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Pfaff 1122-720/02, Adjustment Manual, Page: 34 / 34

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Pfaff 1122-720/02 Adjustment Manual Download Page 34

PFAFF Industriesysteme 
und Maschinen AG

Hans-Geiger-Str. 12  -  IG Nord

D-67661 Kaiserslautern

Phone:  +49 - 631  200-0

Fax: 

+49 - 631  17202

E-mail:   [email protected]

Hotlines:

Technical  service: 

+49 - 175/2243-101

Application  consultance: 

+49 - 175/2243-102

Spare-parts  hotline: 

+49 - 175/2243-103

Printed in Germany

Summary of Contents for 1122-720/02

Page 1: ...TMENT MANUAL 296 12 18 582 002 Justieranleitung engl 06 09 This Adjustment Manual is valid for machines from the following serial numbers onwards 6 001 000 Industrial 1122 1122 G 1122 720 02 1122 G 72...

Page 2: ...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...

Page 3: ...10 Hook lubrication 12 13 12 05 11 Presser foot to needle place clearance presser foot pressure 12 14 12 05 12 Thread check spring 12 15 12 05 13 Needle thread tension release 12 16 12 05 14 Bobbin w...

Page 4: ...work sequence for machines which have to be completely adjusted If only specific individual work steps are carried out both the preceding and following chapters must be observed Screws nuts indicated...

Page 5: ...sition of the hook drive unit Requirement When the marking A on the balance wheel is level with marking 5 marking 3 should be level with marking 4 Remove toothed belt 1 Adjust belt wheel 2 in accordan...

Page 6: ...ance X from the right and left side of the needle plate cutout 2 With the longest stitch set in its front and rear point of reversal the feed dog should be the same distance Y from the needle plate cu...

Page 7: ...05 03 Height of the feed dog Requirement With the stitch length set at 0 at t d c the feed dog should protrude ca 1 mm over the needle plate Adjust holder 1 screw 2 in accordance with the requirement...

Page 8: ...12 5 109 037 12 05 04 Adjusting the stitch length Requirement The stitch length should be the same when sewing forwards or in reverse Adjust eccentric 1 screw 2 in accordance with the requirement Fig...

Page 9: ...ustment of the needle height Requirement With the stitch length set at 0 when the needle bar is at its b d c marking 3 should be flush with the lower edge of bushing 4 Adjust needle bar 1 screw 2 in a...

Page 10: ...he needle hole Requirement With the stitch length set at 0 the needles should enter the needle holes exactly in the centre Adjust needle bar frame 1 screw 2 in accordance with the requirement Turn nee...

Page 11: ...ave a side clearance to the needle of 0 05 0 10 mm 2 the upper edge of the needle eye should be 1 0 1 5 mm below the hook point and 3 needle guard 11 should slightly touch the needle Loosen screws 1 2...

Page 12: ...d tighten screws 3 Adjust hook screws 9 in accordance with requirement 1 PFAFF 1122 and 1122 G Adjust the needle height in accordance with requirement 2 also see Chapter 12 05 05 Preliminary adjustmen...

Page 13: ...top edge of the bobbin position stop and the bottom edge of the needle plate cutout Adjust hook 1 screws 2 in accordance with the requirement Do not twist hook 1 or the adjustment from Chapter 12 05...

Page 14: ...een bobbin case position finger 4 and the retaining trip of the needle plate Thread the machine and insert test material Allow the presser foot to rest on the needle plate Sew a few stitches by turnin...

Page 15: ...adjustment screw 1 and hook bearing 2 2 After a running time of 10 seconds a thin oil film should be visible on a strip of paper held next to the hook Pre adjust screws 1 in accordance with requiremen...

Page 16: ...f 7 mm to the needle plate 2 The material should be fed without difficultly even at top speed Raise the presser foot with the hand lever Reduce the speed on the presser foot using screw 1 nut 2 Withou...

Page 17: ...hread check springs 3 and 6 must rise slightly from rests 1 and 9 Adjust rest 1 screw 2 in accordance with requirement 1 To adjust the spring tension of thread check spring 3 turn screw 4 screw 5 To a...

Page 18: ...n the presser foot is touching the needle plate the tension must be fully effective Unscrew tension carrier plate 1 and align the pressure plate 2 in accordance with the requirement The clearance of 0...

Page 19: ...t engage reliably With the bobbin winder switched off friction wheel 5 must not touch drive wheel 1 2 The bobbin winder must switch off automatically when the thread level is approximately 1 mm from t...

Page 20: ...ting the knee lever stroke Requirement When the knee lever 3 is pushed fully the presser foot should rise approximately 8 mm from the needle plate Adjust screw 1 nut 2 in accordance with the requireme...

Page 21: ...dle rise position roller lever 8 should be positioned in the centre of the path of control cam 9 Adjust levers 1 and 2 screws 3 in accordance with requirement 1 Bring the machine into the needle rise...

Page 22: ...When the thread catcher 1 is operated by hand along the entire path between thread catcher 1 and the bobbin case position finger there should be a clearance of 0 05 0 20 mm Adjust thread catcher 1 scr...

Page 23: ...ent When the machine is in its basic position thread catchers 1 should each have a clearance of 27 2 mm to the corresponding edge of the needle plate cutout Adjust thread catcher 1 screws 2 in accorda...

Page 24: ...tion the bobbin thread should be caught reliably 3 After the trimming action both needle and bobbin thread must be perfectly cut Sew a few stitches Switch off the main switch Carry out the cutting ope...

Page 25: ...ould drop into the path of control cam 7 with a small clearance to the bottom of the cam and 2 there should be a distance of at least 0 5 mm between the tensions discs 8 Fig 12 21 Adjust screw 1 nut 2...

Page 26: ...behind and 0 5 1 0 mm below the needle point 3 The thread wiper 3 should catch the threads reliably 4 During its movement thread wiper 3 should not bump against anything Adjust stop 1 screws 2 in acc...

Page 27: ...8 By pressing the corresponding key select the desired user level 0 operator level A 1 technician level B 11 service level C The selected user level is displayed on the screen see arrow TE 101 1 TE 79...

Page 28: ...lect parameter 798 and the desired user level see Chapter 12 08 01 Selecting the user level Select parameter 607 by pressing the corresponding key TE 101 1 A B C D Select the required value for the ma...

Page 29: ...end of cutting signal 1 A B C 0 255 180 706 Needle position 6 start cutting signal 2 A B C 0 255 25 707 Needle position 9 A B C 0 255 164 start thread tension release 760 Fixed value multiplier 200 fo...

Page 30: ...off the machine Connect the PC serial interface or appropriate USB adapter and the machine control unit RS232 Switch on the PC and start the PFP boot program Select the machine type Press the programm...

Page 31: ...ameters are deleted the display rE appears for a short time on the screen Resetting the seam programs Press on key B All seam programs are deleted the display rE nA appears for a short time on the scr...

Page 32: ...Circuit diagrams Version 29 09 04 13 1 13 Schaltpl ne...

Page 33: ...Notes...

Page 34: ...ger Str 12 IG Nord D 67661 Kaiserslautern Phone 49 631 200 0 Fax 49 631 17202 E mail info pfaff industrial com Hotlines Technical service 49 175 2243 101 Application consultance 49 175 2243 102 Spare...

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