Table of Contents
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Table of Contents
Related Manuals for Pfaff 242
Summary of Contents for Pfaff 242
- Page 1 Service manual 1242 1243 1244 296-12-18 166 Betriebsanleitung engl. 03.99...
- Page 2 This Instruction manual is valid for all models and subclasses listed in the chapter „Specifications“. The reprinting, copying or translation of PFAFF Instruction Manuals, whether in whole or in part, is only permitted with our previous permission and with written reference to the source.
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Page 3: Table Of Contents
.01.02 Max. speeds, PFAFF 242 ................... 3 - 2 .01.03 Max. speeds, PFAFF 1242 ..................3 - 2 PFAFF 244 / PFAFF 1243 / PFAFF 1244 ..............3 - 3 .02.01 Models and subclasses ....................3 - 4 .02.02 Max. speeds ......................3 - 4 Machine disposal ..................... -
Page 4: Contents
Removing /inserting the bobbin case ................. 9 - 4 Threading the bobbin case / adjusting the thread tension .......... 9 - 4 Threading the needle thread / adjusting the needle thread tension (PFAFF 1243) ..9 - 5 Threading the needle thread / adjusting the needle thread tension (PFAFF 242 and PFAFF .................... - Page 5 Contents Contents ................Chapter - Page .04.07 Driving motion of the feed dog (PFAFF 244, 1243 and 1244) ........11 - 8 .04.08 Lifting motion of the feed dog (PFAFF 242 and 1242) ..........11 - 9 .04.09 Lifting motion of the feed dog (PFAFF 244, 1243 and 1244) ........11 - 10 .04.10...
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Page 6: Safety
Safety Safety Regulations This machine is constructed in accordance with the European regulations indicated in the conformity and manufacturer's declarations. In addition to this instruction manual, please also observe all generally accepted, statutory and other legal requirements, including those of the user's country, and the applicable pol- lution control regulations! The valid regulations of the regional social insurance society for occupational accidents or other supervisory authorities are to be strictly adhered to! -
Page 7: Safety Symbols
The user must ensure that none of the safety devices are removed nor put out of work- ing order. The user must ensure that only authorized persons operate and work on the machine. For further information please refer to your PFAFF agency. 1 - 2... -
Page 8: Operating And Technical Staff
Safety Notes for operating and technical staff Operating staff .05.01 Operating staff are the persons responsible for setting up, operating and cleaning the mach- ine and for removing any disturbances in the sewing area. The operating staff are obliged to observe the following points, and must: always observe the notes on safety in this instruction manual! avoid using any working methods which adversely effect the safety of the machine! avoid wearing loose-fitting clothing or jewelry such as necklaces or rings! -
Page 9: Danger Warnings
Safety Danger warnings A working area of 1 metre is to be kept free both in front of and behind the machine while it is in operation, so that it is always easily accessible. Never reach into the sewing area while sewing! Danger of injury by the needle! Never leave objects on the table while adjusting the machine settings! Objects can become trapped or be hurled out! Danger of injury! On mechanically activated clutch motors without an actuating lock, wait until... -
Page 10: Proper Use
Proper use Proper use The PFAFF 242 PFAFF 242 PFAFF 242 PFAFF 242 PFAFF 242 is a two-needle lockstitch sewing machine with needle feed and vertical sewing hook. PFAFF 1242 PFAFF 1242 The PFAFF 1242 PFAFF 1242 PFAFF 1242 is a two-needle lockstitch sewing machine with needle feed and large vertical sewing hook. -
Page 11: Specifications
Air consumption: ..................~0.8 l/work cycle Working noise level: Emission at workplace PFAFF 242 at a speed of 2300 spm: ..............83 dB(A) PFAFF 1242 at a speed of 1800 spm: ..............80 dB(A) Noise measurement in accordance with DIN 45 635-48-A-1... -
Page 12: Models And Subclasses
Specifications Models and subclasses .01.01 Model B: ............For processing medium-weight materials Model C (only PFAFF 1242): ........ For processing medium-heavy materials Additional equipment: Subclass -900/56 ..................Thread trimmer Subclass -911/97 ...... Automatic presser-foot lifter with backtacking mechanism Max. speeds of the PFAFF 242 .01.02... -
Page 13: Pfaff 244 / Pfaff 1243 / Pfaff 1244
Air consumption: ..................~0.8 l/work cycle Working noise level: Emission at workplace PFAFF 244 at a speed of 2000 spm: ..............81 dB(A) PFAFF 1243 at a speed of 1500 spm: ..............79 dB(A) PFAFF 1244 at a spped of 1400 spm: ..............79 dB(A) -
Page 14: Models And Subclasses
.02.01 PFAFF 244 Model A: ................For processing light materials Model B: ............For processing medium-weight materials PFAFF 1243 und PFAFF 1244 Model C and C/D: ..........For processing medium-heavy materials Model D: ................For processing heavy materials Additional equipment: Subclass -750/04 ................... -
Page 15: Disposal Of Machine
Disposal of Machine Disposal of Machine Proper disposal of the machine is the responsibility of the customer. The materials used for the machine are steel, aluminium, brass and various plastic mat- erials. The electrical equipment comprises plastic materials and copper. The machine is to be disposed of according to the locally valid pollution control regula- tions;... -
Page 16: Transportation, Packing And Storage
Transportation, packing and storage Transportation, packing and storage Transportation to customer's premises Within the Federal Republic of Germany, complete machines (with table and motor) are delivered without packing. Machines without table (only sewing heads) and machines intended for exports are packed. Transportation inside the customer's premises The manufacturer cannot be made liable for transportation inside the customer's premises nor to other operating locations. -
Page 17: Explanation Of Symbols
Explanation of symbols Explanation of symbols In this instruction manual, work to be carried out or important information is accentuated by simbols. These symbols have the following meanings: Note, information Cleaning, care Lubrication Maintenance, repairs, adjustment, service work (only to be carried out by technical staff) 6 - 1... -
Page 18: Controls
Controls Controls On/off switch Turn the machine on and off by turning the on/off switch 1. The switch in the illustration can be found on machines with Quick motors. When other motors are used, other switches may be fitted. Fig. 7 - 01 Pedal (on machines without automatic backtacking mechanism and presser foot lifter -911/97) -
Page 19: Pedal (On Machines With Automatic Backtacking Mechanism And Presser Foot Lifter -911/97)
Controls Pedal (on machines with automatic backtacking mechanism and presser foot lifter -911/97) = Neutral position +1 = Sew -1 = Lift presser foot or roller presser -2 = Trim thread (on machines with thread trimmer -900/56) For other pedal functions see the motor instruction manual. -
Page 20: Knee Lever (On Machines Without Automatic Backtacking Mechanism And Presser Foot Lifter -911/97)
Controls Knee lever (on machines without automatic backtacking mechanism and presser foot lifter -911/97) The presser foot or roller presser is raised by operating the knee lever 1. Fig. 7 - 05 Key on the machine head (for machines with automatic backtacking mechanism and presser foot lifter -911/97) Switch to reverse sewing by pressing key 1 while sewing. -
Page 21: Lever For Lifting The Presser Foot / Roller Presser
Lever for lifting the presser foot / roller presser The presser foot/roller presser is lifted by raising lever 1. Fig. 7-07 shows a PFAFF 1243. Fig. 7 - 07 Feed regulator and reverse sewing lever Adjust the stitch length by turning the knurled nut on lever 1. -
Page 22: Feed Regulator (On Machines With Automatic Backtacking Mechanism And Presser Foot Lifter -911/97)
Controls Feed regulator (on machines with automatic backtacking mechanism and presser foot lifter -911/97) The forward stitch length is set by turning the knurled screw 1. The reverse stitch length is set by turning the knurled screw 2. You can set the length of the reverse stitch as long as required, independent of the foward stitch. -
Page 23: Installation
Installation and commissioning Installation and commisioning The machine must only be installed and comissioned by qualified personnel! All relevant safety regulations are to be observed! If the machine is delivered without a table, it must be ensured that the stand and the table top which you intend to use can hold the weight of the machine. -
Page 24: Adjusting The V-Belt Tension
Installation and commissioning Adjusting the V-belt tension .01.02 Loosen nuts 1. Tighten the V-belt with belt take-up hangar 2. Tighten nuts 2. Fig. 8-02 shows a Quick motor. If another motor is used, proceed as described in the motor’s instruction manual. Fig. -
Page 25: Fitting The Tilt Lock
Installation and commissioning Mounting the lower V-belt guard .01.04 Align belt guard 1 in such a way that both the motor pulley and the V-belt run freely. Fig. 8-04 shows a Quick motor. If another motor is used, proceed as described in the motor’s instruction manual. -
Page 26: Fitting The Synchronizer
Installation and commissioning Fitting the synchronizer .01.06 Slide synchronizer 1 onto the shaft. Slightly tighten screws 2. Insert plug of the synchronizer into the control box. Adjust synchronizer (see Chapter 11.05.16 Adjusting the synchronizer). Fig. 8 - 06 Fitting the reel stand .01.07 Fitting the reel stand as shown in Fig. -
Page 27: Switching The Machine On / Off
Installation and commissioning Initial operation Check the machine, in particular the electrical leads and pneumatic connection tubes, for any damage. Remove pin 1 from the oil reservoir 2. The pin 1 serves only to protect the machine from damage during transportation and must not be used during sewing. -
Page 28: Setting Up
Before all preparation work, the machine is to be switched off at the on/off switch or disconnected from the electricity supply by removing the plug from the mains! Inserting the needles in the PFAFF 242 and PFAFF 1242 Turn the machine off! Danger of injury if the machine... -
Page 29: Inserting The Needle In The Pfaff 1243
The selection of the needle depends on the machine model and the materials and threads being used (see Chapter 3 Specifications). Inserting the needles in the PFAFF 244 and PFAFF 1244 Turn the machine off! Danger of injury if the machine is started accidentally! Use only system 134 needles. -
Page 30: Winding The Bobbin Thread, Adjusting The Thread Tension
Setting up Winding the bobbin thread, adjusting the thread tension Fig. 9 - 04 Place an empty bobbin 1 onto bobbin spindle 2. Thread the bobbin in accordance with Fig. 9-04 and wind it clockwise around the bobbin 1 a few times. Engage on the bobbin winder by pressing bobbin winder shaft 2 and lever 3 at the same time. -
Page 31: Removing /Inserting The Bobbin Case
Setting up 9.05 Removing /inserting the bobbin case Turn the machine off! Danger of injury if the machine is started accidentally! Removing the bobbin case: Raise take-up lever as far as possible. Open the cover of the hook compartment, raise latch 1 and remove bobbin case 2. -
Page 32: Threading The Needle Thread / Adjusting The Needle Thread Tension (Pfaff 1243)
Setting up Threading the needle thread / adjusting the needle thread tension (PFAFF 1243) Fig. 9 - 07 Turn the machine off! Danger of injury if the machine is started accidentally! Thread the needle thread as shown in Fig. 9-07. Take care that the needle is threaded from the left. -
Page 33: Threading The Needle Thread / Adjusting The Needle Thread Tension
Setting up Threading the needle thread / adjusting the needle thread tension (PFAFF 242 and PFAFF 1242) Fig. 9 - 08 Turn the machine off! Danger of injury if the machine is started accidentally! Thread the needle thread as shown in Fig. 9-08. Take care that the right needle is threaded from the left and the left needle from the right. -
Page 34: Pfaff 244 And Pfaff 1244
Setting up Threading the needle thread / adjusting the needle thread tension (PFAFF 244 and PFAFF 1244) Fig. 9 - 09 Turn the machine off! Danger of injury if the machine is started accidentally! Thread the needle thread as shown in Fig. 9-09. Take care that the right needle is threaded from the left and the left needle from the right. -
Page 35: Care And Maintenance
Care and maintenance Care and maintenance Servicing and maintenance intervals Clean the hook compartment ....daily, several times if in continuous operation Check the air pressure ................daily, before use Clean the water container of the air filter/regulator ........ daily, before use Check the hook oil-container ................. -
Page 36: General Lubrication
/s at 40º C and a density of 0.865 g/cm at 15º C! We recommend PFAFF sewing machine oil, Order-No. 280-1-120 144. Using both hands, set the machine into an upright position! Danger of crushing between the machine and table top! -
Page 37: Lubricating The Hook
Only use oil with a mean viscosity of 22.0 mm /s at 40º C and a density of 0.865 g/cm 15º C! We recommend PFAFF sewing machine oil. Order-No. 280-1-120 144. Fig. 10 - 03 Setting the machine upright Setting the machine upright... -
Page 38: Lubricating The Needle Head Parts
Only use oil with a mean viscosity of 22.0 mm /s at 40º C and a density of 0.865 g/cm at 15º C! We recommend PFAFF sewing machine oil. Order-No. 280-1-120 144. Fig. 10 - 04 Checking and adjusting the air pressure Before each use of the machine, check the air pressure on gauge 1. -
Page 39: Emptying / Cleaning The Water Container Of The Air Filter
Care and maintenance Emptying/cleaning the water container of the air filter/regulator Turn the machine off. Remove the compressed air hose from the air filter Emptying the water container The water container 1 empties itself automatically when the compressed-air hose is removed from the air filter/ regulator. -
Page 40: Adjustment
The illustrations in this section show two-needle machines. For the PFAFF 1243 PFAFF 1243 PFAFF 1243 PFAFF 1243 single-needle machine, various adjustments only have to PFAFF 1243 be made on one side, i.e. in the right hook compartment. Notes on adjusting... -
Page 41: Adjusting The Basic Machine
Adjustment Adjusting the basic machine Positioning the feed dog .04.01 Requirement 1. The feed dog must be the same distance from the left and the right side of the needle- plate cutout. 2. When the longest stitch length is set, the front and rear point of reversal of the feed dog in the needle-plate cutout must be equal. -
Page 42: Height Of The Feed Dog
Adjustment Height of the feed dog .04.02 Requirement With the stitch length set at „ 0“ , the bottom feed dog must protrude over the needle plate as high as the teeth when at its top point of reversal. Fig. 11 - 02 Set stitch length „... -
Page 43: Pre-Adjusting The Needle Height
Adjustment Pre-adjusting the needle height .04.03 Requirement With the needle bar at BDC, the distance between the needle bar and the needle plate must be 15 mm. Fig. 11 - 03 Position needle bar 1 (screw 2) in accordance with the requirement, without twisting it. 11 - 4... -
Page 44: Centering The Needle In The Needle Hole
Adjustment Centering the needle in the needle hole (for the PFAFF 242 and 1242) .04.04 Requirement With the stitch length set at „ 0“ , the needle must enter the needle hole exactly in the middle. Fig. 11 - 04 Set stitch length „... - Page 45 Adjustment Centering the needle in the needle hole (for the PFAFF 244, 1243 and 1244) .04.05 Requirement With the stitch length set at „0“, the needle must enter the needle hole exactly in the middle. Fig. 11 - 05 Loosen screws 1, 2 and 3.
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Page 46: Driving Motion Of The Feed Dog (Pfaff 242 And 1242)
Adjustment Driving motion of the feed dog (for PFAFF 242 and 1242) .04.06 Requirement With the longest stitch set and the needle bar at its BDC, the feed dog should not move when the reverse-feed lever is operated. Fig. 11 - 06 Set the longest stitch. -
Page 47: Driving Motion Of The Feed Dog (Pfaff 244, 1243 And 1244)
Adjustment Driving motion of the feed dog (for PFAFF 244, 1243 and 1244) .04.07 Requirement With the longest stitch set and the needle bar at its TDC, the feed dog should not move when the reverse-feed lever is operated. Fig. 11 - 07 Set the longest stitch. -
Page 48: Lifting Motion Of The Feed Dog (Pfaff 242 And 1242)
Adjustment Lifting motion of the feed dog (for PFAFF 242 and 1242) .04.08 Requirement 1. With the needle set at its BDC, the feed dog must be at its top point of reversal. 2. With the longest stitch set, the bottom feed dog must reach the top surface of the needle plate at the same time as the needle point when the balance wheel is turned. -
Page 49: Lifting Motion Of The Feed Dog (Pfaff 244, 1243 And 1244)
Adjustment Lifting motion of the feed dog (for PFAFF 244, 1243 and 1244) .04.09 Requirement 1. With the needle set at its TDC, the feed dog must be at its top point of reversal. 2. With the longest stitch set, the teeth of the feed dog must be at the same height as the surface of the needle plate, when the needle point enters the needle holes. -
Page 50: Basic Position Of The Roller Presser Drive (Only On Machines With Subcl. -4/01)
Adjustment Basic position of the roller presser drive .04.10 (only in machines with subcl. -4/01) Requirement 1. With the longest stitch setting the clamping surfaces of lever 1 must be horizontal, when these are at their front point of reversal. 2. -
Page 51: Synchronizing The Roller Presser And Feed Dog (Only On Machines With Subcl. -4/01)
Adjustment Synchronizing the roller presser and feed dog .04.11 (only on machines with subcl. -4/01) Requirement The feed strokes of the roller presser and the feed dog must be equal. Fig. 11 - 11 Adjust lever 1 (screw 2) in accordance with the requirement. 11 - 12... -
Page 52: Releasing The Roller Presser For Reverse Sewing (Only On Machines With Subcl. -4/01)
Adjustment Releasing the roller presser for reverse sewing .04.12 (only on machines with subcl. -4/01) Requirement 1. For reverse sewing, the roller presser must be released (extended cylinder 8). 2. When the roller presser and feed dog are lowered, the clearance between tension pin 6 and bearing 7 should be 0.5 mm, if cylinder 8 has not been operated. -
Page 53: Hook-To-Needle Clearance, Needle Rise, Needle Height And Needle Guard
Adjustment Hook-to-needle clearance, needle rise, needle height and needle guard .04.13 Requirement In the needle rise position (see table) and with the stitch length setting „ 3“ , the following applies: 1. The hook point must be at the "needle centre" and clear the needle by 0.05 - 0.1 mm 0.05 - 0.1 mm 0.05 - 0.1 mm... - Page 54 Adjustment 0.05 - 0.1 mm Fig. 11 - 13 Position the adjustable clamp against the feeler gauge and screw it tight. Remove the feeler gauge and turn the balance wheel in its direction of rotation until the adjustable clamp is touching the needle bar bearing. Move hook bearing 4 in accordance with requirement 1.
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Page 55: Bobbin-Case Opener
Adjustment Bobbin-case opener .04.14 (On the PFAFF 244 and 1244 this adjustment has to be carried out on both bobbin case openers) Requirement The needle thread must not be clamped between the bobbin-case opener 1 and the bobbin-case base 3, nor may it be clamped between projection 4 and the retaining trip of the needle plate. - Page 56 Adjustment Safety coupling .04.15 The safety coupling 4 is set by the manufacturer. If the thread jams, the safety coupling 4 disengages to prevent damage to the hook. A description of how to re-engage the coupling in follows. Fig. 11 - 15 Remove the jammed thread.
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Page 57: Clearance Between Presser Foot / Roller Presser And Needle Plate
Adjustment Clearance between presser foot / roller presser and needle plate .04.16 Requirement 1. On machines with a presser foot the distance between the raised presser foot and the needle plate must be 8.5 mm..1. On machines with a roller presser the distance between the raised roller presser and the needle plate must be 5 mm. -
Page 58: Pressure Of Presser Foot / Roller Presser
Adjustment Pressure of presser foot / roller presser .04.17 Requirement The material must be fed reliably even at top sewingspeed. Fig. 11 - 17 Turn screw 1 in accordance with the requirement. On Model D machines the pressure can be increased additionally via screw 2. 11 - 19... -
Page 59: Needle Thread Tension Release
Adjustment Needle thread tension release .04.18 Requirement With the presser foot / roller presser raised, the two tension discs 4 4 4 4 4 must be at least 0.5 mm 0.5 mm 0.5 mm 0.5 mm 0.5 mm apart. 0.5 mm Fig. -
Page 60: Thread Check Spring (Pfaff 1243 And On Machines Without -900/56)
Adjustment Thread check spring (PFAFF 1243 and on machines without -900/56) .04.19 Requirement The motion of the thread check spring 5 5 5 5 5 should have ceased when the needle point enters the material ( = approx. 7 mm... -
Page 61: Thread Check Spring (On Two-Needle Machines With - 900/56)
Adjustment Thread check spring (on two-needle machines with - 900/56) .04.20 Requirement The motion of the thread check springs 1 and 6 should have ceased when the needle points enter the material ( = approx. 7 mm spring stroke). 8 10 Fig. -
Page 62: Bobbin Winder
Adjustment Bobbin winder .04.21 Requirement 1. When the bobbin winder is switched on, the friction wheel 5 must engage reliably. 2. When the bobbin winder is switched off, the friction wheel 5 must not touch the drive wheel 1. 3. The bobbin winder must switch off automatically when the thread level is approx. 1 mm from the edge of the bobbin. -
Page 63: Adjusting The Thread Trimmer -900/56
Adjustment Adjusting the thread trimmer -900/56 Pre-adjusting the control cam 05.01 Requirement 1. The bearingsurface of control cam 5 must be laterally in the middle of pawl 8. 2. With the take-up lever at its TDC, the beginning of the largest eccentricity of the bearing surface (in the direction of rotation) must be underneath the point of pawl 8. -
Page 64: Tripping Lever
Adjustment Tripping lever .05.02 Requirement In needle rise position, the flattened pin of control lever 6 (see arrow) must drop easily into the track of control cam 7 when activating lever 8 is activated. Fig. 11 - 23 Screw out screw 1 and swing out connecting rod 2. Loosen screws 3 and 4. -
Page 65: Pawl
Adjustment Pawl .05.03 Requirement With the thread-trimming mechanism in resting position, there must be a distance of 0.3 mm between the largest eccentricity of control cam 1 and pawl 2. 0.3 mm Fig. 11 - 24 Position the largest eccentrictiy of control cam 1 underneath pawl 2 by turning the balance wheel. -
Page 66: Engaging Solenoid
Adjustment Engaging solenoid .05.04 Requirement In needle rise position and with engaging solenoid 5 activated, there must be a distance of 0.3 mm between engaging lever 2 and pawl 3. Fig. 11 - 25 Bring the machine to needle rise position by turning the balance wheel. Loosen screw 1 until the engaging solenoid can be turned with difficulty. -
Page 67: Release Trip
Adjustment Release trip .05.05 Requirement In needle rise position and with control lever 4 engaged, there must be a clearance of approx. 0.3 mm between the bolt of the control lever and the base of the cam track. 0.3 mm Fig. -
Page 68: Engaging Lever
Adjustment Engaging lever .05.06 Requirement With the needle bar at TDC and with control lever 3 at starting position, there must be a clearance of approx. 0.3 mm between bolt 4 and the outer diameter of control cam 5. Fig. 11 - 27 Bring the needle bar to TDC by turning the balance wheel. -
Page 69: Linkage Rod
Adjustment Linkage rod .05.07 Requirement When shaft 8 begins its pushing motion, lever 6 must simultaneously lift from stop 7. Fig. 11 - 28 Affix ball joint 1 to control lever 3 using screw 2. Loosen nuts 4 (right and left handed thread). Bring the machine to needle rise position by turning the balance wheel and activate engaging lever 5. -
Page 70: Final Adjustment Of The Control Cam
Adjustment Final adjustment of the control cam .05.08 Requirement When control lever 3 is engaged and the needle point is 12 mm above the needle plate coming from its BDC, the motion of the thread catcher 5 must begin. Fig. 11 - 29 Bring the take-up lever to just past its TDC by turning the balance wheel and loosen the accessible screws on control cam 1. -
Page 71: Catch
Adjustment Catch .05.09 Requirement With the thread trimming mechanism in resting position, there must be a distance of approx. 5 mm between catch 1 and control lever 6. 5 mm Fig. 11 - 30 Lightly affix catch 1 and cover plate 2 using screws 3. Move catch 1 as far as possible in the direction of the arrow and then move it laterally in accordance with the requirement. - Page 72 Adjustment Thread trimmer linkage .05.10 (only for two-needle machines) Requirement With the thread trimming mechanism in resting position, the length of the linkage rod 2 should be equal to the distance between shaft 3 and shaft 4. Fig. 11 - 31 Loosen nuts 1 (right- and left-hand thread) .when the thread-trimming mechanism is in the off-position.
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Page 73: Thread-Catcher Height
Thread-catcher height .05.11 (On the PFAFF 242, 244, 1242 and 1244 this adjustment has to be carried out on both thread catchers) Requirement When thread catcher 2 2 2 2 2 is pushed forwards manually with the take-up lever at its TDC, the lower point of the thread catcher must pass 1 mm over the back of hook 4. -
Page 74: Knife
Adjustment Knife .05.12 Requirement 1. The elongated hole of knife 3 must be parallel to knife carrier 5 and the knife must not be touching the casting (see arrow). 2. When the point of needle catcher 4 protrudes approx. 3 mm over the cutting edge of the knife, knife 3 must just touch thread catcher 4. -
Page 75: Thread-Catcher Reverse Position
Thread catcher reverse position .05.13 (On the PFAFF 242, 244, 1242 and 1244 this adjustment has to be carried out on both threa catchers) Requirement At the front point of reversal of thread catcher 3, its rear edge must be flush with the cutting edge of knife 4 (see arrow). -
Page 76: Bobbin-Thread Clamp Spring
8 mm (on PFAFF 242 and 244 8 mm on PFAFF 242 and 244 on PFAFF 242 and 244 on PFAFF 242 and 244) between the inner edge of clamp spring 5 and guide sleeve 7. 8 mm 8 mm on PFAFF 242 and 244 4. - Page 77 Adjustment PFAFF 242 / 244 PFAFF 1242 / 1243 / 1244 Fig. 11 - 36 Align clamp spring 5 (screws 6) in the elongated hole in accordance with requirement 2 and 3 - if necessary carrier 1 (screws 2) as well.
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Page 78: Tension Release Bar
Adjustment Tension release bar .05.15 Requirement 1. With the thread-trimming mechanism in resting position and the presser foot/roller presser raised, there must be a distance of approx. 7 mm between the left edge of release bar 8 and housing 9. 2. - Page 79 Adjustment 7 mm Fig. 11 - 38 By turning the balance wheel further, position the point of thread catcher 5 at the same height as the edge of rear stop trip 6 of the needle plate and press release bar 8 to the left in accordance with requirement 2 using retaining collar 7.
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Page 80: Adjusting The Synchronizer
Adjustment Adjusting the synchronizer .05.16 Requirement When the sewing action is interrupted, the machine must position at approx. 4 mm after the BDC of the needle bar. After trimming the thread, the machine must position itself at the TDC of the take-up lever. -
Page 81: Adjusting The Presser Bar Lifting Lever With Subclass -911/97
Adjustment Adjusting the presser bar lifting lever with subclass -911/97 Requirement When the automatic presser foot lift is operated 1. the presser foot or roller presser must rise 5 mm above the needle plate and 2. the tension discs of the thread tension device must be 0.5 mm apart. Fig. -
Page 82: Adjusting The Presser Bar Lifting Lever Without Subclass -911/97
Adjustment Adjusting the presser bar lifting lever without subclass -911/97 Requirement When the knee lever is operated 1. the presser foot or roller presser must rise 5 mm 5 mm 5 mm 5 mm 5 mm above the needle plate and 2. - Page 83 Notes...
- Page 84 G.M. PFAFF 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.