Related Manuals for Pfaff 1243
Summary of Contents for Pfaff 1243
- Page 1 1243 1244 ADJUSTMENT MANUAL This adjustment manual applies to machines from the serial number 7 262 020 and software version 0435/002 onwards. 296-12-19 313/002 adjustment Manual engl. 07.15...
- 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
Roller presser pressure ......................19 .04.15 Needle thread tension release ..................... 20 .04.16 Thread check spring (with the PFAFF 1243 and PFAFF 1244 without thread trimmer -900/56) . 21 .04.17 Thread check spring (with the PFAFF 1244 with thread trimmer -900/56) ....... 22 .04.18 Bobbin winder ........................ - Page 4 Connecting rod ........................30 .05.08 Control cam (pre-calibrating) ....................31 .05.09 Catch ............................ 32 .05.10 Connecting rod ( only with the PFAFF 1244) ............... 33 .05.11 Thread catcher height .......................34 .05.12 Knife ............................. 35 .05.13 Thread catcher reverse position ..................36 .05.14...
-
Page 5: Adjustment
The illustrations in this chapter show the PFAFF 1244 two-needle sewing machine. Various settings must be carried out only on one side with the PFAFF 1243 single-needle sewing machine, i.e. in the right hook area. Observe and comply with all instructions in the operating manual's chapter 1 Safety! In particular make sure that all safety covers are installed again correctly after making adjustments, see chapter 1.06 Operating manual... -
Page 6: Adjusting Basic Machine
Adjustment Adjusting basic machine Feed dog position .04.01 Rule 1. The feed dog should have the same clearance on the right and left in the needle plate cutout. 2. The feed dog should have the same clearance in the needle plate cutout in its front and rear turning point with maximum stitch length regulation. -
Page 7: Feed Dog Height
Adjustment Feed dog height .04.02 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 - 02 O Set the stitch length to "0". O Move the feed dog to its upper turning point by turning the handwheel. -
Page 8: Needle Position To Needle Hole
Adjustment Needle position to needle hole .04.03 Rule The needle should pierce the middle of the needle hole exactly (with stitch length regulation "0"). Fig. 13 - 03 O Set the stitch length to "0" and move the needle bar to t.d.c. O Loosen the screws 1, 2 and 3. -
Page 9: Needle Height (Pre-Calibrating)
Adjustment Needle height .04.04 (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 - 04 O Adjust the needle bar 1 ( screw 2 ) without twisting according to the rule. -
Page 10: Feeding Motion
Adjustment Feeding motion .04.05 Rule The feed dog should not move when the reverse-feed lever is activated with maximum stitch length regulation and when the needle bar is in t.d.c. Fig. 13 - 05 O Set the maximum stitch length. O Loosen the screws 1 until the eccentric 2 is difficult to turn on the shaft. -
Page 11: Feed Lifting Motion
Adjustment Feed lifting motion .04.06 Rule 1. The bottom transporter should be in its upper turning point when the needle bar is in b.d.c. 2. The tooth tips of the feed dog should be at the same level as the surface of the needle plate with maximum stitch length regulation when the needle points pierce the middle of the needle holes. -
Page 12: Home Position Of Roller Presser Drive
Adjustment Home position of roller presser drive .04.07 Rule 1. The clamping surfaces of the lever 1 in the front turning point position should be horizontal with maximum stitch length regulation. 2. The lever 3 should be in the centre of the cutout in the lever 1. 3. -
Page 13: Synchronisation Of Roller Presser And Feed Dog
Adjustment Synchronisation of roller presser and feed dog .04.08 Rule The feed motion of the roller presser and feed dog must be equal. Fig. 13 - 08 O Turn the lever 1 ( screw 2 ) according to the rule. -
Page 14: Release Of Roller Presser When Reverse Sewing
Adjustment Release of roller presser when reverse sewing .04.09 Rule 1. The roller presser should be released when sewing in reverse ( cylinder 8 activated ). 2. When the roller presser and feed dog are lowered, there should be a clearance of 0.5 mm between the c-lock pin 6 and the bearing 7 when the cylinder 8 is not activated. -
Page 15: Hook-To-Needle Clearance, Needle Bar Rise, Needle Height And Needle Guard
O Adjust the needle height according to rule 2. O Align the needle guard 5 according to rule 3. With the PFAFF 1244 it is important to readjust the position of the connecting rod to the thread trimmer after changing the needle gauge (see chapter... -
Page 16: Bobbin Lifter
Adjustment Bobbin lifter .04.11 (make this adjustment on both bobbin lifters with the Pfaff 1244). Rule The needle thread should not become jammed between the bobbin lifter 1 and the bobbin case base 3 or between the retaining lug 4 and the retaining dog of the needle plate. -
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 disengages to avoid damage to the hooks. The process to engage the clutch is described below. Fig. 13 - 12 O Remove the thread jam. -
Page 18: Clearance Between Roller Presser And Needle Plate
Adjustment Clearance between roller presser and needle plate .04.13 Rule The clearance from the raised roller presser to the needle plate should be 5 mm in machines with a roller presser. Fig. 13 - 13 O Raise the roller presser with the hand lever. O Reduce the pressure on the roller presser ( screw 1 ). -
Page 19: Roller Presser Pressure
Adjustment Roller presser pressure .04.14 Rule The material should be transported properly even at top sewing speed. Fig. 13 - 14 O Turn the screw 1 according to the rule. The pressure can also be increased with the screw 2 in machine versions with a D. -
Page 20: Needle Thread Tension Release
Adjustment Needle thread tension release .04.15 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 21: Thread Check Spring (With The Pfaff 1243 And Pfaff 1244 Without Thread Trimmer -900/56)
Adjustment Thread check spring .04.16 (with the PFAFF 1243 and PFAFF 1244 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 22: Thread Check Spring (With The Pfaff 1244 With Thread Trimmer -900/56)
Adjustment Thread check spring .04.17 (with the PFAFF 1244 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). -
Page 23: Bobbin Winder
Adjustment Bobbin winder .04.18 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 24: Adjusting Thread Trimmer -900/56
Adjustment Adjusting thread trimmer -900/56 Control cam .05.01 ( pre-calibrating ) Rule 1. The bearing surface of the control cam 5 should be positioned centrally to the pawl 8 on the side. 2. When the thread lever is at t.d.c., the start of the largest eccentricity of the bear- ing surface ( in the direction of rotation ) should be under the tip of the pawl 8. -
Page 25: Tripping Lever
Adjustment Tripping lever .05.02 Rule The bevelled bolt of the tripping lever 6 ( see arrow ) should drop easily into the track of the control cam 7 when the engaging lever 8 is activated in the needle rise position. Fig. -
Page 26: Pawl
Adjustment Pawl .05.03 Rule There should be a clearance of 0.3 mm between the largest eccentricity of the control cam 1 and the pawl 2 when the thread trimmer is in the neutral position. 0.3 mm Fig. 13 - 21 O Position the control cam 1 with its largest eccentricity under the pawl 2 by turning the handwheel. -
Page 27: Engaging Solenoid
Adjustment Engaging solenoid .05.04 Rule There should be a clearance of 0.3 mm between the engaging lever 2 and the pawl 3 in the needle rise position and when the engaging solenoid 5 is activated. Fig. 13 - 22 O Move the machine to the needle rise position by turning the handwheel. O Loosen the screw 1 until the engaging solenoid is hard to push. -
Page 28: Release Cam
Adjustment Release cam .05.05 Rule There should be a clearance of approx. 0.3 mm between the tripping lever bolt and the bottom of the cam track in the needle rise position and when the engaging lever 4 is dropped in place. 0.3 mm Fig. -
Page 29: Engaging Lever
Adjustment Engaging lever .05.06 Rule When the needle bar is at t.d.c. and the tripping lever 3 is in the basic position, there should be a clearance of approx. 0.3 mm between the bolt 4 and the outside diameter of the control cam 5. -
Page 30: Connecting Rod
Adjustment Connecting rod .05.07 Rule The lever 6 should lift off the stop 7 when the shaft 9 starts to move with a sliding motion. Fig. 13 - 25 O Fasten the ball head 1 to the tripping lever 3 with the screw 2. O Loosen the nuts 4 (right and left-hand thread). -
Page 31: Control Cam (Pre-Calibrating)
Adjustment Control cam .05.08 (pre-calibrating) Rule The movement of the thread catcher 5 should start when the tripping lever 3 is dropped in place and the point of the needle coming from b.d.c. is positioned 12 mm above the needle plate. Fig. -
Page 32: Catch
Adjustment Catch .05.09 Rule There should be a clearance of approx. 5 mm between the catch 1 and the tripping lever 6 when the thread trimmer is in the neutral position. 5 mm Fig. 13 - 27 O Gently secure the catch 1 and the cover plate 2 with the screws 3. O Move the catch 1 to the stop in the direction of the arrow and move it sideways according to the rule. -
Page 33: Connecting Rod ( Only With The Pfaff 1244)
Adjustment Connecting rod .05.10 ( only with the PFAFF 1244) 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. -
Page 34: Thread Catcher Height
Adjustment Thread catcher height .05.11 (make this adjustment on both thread catchers with the PFAFF 1244) Rule If the thread catcher 2 is pushed forward by hand when the thread lever is at t.d.c., the lower thread catcher point should be 0.1 mm above the back of the hook 4. -
Page 35: Knife
Adjustment Knife .05.12 (make this adjustment on both knives with the PFAFF 1244) Rule 1. The elongated hole of the knife 3 should run parallel to the knife carrier 5; the knife should not rest on the metal edge ( see arrow ). -
Page 36: Thread Catcher Reverse Position
Thread catcher reverse position .05.13 (make this adjustment on both thread catchers with the PFAFF 1244) Rule The back edge of the thread catcher 3 should be flush with the cutting edge of the knife 4 when it is in the front turning point ( see arrow). -
Page 37: Bobbin Thread Clamp Spring
Adjustment Bobbin thread clamp spring .05.14 (make this adjustment on both clamp springs with the PFAFF 1244) Rule There should be a clearance of 0.3 mm between the clamp spring 5 and the under- side of the thread catcher 4. -
Page 38: Tension Release Lever
Adjustment Tension release lever .05.15 Rule 1. There should be a clearance of approx. 7 mm between the left edge of the release lever 8 and the housing 9 when the thread trimmer is in the neutral position and the roller presser is raised. -
Page 39: 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 roller presser must lift 5 mm off the needle plate and 2. The tension discs of the thread tension must be 0.5 mm apart. Fig. -
Page 40: Adjusting Lifting Lever Without Subclass -911/97
Adjustment Adjusting lifting lever without subclass -911/97 Rule When the knee lever is activated 1. The roller presser must lift 5 mm off the needle plate and 2. The tension discs of the thread tension must be 0.5 mm apart. Fig. -
Page 41: Parameter Settings
O The "DongleCopy" PC tool is needed to upload software onto the dongle. A description of how to perform an Internet update of control P40 CD as well as the "DongleCopy" PC tool can be downloaded from the Internet address https://partnerweb.pfaff-industrial.com/ . -
Page 42: Circuit Diagrams
91-191 585-95 Circuit diagram Part 1 Version 30/07/2015 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 43: Circuit Diagram
Circuit diagram 91-191 585-95 Version 30/07/2015 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 44 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...