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Pfaff 1295 Instruction Manual

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1295
1296
Instruction manual
296-12-18 135
Betriebsanleitung engl. 08.98

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Summary of Contents for Pfaff 1295

  • Page 1 1295 1296 Instruction manual 296-12-18 135 Betriebsanleitung engl. 08.98...
  • 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.

  • Page 3: Table Of Contents

    PFAFF 1295, PFAFF 1296 ..................3 - 1 Possible versions and subclasses ................3 - 2 Maximum speeds of the PFAFF 1295 ............... 3 - 2 Maximum speeds of the PFAFF 1296 ............... 3 - 2 Disposal of the machine ..................4 - 1 Transportation, packing and storage ..............
  • Page 4 Threading the bobbin thread and regulating the bobbin thread tension ......9 - 4 Threading needle thread/adjusting needle thread tension on the PFAFF 1295 ....9 - 5 Threading needle thread/adjusting needle thread tension on the PFAFF 1296 ....9 - 6 Care and maintenance ...................
  • Page 5 Control lever stroke ....................11 - 23 .05.05 Thread-trimmer drive linkage ................... 11 - 24 .05.06 Linkage bar (only on the PFAFF 1296) ..............11 - 25 .05.07 Thread catcher height ....................11 - 26 .05.08 Thread catcher resting position ................11 - 27 .05.09...

  • Page 6: Safety

    Safety Safety 1.01 Regulations This machine has been made according to 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 valid pollution control regulations! The locally valid regulations of the social insurance institution responsible for occupational accidents, or other supervisory authorities, must be strictly adhered to!

  • Page 7: Safety Symbols

    The user must ensure that none of the safety devices are removed nor put out of working 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: Notes For 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 machine and for removing any disturbances in the sewing area. The operating staff must be sure to observe the following items: always observe the notes on safety in this instruction manual in their work! refrain from any working methods which adversely effect the safety of the machine! avoid wearing loose clothing or jewelry such as necklaces or rings!

  • Page 9: Danger Warnings

    Safety Danger warnings A working area of 1 m must be kept free both in front of and behind the machine, so that easy access is possible at all times. Never put your hands or fingers in the sewing area during sewing! Danger of injury by the needle! While setting or adjusting the machine do not leave any objects on the table nor in the needle plate area! Objects may be trapped or flung out of the...

  • Page 10: Proper Use

    Proper use Proper use The PFAFF 1295 is a single-needle lockstitch postbed sewing machine with unison feed and large vertical sewing hook. The PFAFF 1296 is a two-needle lockstitch postbed sewing machine with unison feed and large vertical sewing hooks.

  • Page 11: Specifications

    Air consumption: ................~0,8 l litres/work cycle Ambient noise level: Workplace noise level, PFAFF 1295, at a speed of 1,600 r.p.m......77 dB(A) Workplace noise level, PFAFF 1296, at a speed of 1,500 r.p.m......76 dB(A) Noise measurement according to DIN 45 635-48-A-1...

  • Page 12: Possible Versions And Subclasses

    Version B (only on 1296): ............. For sewing medium materials Version CN: ..............For sewing medium-heavy materials Work aids: Subclass -900/56 ..................Thread trimmer Subclass -911/97 ........ Automatic presser foot lift with backtacking system Maximum speeds of the PFAFF 1295 Top feed stroke Version Max. speed (s.p.m.) 2200 Up to 5.5 mm...

  • Page 13: Disposal Of The Machine

    Disposal of machine waste Disposal of the machine Proper disposal of the machine is the responsibility of the user. The materials used for the machine are steel, aluminium, brass and various plastics. The electrical equipment comprises plastic materials and copper. The machine must be disposed of according to the locally valid pollution control regulations;...

  • Page 14: Transportation, Packing And Storage

    Transportation, packing and storage Transportation, packing and storage Transportation to the customer’s premises Within the Federal Republic of Germany, complete machines (with table and motor) are delivered without packing. Machines without table (sewing heads only) and machines intended for exports are packed. Tansportation inside the customer’s premises The manufacturer cannot be made liable for transportation inside the customer’s premises nor to other operating locations.

  • Page 15: Explanation Of Symbols

    Explanation of symbols Explanation of symbols In this instruction manual, work to be carried out, or important information, is accentuated by symbols. 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 16: Controls

    Controls Controls On/off switch The power supply to the machine is switched on or off by turning switch 1. The illustrated on/off switch is fitted to machines with Quick motors. If other motors are used, a different switch may be fitted. Fig.

  • Page 17: Pedal (On Machines With Subclass -917/97)

    Controls Pedal (on machines with subclass -911/97) = Neutral position +1 = Sewing -1 = Raise presser foot -2 = Thread trimming (on machines with thread trimmer) For further pedal functions please refer to the instruction manual of the motor manufacturer.

  • Page 18: Key On Machine Head (On Machines With Subclass -911/97)

    Controls Key on machine head (on machines with subclass -911/97) If key 1 is pressed during sewing, the machine will switch to reverse sewing. Fig. 7 - 05 Presser bar lifter The presser foot is lifted by raising presser bar lifter 1. Fig.

  • Page 19: Feed Regulator/Reverse Sewing

    Controls Feed regulator/reverse sewing The stitch length is adjusted by turning the knurled nut on lever 1. To reverse the sewing direction press lever 1 fully upwards. Fig. 7 - 07 Feed regulator (on machines with subclass -911/97) Turn knurled screw 1 to adjust the stitch length for sewing forwards.

  • Page 20: Adjusting Nut For The Top Feed Stroke

    Controls Adjusting nut for the top feed stroke Switch off the machine! Loosen screw 1 at the back of the machine. Open cover 2. Loosen screw 3 and adjust lever accordingly. Close cover 2 and tighten screw 1. Fig. 7 - 09 7 - 5...

  • Page 21: Installation And Commissioning

    Installation and commissioning Installation and commissioning The machine must only be installed and commissioned by qualified personnel! All relevant safety regulations must be strictly adhered to! If the machine is delivered without a table, be sure to use a stand and table that will reliably support the weight of the machine with its motor.

  • Page 22: Tensioning The V-Belt

    Installation and commissioning Tensioning the v-belt .01.02 Loosen nuts 1. Tension v-belt by adjusting bracket 2. Tighten nuts 1. Fig. 8-02 shows a Quick motor. If a different motor is used, please refer to the instruction manual of the motor manufacturer.

  • Page 23: Fitting The Lower Belt Guard

    Installation and commissioning Fitting the lower belt guard .01.04 Position belt guard 1 so that motor pulley and v-belt can run freely. Fig. 8-04 shows a Quick motor. If a different motor is used, please refer to the instruction manual of the motor manufacturer.

  • Page 24: Assembling The Reel Stand

    Installation and commissioning Assembling the reel stand .01.06 Assemble the reel stand as shown in Fig. 8-06. Afterwards insert the stand in the hole in the table top and secure it with the nuts provided. Fig. 8 - 06 Commissioning Check the machine, particularly its electrical wiring and pneumatic tube connections, for any damage.

  • Page 25: Setting Up

    For all setting-up work the machine must be isolated from the power supply by turning off the on/off switch or removing the machine plug from the electric power socket! Inserting the needle on the PFAFF 1295 Switch off the machine! Danger of injury due to...

  • Page 26: Inserting The Needle On The Pfaff 1296

    Setting up Inserting the needles on the PFAFF 1296 Switch off the machine! Danger of injury due to unintentional starting of the machine! Only use needles of system 134-35. Set needle bar at top position and loosen screws 1. Push needles 2 fully in (the long groove of the left needle must face to the right and that of the right needle to the left).

  • Page 27: Winding The Bobbin Thread, Regulating The Winder Tension

    Setting up Winding the bobbin thread, regulating the winder tension Fig. 9 - 03 Place an empty bobbin 1 on winder spindle 1. Thread up as shown in Fig. 9-03 and wind the thread a few ttimes clockwise around bobbin 1. Engage the bobbin winder by pressing spindle 2 and lever 3 simultaneously The bobbin is wound during sewing.

  • Page 28: Changing The Bobbin

    Setting up Changing the bobbin Switch off the machine! Danger of injury due to unintentional starting of the machine! Removing the bobbin case: Set the take-up lever at its highest point. Remove the post cover, lift latch 1 and take out bobbin case 2. Inserting the bobbin case: Insert bobbin case 2 so that you feel it snap in place.

  • Page 29: Threading Needle Thread/Adjusting Needle Thread Tension On The Pfaff 1295

    Setting up Threading needle thread/adjusting needle thread tension on the PFAFF 1295 Fig. 9 - 06 Switch off the machine! Danger of injury due to unintentional starting of the machine! Thread needle thread as shown in Fig. 9-06. Be sure to thread the needle from the left.

  • Page 30: Threading Needle Thread/Adjusting Needle Thread Tension On The Pfaff 1296

    Setting up Threading needle thread/adjusting needle thread tension on the PFAFF 1296 Fig. 9 - 07 Switch off the machine! Danger of injury due to unintentional starting of the machine! Thread needle threads as shown in Fig. 9-07. Be sure to thread the right needle from the left and the left needle from the right.

  • Page 31: Care And Maintenance

    Care and maintenance Care and maintenance Check air pressure ............daily, each time before operation Clean hook area ..........daily, in continuous operation several times Check water bowl of air filter/regulator .......... daily, before operation Oil hook ........................daily General oiling ....................twice a week Oil needle-head parts ...................

  • Page 32: General Oiling

    Care and maintenance General oiling Fig. 10 - 02 Apply oil at all bearing points above the table (see arrows) twice a week. Switch off machine! Danger of injury! Pull knee lever out to the front and tilt machine backwards. Apply oil at all bearing points beneath the table (see arrows) twice a week.

  • Page 33: Oiling The Sewing Hook

    Care and maintenance Only use oil with a medium viscosity of 22.0 mm²/s at 40° C and a density of 0.865 g/cm³ at 15°C! We recommend PFAFF sewing-machine oil, part No. 280-1-120 144. Oiling the sewing hook Switch off the machine!

  • Page 34: Oiling The Needle-Head Parts

    Close cover 2 and tighten screw 1. Only use lithium grease with a dripping point of 185°C and a roll-penetration of 22 to 25 mm at 25°C. We recommend PFAFF sewing Fig. 10 - 05 machine grease, part No. 280-1-120247. 10 - 4...

  • Page 35: Checking/Regulating The Air Pressure

    Care and maintenance Checking/regulating the air pressure Check the air pressure on gauge 1 every time before operation. Gauge 1 must show a pressure of 6 bar. Regulate this pressure if required. To do so, pull knob 2 up and turn it accordingly.

  • Page 36: Adjustment

    Adjustment Adjustment For the adjustments in this chapter the PFAFF 1296 two-needle machine is illustrated. On the PFAFF 1295 single-needle machines various adjustments only have to be carried out on one side, i.e. in the right-hand hook area. This is referred to in the different chapters.

  • Page 37: Adjusting The Basic Machine

    Adjustment Adjusting the basic machine Position of the bottom feed dog crosswise to sewing direction .04.01 Requirement The bottom feed dog must be the same distance from the left and right side of the feed slots. Fig. 11 - 01 Loosen screws 1 and 2.

  • Page 38: Adjusting The Bottom Feed Dog In Sewing Direction

    Adjustment Adjusting the bottom feed dog in sewing direction .04.02 Requirement With the longest stitch length set, the bottom feed dog must not strike the feed slot at the front or rear end of its stroke. Fig. 11 - 02 Set the longest stitch length.

  • Page 39: Bottom Feed Dog Height

    Adjustment Bottom feed dog height 04.03 Requirement With the stitch length set at "0" the feed dog must protrude from the needle plate by the height of its teeth when at its highest position. Fig. 11 - 03 Set stitch length „0“. Turn the balance wheel to set the bottom feed dog at its highest position.

  • Page 40: Needle Height (Preliminary Adjustment)

    Adjustment Needle height (preliminary adjustment) 04.04 Requirement With the needle bar at b.d.c. the clearance between needle bar and needle plate must be 15 mm. Fig. 11 - 04 Re-position the height of needle bar 1 (screws 2) according to Requirement, but do not turn it.

  • Page 41: Needle In Needle-Hole Centre

    Adjustment Needle in needle-hole centre .04.05 Requirement With the stitch length set at "0" the needle must enter exactly in the centre of the needle hole. Fig. 11 - 05 Remove vibrating presser 1 and lifting presser 2. Set the stitch length at "0" and set the needle bar at t.d.c. Insert a new needle, loosen screws 3, 4, 5 and 6.

  • Page 42: Bottom Feed Dog Lifting Motion

    Adjustment Bottom feed dog lifting motion 04.06 Requirement 1. With the needle bar at b.d.c. the feed dog must be at its highest position. 2. When the longest stitch length is set and the balance wheel is turned, the bottom feed dog must reach the top side of the needle plate at the same time as the needle.

  • Page 43: Feeding Stroke Of Bottom And Top Feeds

    Adjustment Feeding stroke of bottom and top feeds .04.07 Requirement With the longest stitch length set and the needle bar at b.d.c. neither the top- nor bottom feed must make any movement when the reverse-feed lever is operated. Fig. 11 - 07 Set the longest stitch length.

  • Page 44: Hook Clearance, Needle Rise, Needle Height And Needle Guard

    Adjustment Hook clearance, needle rise, needle height and needle guard .04.08 Requirement With the stitch length set at "3" and in needle-rise position (= 1.8 mm past b.d.c. on version "B" or 2.0 mm past b.d.c. on version "C") 1. The hook point must be at the "needle centre" and the clearance between hook and needle 0.05 to 0.1 mm, 2.
  • Page 45 Adjustment Set the hook point at the needle centre, making sure that the needle is not deflected by needle guard 8. Making sure that bevel gear 6 is not too close, but the hook has not too much play, tighten screws 2. Move fixing collar 7 up against bevel gear 6 and tighten screws 3.

  • Page 46: Top Feed Stroke

    Adjustment Top feed stroke .04.09 Requirement With the longest top feed stroke set and the stitch length at "0", lifting presser 1 and vibrating presser 2 must each rise from the needle plate by 7.0 mm when the balance wheel is turned. Fig.

  • Page 47: Top Feed Lifting Motion

    Adjustment Top feed lifting motion .04.10 Requirement When lifting presser 1 is resting on the needle plate, vibrating presser 4 and needle point 5 must reach the needle plate at the same time at the highest top feed stroke. Fig. 11 - 10 Lower lifting presser 1 onto the needle plate.

  • Page 48: Bobbin Case Opener

    Adjustment Bobbin case opener .04.11 Requirement The needle thread must neither be trapped between bobbin case opener 3 and hook base 4 nor between position finger 5 and the retainer on the needle plate (see arrows). Fig. 11 - 11 Undscrew and remove post covers 1 (on left post from the rear).

  • Page 49: Slip Coupling

    Adjustment Slip coupling .04.12 Slip coupling 4 is adjusted at the works. When a thread jams, slip coupling 4 disengages, in order to avoid damage to the hooks. To engage the coupling again, proceed as follows. Fig. 11 - 12 Remove jammed thread.

  • Page 50: Needle-Thread Tension Release

    Adjustment Needle-thread tension release .04.13 Requirement With the lifting presser raised, there must be a clearance of at least 0.5 mm between tension discs 4. 0.5 mm Fig. 11 - 13 Position pressure plate 1 behind mounting bracket 2 according to Requirement. The clearance of 0.5 mm is a miminum setting and may be as much as 1 mm for heavy threads.

  • Page 51: Thread Check Spring, Without Subclass -900/56

    Adjustment Thread check spring, without subclass -900/56 .04.14 Requirement The movement of thread check spring 5 must be finished when the needle pointe enters the material (=spring stroke of about 7 mm). Fig. 11 - 14 Adjust stop 1 (screw 2) according to Requirement. To adjust the pressure of the spring, turn screw 3 (screw 4).

  • Page 52: Thread Check Spring On The Pfaff 1296 With Subclass -900/56

    Adjustment Thread check spring on the PFAFF 1296 with subclass -900/56 .04.15 Requirement The movements of thread check springs 1 and 6 must be finished when the needle points enter the material (=spring stroke of about 7 mm). 8 10 Fig.

  • Page 53: Bobbin Winder

    Adjustment Bobbin winder .04.16 Requirement 1. With the bobbin winder engaged, drive wheel 1 must be driven reliably. 2. With the bobbin winder disengaged, friction wheel 5 must not run against drive wheel 1. 3. The bobbind winder must switch itself off when the filled thread is about 1 mm from the rim of the bobbin.

  • Page 54: Pressure Of The Lifting Presser

    Adjustment Pressure of the lifting presser .04.17 Requirement 1. The material must be properly fed, even at the highest sewing speed. 2. There must be no pressure marks on the material. Fig. 11 - 17 Turn screw 1 according to the Requirement. 11 - 19...

  • Page 55: Adjusting The Thread Trimmer -900/56

    Adjustment Adjusting the thread trimmer -900/56 Engaging solenoid .05.01 Requirement 1. Mounting bracket 1 must be in the middle of its adjusting range and parallel with the right-hand edge of the mounting bracket. 2. When the thread trimmer is in its resting position the core of solenoid 3 must protrude from the solenoid housing by about 4 mm.

  • Page 56: Control Cam (Preliminary Adjustment)

    Adjustment Control cam (preliminary adjustment) .05.02 Requirement 1. Control cam 1, must be centred with the cutout of bearing mounting 5. 2. With the needle bar at t.d.c., screws 2 must be visible from the front and aligined parallel with the bedplate. Fig.

  • Page 57: Control Lever Spring Action

    Adjustment Control lever spring action .05.03 Requirement When the thread trimmer is in its resting position, it must be possible to press control lever 3 about 1 mm towards the bedplate (spring action). Fig. 11 - 20 Turn screw 1 (nut 2) according to Requirement. 11 - 22...

  • Page 58: Control Lever Stroke

    Adjustment Control lever stroke 05.04 Requirement 1. When engaging lever 5 is operated the pin of control lever 6 must drop freely into the track of control cam 7. 2. After thread trimming, control lever 6 must pass freely on the right side of stop plate 3 and engage control lever 5 behind stop plate 3.

  • Page 59: Thread-Trimmer Drive Linkage

    .05.05 Requirement 1. On the PFAFF 1296 thread-catcher drive linkage 1 must have a length of 128 mm, less half of the needle gauge. On the PFAFF 1295, thread catcher drive linkage 1 must have a length of 128 mm 2.

  • Page 60: Linkage Bar (Only On The Pfaff 1296)

    Adjustment Linkage bar (only on the PFAFF 1296) .05.06 Requirement The length of linkage bar 1 must be the same as the distance between the two thread- catcher drive shafts 3. Fig. 11 - 23 Adjust middle section 1 (nuts 2) of the linkage bar according to Requirement.

  • Page 61: Thread Catcher Height

    Adjustment Thread catcher height .05.07 Requirement There must be a clearance of 0.7 mm between the underside of thread catcher 4 and bobbin case cap 5. Fig. 11 - 24 Loosen screws 1 and 2. Adjust the height of shaft 3 according to Requirement. Tighten screws 1.

  • Page 62: Thread Catcher Resting Position

    Adjustment Thread catcher resting position .05.08 Requirement When the thread trimmer is in its resting poistion there must be a clearance of about 4 mm between the point of catcher 3 and the cutting edge of knife 4. 4 mm Fig.

  • Page 63: Knife Pressure

    Adjustment Knife pressure .05.09 Requirement When the front edge of thread catcher 3 has passed the knife cutting edge by half, knife 1 must rest with light pressure on the edge of the catcher. Fig. 11 - 26 Adjust knife 1 (screws 2) according to Requirement 11 - 28...

  • Page 64: Bobbin Thread Trapping Spring

    Adjustment Bobbin thread trapping spring .05.10 Requirement 1. Bobbin thread trapping spring 3 must not be deflected by thread catcher 4 in any phase. 2. After the trimming action the bobbin thread must be securely trapped. 3. It must be possible to insert and remove the bobbin from the hook without any hindrance. Fig.

  • Page 65: Control Cam (Final Adjustment)

    Adjustment Control cam (final adjustment) .05.11 Requirement The trimming action must be just completed when the take-up lever is at t.d.c. Fig. 11 - 28 Turn control cam 1 (screws 2) according to Requirement. 11 - 30...

  • Page 66: Release Lever

    Adjustment Release lever .05.12 Requirement When the pin of control lever 3 has dropped into the track of control cam 4 and the needle bar is at b.d.c. there must be a clearance of about 1 mm between control lever 3 and release lever 5.

  • Page 67: Release Rod

    Adjustment Release rod .05.13 Requirement 1. When the lifting presser is resting on the needle plate, pin 3 must rest at the lower end of the elongated hole in pull-rod 1. 2. The tension discs must not be moved apart in this position. Fig.

  • Page 68: Adjusting The Synchroniser

    Adjustment Adjusting the synchroniser .05.14 Requirement 1. When sewing is interrupted, the machine must position at about 4 mm past b.d.c. of the needle bar. 2. After thread trimming the machine must position with the take-up lever at t.d.c. Carry out adjustment according to instruction manual of motor. 11 - 33...
  • Page 69 Notes...
  • Page 70 G.M. PFAFF Aktiengesellschaft Postfach 3020 D-67653 Kaiserslautern Königstr. 154 D-67655Kaiserslautern Telefon: (0631) 200-0 Telefax: (0631) 17202 Telex: 45753 PFAFF D Gedruckt in der BRD Printed in Germany Imprimé en R.F.A. Impreso en la R.F.A.

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