Pfaff 1525 Instruction Manual
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Summary of Contents for Pfaff 1525
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Page 1: Instruction Manual
1525 1526 Instruction Manual This instruction manual applies to machines from the following serial numbers onwards: PFAFF 1525 # 2572934 PFAFF 1526 # 2572935 296-12-18 471/002 Betriebsanleitung engl. 02.02... - Page 2 This instruction manual applies to all versions and subclasses listed under "Specifications". Reprinting, copying or translation of PFAFF instruction manuals, whether in whole or in part, is not permitted without our prior permission and not without written indication of the source.
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Page 3: Table Of Contents
Danger warnings ......................1 - 4 Proper use ........................ 2 - 1 Specifications ......................3 - 1 PFAFF 1525, PFAFF 1526 ................... 3 - 1 Possible work aids ..................... 3 - 2 Machine disposal ..................... 4 - 1 Transportation, packing and storage ..............5 - 1 Transportation to customer's premises .............. -
Page 4: Contents
Bobbin-changing/threading, and regulating the bobbin thread tension ......9 - 4 Threading needle thread and regulating its tension on the PFAFF 1525 ....... 9 - 5 Threading needle threads and regulating tensions on the PFAFF 1526 ....... 9 - 6 Setting stitch counting function for bobbin thread monitoring ........ - Page 5 Knife pressure ......................11 - 37 .06.06 Bobbin-thread retaining spring ................... 11 - 38 .06.07 Thread-catcher transmission crank (only on PFAFF 1526 ) ........11 - 39 .06.08 Transmission linkage (only on PFAFF 1526 ) ............11 - 40 .06.09 Manual cutting test ....................
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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: 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 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 m must be kept free both in front of and behind the mach- ine, so that easy access is possible at all times. Never put your hands 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 slung out of the mach-... -
Page 10: Proper Use
Proper use Proper use The PFAFF 1525 is a special single-needle high-speed lockstitch seamer with unison feed and large sewing hook. The PFAFF 1526 is a special two-needle high-speed lockstitch seamer with unison feed and large sewing hook. These machines are intended for sewing lockstitch seams in the textile industry. -
Page 11: Specifications
PFAFF 1526 at 2400 spm: ..................80 dB(A) Air consumption per working cycle:: ..............0,146 Nl Net weight of sewing head, PFAFF 1525: ............approx. 50 kg Net weight of sewing head, PFAFF 1526: ............approx. 52 kg Gross weight, PFAFF 1525: ................approx. 58 kg Gross weight, PFAFF 1526: ................ - Page 12 Specifications Maximum sewing speed The maximum sewing speed depends on the material to be sewn, and thus on the top feed stroke. PFAFF 1526 PFAFF 1525 feed Max. sewing speed in s.p.m. at needle gauges: Max. speed stroke in s.p.m.
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Page 13: 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 14: 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 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 Switch machine on or off by turning on/- off switch 1. Fig. 7 - 01 Keys on machine head The keys on the machine head are pres- sed to set off certain functions. Key 1: Reverse sewing or intermediate backtack within the seam Key 2: Raise needle... -
Page 17: Pedal
Controls Pedal 0 = Neutral position 1 = Sewing 2 = Raise presser foot 3 = Trim sewing threads For other pedal functions please refer to the instruction manual of the motor manufacturer. Fig. 7 - 03 Knee switch By operating knee switch 1 it is possible to alternate between two pre-selected feed stroke settings. -
Page 18: Presser Foot Fixing Key
Controls Presser foot fixing key To fix the presser foot, raise it with the pedal, then press key 1 and release the pedal again. To release the presser foot, raise it briefly with the pedal. Fig. 7 - 05 Adjusting the stitch length The thumb wheels 1 and 2 can be used to pre-select the stitch lengths. -
Page 19: Reverse-Feed Control
Controls Reverse-feed control To sew in reverse, press reverse-feed control lever 1. Fig. 7 - 07 Edge trimmer -731/02 Keep your hands away from the moving knife! Danger of injury! Press key 1 to switch the knife drive on or off. The bartack suppression key is omitted, see Chapter 7.02 Keys on the machine head. -
Page 20: Secondary Needle-Thread Tension
Controls Secondary needle-thread tension To increase the needle-thread tension dis-engage lever 1 by pushing it to the right. Fig. 7 - 09 Adjusting the top feed stroke The top feed stroke can be adjusted by turning knob 1. The maximum top feed stroke is limited by the manufacturer. -
Page 21: Bobbin-Thread Supply Monitor -926/06
Controls Bobbin thread supply monitor -926/06 PFAFF 1525 ● When the set thread-end length is reach- ed, diode 1 flashes and the machine is stopped. PFAFF 1526 ● When the set thread end-length is reached, diode 1 (left bobbin) or 2 (right bobbin) flashes. -
Page 22: 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 top that can hold the weight of the machine with its motor. -
Page 23: Fitting The Tilt Lock
Installation and commissioning Fitting the tilt lock .01.02 ● Screw on tilt lock 1, provided in the ac- cessories, using screw 2. Do not operate the machine without tilt lock 1! Danger of crushing between sewing head and table top! Fig. -
Page 24: Fitting The Upper V-Belt Guard
Installation and commissioning Fitting the upper V-belt guard .01.04 ● Screw position stop 1 to the right belt guard section 2. ● Attach belt guard section 3 with screws 4. ● Push the slots of the right belt guard section 2 behind the heads of retaining screws 6 and attach it with screws 5 and 6. -
Page 25: Fitting The Synchroniser
Installation and commissioning Fitting the synchronizer .01.06 ● Push synchronizer 1 onto the shaft so that stop 2 is standing in the slot on the synchronizer (see arrow) ● Tighten screws 3. ● Connect the synchronizer plug to the socket on the control box. ●... -
Page 26: Connecting The Earth Cables
Installation and commissioning Connecting the earth cables .01.08 ● Connect all the couplers coming from the machine in the control box as designated. ● Screw attach the earth cables from the sewing head, motor, on-off switch and work aids to the frame. Fig. -
Page 27: Table Top Cutout
Installation and commissioning Table top cutout Stand position Stand position 8 - 6... -
Page 28: Commissioning
Installation and commissioning Commissioning ● Check the machine, particularly its electrical wiring and pneumatic tube connections, for any damage. ● Clean the machine thoroughly and afterwards fill with oil and oil the machine (see Chap- ter 10, Care and maintenance). ●... -
Page 29: Setting Up
For all setting-up work the machine must be isolated from its 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 1525 Switch the machine off! Danger due to unintentional starting of the machine! Only use needles of system 134-35. -
Page 30: Inserting The Needles On The Pfaff 1526
Setting up Inserting the needles on the PFAFF 1526 Switch the machine off! Danger due to unintentional starting of the machine! Only use needles of system 134-35! ● Set needle bar at top position and loosen screw 1. ● Push the needle fully in (the long groove of the left needle must face to the right and that of the right needle to the left). -
Page 31: 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 2. ● Thread up as shown in Fig. 9 - 03 and wind the thread a few times clockwise around bobbin 1. -
Page 32: Bobbin-Changing/Threading, And Regulating The Bobbin Thread Tension
Setting up Bobbin-changing/threading, and regulating the bobbin thread tension Switch the machine off! Danger due to unintentional starting of the machine! ● Set take-up lever at its top position. ● Open bed slide, lift latch 1 and take out the bobbin. Place the filled bobbin into the hook so that the bobbin turns as shown by the arrow when the thread is pulled. -
Page 33: Threading Needle Thread And Regulating Its Tension On The Pfaff 1525
Setting up Threading needle thread and regulating its tension on the PFAFF 1525 Fig. 9 - 05 Switch the machine off! Danger due to unintentional starting of the machine! ● Thread the needle thread as shown in Fig. 9 - 05. -
Page 34: Threading Needle Threads And Regulating Tensions On The Pfaff 1526
Setting up Threading needle threads and regulating tensions on the PFAFF 1526 Fig. 9 - 06 Switch the machine off! Danger due to unintentional starting of the machine! ● Thread the needle thread as shown in Fig. 9 - 06. -
Page 35: Setting Stitch Counting Function For Bobbin Thread Monitoring
Setting up Setting stitch counting function for bobbin thread monitoring Direct input of number of stitches on the control panel .07.01 ● Switch on the machine. ● Press the F5 key and then the F1 key. ● By pressing +/- on the key A or B set the number of stitches to be sewn with one bobbin (max. -
Page 36: Care And Maintenance
Care and maintenance Care and maintenance Clean hook area ........daily; more frequently if in continuous operation Check oil level (hook-oil container) ..........daily, before operation Check/adjust air pressure............... daily, before operation Clean air filter of air-filter/lubricator ............when required These maintenance intervals apply to the average machine running time in sin- gle-shift operation. -
Page 37: Oiling The Hook
1 to 2 drops of oil in hole 2 of the hook gib. 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 mahine oil, No. 280-1-120 144. 10 - 2... -
Page 38: Checking/Adjusting The Air Pressure
Care and maintenance Checking/adjusting the air pressure ● Before operating the machine, always check the air pressure on gauge1. ● Gauge 1 must show a pressure of 6 bar. ● If necessary adjust to this reading. ● To do so, pull knob 2 upwards and turn it so that the gauge shows a pressure of 6 bar. -
Page 39: Adjustment
Adjustment The illustrations in this chapter show the single-needle machine, PFAFF 1525-900/81. For the two-needle machine, PFAFF 1526, various adjustments have to be made twice, i.e. on the left- and right-hand sewing hooks. This is pointed out in the chapters concerned, and some of the illustrations have to be regarded in reverse. -
Page 40: Adjusting The Basic Machine
Adjustment Adjusting the basic machine Adjusting the synchroniser .04.01 Requirement 1. At a seam interruption the machine must position the needle bar at 4 mm past b.d.c. 2. After thread trimming the machine must position the take-up lever at t.d.c. Fig. -
Page 41: Balance Weight
Adjustment Balance weight .04.02 Requirement At needle bar t.d.c. the eccentric lobe of balance weight 1 must face downwards. Fig. 11 - 02 ● Adjust balance weight 1 (screw 2) according to Requirement. 11 - 3... -
Page 42: Neutral Position Of The Unison Feed
Adjustment Neutral position of unison feed 04.03 Requirement At stitch length setting " 0 " neither the top- and bottom feed dogs nor the needle bar must make any feeding movement. Fig. 11 - 03 ● Re-position connecting rod 1 (screws 2) according to Requirement. 11 - 4... -
Page 43: Feeding Motion Of The Unison Feed
Adjustment Feeding motion of the unison feed 04.04 Requirement At the longest stitch-length setting and at needle bar b.d.c. neither the top- and bottom feed dogs nor the needle bar must make any feeding motion when the reverse-feed lever is pressed. Fig. -
Page 44: Lifting Motion Of The Bottom Feed Dog
Adjustment Lifting motion of the bottom feed dog 04.05 Requirement With the needle bar at b.d.c. the feed dog must be at t.d.c. Fig. 11 - 05 ● Loosen screw 1 and undo screw 2 a half turn. ● Turn clamp collar 3 according to Requirement and first tighten screw 2, then tighten screw 1. - Page 45 Adjustment Engaging the lifting motion ● The lifting motion is engaged when parts 8 to 13 are fitted as shown in the upper mag- nified view. Disengaging the lifting motion ● Take out screw 13 and swing part 10 to the right (screw 11). ●...
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Page 46: Bottom Feed-Dog Height
Adjustment Bottom feed-dog height 04.06 Requirement 1. When the needle bar is at b.d.c., the stitch length is set at "0" and crank 5 is at the bot- tom of the slotted lever (see arrow), the bottom feed dog must protrude from the top surface of the needle plate by 0.5 mm. -
Page 47: Needle In Needle-Hole Centre
Adjustment Needle in needle-hole centre 04.07 Requirement At stitch length "0" the needle must enter exactly in the centre of the needle hole. 58.041a Fig. 11 - 07 ● Position the needle-bar frame (screws 1, 2 and 3) according to Requirement. 11 - 9... -
Page 48: Feeding-Stroke Difference
Adjustment Feeding-stroke difference .04.08 Requirement At the longest stitch-length setting and when the balance wheel is turned, the feeding strokes of the needle bar and the bottom feed dog must be the same. Fig. 11 - 08 ● Reposition connecting rod 1 (nut 2) according to Requirement. Connecting rod to "... -
Page 49: Needle Height (Preliminary Adjustment)
Adjustment Needle height (preliminary adjustment) 04.09 Requirement At needle-bar t.d.c. the clearance between needle point and needle plate must be approx. 19 mm. 19 mm 58.028 Fig. 11 - 09 ● Re-position needle bar 1 (screw 2), without turning it, according to Requirement. 11 - 11... - Page 50 Adjustment Needle rise, hook clearance, needle height (final adjustm.) and needle guard .04.10 (On the PFAFF 1526 carry out this adjustment on both hooks) Requirement At stitch-length setting "4" and needle bar at 2 mm b.d.c.: 1. the hook point must be at "needle centre" with a hook-to-needle clearance of 0.05 to 0.1 mm;...
- Page 51 ● If necessary, readjust needle bar according to Requirement 2. ● Remove hook base and turn eccentric 7 (screw 8) according to Requirement 3. On the PFAFF 1526, also loosen screws 1, 2, 3 and 4 on the second hook and carry out the adjustments as described.
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Page 52: Bobbin-Case Opener Stroke
Adjustment Bobbin-case opener stroke .04.11 (On the PFAFF 1526 carry out this adjustment on both hooks) Requirement 1. The front edge of retaining spring 1 and stop 7 must must be flush. 2. In the rearmost position of the bobbin-case opener, hook base 6 and retaining spring 1 must stand apart by thread thickness X. -
Page 53: Top Feed Stroke
Adjustment Top feed stroke .04.12 Requirement 1. With knob 1 1 1 1 1 set at position "5", the top feed dog 10 and presser foot 11 should each rise by 5.0 mm..2. The standard stroke should be limited to 5 mm. 58.038a Fig. -
Page 54: Top Feed Lifting Motion
Adjustment Top-feed lifting motion 04.13 Requirement When a lifting-presser stroke of 3 mm is set and the descending needle is 3 mm above the needle plate, the vibrating presser must just reach the needle plate. 3 mm Fig. 11 - 13 ●... -
Page 55: Clearance Between Lifting Presser And Needle Plate
Adjustment Clearance between lifting presser and needle plate .04.14 Requirement With the lifting presser raised there must be a clearance of approx. 16 mm between lifting presser and needle plate. 18 mm Fig. 11 - 14 ● Raise the lifting presser and lock it with fixing key 1. ●... -
Page 56: Bobbin Winder
Adjustment Bobbin winder 04.15 Requirement 1. When the bobbin winder is engaged, the winding spindle must be driven reliably; when it is disengaged, friction wheel 5 must not rest on driving wheel 1. 2. The bobbin winder must wind evenly and switch itself off when the filled thread is about 1 mm from the edge of the bobbin. -
Page 57: Thread Check Spring And Thread Regulator On The Pfaff 1525
Adjustment Thread check spring and regulator on the PFAFF 1525 04.16 Requirement 1. The movement of thread check spring 7 must be completed when the needle point enters the material. 2. When the thread loop is opened to its largest amount while being passed around the sewing hook, thread check spring 7 must rise slightly from rest 1. - Page 58 Adjustment Thread check springs and regulators on the PFAFF 1526 04.17 Requirement 1. The movement of thread regulators 3 and 6 must be completed when the needle enters the material. 2. When the thread loop is opened to its largest amount while being passed around the sewing hook, thread check springs 3 and 6 must rise slightly from rests 1 and 9.
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Page 59: Speed Reduction When The Stroke Is Increased
Adjustment Speed reduction when the stroke is increased .04.18 Requirement 1. With a 2.5 mm stroke the speed should be reduced to 3000 spm. 2. With a 4.5 mm stroke the speed should be reduced to 2200 spm. Fig. 11 - 18 ●... -
Page 60: Needle-Thread Tension Release
Adjustment Needle-thread tension release .04.19 Requirement 1. When stop 4 is actuated by hand there must be a clearance of at least 0.8 mm between tension discs 3. 2. When stop 4 is in its resting position the tension must be engaged. 0.8 mm 0.8 mm Fig. -
Page 61: Presser Foot Pressure
Adjustment Presser foot pressure .04.20 Requirement The material must be reliably fed, even at the highest sewing speed. Fig. 11 - 19a ● Adjust screw 1 according to Requirement. 11 - 23... -
Page 62: Lubrication
Adjustment Lubrication .04.21 Requirement After a running time of ten seconds a thin film of oil must appear on a paper strip 1 held at the side of the sewing hook. Fig. 11 - 20 ● Check that machine has been filled with oil and that oil lines are free of air. ●... -
Page 63: Re-Engaging The Slip-Clutch
Adjustment Re-engaging the slip-clutch .04.22 Clutch 1 is adjusted at the works. In the case of a thread jamming, clutch 1 will disengage, in order to avoid damage to the hooks. The following describes how to re-engage clutch 1. Fig. 11 - 21 ●... -
Page 64: Adjusting The Edge Trimmer -731/02
Adjustment Adjusting the edge trimmer -731/02 Neutral position of knife .05.01 Requirement When the edge trimmer is disengaged, the knife must not move when the balance wheel is turned. Fig. 11 - 22 ● Turn on compressed air and disengage edge trimmer. ●... -
Page 65: Knife Stroke
Adjustment Knife stroke 05.02 Requirement The maximum knife stroke must be 9 mm Fig. 11 - 23 ● Engage edge trimmer. ● Adjust screw 1 (nut 2) according to Requirement. 11 - 27... -
Page 66: Cutting Stroke
Adjustment Cutting stroke 05.03 Requirement With the edge trimmer engaged and the needle bar at b.d.c. the knife must be at t.d.c. Fig. 11 - 24 ● Engage edge trimmer and set needle bar at b.d.c. ● Turn eccentric 1 (two srews 2) according to Requirement. 11 - 28... -
Page 67: Actuating Lever
Adjustment Actuating lever 05.04 Requirement With the edge trimmer disengaged there must be a clearance of 0.5 mm between base 3 and the housing. Fig. 11 - 25 ● Re-position lever 1 (screw 2) according to Requirement. 11 - 29... -
Page 68: Knife Height
Adjustment Knife height 05.05 Requirement When the knife is at b.d.c. the front of the knife cutting edge must be about 0.5 mm under the top edge of the stationary knife. 0.5 mm Fig. 11 - 26 ● Engage edge trimmer and set knife at its lowest position. ●... -
Page 69: Knife Position In Sewing Direction
Adjustment Knife position in sewing direction 05.06 Requirement With the needle bar at b.d.c. the middle of the knife must be at "needle centre." Fig. 11 - 27 ● Re-position knife mounting 1 (screw 2) according to Requirement. 11 - 31... -
Page 70: Knife Position Crosswise To Sewing Direction
Adjustment Knife position crosswise to sewing direction 05.07 Requirement 1. The knife must rest with light pressure against stationary knife 3. 2. The knife must be at a slight angle to stationary knife 3 (shear action of approx. 2°). Fig. 11 - 28 ●... -
Page 71: Adjusting The Thread Trimmer 900/81
Adjustment Adjusting the thread trimmer 900/81 Resting position of roller lever/radial position of control cam .06.01 Requirement 1. When cylinder plunger 1 is retracted there must be a clearance of 0.1 mm between outer edge of control cam 6 and the roller of lever 5. 2. -
Page 72: Thread Catcher Height
Adjustment Thread-catcher height .06.02 Requirement The lower edge of thread catcher 3 must clear bobbin 4 case by about 0.8 mm. Fig. 11 - 30 ● Loosen screws 1 and 2. ● Set thread catcher 3 above bobbin case 4. ●... -
Page 73: Thread Catcher Position
Adjustment Thread catcher position .06.03 Requirement When the thread catcher is in its resting position, the edges of thread catcher 4 and knife 5 must be flush (see arrow). Fig. 11 - 31 ● Set needle bar at b.d.c. and push roller lever 2 against control cam 3. ●... -
Page 74: Knife Height
Adjustment Knife height .06.04 Requirement With the thread trimmer in its resting position the edges of thread catcher 3 and knife 1 must be flush (see arrow). Fig. 11 - 32 ● Check knife height according to Requirement. To adapt the height of knife 1, remove it (screws 2) and fit shims (part No. -
Page 75: Knife Pressure
Adjustment Knife pressure .06.05 Requirement When the front edge of thread catcher 3 has passed the cutting edge by half, knife 4 must rest with light pressure on the edge of the catcher. Fig. 11 - 33 ● Set take-up lever at b.d.c. and push roller lever 1 into control cam 2. ●... -
Page 76: Bobbin-Thread Retaining Spring
Adjustment Bobbin-thread retaining spring .06.06 Requirement Retaining spring 1 must 1. not be deflected during the thread catcher movement, 2. reliably retain bobbin thread 4 after cutting, and 3. not hinder removal and replacment of the bobbin case. Fig. 11 - 34 ●... -
Page 77: Thread-Catcher Transmission Crank (Only On Pfaff 1526 )
Adjustment Thread catcher transmission crank (only on the PFAFF 1526 ) .06.07 Requirement With the thread trimmer in its resting position the bearing points of roller 3, roller lever 4 and ball-joint 5 must be aligned. Fig. 11 - 35 ●... - Page 78 Adjustment Tansmission linkage (only on the PFAFF 1526) .06.08 Requirement With the thread trimmer in its resting position, transmission cranks 3 and 4 must stand parallel with each other. Fig. 11 - 36 ● Set the thread trimmer at its resting position.
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Page 79: Manual Cutting Test
Adjustment Manual cutting test .06.09 Requirement 1. When thread catcher 1 is on its forward stroke, it must not carry bobbin thread 3 forward too. 2. When thread catcher 1 is in its front position, the bobbin thread 3 must be positioned in the middle of the marked area (see arrow). -
Page 80: Adjusting The Thread Trimmer 900/82
Adjustment Adjusting the thread trimmer 900/82 Resting position of the roller lever/Preliminary adjustment of the radial .07.01 position of the control cam Requirement 1. When the cylinder plunger 1 is retracted, there must be a clearance of 0.1 mm between the outer edge of control cam 6 and the roller of lever 5. 2. -
Page 81: Thread Catcher And Knife Height
Adjustment Thread catcher and knife height .07.02 Requirement 1. There should be a clearance of 0.6 mm between the lower edge of the thread catcher 1 and the bobbin case 2. 2. When the thread trimmer is in its resting position the upper edges of knife 3 and thread catcher 1 should be at the same level. -
Page 82: Knife Mounting Support
Adjustment Knife mounting support .07.03 Requirement When the thread trimmer is in its cutting position, the knife mounting support 3 must be in contact with knife mounting 5. Fig. 11 - 40 ● Switch off master switch and turn off compressed air. ●... -
Page 83: Knife Cutting Position
Adjustment Knife cutting position .07.04 Requirement When the knife is in its cutting position, there shold be a clearance of 34 mm between the front edge of the knife and the front edge of the position stop 3. Fig. 11 - 41 ●... -
Page 84: Thread Catcher Position
Adjustment Thread catcher position .07.05 Requirement 1. When the thread trimmer is in its cutting position, the edges of the thread catcher 4 4 4 4 4 and knife 8 8 8 8 8 must be flush (see arrow). 2. In this position screw 1 must be touching the knife mounting support (see arrow). Fig. -
Page 85: Readjustment Of The Control Cam
Adjustment Readjustment of the control cam .07.06 Requirement When the take-up lever is at TDC, the cutting process should just have ended. Fig. 11 - 43 ● Adjust control cam 1 (screws 2) according to the requirement. 11 - 47... -
Page 86: Knife Pressure
Adjustment Knife pressure .07.07 Requirement When the front edge of thread catcher 3 has passed the cutting edge by half, the cutting edge of the knife 4 must rest with light pressure on the edge of the catcher. Fig. 11 - 44 ●... -
Page 87: Bobbin-Thread Retaining Spring
Adjustment Bobbin-thread retaining spring .07.08 Requirement The retaining spring 1 must 1. reliably retain the bobbin thread after cutting and 2. neither hinder the thread return nor the removal and replacement of the bobbin case. 58.045a Fig. 11 - 45 ●... -
Page 88: Manual Cutting Test
Adjustment Manual cutting test .07.09 Requirement 1. When thread catcher 1 is on its forward stroke, it must not carry bobbin thread 3 forward too. 2. When thread catcher 1 is in its front position, the bobbin thread 3 must be positioned in the middle of the marked area (see arrow). -
Page 89: Adjusting The Bobbin-Thread Supply Monitor -926/06
Adjustment Adjusting the bobbin-thead supply monitor -926/06 (On the PFAFF 1526 carry out this adjustment on both hooks) Requirement When the reflection surface is positioned at the transmitting and receiving unit, the luminous diode on the amplifier must light up and the highest possible voltage applied. -
Page 90: Parameter Settings
Adjustment Parameter settings Selecting and changing parameters .09.01 ● Simultaneously press and hold down the "PM" and "TE" keys and switch on the machine. ● Press the "TE TE" key (LED on) ● Select the desired group, e.g. "700", by pressing +/- on the "P" key "P"... -
Page 91: List Of Parameters
Adjustment List of parameters .09.02 Speed when adjusting stroke 300 - 6400 1800 1800 Speed limiter (small stroke) 300 - 6400 3000 3000 Speed limiter (large stroke) 300 - 6400 2200 2200 601 Cut I = yes II= no Actual value on display I = on II= off Max. - Page 92 Adjustment Needle position 6 0 - 239 (Start tension release signal 2) Display on operating panel corresponds to I = Actual speed II = remaining stitches for bobbin thread Counter for bobbin monitoring I = activated II = deactivated Counter for bobbin monitoring brings I = stop and signal at output Y36 II = signal at output Y36 without stop Delay from "feed resetting on"...
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Page 93: Wearing Parts
Wearing parts Wearing parts This list indicates the most important wearing parts. You can request a detailed parts list for the complete machine under parts number 296-12-18 403. PFAFF 1525 PFAFF 1525-731/02 PFAFF 1526 11-132 217-15 11-130 173-15 91-700 173-15 (2x) - Page 94 12-315 080-15 (2x) 91-266 299-91 91-266 585-01 91-176 094-05 91-266 584-05 91-266 669-05 91-186 659-05 99-137 151-45 PFAFF 1525 91-176 329-05 PFAFF 1526 91-171 049-05 91-176 321-05 91-171 042-05 For sub-class -731/02 Cutting depth 2.5 - 4.9 mm Cutting depth 5,0 - 8,0 mm...
- Page 95 Notes...
- Page 96 PFAFF Industrie Maschinen AG Postfach 3020 D-67653 Kaiserslautern Königstr. 154 D-67655 Kaiserslautern Telefon: (0631) 200-0 Telefax: (0631) 17202 E-Mail: info@pfaff-industrial.com Gedruckt in der BRD Printed in Germany Imprimé en R.F.A. Impreso en la R.F.A.