Pfaff 1181 Adjustment Manual
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Pfaff 1181 Adjustment Manual

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1181
1183
ADJUSTMENT MANUAL
1181-D
1183-D
This Adjustment Manual is valid for machines
from the following serial numbers onwards:
# 6 063 202
296-12-19 023/002
Justieranleitung engl. 06.09
®
Industrial

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Summary of Contents for Pfaff 1181

  • Page 1 ® Industrial 1181 1183 ADJUSTMENT MANUAL 1181-D 1183-D This Adjustment Manual is valid for machines from the following serial numbers onwards: # 6 063 202 296-12-19 023/002 Justieranleitung engl. 06.09...
  • Page 2 The reprinting, copying or translation of PFAFF Adjustment Manuals, whether in whole or in part, is only permitted with our previous authorization and with written reference to the source. PFAFF Industriesysteme und Maschinen AG Hans-Geiger-Str. 12 - IG Nord D-67661 Kaiserslautern...

  • Page 3: Table Of Contents

    Needle in needle hole center (only on PFAFF 1183) ............. 15 .05.10 Needle to needle hole centre (on PFAFF 1181) ..............16 .05.11 Synchronous strokes of needle- and drop feed (only on PFAFF 1181) ......... 17 .05.12 Hook shaft bearing and toothed belt tension ............... 18 .05.13 Hook lubrication ........................
  • Page 4 Circuit diagrams ........................ 45 Reference list for the Circuit diagrams 91-191 516-95 and 91-191 521-95 ...... 45 Circuit diagrams 91-191 516-95 ................... 47 Block diagram PFAFF 1180 with control unit P40 PD ............50 Circuit diagrams 91-191 521-95 ................... 51...

  • Page 5: Adjustment

    Adjustment Adjustment On the PFAFF 1181 and 1183 do not use a screw clamp on the needle bar! The special coating of the needle bar could be damaged. Please observe all notes from Chapter 1 Safety of the instruction manual! In particular care must be taken to see that all protective devices are refitted...

  • Page 6: Checking And Adjusting Aids

    Adjustment Checking and adjusting aids With the aid of blocking pin 1 (part No. 13-033346-05) and if necessary adjust- ment gauge 3 (part No. 61-111 639-73) the machine can be blocked in the follo- wing positions for adjustment Fig. 13 - 01 Needle bar position 1.8 mm past b.d.c.

  • Page 7: Adjusting The Basic Machine

    Adjustment Adjusting the basic machine Basic position of the machine drive .05.01 This adjustment is only required if toothed belt 2 has been removed. Requirement When the needle bar is positioned 0,6 mm past b.d.c., the markings 3 and 4 should be in alignment..

  • Page 8: Preadjusting The Needle Height

    Adjustment Preadjusting the needle height .05.02 Requirement When the needle bar is positioned 1.8 mm above BDC, the mark on the needle bar 1 must be flush with the bottom edge of the needle bar frame 3. Fig. 13 - 03 Set needle bar at 1.8 mm past b.d.c.

  • Page 9: Bottom Feed Neutral Position

    Adjustment Bottom feed neutral position .05.03 Requirement At stitch length setting "0", cranks 1 and 3 must be flush and the feed dog must not make any feeding motion when the balance wheel is turned. Fig. 13 - 04 Raise the presser foot and set the stitch length to "0". ●...

  • Page 10: Neutral Position Of The Needle Feed (Only On Pfaff 1181)

    Adjustment Neutral position of the needle feed .05.04 (only on PFAFF 1181) Requirement At stitch length setting "0" the needle bar must not make any feeding motion when the balance wheel is turned. Fig. 13 - 05 Set stitch length "0".

  • Page 11: Bottom Feed Lifting Motion

    Bottom feed lifting motion .05.05 Requirement At stitch length setting "0" and needle bar position 0.6 past b.d.c. on the PFAFF 1181 and at needle bar position t.d.c. on the PFAFF 1183, the bottom feed dog must be at its highest position, ontrol cam 3 must rest on lifting eccentric 1.

  • Page 12: Bottom Feed Dog Height

    Adjustment Bottom feed dog height .05.06 Requirement When feed dog 1 is at its highest point at stitch length setting "0" it must be centred in the feed slot crosswise and in feeding direction Rest on feed dog adjustment gauge 2 over its entire length. 57-34 Fig.

  • Page 13: Feed Dog Motion Of Bottom Feed Dog

    .05.07 Requirement With the needle bar at a position 0.6 past b.d.c. on the PFAFF 1181 or in position 0.6 past t.d.c. on the PFAFF 1183 the feed dog must not make any feeding motion when reverse- feed lever 3 is operated at the longest stitch length setting.

  • Page 14: Feeding Motion Of Needle Feed (Only On Pfaff 1181)

    Adjustment Feeding motion of needle feed .05.08 (only on PFAFF 1181) Requirement When the longest stitch length is set and the needle bar is positioned 0.6 mm past b.d.c., the needle should not move when the reverse-feed key 4 is operated..

  • Page 15: Needle In Needle Hole Center (Only On Pfaff 1183)

    Adjustment Needle in needle hole center .05.09 (only on PFAFF 1183) Requirement The needle must penetrate the needle hole exactly in the middle. Fig. 13 - 10 Set the needle in the needle hole. ● Loosen screws 1, 2 and 3.

  • Page 16: Needle To Needle Hole Centre (On Pfaff 1181)

    Adjustment Needle to needle hole centre .05.10 (on PFAFF 1181) Requirement The needle must enter excatly in the centre of the needle hole. Fig. 13 - 11 Set stitch length "0". ● Set the needle in the needle hole by turning the balance wheel ●...

  • Page 17: Synchronous Strokes Of Needle- And Drop Feed (Only On Pfaff 1181)

    Adjustment Synchronous strokes of needle- and drop feed .05.11 (only on PFAFF 1181) Requirement At the longest stitch length setting the needle and feed dog must move by the same stro- ke when the balance wheel is turned. Fig. 13 - 12 Set the longest stitch.

  • Page 18: Hook Shaft Bearing And Toothed Belt Tension

    Adjustment Hook shaft bearing and toothed belt tension .05.12 Requirement The front edge of the hook shaft 6 must be at a distance of 14.5 mm to the needle center. At the same time, the slot in the hook shaft bearing 1 (see arrow) must be par- allel to the bedplate and pointing opposite to the direction of sewing.

  • Page 19: Hook Lubrication

    Adjustment Hook lubrication .05.13 Requirement The centrifugal disk 1 must be positioned 1.5 mm in front of the oil ring 3. When the machine is running at full speed, after approx. 10 seconds a mark should be made by a fine stripe of oil on the strip of paper placed over the needle plate cutout. Fig.

  • Page 20: Needle Rise, Hook-To-Needle Clearance, Needle Height And Bobbin Case Position Finger

    Adjustment Needle rise, hook-to-needle clearance, needle height and bobbin case position finger .05.14 Requirement With the needle at 1.8 mm after BDC, the hook point 6 must point to the middle of the needle and be at a distance of 0.05 mm - 0.1 mm to the clearance cut of the needle, and the top edge of the needle eye must be 0.8 mm below the hook point.

  • Page 21: Thread Check Spring And Slack Thread Regulator

    Adjustment Thread check spring and slack thread regulator .05.15 Requirement The motion of the thread check spring must be completed when the needle point en- ters the material (spring stroke approx. 7 mm). When the thread loop is at its largest when going around the hook, the thread check spring must have moved by approx.

  • Page 22: Position Of Knee Lever

    Adjustment Position of knee lever .05.16 Requirement When the knee lever is in its resting position, the axle 5 must be parallel to the bedplate. When the presser foot is resting on the needle plate, the presser bar lifting lever 6 must be touching the circlip 8 lightly and be at a distance of approx.

  • Page 23: Knee Lever Stop

    Adjustment Knee lever stop .05.17 Requirement When the knee lever is fully actuated, the presser foot must be raised approx. 9 mm (or approx. 13 mm for a large needle bar stroke) above the needle plate, and lever 3 must swing down automatically. Fig.

  • Page 24: Bobbin Winder

    Adjustment Bobbin winder .05.18 Requirement With the bobbin winder on, the drive wheel 1 must engage reliably. With the bobbin winder off, the friction wheel 5 must not be driven by the drive wheel 1. The bobbin winder must turn off automatically when the thread level is approx. 1 mm from the edge of the bobbin.

  • Page 25: Limiting The Stitch Length

    Adjustment Limiting the stitch length .05.19 The maximum stitch length which can be selected can be limited mechanically. Fig. 13 - 20 When using Version A and B part sets, the maximum adjustable stitch length must not be larger than 3.0 or 4.5 mm (see chapter 3 Specifications, in the instruction manual)! Set the desired maximum stitch length with regulator disk 1.

  • Page 26: Presser Foot Pressure

    Adjustment Presser foot pressure .05.20 Requirement The material must be fed reliably. In the process, pressure marks on the material must not be made. Fig. 13 - 21 Turn screw 1 in accordance with the requirement. ●...

  • Page 27: Modifying The Needle Bar Stroke

    Adjustment Modifying the needle bar stroke .05.21 The needle bar stroke is preset in the factory according to requirement. The needle bar stroke can be modified later if specific operating conditions make it necessary to do so. Fig. 13 - 22 When the needle bar stroke is altered, it is absolutely necessary to readjust the needle height! With a 36 mm needle bar stroke, the maximum speed must be limited to 3800 spm.

  • Page 28: Adjusting The Edge Trimmer -731/01

    Adjustment Adjusting the edge trimmer –731/01 Zero position of the knife .06.01 Requirement With the edge trimmer switched off, the knife should not move when the balance wheel is turned. Fig. 13 - 23 Turn crank 1 (screw 2) according to the requirement. ●...

  • Page 29: Cutting Motion

    .06.02 Requirement With the edge trimmer switched on and the needle bar at its t.d.c. on the PFAFF 1183, or at its b.d.c. on the PFAFF 1181, the knife should be at the top of its stroke. Fig. 13 - 24 Switch on the edge trimmer and bring the needle bar to t.d.c.

  • Page 30: Knife Height

    Adjustment Knife height .06.03 Requirement When the knife is at the bottom of its stroke, the front edge of the knife blade should be approx. 0.5 mm below the top edge of the stationary knife. 0,5 mm Fig. 13 - 25 Switch on the edge trimmer and bring the knife to the bottom of its stroke.

  • Page 31: Cutting Angle Of The Knife

    Adjustment Cutting angle of the knife .06.04 Requirement The knife should be Touching the stationary knife 6 without counter pressure and Be at a 0.1 mm slant to the stationary knife 6. 0,1 mm Fig. 13- 26 Loosen screws 1. ●...

  • Page 32: Knife Position In Sewing Direction

    Adjustment Knife position in sewing direction .06.05 Requirement When the needle is at its b.d.c., the centre of the knife blade should be positioned at "needle centre". Fig. 13- 27 Adjust knife bracket 1 (screw 2) according to the requirement. ●...

  • Page 33: Knife Position Crosswise To Sewing Direction

    Adjustment Knife position crosswise to sewing direction .06.06 Requirement The knife should be resting on the stationary knife 3 with light pressure. Fig. 13- 28 Adjust knife bracket 1 (screw 2) according to the requirement. ●...

  • Page 34: Adjusting The Thread Trimming Device -900/24

    Adjustment Adjusting the thread trimming device -900/24 Adjusting the solenoid / preliminary adjustment of the control cam .07.01 Requirement When solenoid 3 is completely extended, roller lever 4 should be at the lowest point of the control cam. When the needle bar is positioned at 1.8 mm after b.d.c. (needle rise position), roller lever 4 should engage in the appropriate recess of the control cam.

  • Page 35: Lateral Alignment Of The Thread Catcher

    Adjustment Lateral alignment of the thread catcher .07 .02 Requirement The tip of the thread catcher 5 must point exactly to the center of the needle. The thread catcher 5 must be horizontal. It must not graze anything when it is operating.

  • Page 36: Knife Position

    Adjustment Knife position .07 .03 Requirement There must be a distance of 4 mm between the cutting edge of the knife and the needle. The right edge of the knife 1 must not extend beyond the right edge of the thread catcher (see arrow).

  • Page 37: Front Point Of Reversal Of The Thread Catcher

    Adjustment Front point of reversal of the thread catcher .07 .04 Requirement At the front point of reversal of thread catcher 4, the tip of the thread catcher cutout should be 1 mm in front of the bobbin case position finger 5. 89-025 Fig.

  • Page 38: Manual Trimming Check

    Adjustment Manual trimming check .07 .05 Requirement Two threads must be cut perfectly both left and right in the cutout of thread catcher 1. Fig. 13 - 33 Move thread catcher 1 by hand to its front point of reversal. ●...

  • Page 39: Needle Thread Tension Release

    Adjustment Needle thread tension release .07 .06 Requirement The magnet lift should be 1.5 mm. When the magnet 5 is operated by hand, there should be a distance of at least 0.5 mm between the tension discs 6. 0,5 mm Fig.

  • Page 40: Readjusting The Control Cam

    Adjustment Readjusting the control cam .07 .07 Requirement When the take-up lever is in its t.d.c., control cam 1 should have moved thread catcher 3. Fig. 13 - 35 Adjust control cam 1 (screws 2) according to the requirement. ●...

  • Page 41: Adjusting The Automatic Presser Foot Lift -910/06

    Adjustment Adjusting the automatic presser foot lift -910/06 Requirement When the automatic presser foot lift is operated, the clearance between the presser foot and the needle plate must be 9 mm for a small needle bar stroke and 13 mm for a large needle bar stroke.

  • Page 42: Adjusting The Back-Tacking Mechanism -911/37

    Adjustment Adjusting the back-tacking mechanism –911/37 Requirement When the longest stitch length is set, the reverse-feed control switch 3 operated and the plunger extended, lever 1 should not touch the bed-plate.. Fig. 13 - 37 Adjust lever 1 (screw 2) according to the requirement. ●...

  • Page 43: Parameter Settings

    Adjustment Parameter settings (only on machines with Quick-EcoDrive and control unit P40ED or Quick-PicoDrive and control unit P40PD ) The selection of the user level and the alteration of parameters is described in the sepa- ● rate instruction manual for the drive unit. Parameter list .10.01 Speed for start backtackl...
  • Page 44 Adjustment Selected machine class 1 - 3 Rotating direction of the motor 0 - 1 Main drive reduction ratio 0 - 1 0 = 1:1 1 = variable Switch on angle for thread trapper B, C 0 -255 Switch off angle for thread trapper B, C 0 -255 Thread trapper at beginning of seam...

  • Page 45: Circuit Diagrams

    Circuit diagrams Stromlaufpläne Circuit diagrams Reference list for the Circuit diagrams 91-191 516-95 and 91-191 521-95 Control package P40 ED P40 PD 91-191 516-95 91-191 521-95 Control unit Quick P40ED Control unit Quick P40PD S2 control panel PicoTop control panel Sewing head recognition Sewing lamp LED reverse stitch counting...
  • Page 46 Circuit diagrams Control package P40 ED P40 PD 91-191 516-95 91-191 521-95 Motor running Thread trimmer (-900/..) Thread clamp Automatic presser foot lift (-910/..) Backtacking device (-911/..) Thread tension release...

  • Page 47: Circuit Diagrams 91-191 516-95

    91-191 516-95 Circuit diagrams Part 1 Version 12.12.06 Circuit diagrams 91-191 516-95...
  • Page 48 Circuit diagrams 91-191 516-92 Version 12.12.06 Part 2...
  • Page 49 91-191 516-95 Circuit diagrams Part 3 Version 12.12.06...

  • Page 50: Block Diagram Pfaff 1180 With Control Unit P40 Pd

    Block diagram Version 22.05.07 Block diagram PFAFF 1180 with control unit P40 PD 1180 BDF - PICO TOP Drive / Ministop incremental transducer software download Speedcontrolunit Control unit P40 PD power switch Control package P40 PD Mains plug...

  • Page 51: Circuit Diagrams 91-191 521-95

    91-191 521-92 Circuit diagrams Part 1 Version 22.05.07 Circuit diagrams 91-191 521-95...
  • Page 52 Circuit diagrams 91-191 521-92 Version 22.05.06 Part 2...
  • Page 53 Notes...
  • Page 54 PFAFF Industriesysteme und Maschinen AG Hans-Geiger-Str. 12 - IG Nord D-67661 Kaiserslautern Telefon: +49 - 6301 3205 - 0 Telefax: +49 - 6301 3205 - 1386 E-mail: info@pfaff-industrial.com Gedruckt in der BRD / Printed in Germany / Imprimé en la R.F.A. / Impreso en la R.F.A...

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