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-900/97
-900/99
Service Manual
for the series
480, 560 and 950
296-12-17 612
Justieranleitung engl. 06.95

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Summary of Contents for Pfaff 480 Series

  • Page 1 -900/97 -900/99 Service Manual for the series 480, 560 and 950 296-12-17 612 Justieranleitung engl. 06.95...
  • Page 2 At the time of printing, all information and illustrations contained in this document were up to date. Subject to alteration! The reprinting, copying or translation of PFAFF Service Manuals, whether in whole or in part, is only permitted with our previous agreement and with written reference to the source.
  • Page 3: Table Of Contents

    Table of Contents Contents ................Chapter - Page Safety ..................... 1 - 1 General notes on safety .................... Safety symbols ......................1 - 2 Danger ........................1 - 2 Adjustment ..................... 2 - 1 Notes on the service manual ..................2 - 1 Tools, gauges and other accessories ................
  • Page 4: Safety

    Safety Safety General notes on safety This machine must only be operated by adequately trained operators and only after having completely read and understood the Instruction Manual! All Notes on Safety and Instruction Manuals of the motor manufacturer are to be read before operating the machine! The Danger and Safety Instructions on the machine itself are to be followed! The machine must be used only for the purpose for which it is intended and must not...
  • Page 5: Danger

    Safety Safety symbols Danger! Points to be observed. Danger of injury to operating and specialist personnel! Danger Do not reach into the sewing area while sewing! Danger of injury caused by needle! Do not leave any objects on the table or near the needle plate while carrying out adjusting work.
  • Page 6: Adjustment

    On the 480 series no c-clamps may be attached to the needle bar as this would damage the special coating on the needle bar. Refer to the motor manufacturer’s instruction manual for the setting of the...
  • Page 7: Lateral Adjustment Of The Thread Catcher

    Adjustment Lateral adjustment of the thread catcher Requirement 1. The tip of the thread catcher 3 must point exactly to the centre of the needle. 2. The thread catcher 3 should not touch anywhere when in motion. -900/97 -900/99 99-2-01 Fig.
  • Page 8: Front Reversal Point Of The Thread Catcher

    Adjustment Front reversal point of the thread catcher Setting for -900/97 .06.01 Requirement At the front reversal point of the thread catcher 6, the needle should move through the middle of the hole of thread catcher 6 when the handwheel is turned. Fig.
  • Page 9: Setting For -900/99

    Adjustment Setting for -900/99 .06.02 Requirement At the front reversal point of the thread catcher 6, the rear edge of the thread catcher cutout should be positioned 1 to 1.5 mm in front of the front edge of the bobbin case position finger 7.
  • Page 10: Knife To Needle Clearance (Only -900/99)

    Adjustment Knife to needle clearance (for -900/99) Requirement The distance between the front edge of the knife 1 and the needle should be 4 mm. 4 mm 2-12 Fig. 2 - 04 On needle-feed machines set the stitch length to „O“. Position the needle bar at BDC.
  • Page 11: Manual Trimming Control

    Adjustment Manual trimming control Control for -900/97 .08.01 Requirement Both threads must be cut perfectly in the thread-catcher cutout on both the right and left-hand sides. 97-2-03 Fig. 2 - 05 Mount the feed dog and needle plate, making sure that the movement of the feed dog in the needle plate cutout is not restricted.
  • Page 12: Control For -900/99

    Adjustment Control for -900/99 .08.02 Requirement Both threads must be cut perfectly in the catcher cutout on both the right and left-hand sides. Fig. 2 - 06 99-2-04 Position needle bar at TDC and thread catcher 1 at its front reversal point. Double a thread and insert it into the cutout of thread catcher 1.
  • Page 13: Needle Thread Tension Release

    Adjustment Needle thread tension release Requirements 1. At the rear reversal point of the thread catcher, trip 4 must be engaged and at a distance of 0.5 mm from control cam 5. 2. When the tip of trip 4 is at the highest point of the control cam 5, the tension disks must be a minimum of 0.5 mm from each other.
  • Page 14: Air Blast Dosage (Only -900/97)

    Adjustment Air blast dosage (only -900/97) Requirement When the thread catcher is in reverse motion, the cut-off end of the starting thread should be blown out of the catcher area. Fig. 2 - 08 Adjust the air blast in accordance with the requirement by means of throttle 1 (screw 2).
  • Page 15: Positioner

    Adjustment Positioner Requirements 1. When sewing is interrupted, the machine should position itself 4 to 5 mm after the BDC of the needle bar. 2. After trimming, the machine should position itself at the TDC of the take-up lever. 3. When pressing the pedal backwards, the plunger of the cylinder should extend when the needle bar is 20 - 22 mm after the BDC.
  • Page 16: Mounting And Dismounting The Control Unit

    Adjustment Mounting and dismounting the control unit Fig. 2 - 09 In order to dismount the control unit, pull out plugs 1. Push in the mounting of the pneumatic connection and pull off hose 2. Loosen screw 3 and remove linkage 4 from the slot. Pull the ball heads of connecting rod 5 off the ball pins on the trimming and control units and remove connecting rod 5.
  • Page 17: Parameter Settings

    Adjustment Parameter settings With a Quick control-panel the following parameter settings can be effected via the display. Parameter list (only -900/97) 13.01 Group Parameter Meaning Standard value Adjustment range 0 - 9 Softstart for 1-9 starting stitches I = Neat seam due to short threads at beginning and end of seam II = Conventional thread-trimming...
  • Page 18 Adjustment Group Parameter Meaning Standard value Adjustment range I = Positioner adjustment with hand wheel II = Positioner adjustment with buttons „+“ and „-“ 0 - 239 Trimming signal for shifting the catcher forward at end of seam Stopping time at TDC (ms) of 0 - 640 take-up lever for reverse movement of catcher at start of...
  • Page 19 Notes...
  • Page 20 Aktiengesellschaft Postfach 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. e a a...

This manual is also suitable for:

560 series950 series

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