Pfaff 3811-11/43 Instruction Manual Download Page 5

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Specifications for the PFAFF 3811-../..

Sewing machine head :

for -2/45: ....................

5487/5489-814/01 N

for -11/43 und -11/45:..

5487/5489-814/01

for -13/45: ..................

5487/5489-814/01-731/12

Stich type :

401

Max. s.p.m. :

3200 min

-1

Basic stitch length :

3 and 4 mm ( -2/45 2,2 mm)

Differential stitch length :

8 mm ( -2/45 6 mm)

Needle system :

Leather: 4463KKD
Fabric:

4463-35

Needle size :

80 - 110 depending on material

Trimming margin : (only -13/45)

6mm

Presser foot clearance :

7mm

Sewing motor :

QE 6040, Q 31 PLUS, P 40 SE, Q 40 SE

Input rating :

0,8 kW

Power supply :

E 230 Volt, 50/60Hz

Working air pressure :

6 bar

Air consumption :

~0,3 - 0,5 Normlitre per work cycle

Work place related emission level :

at s.p.m. n=2600min

-1

: L

<79 dB(A). Noise level

measurement in accordance with DIN 45635-48-A-1

Dimensions :

LxBxH (1250 x 600 x 1700mm; incl. spool holder)

Weight :

Net: 140 kg

Subject to alterations

Status 06.94

Fields of application

PFAFF 3811 -2/45

-11/43
-11/45

Integrated sewing unit for working fullness into a material ply

PFAFF 3811 -13/45

Integrated sewing unit for working fullness into a material ply with simultaneous edge
trimming

Summary of Contents for 3811-11/43

Page 1: ...45 13 45 Instruction manual For machines with a thread trimmer use the Maintenance Manual 900 71 for the PFAFF 5480 Use the motor manufacturer s technical literature for the motor 296 12 17514 Betriebsanleitungengl 06 97 ...

Page 2: ...priately trained persons l Repairs conversion and special maintenance work must only be carried out by technicians or persons with appropriate training l For service or repair work on pneumatic systems the machine must be disconnected from the compressed air supply system Exceptions to this are only adjustments and function checks made by appropriately trained technicians l Work on the electrical ...

Page 3: ... 12 Top feed pressure and presser foot pressure 14 1 Adjusting the top feed pressure 14 2 Adjusting the presser foot pressure 14 13 Adjusting the stitch length 14 14 Preparing for adjustments 16 15 Needle position in the needle hole 16 1 Across the sewing direction 16 2 With the sewing direction 16 16 Preadjusting the needle height 18 17 Bottom feed settings 20 1 Zeroing the main feed dog 20 2 Lim...

Page 4: ... 56 26 Needle thread regulator 56 27 Adjustable thread guide 56 28 Hook thread regulator 58 29 Hook thread controller 58 30 Hook thread puller 58 31 Quick adjustment of the differential for altering the gathering intensity 60 1 Zeroing the differential quick adjustment 60 1 1 Rough adjustment at the Angle transmitter 60 1 2 Fine adjustment at the poti 0 60 2 Key allocation for positioning the cam ...

Page 5: ...motor QE 6040 Q 31 PLUS P 40 SE Q 40 SE Input rating 0 8 kW Power supply E 230 Volt 50 60Hz Working air pressure 6 bar Air consumption 0 3 0 5 Normlitre per work cycle Work place related emission level at s p m n 2600min 1 LpA 79 dB A Noise level measurement in accordance with DIN 45635 48 A 1 Dimensions LxBxH 1250 x 600 x 1700mm incl spool holder Weight Net 140 kg Subject to alterations Status 06...

Page 6: ...n depends on the motor Quick digital motor control panel see technical literature from the motor manufacturer Knee lever for fullness By pressing the knee lever you achieve the following results on the 2 45 switching between the two fullness levels which are set with the keys and on the 11 43 11 45 13 45 switching between the last value selected with a numbered key and sewing without fullness s in...

Page 7: ... mm With keys to the fullness levels set with the potis 10 to 15 can be called up to Edge trimmer on off only on 13 45 This key is also on the other sub classes but it is without function The edge trimmer cannot be installed later for setting 2 fullness levels which can be switched to and from with the knee lever only 2 45 Example if you wish to switch between key and key l Press the key press the...

Page 8: ...sure regulation adjusting knob 2 5 2 Electricity 1 The admissable working voltage arrow in fig 3 is indicated on the specification plate 2 Never operate the machine if the supply voltage and the working voltage are not the same circuit diagram 3 Only plug the machine into an earthed power socket 6 Switching the machine on 1 Open the air pressure at the main conductor 2 Check the working pressure 6...

Page 9: ...9 1 1 2 3 1 Bi34 01 CDR 2 4 3 Bi03 03 CDR ...

Page 10: ...g 2 1 Switch on the machine 2 Lift the presser foot with the hand lever 3 Press the foot pedal lightly 1 forwards fig 3 4 If the direction of rotation is wrong see the technical literature from the motor manufacturer parameter 800 9 Inserting the needle 1 Switch the machine off mains switch 2 Slide the needle bar into position until it stops long groove facing the operator 10 For your attention be...

Page 11: ...11 4 1 Min Oil level Max Oil level 1 2 Bi08 01 Bi18 05 Bi08 04 CDR Bi02 01 3 ...

Page 12: ... Chapter 11 2 3 Pull the needle thread approx 7 cm 2 3 4 inches 11 2 Adjusting the needle thread tension Milled nut 1 fig 1 more tension less tension 11 3 Threading the hook thread 1 Turn the machine off mains switch 2 Remove cover 2 fig 1 catch 3 3 Thread the hook thread in accordance with fig 2 and 3 11 4 Adjusting the hook thread tension Milled nut 4 fig 2 more tension less tension ...

Page 13: ...13 3 2 1 4 1 Bi11 01 CDR 2 3 Bi11 02 Bi11 04 Bi11 03 ca 7cm ...

Page 14: ...presser foot should be adjusted so that the workpiece is fed perfectly at all sewing speeds 12 1 Adjusting the top feed pressure Screw 3 fig 1 more tension less tension 12 2 Adjusting the presser foot pressure Milled ring 4 milled nut 5 more tension less tension 13 Adjusting the stitch length Adjusting lever 6 fig 3 ...

Page 15: ...15 2 Bi12 02 CDR Bi12 03 CDR 3 6 1 2 4 5 1 3 Bi12 01 CDR ...

Page 16: ...tment it is recommended to remove the presser foot insert a new needle 15 1 Across the sewing direction Requirement The needle 3 fig 2 should enter the middle of the needle hole across the sewing direction 1 Loosen screws 4 and 5 fig 4 2 Move the needle bar frame 6 fig 3 in accordance with the requirement 3 Tighten screws 4 and 5 fig 4 15 2 With the sewing direction Requirement Clearance between t...

Page 17: ...17 4 Bi14 04 5 Bi14 05 Schematic diagram 7 6 Bi14 03 3 6 4 5 7 4 7 5 0 8mm Bi14 02 CDR 2 3 ...

Page 18: ... the needle plate and the point of the needle must be 11 mm approx 1 2 inch fig 2 1 Bring the needle bar 1 fig 3 to its top dead centre handwheel 2 Insert the cylindrical pin see chapter 14 in hole 1 fig 1 of the bearing disc the machine is blocked 3 Move the needle bar 1 fig 3 in accordance with the requirement screws 2 4 Remove the cylindrical pin ...

Page 19: ...19 Bi01 01 1 1 2 Bi16 02 CDR 11mm Bi14 03 3 1 2 ...

Page 20: ...In order to be able to see more effectively that the feed is at a standstill insert a screwdriver in the clamp slot of the feed crank 5 fig 5 5 While continually turning the handwheel change the position of the reversing crank 4 fig 4 in such a way that the main feed dog fig 2 does not move laterally i e the screwdriver in the clamp slot of the feed crank 5 fig 5 does not move 6 Tighten the clamp ...

Page 21: ...21 5 Bi17 03 CDR 3 4 Bi17 04 CDR 2 Bi17 03 3 4 4 Bi17 05x CDR 5 ...

Page 22: ... the control cam 8 fig 8 at 0 turn cam carrier 9 on the shaft Note With the control cam set at 0 the actuating lever 10 must have a little bit of play see arrow in fig 8 3 Loosen clamp screw 11 fig 9 just enough so that the reversing crank 12 can only be turned on its shaft using much force 4 While continuing to turn the handwheel change the position of the reversing crank 12 fig 10 so that the ma...

Page 23: ...23 Bi17 04 CDR 12 Bi17 03 9 11 12 7 Bi12 03 CDR 8 9 8 10 Bi17 16x CDR 6 7 Bi14 02N CDR 6 1 0 1 ...

Page 24: ...cal pin 3 Set the stitch length at 4 mm stitch length adjustment lever 1 fig 15 4 Set the control cam 8 fig 16 at 0 turn cam carrier 9 on its shaft Note In order to be able to see more effectively that the feed is at a standstill insert screwdrivers in the clamp slots of the feed cranks 5 and 16 fig 17 5 While continually moving the lever 13 fig 11 up and down turn the feeding motion eccentrics 14...

Page 25: ...25 1 5 1 6 8 9 14 Bi01 01 4 Bi17 16 CDR 1 7 Bi17 5xx CDR Bi12 03 CDR 1 3 Bi17 04 CDR 14 2x 15 2x 1 5 16 ...

Page 26: ...the 2 screws 19 and the two screws 20 fig 20 2 Using the handwheel bring the needle bar to its t d c adjustment hole 1 fig 19 and lock it in this position with the cylindrical pin 3 Adjust both feed lifting eccentrics 17 and 18 in accordance with the requirement 4 Tighten the two visible screws 19 and 20 5 Turn the handwheel until the other two screws 19 and 20 are visible Tighten these screws als...

Page 27: ...27 18 Bi17 18 CDR 19 2x 18 17 20 2x 20 Bi17 20 CDR 17 19 2x 18 20 2x 19 Bi01 01 1 ...

Page 28: ...ever 1 fig 22 2 Using the handwheel bring the needle bar to its t d c adjustment hole 1 fig 21 and lock it in this position with the cylindrical pin 3 Loosen screws 21 fig 25 and 22 in the feed lifting cranks 4 Loosen screws 23 and 24 in the feeding motion cranks 5 Position the main feed dog 6 fig 24 and the differential feed dog 7 in the middle of the needle plate cutout set the clearance between...

Page 29: ...29 Bi01 01 1 21 1 9mm 1 4mm 4mm parallel to needle plate Bi17 21 CDR 23 main feed dog 6 differential feed dog 7 Bi20 03 CDR Bi12 03 CDR 22 24 21 22 Bi17 20 CDR 28 27 24 23 26 25 25 1 7 6 needle plate ...

Page 30: ...tween the eye of the connecting rod 1 fig 2 and the machine housing 2 1 Bring the needle bar into a position 0 8 mm below its t d c handwheel and lock it in this position with the cylindrical pin 2 Loosen screw 3 fig 4 3 Change the size of the clearance in accordance with the requirement by pulling out or pushing back the connection rod 1 4 Tighten screw 3 5 Carry out a check 6 Remove the cylindri...

Page 31: ...31 Bi18 16 Bi18 05 4 1 4 Bi01 01 16 5mm Bi18 17 CDR 3 2 2 1 3 1 2 ...

Page 32: ...aft Note The actuating lever 10 must have a little bit of play when the control cam is set at 0 see arrow in fig 8 4 Basic position of the top feed driving eccentric 11 When the needle bar is 0 8 mm below the t d c adjustment hole 4 fig 9 the slot in the top feed driving eccentric 8 arrow in fig 8 must point to the operator screws 12 5 While continually turning the handwheel and observing the late...

Page 33: ...33 Bi01 01 4 7 9 Bi12 03 CDR 7 4 5 Bi17 03x CDR 10 8 Bi17 16x CDR 8 9 10 6 Bi18 04x CDR 6 5 Bi18 05 11 12 ...

Page 34: ...er foot 15 fig 12 is touching the needle plate 16 and the top feed 5 is at its t d c the distance between the top edge of the needle plate 16 and the bottom edge of the top feed should be 3 mm 1 Set the stitch length at 4 mm stitch length adjustment lever 7 fig 14 2 Bring the top feed 5 fig 12 to its t d c handwheel 3 Position the top feed parallel to the needle plate pin 17 screw 18 Basic positio...

Page 35: ...35 Bi14 03A 3mm Bi14 03 Bi18 10 CDR 14 10 21 22 24 19 20 17 16 15 16 Bi17 16x CDR 10 8 9 16 5 15 15 5 18 Bi12 03 CDR Bi17 03x CDR 4 23 7 17 14 13 Bi18 12 11 12 ...

Page 36: ...ve the top feed 3 fig 2 and the differential feed dog 4 3 Set the stitch length at 2 mm adjustment lever 5 fig 3 4 Switch the machine on mains switch 5 Press key fig 1 cam 6 fig 6 runs at 10 5 on the scale 6 Turn off the machine mains switch 7 Pull the cylinder 1 fig 4 as far out as possible by hand 8 Place a piece of thin cardboard underneath the presser foot 9 Turn the handwheel slowly until 11 ...

Page 37: ...37 5 Bi17 03x CDR 2 4 3 Bi12 03 CDR 5 2 Bi18 04x CDR 4 3 Bi12 08 7 1 8 Bi19 05 CDR 7 Bi19 09 CDR 6 6 11 perforations 10 stitches 30 mm ...

Page 38: ...are that the hand lever 1 is still in its upwards position 4 Tighten screw 4 5 Check that the edge of the presser foot is parallel to the needle plate cutout the needle enters the presser foot needle hole exactly in the middle If necessary align the presser foot as described in chapter 20 3 20 2 Presser foot stroke with the automatic presser foot lifter Requirement With the plunger 9 fig 1 retract...

Page 39: ...39 Bi14 03 1 Bi14 03B 7mm 2 3 4 2 3 1 9 8 7 11 5 Bi20 03 CDR 10 10 5 1 6 ...

Page 40: ... 4 is still in its upwards position 10 Let the presser foot 2 come to rest on the needle plate 3 hand lever 1 fig 4 and loosen screw 18 fig 8 11 Pivot the connecting joint 14 fig 8 into the bracket of the feed driving lever 15 12 Mount the bearing pin 12 fig 9 screw 13 Note Pay attention to the ease of movement If necessary align the feed driving lever 15 fig 7 13 13 Using the handwheel bring the ...

Page 41: ...41 5mm Bi14 03B 6 Bi19 07 7 1 5 Bi01 01 7 4 2 Bi14 03 4 4 5 2 1 6 16 12 1 6 8 3 Bi19 08 8 1 9 2 1 3 2 Bi20 03 CDR 1 1 4 1 5 1 7 1 6 2 0 1 8 1 5 1 3 1 2 2 1 9 1 ...

Page 42: ...fig 2 1 Loosen both screws 2 fig 3 2 Using the handwheel position the needle bar at its t d c adjustment hole 1 fig 1 and lock it in this position with the cylindrical pin 3 Turn the lateral eccentric 1 fig 3 in such a way that the notch arrow in fig 2 points directly downwards 4 Tighten the visible screw 5 Remove the cylindrical pin from the bearing disc 6 Tighten the second screw 2 7 Carry out a...

Page 43: ...43 1 Bi01 01 1 3 Bi17 20 CDR Bi20 02 CDR 1 2 1 2 2x ...

Page 44: ...tinue with points 8 and 9 8 Replace the spacer 10 fig 8 screw 11 9 Position the hook blade parallel to the side edge of the needle plate cutout fig 7 screw 11 21 2 2 Machines with the thread trimmer 900 Requirement When the hook carrier 3 fig 4 is standing vertical the clearance between the highest point on the back of the hook and the bottom of the thread trapper 12 should be 0 3 mm fig 8 1 Remov...

Page 45: ...45 7 parallel Bi20 06 CDR Stitch plate support surface 5 Bi20 04 CDR Gauge Hook 0 7mm 0 7mm Stitch plate support surface Gauge 8 0 3mm 12 Bi20 09 CDR 10 4 Bi17 05 CDR 9 7 8 3 11 5 6 4 6 Bi18 04x CDR 11 ...

Page 46: ...rn the handwheel until the hook point coming from the right hand side reaches the left side of the needle 2 Loosen the hook unit 15 fig 11 screws 16 3 Align the hook unit 15 in accordance with the requirement 4 Tighten screws 16 21 5 Hook to needle clearance in hook direction across the sewing direction Requirement At the right turning point of the hook the hook point should be 3 6 mm from the nee...

Page 47: ...47 Bi21 10 CDR 13 3 14 Bi21 11 10 13 3 0 1mm 9 Bi17 05 CDR 15 Bi21 12 16 Bi21 13 12 Bi21 13 CDR Needle Hook 3 6 3 6 3 6 3 6 3 6 3 6mm Gauge 13 11 19 17 18 2 ...

Page 48: ...ouches the needle bar frame 1 Insert a new 80 Nm needle 2 Turn the handwheel until the point of the hook coming from the right hand side is just on the left hand side of the needle fig 14 3 In this position fasten the clamp screw fig 16 onto the needle bar so that the clamp screw touches the needle bar frame upwards movement of the needle bar is blocked 4 Turn the handwheel in the opposite directi...

Page 49: ...49 Bi21 15 CDR 14 15 Bi21 16 CDR 16 Part No 08 880 137 00 Bi21 17 17 Bi17 04 CDR 20 21 2x ...

Page 50: ... the hook and the needle 1 Turn the handwheel until the point of the hook reaches the left hand side of the needle coming from the right hand side 2 Loosen the screws 22 fig 20 Note Do not turn the needle bar 23 when carrying out the following adjustment 3 Raise or lower the needle bar 23 so that there is a clearance of 1 0 1 2 mm between the top edge of the needle eye and the bottom edge of the h...

Page 51: ...51 Bi21 18 CDR 18 1 0 1 2mm Bi14 03 22 23 20 19 Bi21 19 CDR 0 1mm Hook ...

Page 52: ...needle guard arrow in fig 1 4 Remove the cylindrical pin 5 Carry out a check 22 2 Clearance between the rear needle guard and the needle Requirement When the point of the hook coming from the right hand side has reached the right hand side of the needle the needle should still be touching the rear needle guard 1 arrow in fig 4 1 Turn the handwheel until the point of the hook coming from the right ...

Page 53: ...53 Bi22 21 CDR Bi21 11 2 1 2 1 1 Bi01 01 3 3 Bi22 04 CDR 4 Bi22 05 5 6 Bi22 06 3 4 6 7 5 ...

Page 54: ...h with the bottom edge of the hook point fig 1 4 Position the needle guard finger 1 parallel to the hook blade and tighten the screws 4 24 2 Lateral adjustment Requirement When the hook point is exactly behind the middle of the needle there should be a clearance of 0 3 mm 0 5 mm between the front needle guard finger 1 and the needle fig 4 1 Bring the hook to its left turning point handwheel 2 Move...

Page 55: ...55 Bi24 01 CDR 1 2 Bi22 06 2 1 1 4 3 5 2 Bi24 04 CDR 0 3 0 5mm 3 4 1 ...

Page 56: ...r basic setting Requirement With the needle bar at its bottom turning point the eyelet of the needle thread regulator 3 should be at the same height as the hole in the needle thread puller 1 arrow in fig 3 Note Depending on the workpiece and the type of thread a small change in this basic setting may be necessary 1 Bring the needle bar to its b d c handwheel 2 Loosen the retaining screw of the nee...

Page 57: ...57 0 3mm Bi25 01 1 1 2 Bi26 01 Bi26 02 2 3 3 1 3 4 Bi27 01 4 5 ...

Page 58: ...1 1 Move the thread regulator 4 fig 1 in accordance with the requirement screw 5 2 Carry out a control 30 Hook thread puller Requirement With the needle bar at its t d c adjustment hole 1 fig 3 both eyelets of the hook thread puller 3 should be just in front of the front edge of the thread regulator 4 fig 5 1 Loosen screw 6 fig 1 a little until the hook thread puller 3 can be moved by hand on its ...

Page 59: ...59 Bi29 04 CDR 5 4 1 3 4 Bi29 03 CDR 8mm 3 Bi28 01 1 1 2 5 4 3 6 Bi01 01 1 2 29mm ...

Page 60: ...tuating lever 2 is at the 0 on the scale 9 In this position tighten the retaining nut on the angle encoder 10 Place the roller of the actuating lever 2 against the control cam and tighten the screw 3 fig 3 11 Remove the connecting rod 4 12 Carry out a control see requirement Screw the protective cover back on the angle encoder Mount the cover plate 31 1 2 Fine adjustment at the Poti 0 fig 4 Requir...

Page 61: ...61 1 2 1 2 3 4 3 4 Poti 0 Bi17 16 CDR Bi31 02 CDR Bi1703x CDR Tastenfeld von 11 43 11 45 13 45 ...

Page 62: ...l the desired cam position is reached test seam 31 2 2 Setting the gathering levels Example Material home furnishing fabric Band tension none Sewing thread thickness 50 Machine rpm 3200 min1 Length of the test sample 100 cm 26 inches Key Stitch length Gathered Cam in mm length in cm position 4 100 0 4 95 6 4 89 8 4 84 9 4 80 10 4 76 11 4 70 12 4 65 13 4 61 14 4 58 15 3 54 10 5 3 52 11 5 3 48 12 5 ...

Page 63: ...63 7 6 5 Tastenfeld von 11 43 11 45 13 45 Bi31 02 CDR Bi19 04 CDR ...

Page 64: ...d not move up or down 1 Switch off the edge trimmer key LED off fig 2 2 Turn the eccentric pin 3 fig 3 in such a way that the eyes of the levers 4 and 5 are at the same level screw 6 3 Turn lever 7 until the upper knife remains motionless when the handwheel is turned screw 8 32 3 Knife height Requirement With the upper knife at its lowest point the front edge of the blade should be approx 0 5 mm u...

Page 65: ...65 3 9 1 0 0 5mm 1 2 3 4 5 7 8 6 4 Bi32 05 5 Bi32 05 Bi32 03 2 Tastenfeld von 11 43 11 45 13 45 ...

Page 66: ...osition 3 Lay the upper knife onto the stationary knife with a small amount of pressure screw 13 fig 7 Requirement The upper knife 9 fig 8 should be slightly out of alignment with the stationary knife scissor effect 4 Position the knife carrier 11 fig 7 a little out of alignment with the stationary knife screw 15 32 6 Aligning the stop eccentric Requirement When the stopper 16 fig 9 is touching th...

Page 67: ...67 9 6 8 12 15 11 13 17 16 21 22 14 9 5mm 10 19 18 Bi32 09 Bi32 10 Bi32 08 7 Bi32 05 Bi32 04 CDR ca 1mm ...

Page 68: ...is pressed sewing without fullness the tape brake does not function Only the pre tension 2 functions 33 2 Switching off Switching off Press the key LED off The tape brake is off regardless of what key is pressed 33 3 Adjusting the brake intensity Knurled ring 3 fig 1 More braking effect less braking effect 33 4 Pre tension Knurled nut 4 fig 1 More braking effect less braking effect ...

Page 69: ...69 1 Bi33 01 CDR 3 1 2 4 Tastenfeld 11 43 11 45 13 45 2 Bi02 03 CDR ...

Page 70: ...l taking into account the above mentioned factors and the applicable instruction booklet 2 To avoid operational disturbances we recommend the following cleaning measures for one shift operation Entire unit 1 x weekly Hook area at least 1 x daily 34 2 Air filter lubricator 1 Water trap Max water level see arrow in fig 1 1 Empty the container once a day screw 2 2 Air filter Note Clean the filter whe...

Page 71: ...n average 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 The oils used must not or only to a negligible extent effect swelling or shrinkage of the sealing substances under any operating conditions ...

Page 72: ...ach 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 ïôÐe aôaÇï ÖÑÃ ...

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