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Pfaff Industrial 1295 Adjustment Manual

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1295
1296
ADJUSTMENT MANUAL
This adjustment manual applies to machines
from the serial number 7 262 456 and software
version 0435/002 onwards.
296-12-19 310/002
Adjustment manual engl. 10.15

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  • Page 1 1295 1296 ADJUSTMENT MANUAL This adjustment manual applies to machines from the serial number 7 262 456 and software version 0435/002 onwards. 296-12-19 310/002 Adjustment manual engl. 10.15...
  • Page 2 Reprinting, reproduction and/or translation of PFAFF adjustment manuals (including parts thereof) is only permitted with our prior agreement and citation of the source. PFAFF Industriesysteme und Maschinen GmbH Hans-Geiger-Str. 12 - IG Nord D-67661 Kaiserslautern...

  • Page 3: Table Of Contents

    Safety clutch ........................17 .04.13 Needle thread tension release ..................... 18 .04.14 Thread check spring (with the PFAFF 1295 and 1296 without thread trimmer -900/56) ..19 .04.15 Thread check spring (with the PFAFF 1296 with thread trimmer -900/56) ......20 .04.16 Bobbin winder ........................
  • Page 4 Table of Contents Contents ..................Page .05.04 Tripping lever path ....................... 26 .05.05 Thread catcher drive rod ...................... 27 .05.06 Connecting rod (on with the PFAFF 1296) ................28 .05.07 Thread catcher height ......................29 .05.08 Thread catcher neutral position ................... 30 .05.09 Knife pressure ........................

  • Page 5: Adjustment

    The illustrations in this chapter show the PFAFF 1296 two-needle sewing ma- chine. Various settings must be carried out only on one side with the PFAFF 1295 sin- gle-needle sewing machine, i.e. in the right hook area. An indication is given in the respective chapters.

  • Page 6: Adjusting Basic Machine

    Adjustment Adjusting basic machine Feed dog position crossways to sewing direction .04.01 Rule The bottom transporter should have the same clearance on the right and left in the nee- dle plate cutout. Fig. 13 - 01 O Loosen both of the screws 1 and 2. O Adjust the rock shaft 3 according to rule 1.

  • Page 7: Feed Dog Position In Sewing Direction

    Adjustment Feed dog position in sewing direction .04.02 Rule The bottom transporter may not abut the needle plate cutout in its front and rear turning point with maximum stitch length regulation. Fig. 13 - 02 O Set the maximum stitch length. O Turn the rock shaft 1 according to the rule and tighten the screws 2.

  • Page 8: Feed Dog Height

    Adjustment Feed dog height .04.03 Rule The bottom transporter should protrude above the needle plate by the tooth height in its upper turning point at stitch length regulation "0". Fig. 13 - 03 O Set the stitch length to "0". O Move the feed dog to its upper turning point by turning the handwheel.

  • Page 9: Needle Position To Needle Hole

    Adjustment Needle position to needle hole .04.04 Rule The needle should pierce the middle of the needle hole exactly (with stitch length regulation "0"). Fig. 13 - 04 O Unscrew the top feed foot 1 and the presser foot 2. O Set the stitch length to "0"...

  • Page 10: Needle Height (Pre-Calibrating)

    Adjustment Needle height .04.05 (pre-calibrating) Rule When the needle bar is in b.d.c., the clearance between the needle bar and needle plate should be 15 mm. Fig. 13 - 05 O Adjust the needle bar 1 (screw 2) without twisting according to the rule.

  • Page 11: Bottom And Top Feed Sliding Movement

    Adjustment Bottom and top feed sliding movement .04.06 Rule The top and bottom feed should not move when the reverse-feed lever is activated with maximum stitch length regulation and when the needle bar is in b.d.c. Fig. 13 - 06 O Set the maximum stitch length.

  • Page 12: Bottom Transporter Stroke Movement (Only In Machine Versions With A P)

    Adjustment Bottom transporter stroke movement ( .04.07 only in machine versions with a P) Rule 1. The bottom transporter should be in its upper turning point when the needle bar is in b.d.c. 2. The bottom transporter and needle point should reach the surface of the needle plate at the same time with maximum stitch length regulation and when turning the handwheel.

  • Page 13: Hook-To-Needle Clearance, Needle Bar Rise, Needle Height And Needle Guard

    Adjustment Hook-to-needle clearance, needle bar rise, needle height and needle guard .04.08 (The setting of the left hook is omitted with the PFAFF 1255) Rule When the needle rise is positioned 2.0 mm after b.d.c. of the needle bar with version C and with stitch length regulation "3": 1.

  • Page 14: Top Feed Lift

    Adjustment Top feed lift .04.09 Rule The presser foot 1 and the top feed foot 2 should each lift 7.0 mm off the needle plate when turning the handwheel at the maximum top feed lift position and when the stitch length is set to "0".

  • Page 15: Top Feed Stroke Movement

    Adjustment Top feed stroke movement .04.10 Rule The presser foot 6 and the needle point should reach the needle plate at the same time at maximum top feed lift if the presser foot 1 rests on the needle plate. Fig. 13 - 10 O Loosen the screw 1.

  • Page 16: Bobbin Case Opener

    Adjustment Bobbin case opener .04.11 Rule The needle thread should not become jammed between the bobbin case opener 1 and the bobbin case base 3 or between the retaining lug 4 and the retaining dog of the needle plate (see arrow) Fig.

  • Page 17: Safety Clutch

    Adjustment Safety clutch .04.12 The safety clutch 4 is set ex works. If the thread jams, the safety clutch 4 dis- engages to avoid damage to the hooks. The process to engage the clutch is de- scribed below. Fig. 13 - 12 O Remove the thread jam.

  • Page 18: Needle Thread Tension Release

    Adjustment Needle thread tension release .04.13 Rule When the presser foot is raised, both tension discs should be at least 0.5 mm apart. The clearance of 0.5 mm is the minimum size and may be over 1 mm with thick types of yarn. 0.5 mm Fig.

  • Page 19: Thread Check Spring (With The Pfaff 1295 And 1296 Without Thread Trimmer -900/56)

    Adjustment Thread check spring .04.14 (with the PFAFF 1295 and PFAFF 1296 without thread trimmer -900/56) Rule The movement of the thread check spring 5 should be finished when the needle point punctures the material (spring deflection = approx. 7 mm).

  • Page 20: Thread Check Spring (With The Pfaff 1296 With Thread Trimmer -900/56)

    Adjustment Thread check spring .04.15 (with the PFAFF 1296 with thread trimmer -900/56) Rule The movement of the thread check springs 1 and 6 should be finished when the needle points puncture the material (spring deflection = approx. 7 mm). The length of the thread check spring deflection may deviate slightly upwards or downwards for reasons relating to the sewing technology.

  • Page 21: Bobbin Winder

    Adjustment Bobbin winder .04.16 Rule 1. When the bobbin winder is switched on, the bobbin winder spindle should be moved easily; when the bobbin winder is switched off, the friction wheel 5 must not touch the drive wheel 1. 2. The bobbin winder should switch off automatically when the fill amount is still around 1 mm from the edge of the bobbin.

  • Page 22: Presser Foot Pressure

    Adjustment Presser foot pressure .04.17 Rule The material should be transported properly even at top sewing speed. No pressure marks should appear on the material. Fig. 13 - 17 O Turn the screw 1 according to the rule.

  • Page 23: Adjusting Thread Trimmer -900/56

    Adjustment Adjusting thread trimmer -900/56 Engaging solenoid .05.01 Rule 1. The bracket 1 should be fastened in the centre of its range and parallel to the right edge of the mounting plate. 2. The core of the solenoid 3 should protrude approx. 4 mm out of the magnet housing when the thread trimmer is in the neutral position.

  • Page 24: Control Cam (Pre-Calibrating)

    Adjustment Control cam .05.02 (pre-calibrating) Rule 1. The control cam 1 should be positioned centrally to the bearing support cutout 5. 2. When the needle bar is at t.d.c., the screws 2 should be visible from the front and run parallel to the bed plate.

  • Page 25: Tripping Lever Spring Mechanism

    Adjustment Tripping lever spring mechanism .05.03 Rule It should be possible to push the tripping lever 3 approx. 1 mm in the direction of the bed plate when the thread trimmer is in the neutral position (spring mechanism). Fig. 13 - 20 O Turn the screw 1 (nut 2) according to the rule.

  • Page 26: Tripping Lever Path

    Adjustment Tripping lever path .05.04 Rule 1. The tripping lever bolt 6 should drop easily into the track of the control cam 7 when the engaging lever 5 is activated. 2. The tripping lever 6 should pass by the right side of the bracket 3 unimpeded and en- gage in the engaging lever 5 behind the stop 5.

  • Page 27: Thread Catcher Drive Rod

    PFAFF 1296. The thread catcher drive rod 1 should have a length of 128 mm with the PFAFF 1295. 2. There should be a clearance of approx. 1 mm between the piston 5 and the lever 6 when the thread trimmer is in the neutral position.

  • Page 28: Connecting Rod (On With The Pfaff 1296)

    Adjustment Connecting rod ( .05.06 only with the PFAFF 1296 Rule The length of the connecting rod 2 should correspond to the clearance between the shaft 3 and the shaft 4 when the thread trimmer is in the neutral position. Fig.

  • Page 29: Thread Catcher Height

    Adjustment Thread catcher height .05.07 Rule There should be a clearance of approx. 0.7 mm between the underside of the thread catcher 4 and the bobbin case sewing head 5. Fig. 13 - 24 O Loosen the screws 1 and 2. O Adjust the shaft according to the rule.

  • Page 30: Thread Catcher Neutral Position

    Adjustment Thread catcher neutral position .05.08 Rule There should be a clearance of approx. 4 mm between the tip of the thread catcher 3 and the cutting edge of the knife 4 when the thread trimmer is in the neutral position. 4 mm Fig.

  • Page 31: Knife Pressure

    Adjustment Knife pressure .05.09 Rule The knife 1 should rest gently on the edge of the thread catcher if the front edge of thread catcher 3 is halfway past the cutting edge of the knife. Fig. 13 - 26 O Adjust the knife 1 (screws 2) according to the rule.

  • Page 32: Bobbin Thread Clamp Spring

    Adjustment Bobbin thread clamp spring .05.10 Rule 1. Do not allow the thread catcher 4 to compress the bobbin thread clamp spring 3 at any stage. 2. The bobbin thread should be securely clamped after the cutting operation. 3. It should be easy to insert and remove the bobbin from the hook. Fig.

  • Page 33: Control Cam (Pre-Calibrating)

    Adjustment Control cam .05.11 (pre-calibrating) Rule The cutting movement should just have ended when the take-up lever is in its upper turn- ing point. Fig. 13 - 28 O Turn the control cam 1 (screws 2) according to the rule.

  • Page 34: Release Lever

    Adjustment Release lever .05.12 Rule There should be a clearance of approx. 1 mm between the tripping lever 3 and the release lever 5 when the bolt of the tripping lever 3 is dropped into the control cam track 4 and the needle bar is in b.d.c.

  • Page 35: Release Rod

    Adjustment Release rod .05.13 Rule 1. The bolt 3 should abut the lower end of the connecting rod 1 in the elongated hole when the presser foot rests on the needle plate. 2. The tension discs of the needle thread tension may not be separated from each other in this position.

  • Page 36: Adjusting Lifting Lever With Subclass -911/97

    Adjustment Adjusting lifting lever with subclass -911/97 Rule When the automatic presser foot lift is activated 1. The presser foot must lift 7 mm off the needle plate and 2. The tension discs of the thread tension must be 0.5 mm apart. Fig.

  • Page 37: Adjusting Lifting Lever Without Subclass -911/97

    Adjustment Adjusting lifting lever without subclass -911/97 Rule When the knee lever is activated 1. The presser foot must lift 7 mm off the needle plate and 2. The tension discs of the thread tension must be 0.5 mm apart. Fig.

  • Page 38: Parameter Settings

    Adjustment Parameter settings O The separate parameter list for the machine describes how to select the user level and change parameters (see chapter 1.1.2 Technician level). Internet update of control P40 CD O You need a dongle with the appropriate machine software to be able to perform a control update.

  • Page 39: Circuit Diagrams

    91-191 585-95 Circuit diagram Part 1 Version 30.07.15 Circuit Diagrams 91-191 585-95 PED-A PED-B PED-C PED-D n.c. PED-GEN P-ANA shield A PH B PH M1.1 IND. shield GN/YE Ground Sewing Motor Nähmotor n.c. n.c. n.c. +3,3V n.c. IN-EXT1 IN-EXT2 IN-EXT3 IN-EXT4 N.C.
  • Page 40 Circuit diagram 91-191 585-95 Version 30.07.15 Part 2 180° SYNC. shield Boot_PN BOOT X_IN RXBF- TXBF+ +15V RST_IN RST_PN RXBF+ TXBF- +15V +3,3V IN_ana1 0V_Logik 24V only inputs +24V stab. +24V magn. 24V power output trimmer output back tack output footlift output thread tension +24V magn.
  • Page 41 Notes...
  • Page 42 PFAFF Industriesysteme und Maschinen GmbH Hans-Geiger-Str. 12 - IG Nord D-67661 Kaiserslautern Tel.: +49 - 6301 3205 - 0 Fax: +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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1296

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