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Pfaff 3827-2, Instruction Manual, Page: 48 / 66

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Pfaff 3827-2 Instruction Manual Download Page 48

Adjustment

14 - 20

14

.18

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.

●

Press the adjustment levers downwards.

●

Loosen nut 

1

.

●

Set the adjustment levers 

3

 at „

3

“.

●

Move the pull rod 

2

 in the elongated hole in accordance with the 

requirement

 and

tighten nut 

1

.

2

1

3

Fig. 14 - 18

Summary of Contents for 3827-2

Page 1: ...296 12 18 413 002 Betriebsanleitung engl 12 94 Instruction manual 3827 2 24 This instruction manual applies to machines from the following serial numbers onwards 1484416 ...

Page 2: ...e or in part is only permitted with our previous permission and with written reference to the source G M PFAFF KAISERSLAUTERN INDUSTRIEMASCHINEN AG Postfach 3020 D 67653 Kaiserslautern Königstr 154 D 67655 Kaiserslautern Editing Illustrations HAAS Publikationen GmbH D 53840 Troisdorf ...

Page 3: ... 1 6 04 Storage 6 1 7 Explanation of the symbols 7 1 8 Operational controls and optical displays 8 1 8 01 On Off switch 8 1 8 02 Functions of the pedal 8 1 8 03 Functions of the knee lever 8 1 8 04 Functions of the hand buttons 8 2 8 05 Functions of the quick control panel 8 2 9 Mounting and initial operation 9 1 9 01 Mounting 9 1 9 02 Initial operation 9 1 10 Switching the machine on off 10 1 11 ...

Page 4: ...nnecting levers 14 13 14 13 Zeroing the top feed motion 14 14 14 14 Feeding motion of the vibrating presser 14 16 14 15 Vibrating presser lift 14 17 14 16 Vibrating presser lifting motion 14 18 14 17 Position of the vibrating presser 14 19 14 18 Synchronizing the vibrating presser 14 20 14 19 Matching forward and reverse stitch lengths 14 21 14 20 Eccentric hook shaft bearing 14 22 14 21 Needle ri...

Page 5: ...ine unattended and during maintenance work the machine is to be separated from the power supply by switching off the On Off switch or by removing the plug from the mains Everyday maintenance work is only to be carried out by appropriately trained personnel Repairs and special maintenance work may only be carried out by qualified service staff or appropriately trained personnel When servicing or ca...

Page 6: ...sonnel is to be instructed as to the safety equipment of the machine and regarding safe work methods It is the duty of the user to only operate the machine in perfect running order 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 in...

Page 7: ...ne which may limit its safety 1 05 02 Specialist personnel 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...

Page 8: ...hine 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: ...ror images On the side seams the fullness to be applied is switched on using a manual switch Any and all uses of this machine which have not been approved of by the manufacturer are considered to be inappropriate The manufacturer cannot be held liable for any damage caused by the inappropriate use of the machine The appropriate use of the machine includes the observance of all operational adjustme...

Page 10: ...ax stitch length 4 5 mm Sewing motor QE 5542 P138SE Pb5 Maximum motor rpm 4000 Working noise level Emission at workplace at sewing speed of n 4000 spm LpA 79 dB A noise measurement in accordance with DIN 45 635 48 A 1 Dimensions of machine Length 1365 mm Width 950 mm Height 1700 mm incl spool holder Weight Net approx 108 kg Gross approx 230 kg Power supply 230 V 10 50 60 Hz 1 Phase Power supply fr...

Page 11: ...e 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 Special care is to be taken that parts covrered with lubricants are separately disposed of in accordance with the locally valid environmental protection regulations ...

Page 12: ...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 a Visual check b Check of the connection of the protective conductor Insulation check Voltage check Function check 5 1 ...

Page 13: ...mises Care is to be taken to transport the machine in an upright position 6 03 Disposal of the packaging The packaging of the machine consists of wood paper cardboard and VCE fibre The proper disposal of the packaging is the responsibility of the customer 6 04 Storage The machine can be stored for up to 6 months if not in use During this time it should be protected from dust and moisture For longe...

Page 14: ...nstruction 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 adjustment maintenance 7 1 ...

Page 15: ...n the quick control panel see chapter 8 05 Functions of the quick control panel 1 Depends on the position of switch 1 on the quick control panel Switch 1 up presser foot down Switch 1 down sew 2 Sew up to the max speed in 12 steps 1 Depends on the position of switch 1 on the quick control panel Switch 1 down presser foot up 2 End bartack and trim thread in seam segment 0 semi automatic operation 8...

Page 16: ...pressed 8 05 Functions of the quick control panel Switch functions Switch 1 presser foot up down with pedal at 0 Switch 2 presser foot up down at sewing stop Switch 3 needle up down with pedal at 0 Switch 4 single double start bartack Switch 5 single double end bartack Switch 6 automatic operation semi automatic operation Switch 7 start bartack on off Switch 8 end bartack on off Switch 9 thread wi...

Page 17: ...seam seam with fullness 3 seam segment 3 of the 1st shoulder seam 4 seam segment 4 of the 2nd shoulder seam 5 seam segment 5 of the 2nd shoulder seam seam with fullness 6 seam segment 6 of the 2nd shoulder seam c for fullness on d counter value of stitch counter Z2 Programming buttons on the quick control panel Button G positionwise switching to the stitch counters Z1 and Z2 the current position b...

Page 18: ...uate lighting must also be guaranteed 9 02 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 The manometer should display an air pressure level of 6 bar Adjust to this value ...

Page 19: ...Switching the machine on off 10 1 10 Switching the machine on off 10 01 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 1 ...

Page 20: ...roove must be facing left when looking in the direction of sewing Tighten the needle retaining screw 1 Attention Needle point and knife blade Danger of injury 11 02 Winding the bobbin thread adjusting the thread tension Set the bobbin winder into gear by pressing in the bobbin winder spindle 1 Papidly rotating bobbin Danger of Injury Regulate the thread tension by turning the milled screw 2 Fig 11...

Page 21: ... accordance with Fig 11 03 Adjust the thread tension by turning screw 1 Use the enclosed tool for this process 11 04 Inserting the bobbin case Turn the machine off Remove the bobbin case 1 with the bobbin Change the bobbin see chapter 11 03 Threading the bobbin case Insert the bobbin case 1 into the bobbin case carrier 2 11 2 Fig 11 03 1 5 cm _ Fig 11 04 1 2 ...

Page 22: ...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 through the up and down movement of the take up lever 11 06 Pre selecting the stitch length and fullnes To adjust the stitch length move stitch length controls 1 and 2 together Pre select fullness with adjustment lever 3 Fig 11 05 _ 6 cm 2 1 Fig 11 06 3 2 1 ...

Page 23: ...Preparation 11 07 Adjusting the edge stop 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 Fig 11 07 2 3 1 ...

Page 24: ...matic sewing switch 6 must be down During semi automatic operation switches 4 5 7 and 8 should be up see Fig 8 05 The positions of switches 1 2 3 and 9 can be chosen at your discretion Change to programming mode with button G and move to the position of the stitch counter which have to be altered with button F The current position blinks Alter the current position with buttons and Exit from progra...

Page 25: ...lay When fullness is being applied a is shown in the display and the fullness button is lit Insert the workpiece 2nd shoulder seam Close the 2nd shoulder seam The 2nd shoulder seam is sewn automatically as a mirror image of the 1st shoulder seam In the display the seam segments 4 to 6 are shown When fullness is being applied a is shown in the display and the fullness button is lit After completing...

Page 26: ...ation 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 12 3 ...

Page 27: ...both hands Danger of crushing between machine head and table top 13 02 Lubricating Turn the machine off Only use oil with a mean viscosity of 10 0 mm2 s at 40 C and a density of 0 847 g cm3 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 Return the machine to its upright posit...

Page 28: ...ir pressure at the manometer before every use of the machine The manometer 1 must show a pressure of approx 6 bar Adjust to this value if necessary To do so lift button 2 and turn it until the manometer shows approx 6 bar When the air pressure is turned off condensation drops out of valve 3 Place a suitable container under the valve Fig 13 01 Fig 13 02 3 2 1 ...

Page 29: ...aking the adjustment and tightened again when the adjustment is complete 14 01 Tools gauges and other accessories Screwdrivers with blade width from 2 to 10 mm Screwdrivers with blade width from 7 to 14 mm Allan keys from 1 5 to 6 mm Metal rule Part No 08 880 218 00 Rig pin 5 mm diameter Part No 13 030 341 05 Adjustment gauge Part No 61 111 642 19 Alignment gauge Part No 91 069 375 15 Gauge foot P...

Page 30: ...Turn the handwheel forwards and backwards a little until the rig pin moves into the slot in the crank behind the bearing plate thus blocking the machine Hole 1 0 6 mm after the top dead center of the needle bar 0 6 a TDC Hole 3 0 6 mm after the bottom dead center of the needle bar 0 6 a BDC Hole 4 1 8 mm after the bottom dead center of the needle bar needle rise Hole 5 Top dead center of the needl...

Page 31: ...e a clearance of approx 16 5 mm between the bottom edge of the needle bar and the needle plate 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 3 1 2 5 1 4 6 3 16 5 mm Fig 14 02 ...

Page 32: ... the needle bar frame 4 into a position according with the requirement in both the sewing direction and across the sewing direction Tighten screw 3 tightly and screw 2 just a little Using screw 1 pull the guide pin behind screw 1 towards the eye of the needle bar frame and tighten it Remove the needle Loosen screw 2 Turn the handwheel a few rotations to avoid any tension that may exist and tighten...

Page 33: ...he 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 Place a suitable pin or Allan key in hole 5 of the tensioning hoop 6 and hold the shaft 7 still with it Turn the shaft 7 screw 8 in accordance with the requirem...

Page 34: ...h 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 Turn the crank 5 screw 6 in accordance with the requirement 45 2 3 6 5 Fig 14 05 4 ...

Page 35: ...t 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 Turn the feed driving eccentric 1 screws 2 in accordance with the requirement while taking care that the notch in the feed driving eccentric is visible 3 2 1 Fig 14 06 ...

Page 36: ...he 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 Turn the feed lifting eccentric 1 screws 2 in accordance with the requirement while taking care to ensure that there is a little play between the feed lifting eccentric 1 and the connecting rod behind it 1 2 Fig 14 07 ...

Page 37: ...m the side and from the direction of feed 2 be at its upper point of reversal and touching the adjustment gauge along its entire length Move the feed dog carrier 1 screw 2 in accordance with requirement 1 Allow the presser foot to rest on the gauge Turn eccentric 3 screw 4 and eccentric 5 screw 6 in accordance with requirement 2 Take care that eccentrics 3 and 5 are not turned 180 1 16 x x 0 72 Fi...

Page 38: ...ge foot 13 Allow the gauge foot to rest on the needle plate using the presser bar lifter 1 Reduce the pressure on the presser bar by loosening the adjusting screw 2 milled nut 3 Loosen screw 4 and press pin 5 out Swing the connecting joint 6 out of the fork of lever 7 Bring the vibrating presser to its highest point by turning the handwheel and raise the gauge foot 7 4 5 9 10 6 7 13 8 6 2 3 12 11 ...

Page 39: ... 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 Do not mount pins 5 and 10 Leave screws 4 and 9 loosened for the following adjustment ...

Page 40: ...floating foot 4 and replace it with the gauge foot 1 Bring the gauge foot 1 to a resting position on the needle plate 5 using the presser bar lifter 3 Adjust screw 2 in accordance with requirement 1 Remove the gauge foot 1 and replace it with the floating foot 4 Bring the floating foot 4 to a resting position on the needle plate 5 using the presser bar lifter 3 Adjust screw 2 in accordance with re...

Page 41: ... the stitch length at 0 Center the vibrating presser foot in the presser foot cutout in the direction of sewing and tighten screw 2 Loosen screw 6 Align the hole in lever 7 with the hole in lever 8 If necessary move or adjust lever 7 Insert pin 9 with its largest eccentricity facing downwards into the holes of levers 7 and 8 and tighten screw 10 Press lever 7 as far as it will go in the direction ...

Page 42: ...ed 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 7 6 5 12 14 15 17 16 8 1 3 2 9 4 18 Fig 14 12 ...

Page 43: ...that the vibrating presser foot does not move Loosen nut 12 Move the pull rod 14 up and down several times while moving lever 15 screw 13 so that the vibrating presser foot does not move Bring the pull rod 14 to a position where it touches the top of the elongated hole and tighten nut 12 Set the stitch length controls 5 6 and 7 at 3 Set crank 16 lengthwise and crosswise against crank 17 and tighte...

Page 44: ...est 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 Raise the presser foot Turn the feed driving eccentric 1 screws 2 in accordance with the requirement Ensure that the notch see arrow is visible 2 1 4 3 Fig 14 14 ...

Page 45: ...le Increase the pressure on screw 1 nut 2 a little Lower the presser foot until it rests on the needle plate Move the eccentricity of pin 3 screw 4 towards the needle bar see arrow Turn the eccentricity of pin 5 screw 6 downwards Turn the handwheel until the connecting lever 7 is at its rear point of reversal Press the connecting lever 7 screw 8 to the rear and place the corresponding feeler gauge...

Page 46: ...otion 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 Turn eccentric pin 1 screw 2 in accordance with the requirement 2 1 Fig 14 16 ...

Page 47: ...n 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 Turn eccentric pin 1 screw 2 in accordance with the requirement 2 1 Fig 14 17 ...

Page 48: ...stment levers all at 3 the vibrating presser and the bottom feed dog must work with the same feed motion when the handwheel is turned Press the adjustment levers downwards Loosen nut 1 Set the adjustment levers 3 at 3 Move the pull rod 2 in the elongated hole in accordance with the requirement and tighten nut 1 2 1 3 Fig 14 18 ...

Page 49: ...reverse stitch lengths Requirement With the stitch length set at 3 the forward feed must match the reverse feed Turn bush 1 screw 2 in accordance with the requirement Make sure that the eccentricity of the bush 1 is facing downwards 1 2 Fig 14 19 ...

Page 50: ...e 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 3 Gear 5 must be flush with gear 7 Loosen screw 1 and both screws 2 Turn bearing 3 in accordance with requirement 1 Set the hook lightly against spin disc 4 and shift bearing 3 without turning it in accordance with requirement 2 Tighten screws 1 and 2 Position gear 5...

Page 51: ...le eye must be 0 8 mm below the bottom edge of the sewing hook 2 There must be a clearance of 0 5 mm between the lug of the positioning finger 3 and the inside edge of the positioning slot Adjust the hook screws 1 without shifting it and the needle bar screws 2 without twisting it in accordance with requirement 1 Set the lug of positioning finger 3 into the slot in the bobbin case carrier and adju...

Page 52: ...ent 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 Turn the bobbin case base 1 screw 2 in accordance with the requirement 1 2 3 4 0 5 mm Fig 14 22 ...

Page 53: ...ust be approx 0 3 mm from the positioning finger 8 and screw 1 must be touching stop pin 5 Loosen screw 1 and then loosen screw 2 so that the bobbin case opener 3 is still just held in position Adjust the bobbin case opener 3 in accordance with requirement 1 Turn the bobbin case opener 3 in accordance with requirement 2 and tighten screw 2 Set fixing collar 4 against the bobbin case opener 3 and s...

Page 54: ...in 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 Adjust the bobbin case opener eccentric 1 screws 2 in accordance with the requirement 2 3 1 Fig 14 24 ...

Page 55: ...With the presser bar lifter 3 raised the tension discs must be at least 0 5 mm apart Adjust the tension release lever 1 screw 2 in accordance with the requirement Lower the presser foot onto the needle plate Now the tension must be fully active 3 1 2 0 5 mm Fig 14 25 ...

Page 56: ... that the thread check spring 3 moves 1 mm by the time the hook has widened the thread loop to its maximum Turn the thread tension 1 screws 2 in accordance with requirement 1 Move the thread regulator 4 screws 5 in accordance with requirement 2 The stroke of the thread check spring 3 and the position of the thread regulator 4 are dependent on the type of thread and material used and should be adju...

Page 57: ...nd stop automatically when the thread wound on the bobbin has reached a point approx 1 mm below the bobbin rim Switch on the bobbin winder and adjust the drive wheel 1 screw 2 in accordance with the requirement Place a bobbin on the winder spindle thread the machine for bobbin winding and switch on the bobbin winder To adjust the amount of thread to be wound shift the regulating pin 3 screw 4 in a...

Page 58: ...uirement 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 Turn the eccentric bush 1 screw 2 in accordance with the requirement 2 1 3 4 Fig 14 28 ...

Page 59: ...the material Pressure on vibrating pressure Set regulating screw 1 flush with the top surface of the machine housing Pressure on presser foot Turn regulating screw 2 milled nut 3 until there is a clearance of approx 12 mm between the screw shoulder and the machine housing If necessary the pressure on the vibrating presser and the presser foot can be increased or decreased _ 1 2 3 _ 12 mm Fig 14 29...

Page 60: ... 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 3 1 2 Fig 14 30 ...

Page 61: ... catcher 3 must move without striking the bobbin case positioning finger 5 Disconnect linkage rod 1 Set the end of the cylinder plunger 2 flush with the face of nut 3 nut 4 Bring the needle bar to its BDC and position the tip of the catcher 7 in front of the needle by pushing the pull rod 6 upwards Position the catcher 7 screws 5 in accordance with the requirement making sure that the catcher 7 is...

Page 62: ...ar edge of the thread catcher cutout must be 1 to 1 4 mm beyond the front edge of the bobbin case positioning finger Bring the needle bar to its TDC and re connect the linkage rod 1 Bring the ball stud nut 2 to the middle of the elongated hole Extend the cylinder plunger fully by hand Turn the linkage rod 1 nuts 3 left and right hand thread in accordance with the requirement 1 3 2 4 1 1 4 mm Fig 1...

Page 63: ... hand edges of the knife 3 and the catcher 5 are flush see arrow Bring the needle bar to its TDC and push the catcher 5 fully forward Place two threads in the cutout of the catcher 5 and carry out a cutting test To correct position the catcher 5 screws 4 parallel to the cutting edge while making sure to observe the requirement described in chapter 14 31 Lateral position of the thread catcher Place...

Page 64: ...p of the finger 3 at the highest point of cam 4 the tension discs must be at least 0 5 mm apart Fully retract the cylinder plunger 5 by hand By turning screw 7 nut 6 create a clearance of 0 5 mm between the finger 3 and the control cam 4 Lower the presser foot onto the needle plate using the presser bar lifter Pull the pull rod 2 screw 1 downwards as far as it will go and secure it into place 0 5 ...

Page 65: ...m 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 For the adjustment see the instruction manual of the motor manufacturer ...

Page 66: ...IEMASCHINEN AG Postfach 3020 D 67653 Kaiserslautern Königstr 154 D 67655 Kaiserslautern Telefon 0631 200 0 Telefax 0631 17202 E Mail info pfaff industrial com Gedruckt in der BRD Printed in Germany Imprimé en R F A Impreso en la R F A ...

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