparation Threading the needle thread, adjusting the thread tension Thread the needle thread in accordance with Fig. 11- 05. Adjust the needle thread tension by turning the milled screw 1. The needle is to be threaded from left to right! Do not operate the machine without the take-up-lever guard 2! Danger of injury... -
Page 23: Adjusting The Edge Stop
Preparation Adjusting the edge stop Fig. 11 - 07 Move the edge stop 1 by turning the milled nut 2. To sew without an edge stop 1, swing the lever 3 away. 11 - 4... -
Page 24: Programming And Sewing
Programming and sewing Programming and sewing With this machine the fullness is applied to the top layer of material. Therefore, take care to ensure that the workpiece is appropriately inserted. Semi-automatic operation Fig. 8 - 05 Programming and sewing To select semi-automatic sewing, switch 6 must be down. During semi-automatic operation switches 4, 5, 7 and 8 should be up (see Fig. - Page 25 Programming and sewing Function summary 1st and 2nd shoulder seams Start bartack Seam with fullness Automatic Seam segments end bartack and Seam segments thread trimmer Activate knee lever End bartack and Start bartack thread trimming (pedal -2) Seam segment 0 2nd side seam 1st side seam with fullness if desired...
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Page 26: Automatic Operation
Programming and sewing Automatic operation Function summary In automatic operation, only shoulder seams can be sewn one after another. See chapter 12.01 Semi-automatic operation for further function summary. Programming and sewing To select automatic operation, switch 6 (see Fig. 8 - 05) must be up. For further programming see chapter 12.01 Semi-automatic operation. -
Page 27: Care And Maintenance
10.0 mm /s at 40°C and a density of 0.847 g/ at 15°C. We recommend PFAFF sewing machine oil. Part no. 280-1-120 105. Lay the machine head on its back. Fill the oil reservoir 2 up to the upper marking 3 through the hole 1. -
Page 28: Checking The Air Pressure
Care and maintenance The top feed joints are to be given one drop of oil each, once a week. (see Fig. 13 - 02 - arrows) Fig. 13 - 01 Checking the air pressure Check the air pressure at the manometer before every use of the machine. -
Page 29: Adjustment
Adjustment Adjustment On the PFAFF 487 - 706/.. no c-clamps may be attached to the needle bar as this would damage the special coating on the needle bar. All adjustments in these adjustment instructions are based on a completely installed machine. Covers on the machine which have to be removed and replaced for checks and adjustment work are not mentioned. -
Page 30: Check And Adjustment Aid
Adjustment Check and adjustment aid By placing pegs in holes 1 and 3 - 6 the required needle bar positions can be exactly fixed. Fig. 14 - 01 Turn the handwheel until the needle bar has approximately reached the required position. Place the 5 mm rig pin in the appropriate hole and put pressure on it. -
Page 31: Pre-Adjusting The Needle Height
Adjustment Pre-adjusting the needle height Requirement With the needle bar at its BDC there must be a clearance of approx. 16.5 mm between the bottom edge of the needle bar and the needle plate. Fig. 14 - 02 Move the needle bar 1 (screws 2) in accordance with the requirement while taking care to ensure that the needle retaining screw 3 is pointed to the left viewed in the direction of feed. -
Page 32: Centering The Needle In The Needle Hole
Adjustment Centering the needle in the needle hole Requirement The needle must enter exactly the middle of the needle hole. Fig. 14 - 03 Bring the needle into a position directly over the needle hole. Loosen screws 1, 2 and 3. Move the needle bar frame 4 into a position according with the requirement in both the sewing direction and across the sewing direction. -
Page 33: Zeroing The Bottom Feed Dog
Adjustment Zeroing the bottom feed dog Requirement With the stitch length set at 0 the bottom feed dog should not move laterally when the handwheel is turned. Adjustment with the gearbox housing closed .06.01 45° Fig. 14 - 04 Raise the presser foot. Turn bush 2 (screw 3) so that the marking 4 is pointing downwards and the edge of the notched surface is at a 45°... -
Page 34: Adjustment With Gearbox Housing Open
Adjustment Adjustment with the gearbox housing open .06.02 45° Fig. 14 - 05 Raise the presser foot. Turn bush 2 (screw 3) so that the marking 4 is pointing downwards and the edge of the notched surface is at a 45° angle to the front of the machine. For the final adjustment see chapter 14.18 Synchronizing the vibrating presser. -
Page 35: Driving Motion Of The Bottom Feed Dog
Adjustment Driving motion of the bottom feed dog Requirement With the largest stitch length set and the needle bar 0.6 mm after the TDC (hole 1) the bottom feed dog must not move when the crank 3 is turned in the direction of the arrow. Fig. -
Page 36: Lifting Motion Of The Bottom Feed Dog
Adjustment Lifting motion of the bottom feed dog Requirement With the stitch length set at 0 and the needle bar at 0.6 mm after the TDC (hole 1) the bottom feed dog must be at its TDC. The notch in the feed lifting eccentric 1 must be approx. vertically underneath the middle of the axle. -
Page 37: Height Of The Bottom Feed Dog
Adjustment Height of the bottom feed dog Requirement With the stitch length set at „0“ and the needle bar 0.6 mm after its TDC (hole 1) the feed dog must: 1. be centered in the needle plate cutout, when viewed from the side and from the direction of feed. -
Page 38: Clearance Between Presser Foot And Needle Plate
Adjustment Clearance between presser foot and needle plate Requirement With the presser bar lifter 1 raised there must be a distance of 5 mm between the presser foot and the needle plate. Fig.14 - 09 Screw on the gauge foot 13. Allow the gauge foot to rest on the needle plate using the presser bar lifter 1. - Page 39 Adjustment Raise the presser bar 8 and place the 5 mm adjustment gauge underneath the gauge foot. Loosen screw 9 and press the pin out 10. Loosen screw 11. Position the gauge foot so that its edge is parallel to the needle plate cutout. Lower the lifting piece 12 until it comes to rest and tighten screw 11.
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Page 40: Adjusting The Floating Foot
Adjustment Adjusting the floating foot Requirement 1. With the gauge foot 1 resting on the needle plate, screw 2 must be resting on the stop. 2. With the floating foot 4 resting on the needle plate 5 and the bottom feed dog underneath the top edge of the needle plate there must be a distance of 0.5 mm between stop 6 and guide 7. -
Page 41: Top Feed Driving And Connecting Levers
Adjustment Top feed driving and connecting levers Requirement All moving parts of the top feed system must move freely and without play. Fig. 14 - 11 Lower the sewing foot using the presser bar lifter 1. Loosen screw 2. Swing the connecting joint 3 into the fork of lever 4 and insert pin 5. Ensure that the parts move freely. -
Page 42: Zeroing The Top Feed Motion
Adjustment Zeroing the top feed motion Requirement With the stitch length and the top feed set at 0 and with the alignment gauge 8 attached there should be no movement of the feed driving lever 18 when the handwheel is turned. Fig. - Page 43 Adjustment Fig. 14 - 13 Raise the presser foot. Loosen screws 1 and 2. Place crank 3 parallel to crank 4 and tighten screw 2. Set the stitch length controls 5, 6 and 7 at 0. Place the alignment gauge 8 onto the pins 9. Turn the handwheel and turn crank 11 (screw 10) so that the vibrating presser foot does not move.
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Page 44: Feeding Motion Of The Vibrating Presser
Adjustment Feeding motion of the vibrating presser Requirement With the machine set at its longest stitch length and the needle bar positioned 0.6 mm past its TDC (hole 1) the vibrating presser 3 must not move when crank 4 is moved up and down. -
Page 45: Vibrating Presser Lift
Adjustment Vibrating presser lift Requirement With the stitch length set at 0, the presser foot resting on the needle plate and the vibrating presser at its TDC, there must be the following clearance between the needle plate and the vibrating presser foot: 1.3 mm with the vibrating presser operating behind the needle. -
Page 46: Vibrating Presser Lifting Motion
Adjustment Vibrating presser lifting motion Requirement With the stitch length set at 2 and the ascending feed dog at the top edge of the needle plate, the vibrating presser must be touching the feed dog (see arrow). Fig. 14 - 16 Turn eccentric pin 1 (screw 2) in accordance with the requirement. -
Page 47: Position Of The Vibrating Presser
Adjustment Position of the vibrating presser Requirement With the bottom feed dog at its top point of reversal the vibrating presser must be parallel to the bottom feed dog. Fig. 14 - 17 Turn eccentric pin 1 (screw 2) in accordance with the requirement. 14 - 19... -
Page 48: Synchronizing The Vibrating Presser
Adjustment Synchronizing the vibrating presser Requirement With the stitch-length and vibrating-presser-stroke adjustment levers all at 3 the vibrating presser and the bottom feed dog must work with the same feed motion when the handwheel is turned. Fig. 14 - 18 Press the adjustment levers downwards. -
Page 49: Matching Forward And Reverse Stitch Lengths
Adjustment Matching forward and reverse stitch lengths Requirement With the stitch length set at „3“ the forward feed must match the reverse feed. Fig. 14 - 19 Turn bush 1 (screw 2) in accordance with the requirement. Make sure that the eccentricity of the bush 1 is facing downwards. 14 - 21... -
Page 50: Eccentric Hook Shaft Bearing
Adjustment Eccentric hook shaft bearing Requirement 1. The notch in bearing 3 (see arrow) must be visible from below. There must be a slight but still noticeable play between gears 5 and 7. 2. With the hook lightly touching the spin disc 4 and the hook point opposite the center line of the needle, there must be a clearance of less than 0.1 mm between the hook point and the clearance cut of the needle. - Page 51 Adjustment Needle rise, final adjustment of the needle bar height and bobbin case positioning finger Requirement With the needle bar at a position 1.8 mm past its BDC (hole 4): 1. the hook point must be opposite the center line of the needle, and the top edge of the needle eye must be 0.8 mm below the bottom edge of the sewing hook.
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Page 52: Height Of Bobbin Case Opener
Adjustment Height of the bobbin case opener Requirement At the left point of reversal of the bobbin case opener 3 the top edge of the bobbin case opener finger must be 0.5 mm above the bottom edge of the bobbin case cam 4. Fig. -
Page 53: Position Of Bobbin Case Opener
Adjustment Position of bobbin case opener Requirement With the bobbin case opener 3 at its left point of reversal: 1. the front edge of the bobbin case opener finger must be approx. 0.6 mm behind the front edge of the bobbin case cam 7. 2. -
Page 54: Motion Of Bobbin Case Opener
Adjustment Motion of bobbin case opener Requirement With the needle bar 1.8 mm past its BDC (hole 4) the bobbin case opener 3 must be at its right point of reversal. Fig. 14 - 24 Adjust the bobbin case opener eccentric 1 (screws 2) in accordance with the requirement. -
Page 55: Needle Thread Tension Release
Adjustment Needle thread tension release Requirement With the presser bar lifter 3 raised the tension discs must be at least 0.5 mm apart. 0.5 mm Fig. 14 - 25 Adjust the tension release lever 1 (screw 2) in accordance with the requirement. Lower the presser foot onto the needle plate. -
Page 56: Thread Check Spring And Thread Regulator
Adjustment Thread check spring and thread regulator Requirement 1. The thread check spring 3 must have finished its stroke by the time the point of the needle enters the material (stroke approx. 7 mm). 2. The thread regulator 4 must be fixed into the elongated hole so that the thread check spring 3 moves 1 mm by the time the hook has widened the thread loop to its maximum. -
Page 57: Bobbin Winder
Adjustment Bobbin winder Requirement With the bobbin winder engaged the winder spindle must be driven reliably. With the bobbin winder disengaged, however, the friction wheel 5 must not touch the drive wheel 1. The bobbin winder must wind evenly and stop automatically when the thread wound on the bobbin has reached a point approx. -
Page 58: Position Of Vibrating Presser In Relation To Presser Foot
Adjustment Position of vibrating presser in relation to presser foot Requirement With the presser foot raised by way of the lifting lever and the take up lever is at its top point of reversal, the teeth of the vibrating presser 3 must not be below the presser foot shoe 4. -
Page 59: Pressure On Vibrating Presser And Presser Foot
Adjustment Pressure on vibrating presser and presser foot Requirement The proper feeding of the material must be ensured even at top sewing speed. There must not be any pressure marks on the material. Fig. 14 - 29 Pressure on vibrating pressure - Set regulating screw 1 flush with the top surface of the machine housing. -
Page 60: Limiting The Stitch Length
Adjustment Limiting the stitch length Fig. 14 - 30 Loosen screw 1 (accessible through the assembly hole) or screw it out according to the limit to be set. Set the stitch length control lever 2 at the desired maximum stitch length. Set the limiting angle 3 from above so that it touches the control lever 2 and secure it (in the desired position) by tightening screw 1 in either the lower or upper hole. -
Page 61: Lateral Position Of Thread Catcher
Adjustment Lateral position of thread catcher Requirement The tip of the thread catcher 3 must be pointing at the center line of the needle; if required however, it can be up to 0.3 mm to the left of this center line. The thread catcher 3 must move without striking the bobbin case positioning finger 5. - Page 62 Adjustment Point of reversal of thread catcher Requirement With the compressed air switched off and the cylinder plunger fully extended by hand (front point of reversal of the catcher 4) the rear edge of the thread catcher cutout must be 1 to 1.4 mm beyond the front edge of the bobbin case positioning finger.
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Page 63: Knife
Adjustment Knife Requirement There must be a clearance of approx. 4 mm between the needle and the cutting edge of the knife 3. 4 mm Fig. 14 - 33 Disconnect the linkage rod 1 and bring the needle bar to its BDC. Position the catcher 5 directly in front of the needle and move the knife 3 (screw 2) in accordance with the requirement. -
Page 64: Needle Thread Tension Release
Adjustment Needle thread tension release Requirement With the thread catcher at its rear point of reversal, finger 3 must be engaged and there must be a clearance of 0.5 mm between the finger and the control cam 4. With the tip of the finger 3 at the highest point of cam 4 the tension discs must be at least 0.5 mm apart. -
Page 65: Synchronizer
Adjustment Synchronizer Requirement When stopping sewing, the machine must position itself at approx. 4 mm after the BDC of the needle bar. After trimming the thread the machine must position itself in the TDC of the take-up lever. When pressing the pedal backwards the plunger of the cylinder must extend when the needle bar is 20 - 22 mm after its BDC. - Page 66 G.M. PFAFF KAISERSLAUTERN I N D U ST R I E M AS C H I N E N 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...
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