Duerkopp Adler 745-34 Service Instructions Manual Download

Page: 60 / 156

3.2

Toothed belt tension

Caution: Danger of injury !

Switch off the main switch.

Check and adjust the toothed belt tension only with the sewing unit
switched off.

Standard checking

Over the tightening length S= 300 mm the toothed belt must bend
under the test load FV = 34 N until the upper belt just touches the
lower one.

Consequences of a too high toothed belt tension
–

Reduced durability

–

Noisy running

Consequences of a too low toothed belt tension
–

No faultless meshing between belt teeth and disc toothing

–

The teeth may skip over under load

–

Non-uniform stitch lengths

–

Loss of steps possible

–

Unscrew screws 7 and take off the covering cap 6.

–

Place the test load in the middle of the toothed belt (e.g. with the
help of a spring balance).
The tension of the toothed belt is correct when the upper belt half
just touches the lower one.

Summary of Contents for 745-34

Page 1: ...Instructions Installation Instructions Service Instructions Instructions for Programming DAC Postfach 17 03 51 D 33703 Bielefeld Potsdamer Straße 190 D 33719 Bielefeld Telefon 49 0 5 21 9 25 00 Telefax 49 0 5 21 9 25 24 35 www duerkopp adler com 1 2 3 4 Ausgabe Edition 01 2004 Printed in Federal Republic of Germany Teile Nr Part No 0791 745161 ...

Page 2: ...Summary Operating Instructions Installation Instructions Service Instructions Instructions for Programming DAC Interconnection diagram 9870 745100 B 9870 745115 B 9870 745116 B 9870 001018 B Pneumatic circuit plan 9770 745003 ...

Page 3: ...plate 25 2 4 10 Exchanging the needle holder 26 2 5 Hook 27 2 5 1 Hook shaft height 27 2 5 2 Adjusting the gear clearance of the hook drive 28 2 5 3 Adjusting the looping stroke 29 2 5 4 Adjusting the height of the needle holders 30 2 5 5 Adjusting the distance between hook tips and needles 32 2 5 6 Needle protection 34 2 5 7 Exchanging the hook 35 2 5 8 Adjusting the bobbin case holding wire 36 2...

Page 4: ...usting the slant of the corner incisions 72 5 5 Corner knife adjustments 73 5 6 Exchanging the corner knives 74 6 Laser markings 75 6 1 Aligning the markings 76 7 Reflected light barriers for flap scanning 7 1 Swivel arm 78 7 2 Aligning the light barriers 79 7 3 Aligning the air nozzles for cleaning the reflected foil 80 8 Aligning the folding station plate as to the measuring line 81 9 Positionin...

Page 5: ...ing method B 110 13 5 Aligning and adjusting the flap clamp Working method B 113 13 5 1 Aligning the flap clamps as to the pick up folder 113 13 5 2 Aligning the flap clamps as to the pick up folder 114 15 5 3 Adjusting the flap clamp lifting device 115 15 3 4 Adjusting the flap clamp as to the rest table 117 13 6 Flap turning device Working method F 118 13 6 1 Exchanging the toothed belt 118 13 6...

Page 6: ...peed of the smoothing movement 144 16 3 5 Adjusting the height 146 16 3 6 Stacker earthing cable 146 16 4 Ejector roller 147 16 5 Adjusting the tape feed and the automatic cutting device for reinforcement strips 148 16 6 Set of parts Pocket bag on flap 149 16 6 1 Aligning the flap clamps 149 16 6 2 Adjusting the guide plates at the folder and pick up folder 149 16 6 3 Adjustments at the feeding cl...

Page 7: ...ons Before any adjusting operations of parts involved in the stitch formation are made Insert a new needle without any damage Caution Danger of injury Before repair converting and maintenance work is done Switch off the main switch and disconnect the sewing unit from the pneumatic supply system Exception Adjusting operations carried out with the help of test or setting programs Adjusting operation...

Page 8: ...ition A looping stroke The setting gauges marked with are available on inquiry Position Setting gauge Order No Use 1 Locking peg 0211 000700 Looping stroke position 2 Gauge 0246 002591 Crank pin to arm shaft 3 Gauge 0244 001001 Height of hook shaft 4 Measuring bridge 0212 004942 Height of needle holder 5 Measuring pin 0216 001070 Height of needle holder 6 Adjusting pin 0244 001014 Lateral hook dis...

Page 9: ...n the arm shaft crank The arm shaft crank 1 is provided with a groove 2 5 mm The machine head can be locked with the locking peg through drill hole 3 Now the machine is in looping stroke position position A 7 3 1 2 ...

Page 10: ... head For maintenance work the machine head can be raised For this purpose the transport carriage must be in its rear position Caution Danger of injury Switch off the main switch Raise the machine head only with the main switch switched off 8 1 4 5 3 6 7 ...

Page 11: ...r 5 and raise it carefully Pawl 2 snaps in additionally The area underneath the machine table is accessible for cleaning Caution Danger of injury Do not reach into the table top cutout when the machine head is raised Swinging the machine head back Hold the machine head in the area of head cover 5 Release pawl 2 Swing the machine head back carefully Attention Danger of breakage Hold the machine hea...

Page 12: ...needle distance the machine head can be removed For this purpose the transport carriage must be in its rear position Caution Danger of injury Switch off the main switch and disconnect from the pneumatic net Remove and install the machine head only with the main switch switched off 10 1 3 6 7 4 5 ...

Page 13: ...s shock absorber connection 2 Take off the locking bow 13 with spring Unscrew screws 8 and 9 Lift out the machine head carefully with an appropriate auxiliary tool Installing the machine head Carefully insert the machine head into the cutout for the head with an appropriate auxiliary tool Screw the machine head tight with the screws 8 and 9 Re establish the gas shock absorber connection 2 Reinsert...

Page 14: ...eparately connectable needle bars ATTENTION The crank pin 1 is precisely set by the manufacturer After exchanging the thread lever or if the needles do not disconnect correctly any longer the crank pin 1 has to be readjusted The adjustment of the crank pin 1 is done with the gauge 7 Order No 0246 002591 It is not necessary to remove crank and armshaft for the adjustment 12 4 7 1 1 ...

Page 15: ...ched off Remove the head cover 9 after loosening the fastening screws 8 Swivel the thread tension plate 10 sideways after loosening the fastening screws 11 Remove the needle bar linkage 12 see chapter 2 4 1 Remove the switching cylinder 13 for the center knife drive see chapter 2 6 2 13 11 10 8 9 8 12 13 ...

Page 16: ... insertion bores 6 Turn the crank pin 1 in such a way that it reaches in the cutout of the gauge Press the crank pin 1 on The thread lever 5 must have a minimum axial backlash for the lubrication Tighten Allen screws 2 and support bolt 3 Remove gauge 7 Turn the handwheel and check free movement of the upper shaft Put the needle tie rod with the needle cage on the crank pin 1 and tighten the fasten...

Page 17: ...nkage Caution Danger of injury Switch off the main switch Remove the needle bar linkage only with the sewing unit switched off Unscrew the screws 1 and take off head cover 2 Loosen the screws 3 and 5 and pull off the thread puller 4 Unscrew screws 8 Unscrew screw 6 15 5 4 3 1 2 1 6 6 8 7 ...

Page 18: ...orrect height of the linkage frame has been set by the manufacturer ATTENTION Avoid damage to the oil wick when taking off the needle bar Note the position of the oil wick for the subsequent assembly Carefully remove the support plate 9 with the needle bar linkage 10 from the stop pin 11 This is facilitated by slight turning motions 16 10 9 13 12 11 ...

Page 19: ...ocated below Remove the two securing halves 14 They are located in the annular slot 13 and become visible after pushing down the clamping ring 4 Shift the switching block in such a way that the two decoupling bars 15 are not actuated Shift the yoke 7 slowly up the needle bar until the three upper coupling balls 12 come out ATTENTION Take care that the balls do not get lost they are under spring pr...

Page 20: ...re is a distance of 30 5 mm between the lower edge of taper socket 11 and the top edge of acorn nut 8 Note This dimension has to be observed in any case so that the necessary retaining force of the coupling is achieved for the needle penetration Put spring 5 and bush 6 on the thinner shaft extension of the decoupling bar 4 Push the thicker shaft extension of the decoupling bar 4 into the needle ba...

Page 21: ...needle bar tight and press the decoupling bar 2 into the needle bar Simultaneously pull the yoke 14 down half over the upper balls 6 ATTENTION Now the needle bar and the yoke must not be shifted any more because otherwise the balls being under spring pressure might come out Push the clamping ring 13 down the needle bar until the annular slot 9 lies exposed Place the two securing halves 8 in the an...

Page 22: ...d too Screw on the guide rail 19 It avoids turning of a disconnected needle bar ATTENTION When the needle bar linkage is removed and the needle bar is disconnected the yoke 14 must not be pushed down too far The upper balls 6 might come out unintentionally Note The precise needle height to the hook has to be adjusted after the installation of the linkage according to chapter 2 5 4 Height of the ne...

Page 23: ...e must be close to the support plate 4 but must be freely movable nevertheless Carefully push the support plate 4 with the needle bar linkage 5 on the stop pin 6 Insert the fastening screw 8 and tighten slightly Put the adjusting screw 3 height of needle bar linkage next to the stop pin 6 and secure with counternut 7 Tighten the guide plate 1 with the two screws 2 Insert the needle and align the n...

Page 24: ... Push the thread puller 11 on the pins 9 and 12 and tighten with screws 10 and 13 Adjust the thread puller see chapter 2 10 22 9 10 13 12 11 ...

Page 25: ... the needle bar linkage 3 Unscrew the screws 1 and take off the head cover 2 Check the distance of 0 2 mm between yoke 4 and needle bar linkage 3 A feeler gauge of size 0 2 mm must be easily movable between yoke and needle bar A feeler gauge of size 0 4 mm must jam noticeably Correction Unscrew the screws 1 and take off the head cover 2 Slightly loosen screw 5 at the support plate Loosen the count...

Page 26: ...oving upwards Correction Unscrew the screws 1 and take off the head cover 2 Activate the adjusting program Checking the needle and center knife engagement see Programming Instructions chapter 6 3 6 Press key F 5 Turn the handwheel in rotation direction until the needles engage mechanically Press key F 5 Turn the handwheel in rotation direction until the needles disengage Turn the screws 5 and 6 un...

Page 27: ...t switched off Standard checking The needles should penetrate in the centre of the holes of throat plate 3 Insert new needles Slowly move the needle bars down by handwheel Check the position of the needles in the needle hole Correction Loosen the screws 2 Shift the needle bar linkage laterally in such a way that the needles are in the centre of the needle holes Tighten the screws 2 25 3 2 1 ...

Page 28: ...f the needle bar and hold it pressed Switch off the needle bar by turning the handwheel Keep on turning the handwheel The actuated needle bar switches off Keep on turning the handwheel until the needle bar is in position down Loosen the screw 4 Unscrew the needle holder 2 from the needle bar Screw in new needle holder Adjust the height of the needle holder see chapter 2 5 4 Tighten the screw 3 Che...

Page 29: ... the hook shaft journal Check whether the flange surface 1 of the hook shaft abuts on the measuring bush 2 of the gauge Correction Swing the machine head upwards see chapter 2 1 Remove the plastic stoppers 6 Loosen the screws under the plastic stoppers Loosen the screws 5 Push the flange surface 1 of the hook shaft under the measuring bush 2 of the gauge For this purpose put a screwdriver under th...

Page 30: ...tly Loosen the clamping screws of the worm wheel 4 slightly Shift the worm wheel 4 axially The distance between the worm wheel 4 and the inner side of the hook case must amount to 0 3 mm At the right hook case the distance must be on the right of the worm wheel and at the left hook case on the left of the worm wheel Measure the distance with a feeler gauge Adjust the gear clearance by turning the ...

Page 31: ...obbins Bring the machine head in looping stroke position by handwheel and arrest it with the locking peg Check the position of the hook tips to the needles Correction Remove throat plate bobbin case top parts and bobbins Swing the sewing machine head upwards Remove the plastic stoppers 2 Loosen the screws under the plastic stoppers Lock the machine in looping stroke position Turn the hook manually...

Page 32: ...tion Danger of injury Switch off the main switch Check and adjust the height of the needle holders only with the sewing unit switched off Caution Danger of injury Danger of cuts Do not reach into the center knife area when working at the needle holders Remove the throat plate Move the needle bar in looping stroke position Put the locking peg through the drill hole in the machine arm The locking pe...

Page 33: ...ove the needle bar in looping stroke position and arrest it with the locking peg It should be possible to push the measuring bridge under the adjusting pin 4 with the smallest possible clearance Unscrew screw 8 Set the height of needle holder 9 correspondingly For this purpose turn the needle holder A complete rotation 360 is possible Align the needle holders The fronts of the needle holders must ...

Page 34: ... 1014 Caution Danger of injury Switch off the main switch Check and adjust the distance between hook tips and needles only with the sewing unit switched off Remove the throat plate Move the needle bar in looping stroke position Put the locking peg through the drill hole in the machine arm The locking peg must snap in the groove of the arm shaft crank Check the distance between hook tips and needle...

Page 35: ... holder as far as it will go Swing the machine head upwards Loosen screws 9 and 10 Shift the hook support 8 laterally The hook tip should slightly touch the measuring surface 14 of the adjusting pin 5 but must not displace it Tighten screws 10 Tighten screws 9 Mount the bobbin case bottom parts and the hook cover Screw on the throat plate 33 13 12 11 5 10 9 8 14 ...

Page 36: ...of 0 1 mm between the hollow groove of the needle and the hook tip 5 Caution Danger of injury Switch off the main switch Check and adjust the needle protection only with the sewing unit switched off Move the needle in the hook tip area and check whether it abuts on the needle protection Correction Screw off the throat plate Remove the hook cover and the bobbin case bottom parts see chapter 2 5 5 L...

Page 37: ...force when removing the bobbin case bottom part Unscrew the fastening screws 5 of the hook Lift and remove the hook from the hook shaft Put a new hook on the hook shaft The position of the hook on the hook shaft is determined by the arrangement of the drill holes at the hook bottom Thus it is guaranteed that following the looping stroke the hook tip is at the level of the middle of the needle agai...

Page 38: ...r of injury Switch off the main switch Check and adjust the bobbin case holding wire only with the sewing unit switched off Standard checking Between the edge 1 of the holding lug and the edge of the throat plate cutout there must be a thread passage slot of 0 6 mm to 1 mm In this position the edge 2 of the bobbin case top part is approximately parallel to the throat plate The holding wire 6 must ...

Page 39: ... wire 1 must abut in front of edge 2 of the bobbin case top part 9 ATTENTION During the rotary motion of the hook the back of the hook must not hit the holding wire 1 Adjust the height of plate 5 correspondingly Tighten screw 6 Loosen screw 4 Shift the plate 5 The distance between the holding lug 7 and the edge of the throat plate cutout must amount to 0 6 mm to 1 mm Tighten screw 4 37 1 2 9 3 4 5...

Page 40: ...he adjustment program see Programming Instructions chapter 6 3 1 ATTENTION The bobbin thread monitor is only effective when the function is activated see Programming Instructions chapter 6 2 Machine parameters Switch on the main switch Activate the adjustment program Adjusting the bobbin thread monitor see Programming Instructions chapter 6 3 1 Remove the bobbin case top part with bobbin Insert an...

Page 41: ...n arrow Correction Clean the lenses of the light barriers 2 and 6 as well as the reflection faces 7 of the bobbin hubs with a soft cloth Loosen the clamping screw 1 and 4 respectively Align the light barrier 2 and 6 respectively by a minimum rotary motion on the holders 3 or 5 The infrared ray of light barrier 2 or 6 must hit the bobbin hub through the light window in the bobbin case without hindr...

Page 42: ... screws 3 and 5 Pull the driving motor 2 to the back out of the eccentric 4 Installing the driving motor Push the driving motor 2 into the eccentric 4 with the shaft to the front Align the motor in parallel position to the upper shaft and in central position to the center knife guide Screw the motor tight with the fastening screws 3 and 5 Tighten the screws at the eccentric 4 keeping a distance of...

Page 43: ... clamping screw 6 between switching cylinder and drive shaft Pull the switching cylinder out upwards Installing the switching cylinder Insert the switching cylinder from above Tighten the clamping screw 6 between switching cylinder and drive shaft Push the motor to the front and push the motor shaft into the eccentric 1 Screw the motor tight with the fastening screws 5 Tighten the screws at the ec...

Page 44: ...nter knife 3 to the bottom dead centre with the eccentric at the driving motor Check whether the edge 2 of the knife stands above the stationary knife not more than 1 mm Correction Placing the knife holder in parallel position Move the center knife to the bottom dead centre with the eccentric at the driving motor Loosen screw 8 Turn the knife drive shaft 7 in such a way that the center knife is in...

Page 45: ...nst the stationary knife in the throat plate The center knife must abut in parallel position and with slight pressure Tighten screws 5 and 6 Make a cutting test For correction place the center knife in parallel position by slightly turning the knife drive shaft 7 to the left 43 4 3 6 5 8 7 ...

Page 46: ...are slack when the needles penetrate the fabric it may happen that the needles prick the threads when moving down Turn the handwheel forwards slowly and watch the thread controller springs at the moment of the needle penetration Correction of the spring travel Loosen screw 1 Adjust the regulator 3 by turning Tighten screw 1 Correction of the spring tension Loosen screw 1 Turn bush 2 Turn in clockw...

Page 47: ...hreads are clamped at the clamping collar 1 and cut off by knife 4 After the first stitches of the next seam the clamped needle threads are released By means of the springy clamping sheet 1 the thread catcher 3 abuts flat on the knife 4 Thus the knife is automatically in parallel position Function check Call up the adjustment and test program Selecting the output elements see Programming Instructi...

Page 48: ...ce the thread catcher 3 has to be exchanged too Exchanging knife and thread catcher Screw off the complete thread catcher from the machine head Unscrew screws 6 Remove knife 5 Unscrew screws 7 and remove the guard plate 8 Unscrew screw 4 on the rear Take off the needle thread catcher 3 Insert new thread catcher and tighten with screw 4 Put on new knife 5 and tighten with screws 6 Set the dimension...

Page 49: ...c between the needles Adjust the height of the thread catcher so that the dimension between sliding sheet and lower edge of the needle thread catcher is 27 1 mm Put on the guard plate 8 The guard plate 8 has to be adjusted in such a way that the distances of 1 mm and 0 5 mm are kept when the center knife is in the lower dead centre Tighten the guard plate 8 with the screws 7 47 ...

Page 50: ...throat plate It opens pneumatically The hook threads are pulled between the throat plate panel and the open thread clamping sheets 3 Close the spring clamping sheets The hook thread scissors 2 cuts the hook threads off In every working cycle the hook thread scissors 2 is cleaned by an air blast This avoids clamping of fluff and thread tails Caution Danger of injury Switch off the main switch Adjus...

Page 51: ...ylinder 5 determine the opening width of the spring clamping sheets If the spring clamping sheets 3 are opened pneumatically both hook tips must move by with a safe distance Correction Loosen screw 6 Align the openings of the hook thread scissors 2 centrally to the thread grooves of the throat plate Tighten screw 6 Loosen screw 8 Adjust the height of the hook thread scissors The top side of the ho...

Page 52: ...tput element y29 Engage the thread clamps by pressing the function key F4 Turn the handwheel slowly and check the distance between hook tips and thread clamps If necessary align the limiting sheets 4 correspondingly Disengage the thread clamps by pressing the function key F4 Regulate the air blast for cleaning the hook thread scissors Compressed air is supplied via the connection Y30 The butterfly...

Page 53: ...dle thread quantity pulled out must be as large as to comply with the following conditions At the sewing start the needles moving downwards must not pull the needle threads out of the needle thread clamp At the same time a tight stitch formation has to be guaranteed at the sewing start and the thread puller must not touch the folding station Correction Loosen counternut 3 Adjust the stop width of ...

Page 54: ... segment 5 should amount to approx 0 5 to 1 0 mm Correction Loosen counternut 1 Adjust the distance between synchronizer 2 and the maximum outer diameter of cam segment 5 Dimension 0 5 to 1 0 mm Tighten counternut 1 Turn the sewing machine in position Thread lever at top dead centre Loosen screws 4 Turn the cam segment 5 in such a way that the switching cam 3 is positioned exactly on the synchroni...

Page 55: ...Ignition point 150 C DA 10 is available from the DÜRKOPP ADLER AG sales offices under the following parts numbers 2 Litre Container 9047 000013 5 Litre Container 9047 000014 Checking the oil supply in the oil reservoir 3 for lubrication of the machine head Raise the machine head see chapter 2 1 The oil level in the oil reservoir 3 must not drop below the marking Min If necessary fill up oil up to ...

Page 56: ...usted by the manufacturer with the screws 7 and 8 It should be reduced or increased in special cases only Adjust the screws 7 and 8 Screw the screws in less oil Screw the screws out more oil ATTENTION Do not screw in the screws too deeply The oil wick may be damaged 54 8 7 ...

Page 57: ... 1 mm When the transport carriage has gone back so far that the switching screw 3 stands centrically above the switch 1 there must be a distance of 2 mm between the transport carriage 4 and the stop 5 The fine adjustment is carried out during the feeding clamp adjustment see Service Instructions chapter 4 5 On this occasion the stop has to be corrected too Caution Danger of injury Switch off the m...

Page 58: ...56 7 6 7 4 3 1 9 3 8 5 4 2 1 ...

Page 59: ...ll the transport carriage 4 to the front until the switching screw 3 between the holding arms 9 is accessible Loosen the counternut at the switching screw Adjust the height of screw 3 Distance between switching screw and fastening surface 16 mm Tighten the counternut Push the transport carriage 4 to the very back Set a distance of 1 mm between limit switch 1 and screw 3 3 1 3 Stop for transport ca...

Page 60: ... Consequences of a too high toothed belt tension Reduced durability Noisy running Consequences of a too low toothed belt tension No faultless meshing between belt teeth and disc toothing The teeth may skip over under load Non uniform stitch lengths Loss of steps possible Unscrew screws 7 and take off the covering cap 6 Place the test load in the middle of the toothed belt e g with the help of a sp...

Page 61: ...Correction Unscrew screws 7 and take off the covering cap 6 Set the toothed belt tension with nut 10 59 10 ...

Page 62: ...hed belt clamp 4 Pull the toothed belt out of the casing Putting in a new toothed belt piece goods minimum length 1 47 m Loosen the counternut at the clamp bolt 9 and turn back the tension pulley 8 Lay one end of the toothed belt on the toothed belt wheel of step motor 5 and pull it until the end reaches the toothed belt clamp 4 Lay the other end of the toothed belt around the tension pulley 8 and...

Page 63: ...th needle holders is considered as the middle of the pocket opening For adjusting and checking the folding and cutting tools the measuring line 2 has to be marked on the table top The course of the measuring line is parallel to the feeding direction with a distance of 125 mm to the cutting line Generating the measuring line Mark the measuring line between the two markings 1 and 3 on the table top ...

Page 64: ...2 Push the feeding clamps into the pick up folder area Check the parallel position of the inner edge of the feeding clamps to the auxiliary line 2 Correction Loosen the tightening screws 6 slightly Set the feeding clamp 5 in parallel position by means of the Allen screws 7 and 8 SW 2 For this purpose please proceed as follows Turn the Allen screws 7 and 8 to the right or to the left until parallel...

Page 65: ...ges of the raised feeding clamps and the fabric sliding sheet should amount to approx 20 mm on the left and on the right In case of class 745 34 A with endless zipper the distance is 17 mm on the left and on the right Push the transport carriage under the machine arm Check the stroke of both feeding clamps Correction Loosen counternut 6 at the lift cylinder 5 Turn the piston rod 8 in the actuator ...

Page 66: ...of the workpiece Caution Danger of injury Check and adjust the feeding clamps with utmost caution when the sewing unit is switched on Uncouple the pneumatic coupling for the locking sheets Switch into the pocket programs with function key F1 Select the program for quick clamp adjustment with the cursor keys ï or ð Attention Danger of breakage Select the corresponding clamp position according to th...

Page 67: ... Start the sewing operation and check the distance between the outer edges of the folder sole and the inner edges of the feeding clamps Correction Set the stop screws 4 with the knurled nuts 3 65 ...

Page 68: ... feeding clamp see chapter 6 Example Version A Spacing A sewing length 15 mm Consequently the front edge of the feeding clamp must have the dimensions 111 180 15 306 mm from the middle of the needle Measure the difference between the actual position and the determined nominal position Switch off the main switch Correct switch 1 by the difference Correct the rear stop guide 5 Switch on the main swi...

Page 69: ...elect the pedal mode Mode 3 from the pocket parameters Select the mode Pocket bag Blowing of pipings Mode 2 Load piping and pocket bag as instructed Start the loading process and step on the left pedal until the piping strip is fed and the folding sheets are closed Loosen the clamping screws 2 and adjust the blowing pipes 3 in the folding sheets by turning Adjust the blowing air pressure at the th...

Page 70: ...all four corner knives are at first brought in a basic position Loosen screw 6 Turn the corner knife holder 2 in such a way that the face side 3 is in a line with the face side 4 of the knife support 5 Tighten screw 6 Adjust the other three knife holders as described Adjust the grub screw 7 in such a way that the edges of the opposite knives have a distance of 0 1 to 0 3 mm Grub screw 7 to the rig...

Page 71: ...quences of a too high toothed belt tension Reduced durability Noisy running Consequences of a too low toothed belt tension No faultless meshing between belt teeth and disc toothing The teeth may skip over under load Non uniform corner stitches Check the belt tension with a spring balance Correction Loosen Allen screw 3 Adjust the belt tension with core pin 2 Tighten Allen screw 3 69 1 3 2 ...

Page 72: ...hed off Standard checking The corner incisions must be symmetrical to the seams Adjust the maximum sewing length at the control Iron a piece of interfacing on a workpiece By this the corner incisions become better visible Sew a test seam Check seam and cutting pattern Correction of the corner incision at the seam end Swing the corner knife station 1 out completely 70 1 ...

Page 73: ... corner knife station back Correction of the corner incision at the seam beginning Loosen the screw 5 slightly Adjust the corner knife station with Allen screw 4 ATTENTION Observe the position of the eccentric Setting range Tighten screw 5 Sew a test seam Check seam and cutting pattern 71 3 2 5 4 ...

Page 74: ...be as close to the seam as possible but must not cut it Adjust the maximum sewing length at the control Sew a test seam It is advisable to iron a piece of interfacing on the workpiece before By this the corner incisions become better visible Check seam and cutting pattern Loosen screw 6 Adjust the corner knife holder 2 correspondingly Tighten screw 6 Adjust the other three knife holders according ...

Page 75: ...ructions chapter 6 3 5 Check the corner knife distance See Programming Instructions chapter 6 3 5 1 Check the left front corner knife See Programming Instructions chapter 6 3 5 2 Check the left rear corner knife See Programming Instructions chapter 6 3 5 3 Check the corner knife motion See Programming Instructions chapter 6 3 5 4 Machine parameters corner knives See Programming Instructions chapte...

Page 76: ... be ordered under the following order numbers Set of corner knives Order number Needle distance 10 mm 2 x 0745 339100 2 x 0745 339110 Needle distance 12 mm 2 x 0745 339120 2 x 0745 339130 Needle distance 14 mm 2 x 0745 339140 2 x 0745 339150 Needle distance 16 mm 2 x 0745 339160 2 x 0745 339170 Needle distance 20 mm 2 x 0745 339200 2 x 0745 339210 Swing the corner knife station out Loosen screw 2 ...

Page 77: ...stening positions of the lasers are described in chapter 6 1 An adjustment template is available under order number 0745 290020 Spacing A 1 Marking of the front positioning point 3 Middle of pocket opening 5 Marking of the rear positioning point 6 Measuring line 7 Needles 8 Cutting line 2 Auxiliary line for positioning 4 Auxiliary line for positioning Spacing A Class Sewing length mm Spacing A mm ...

Page 78: ...he measuring line 6 must amount to 125 mm Loosen clamping nut 9 and 10 slightly Align distance and angle of the laser module to the cutting line 8 by shifting and turning Tighten clamping nut 9 and 10 Loosen clamping nut 12 slightly Align the laser line by turning the laser 11 Tighten clamping nut 12 again After adjustment of the markings please consider the following in any case Check the marking...

Page 79: ...erisk 1 2 3 4 5 6 7 8 Sewing test Mark the desired seam beginning on the workpiece by a chalk line Position the workpiece chalk line at marking 1 Start the sewing operation The seam must start at the chalk line For correction align the marking 1 anew after loosening its holders Proceed in the same way with marking 2 Light marking 5 seam end Switch on the rear positioning point at the control Provi...

Page 80: ... in front of the arm it must snap in safely Swing out the swivel arm 1 with the light barriers Swing the swivel arm back and check the pressure of the locking screw 4 Check the position of the swivel arm to the machine head Correction Loosen counternut 3 Turn locking screw 4 Clockwise higher locking pressure Counter clockwise lower locking pressure Tighten counternut 3 Loosen the counternut at scr...

Page 81: ...amming Instructions DAC Cl 745 34 Aligning the light barriers chapter 6 3 4 The following adjustments have to be made Prepare the sewing unit and the feeding clamps Align the light barriers in case of sewing unit with two light barriers for automatic slant recognition Sewing unit with two light barriers flap positioning on the left or on the right Sewing unit with one light barrier 79 ...

Page 82: ...ondition The feeding clamps are aligned to the folder sole see chapter 4 4 Correction Select the output element y30 in the multitest system Pull up the feeding clamps in the air nozzle area and lower with y9 y11 Slightly loosen the screws 2 and turn the air nozzle holder in such a way that the air stream hits the reflected foil be careful not to displace the light barrier position Consider the lat...

Page 83: ...the cylinders 2 on the machine arm and the inner side of the folding station plate 1 there should be a distance of 60 mm 0 5 Measure the distance between the folding station plate 1 and the bores of the cylinders 2 when the loading station is swung in Correction Push the covering cap to the back Loosen the bolt Turn the nut 5 and shift the bolt 6 in the guide Turn the nut 5 to the left the bolt 6 ...

Page 84: ...th Push the feeding clamps to the back Lift the sliding sheets 3 at the front and swivel them to the left Check the height of the base plate Correction Sewing machine head right side Remove the cover 4 Loosen the counternuts 6 and 8 Turn the screws 5 and 7 equally with an Allen wrench Tighten the counternuts 6 and 8 Sewing machine head left side Swing the sewing machine head upwards see chapter 2 ...

Page 85: ...ont and swivel them to the left Check the height of the vacuum plate as to the table top Caution Danger of injury Switch off the main switch Adjust the vacuum plate only with the sewing unit switched off The vacuum plate is connected with the table plate support by four core pins 2 Turn the core pin 2 Clockwise Vacuum plate higher Counter clockwise Vacuum plate lower Readjust the support bolts 7 8...

Page 86: ...c sliding sheets and the throat plate Check the height of the throat plate Correction of the sliding sheet Loosen the screws 4 and 6 from the locking peg 5 through the drill holes in the sliding sheet Shift the locking peg to the left or to the right Tighten the screws 4 and 6 Put the fabric sliding sheet on again and check the distance to the throat plate Adjust the second locking peg as describe...

Page 87: ...nd mount the folder only with the sewing unit switched off Standard The folder 3 has to be pushed upwards until it abuts on the clamping collar 1 The pin 5 must stick in the drill hole of the operating lever 4 Correction Loosen screw 2 Push the folder 3 upwards as far as it will go Tighten screw 2 85 5 4 1 2 3 ...

Page 88: ...e folder can be aligned as to the middle of the pocket opening 3 and parallel to the measuring line 1 Deduct the piping width a and half the needle distance NA from the dimension 125 mm Example from the sketch 125 mm a 1 2 x NA x 125 mm 5 mm 1 2 x 12 mm 114 mm Check the distance of the folder sole to the measuring line 1 Table Dimension a NA a 10 4 12 5 14 6 16 6 5 20 8 5 Correction of the paralle...

Page 89: ...e must still be some clearance between the guide roller 7 and the highest point of the guide groove 6 Press the folder down to the fabric sliding sheet by hand For this purpose turn the stop 8 back if required Check the air gap between guide groove 6 and guide roller 7 Lift the folder up to the upper stop 3 Check the air gap between guide groove 6 and guide roller 7 Correction Swing the folding st...

Page 90: ...d the distance between the folder sole and the sliding sheet amounts to approx 1 2 mm dependent on the fabric The incorporated spring presses the folder back so that the piping strip is safely seized when sewing during the last section of the backward movement the slewing cylinder is pressureless Turn the stop screw 10 in such a way that if the folder is lowered the stop screw 10 abuts on the stop...

Page 91: ...s lowered the needles must stick in the needle holes of the folder sole 1 without hindrance without being pushed out of the way When the center knife 3 enters into the center knife protection 2 the rear knife edge 7 must be flush with the rear edge of the knife protection 8 Press the folder down by hand completely Check the position of the folder sole to the needles and to the center knife Correct...

Page 92: ...ingy guide plates can be easily lifted by the fed piping strip or by the flap The height of the guide plates over the soles has to be set in accordance with the fabric Lower the folder Check the position of the guide plates to the needles Check the spring pressure of the guide plates Correction Aligning the guide plates Loosen screws 4 Loosen core pin 7 Adjust the guide plates in longitudinal dire...

Page 93: ... the toothed belt only with the sewing unit switched off Removing the toothed belt Unscrew the screws 2 and take off the clamping plate 4 Pull off and remove the toothed belt 5 from the idlers 3 and 6 and from the drive gear 1 Putting on the toothed belt Place the toothed belt 5 on the idlers 3 and 6 and on the drive gear 1 Put on the clamping plate 4 and tighten with the screws 1 Observe the posi...

Page 94: ...used folder belongs to the selected sewing program In case of r h single piping switch S22 must be actuated and in case of l h single piping switch 23 must be actuated The distance between the switches and the switch lug 3 should amount to approx 1 mm Check the distance between switch lug 3 and switch 2 Correction Slightly loosen screw 1 Adjust the distance between switch lug 3 and the switches S2...

Page 95: ...nt the folder only with the sewing unit switched off Standard Folder 2 is positioned correctly when the fastening screw 1 pushes into the insertion bore of pin 3 Correction Loosen screw 1 Pull the folder 2 out Check whether the insertion bore of pin 3 points towards the fastening screw 1 Reinsert the folder and tighten with screw 1 93 1 2 3 ...

Page 96: ...educt the piping width a and half the needle distance NA from the dimension 125 mm Example from the sketch 125 mm a 1 2 x NA x 125 mm 5 mm 1 2 x 12 mm 114 mm Check the distance between folder sole and measuring line 1 Correction of parallel position Loosen screw 6 slightly Align the folder sole in parallel position to the measuring line 1 with the help of a measuring rule Tighten screw 6 Loosen sc...

Page 97: ...der sole without hindrance without being pushed out of the way When the center knife 3 enters into the knife protection 2 the rear knife edge 4 must be flush with the rear edge of the knife protection 5 Correction Folder 1 is slightly adjustable in its longitudinal direction Loosen screw 6 once again Shift the folder 1 in longitudinal direction Make sure that the sole is in parallel position to th...

Page 98: ... have to be close beside the needles but must not touch the needles or the needle block Check the position of the guide plates Check the spring pressure important with regard to the folding and seam quality Check the free movement of the needles 2 and needle block 3 with regard to the guide plates Correction Adjusting the guide plate height Loosen nut 5 Adjust the guide plate height with core pin ...

Page 99: ...g the folding station out a little Press the folder 1 down by hand It must be possible to press it down to the sliding sheets Release the folder The folder must be lifted by the spring Correction Swing the folding station out Loosen screw 3 and adjust it in the slotted hole in such a way that the folder is safely lifted Tighten screw 3 Swing the folding station back and let it snap in Stop for the...

Page 100: ...98 257 5 mm 3 2 1 4 117 5 mm 1 3 10 11 9 8 7 6 3 5 12 ...

Page 101: ...rogram Checking the pick up folder without feeding clamp see Programming Instructions chapter 6 3 8 Press function key F5 The mounting plate for the pick up folder moves in vertical position and lowers Position an angle 1 at the face side 2 of the mounting plate Measure the distance between angle 1 and needles Position the angle at the right side of the mounting plate 3 Measure the distance betwee...

Page 102: ...itch Activate the adjustment program Checking the pick up folder without feeding clamp see Programming Instructions chapter 6 3 8 Press key F5 The pick up folder 8 moves in vertical position and lowers down to the fabric sliding sheet Slightly loosen screws 1 and 4 Align the folder sole laterally as to the middle of the pocket opening see chapter 12 2 As an aid you can use a ruler positioned at th...

Page 103: ...in such a way that when the pick up folder is lowered both soles are flush at the connecting surface seen from the side For this purpose turn the self locking grub screw correspondingly Check that both soles are flush at the connecting surface 2 seen from the side Turn the self locking grub screw 1 101 2 1 ...

Page 104: ... 3 at the mounting plate Shift the lowered pick up folder in sewing direction so that there is a distance of 0 5 mm between folder and pick up folder Take care that the sole of the pick up folder rests on the fabric sliding sheet over its whole length Tighten the screws 3 102 3 0 5 mm ...

Page 105: ...2 should amount to approx 0 3 0 5 mm The guide plate height above the sole has to be set according to the material thickness flap The standard dimension is 8 mm Correction Loosen four nuts 1 Adjust the guide plates laterally in such a way that the inner surfaces of the guide plates at the pick up folder and the folder are flush Adjust the guide plate height so that there is a distance of 8 mm betw...

Page 106: ...ack so that the piping strip is safely seized when sewing during the last section of the backward movement the slewing cylinder is pressureless Switch on the main switch Activate the adjustment program Checking the pick up folder without feeding clamp Press key F5 The pick up folder moves in vertical position and lowers down on the fabric sliding sheet Correction Turn the stop screw 2 in such a wa...

Page 107: ...cted sewing program In case of r h single piping the lower switch 22 has to be actuated and in case of l h single piping the upper switch 23 must be actuated The switches are actuated by a screw screwed in the pick up folder single piping not visible The distance between the switches and the screw should amount to approx 1 mm Check the distance between screw and switches S22 and S23 Correction Loo...

Page 108: ...Notes 106 ...

Page 109: ...nly with the sewing unit switched off Taking off the front toothed belt 1 Mark the connection hoses 4 and separate them from the operating cylinders by unscrewing the threaded nipples Loosen Allen screw 2 Turn the eccentric 3 in such a way that the toothed belt 1 is released from tension Pull off the toothed belt to the front Putting on a new toothed belt 1 Push the toothed belt on both toothed be...

Page 110: ...rds Swing the folding station upwards Unscrew the screws 12 Pull the cylinder 11 apart to the left Loosen the screws at the adjusting ring 13 Take off the adjusting ring Carefully pull off the transfer device to the front Take off the toothed belt 6 from the toothed belt wheels Putting on a new toothed belt The assembly of the new toothed belt and the transfer device is done in reverse order 108 6...

Page 111: ... must not slow down Consequences of a too high toothed belt tension Reduced duration Non uniform cylinder motion Slippage of the eccentric bush Consequences of a too low toothed belt tension No faultless meshing between belt teeth and disc toothing The fabric clamps hit the pick up folder uncontrolled Correction of toothed belt 1 Loosen Allen screw 2 Turn the eccentric 3 Tighten Allen screw 2 The ...

Page 112: ...ere must be a distance of approx 3 mm at the bottom and 5 mm on top The swivel arms 1 and 4 are in vertical position due to the path of the piston rods Activate the test program Selecting the output elements The further procedure is described in the Programming Instructions chapter 6 4 5 Select the output element YC017 The flap feeder swivels in Check the position of the swivel arms 2 and 3 Check ...

Page 113: ...Correction of the shanks Loosen the screws 7 and 8 Adjust the shanks 4 and 6 Tighten the screws 7 and 8 Observe lateral clearance 111 3 6 4 2 8 7 ...

Page 114: ...7 Flap clamp of the feeding clamp 8 Flap clamp 9 Middle of pocket opening 10 Feeding clamp 11 Sliding sheet 12 Folding sheet 13 Flap rest table 14 Pick up folder 112 7 8 11 10 12 9 13 14 8 ...

Page 115: ...ust also be parallel to the measuring line 125 Correction Slightly loosen the screws 1 at the stationary 2 and the movable flap clamp 3 Activate the output element YC017 in the test program Selecting the output elements See also Programming Instructions chapter 6 4 5 The flap feeding devices swivel in Align the stationary and the movable flap clamp parallel to the fabric sliding sheet over their w...

Page 116: ...ut touching it Dimension 0 3 0 5 mm See sketch page 112 Correction of the height Dimension 14 3 mm Activate the output element YC017 in the test program Selecting the output elements See also Programming Instructions chapter 6 4 5 The flap feeding devices swivel in Adjust the stop for the lowered position of the flap clamp lifting device as described in chapter 13 5 3 Loosen screws 1 Turn the swiv...

Page 117: ...Lateral correction Dimension 0 3 0 5 mm Loosen the counternut 5 at the piston rod Turn the piston rod 6 Tighten the counternut 5 If required readjust the shanks 3 and 4 115 ...

Page 118: ...d stop Tighten nut 2 Check the flap clamp height above the fabric sliding sheet Dimension 14 3 mm Correction of the stop flap clamp raised Select the test program Checking the loading operation with feeding clamp See also Programming Instructions chapter 6 4 5 Step on the left pedal until the flap clamps are swivelled in and raised Loosen the nut Turn the screw until the flap clamps are raised hig...

Page 119: ...d so that the stationary flap clamp is flush and parallel to the rest table with a distance of 8 to 12 mm See sketch page 112 Correction of the swivelling width Loosen nut 3 Set the swivelling width by turning the bush 4 Tighten nut 3 Correction of the rest table Loosen screw 5 Turn rod 6 until the rest table is flush with the stationary flap clamp Tighten screw 5 Loosen screws 7 Adjust the rest t...

Page 120: ...t the axle of the toothed belt wheel completely Slip off the toothed belt 3 and take it off from the toothed belt wheel 4 Putting on a new toothed belt 3 Place the toothed belt on the toothed belt wheel 4 Turn the marking point 5 of the slewing cylinder onto rib 6 Place the toothed belt 3 on the other toothed belt wheel in such a way that the screws 7 point to the right in horizontal direction and...

Page 121: ... off and remove the toothed belt 8 Putting on a new toothed belt 8 Place the toothed belt on the toothed belt wheel 9 Insert the toothed belt wheel 12 with levers and axial discs in lever 10 Push on the axial discs Screw on the clamping nut 11 Adjust the lateral clearance Tighten the clamping screw 11 119 8 9 10 12 11 ...

Page 122: ... the lever 4 in such a way that the axle A1 lies in the middle of axle A2 Tighten the screws 2 at the toothed belt wheel Adjusting the position of lever 16 as to the axles A1 A2 and A3 Loosen screw 3 Turn toothed belt wheel 5 and lever 16 in such a way that there is a distance of 90 mm between the outer diameter of the toothed belt wheel 5 and the needle sleeve 17 Tighten screw 3 Adjusting the sto...

Page 123: ...p turning device cannot compensate errors of the feeding device of working method B Mounting the flap turning device Screw on the flap turning device in the center of the slotted holes of the folding station plate by means of the screws 2 3 and 4 Make sure that the thrust bolts 5 6 and 7 have no pretension Aligning the flap clamp of the flap turning device as to the measuring line 125 Loosen the s...

Page 124: ...feeding device have to be flush Correction of the distance to the rest table Loosen the counternut 5 Turn the screw 4 so that the stationary flap clamp 1 stands 20 3 mm underneath the table 2 Tighten the counternut 5 Correction of the lateral distance of the flap clamps Loosen the counternut 7 and set the distance with the adjusting screw 6 Tighten the counternut 7 Correction of transfer flap clam...

Page 125: ...on with feeding clamp key RST and key F2 Step on the left pedal once until the flap turning device is swivelled in Check the lowering depth and the swivelling width 139 5 0 5 mm Standard checking The distance between the stationary flap clamp 3 and the measuring line must amount to 139 5 0 5 mm 123 2 1 3 ...

Page 126: ... depth Loosen counternut 9 ill on the top left corner of page 122 Turn the stop screw 10 ill on the top left corner of page 122 Hint The fabric must be easily displaceable Tighten counternut 9 Align the flap clamp in longitudinal direction parallel to the fabric if required Adjusting the movable flap clamp For a uniform and displacement free clamping the point of the movable clamp 1 should first s...

Page 127: ... at the laser marking 1 aligned in parallel position Adjust the laser marking in such a way that the flap projects from the pocket opening line to the right by the spacing PL1 see sketch opposite for determination of same Align the workpiece The horizontal and vertical lines of the workpiece and the flap must be congruent Carry out the sewing operation Take the workpiece off and turn Check the wor...

Page 128: ...13 9 Error elimination a b c d e 126 2 13 1 4 3 7 6 5 12 11 10 9 8 5 6 ...

Page 129: ...ually gap becomes smaller Tighten the screws 9 10 and 11 Check and readjust if necessary 2 Thrust bolt 8 flush resp screwed in Loosen the screws 9 10 and 11 a bit Screw in the thrust bolt 8 gap becomes larger Tighten the screws 9 10 and 11 Check and readjust if necessary If necessary align flap clamp F in parallel position to the measuring line 125 and the flap clamp B respectively if the flap has...

Page 130: ...vate the adjustment program Checking the pick up folder without feeding clamp Programming Instructions chapter 6 3 8 The pick up folder swivels over the piping cutter Press key 9 The pick up folder is made pressureless and lowers on the rest table by its own weight The pick up folder 2 must easily track between the two centering pins 1 by its own weight Correction Slightly loosen the fastening scr...

Page 131: ...whole length This is necessary so that the piping strip is under tension over its whole length when being notched Lower the pick up folder 11 down on the rest table 12 Check inclination of the rest table Correction Loosen screw 13 and align the piping cutter parallel to the sole of the pick up folder in sewing direction Tighten screw 13 129 11 12 13 ...

Page 132: ... sole of the single piping folder Standard checking The deflector 2 avoids that the piping strip taken up by the pick up folder gets under the sole when the pick up folder lowers The edge of the deflector has to be adjusted parallel to the sole with a distance of approx 5 mm Correction Loosen the screws 1 Adjust the deflector 2 Tighten the screws 1 again 130 2 1 ...

Page 133: ...es can be ordered under the following order number 0745 330460 Correction Cut off the compressed air supply Remove the pick up folder Loosen the fastening screws 2 and remove the single piping stop 3 completely Loosen the knife fastening screws 1 Push the cylinder to the front end position by hand and take off the knife 5 if necessary with the help of a pair of tweezers The new piping knife is mou...

Page 134: ...ould be checked when exchanging the knives In case of pressurized cylinders check the clearance of the guide roller in the guide When adjusted correctly the knife point should have a clearance of 0 2 0 5 mm Correction Loosen the fastening screws 5 and remove the lower cover 6 Switch on the piping knives with the keys F4 and F5 in the test program Checking and adjusting the piping knives See Progra...

Page 135: ...er belt against the upper one through the opening in the rest table by means of a spring balance Loosen 4 motor fastening screws and turn core pin 3 The belt tension changes Tighten the screws 2 again and reinsert the single piping stop Consequences of a too high belt tension Reduced durability of the toothed belts Reduced durability of the step motor Noisy running Consequences of a too low belt t...

Page 136: ...ched off Correction Remove the single piping stop completely See chapter 14 4 Loosen screws 3 and screw off the clamping plate Unscrew screw 1 take off the front idler 2 and remove the toothed belt 4 The new toothed belt is mounted in reverse order When the new toothed belt is mounted adjust the toothed belt tension chapter 14 5 134 4 3 2 1 ...

Page 137: ...ter the feeding clamps have lowered on the jacket front the breast welt is lifted again turned and fed to the flap clamp The maximum sewing length of breast welt pockets is 145 mm 15 2 Aligning the folder Caution Danger of injury Switch off the main switch Adjust the positioning device only with the main switch turned off Carry out adjustments with utmost caution when the sewing machine is running...

Page 138: ...machine is running Correction The positioning device 1 is fastened to the mounting plate 5 Align the mounting plate 5 Description see chapter 12 6 Pick up folder Put the positioning device 1 into the mounting plate 5 and align in parallel position to the measuring line 7 Tighten screw 3 Loosen screws 4 and 6 Align the left edge of clamp 2 in parallel position to the measuring line 7 Tighten screws...

Page 139: ...Standard Between the breast welt positioned exactly as per pattern and the turned breast welt there will be a design related pattern shift This pattern shift is corrected by the stroke of cylinder 2 Sew a test seam Fit out a breast welt pocket turn Check the matching of pattern Correction Loosen screw 1 Adjust the cylinder 2 in its holder correspondingly Tighten screw 1 137 2 1 ...

Page 140: ... the test program Selecting the output elements The further procedure is described in the Programming Instructions chapter 6 4 5 Select the output element YC009 The positioning turning device swivels Check the motions of the positioning device turning device 1 Correction Adjust the throttling valves Throttling valve 2 Turn the turning device in sewing position Throttling valve 3 Turn the turning d...

Page 141: ...the pocket opening At this point it should be approx 2 3 mm above the workpiece in parallel position Correction Loosen screws 3 and 4 Align the height of the assembly strip 5 as well as its parallel position to the fabric sliding sheet Tighten screws 3 and 4 Fine adjustment of the height by turning the piston rod 1 Align the assembly strip 5 by bringing it in parallel position to the center knife ...

Page 142: ...has to be adjusted in such a way that the gripping needle rows stick into the center of the sponge rubber 2 Make sure that the pocket bag is not clamped by the loading angle 4 Correction Loosen counternut 5 Turn the piston rod 6 correspondingly Tighten counternut 5 Correction of the table Slightly loosen the counternuts 1 Adjust the table Tighten the counternuts 1 If necessary bring the table in p...

Page 143: ...ting the butterfly valves The feeding motion should be rapid but not abrupt Adjust the throttling valves 5 and 6 Throttling valve 5 Lifting the needle rib Throttling valve 6 Lowering the needle rib 141 8 7 5 6 9 12 ...

Page 144: ... well as to the front in the area of sewing start Adjusting the clamping plate 2 The clamping plate 2 is held by a magnet Adjust the clamping force by means of the magnet The adjusting screw is located underneath the table top Adjusting the downholder 3 Loosen the screws 5 at the clamping collar 6 Adjust the height of the downholder 3 When the pedal is actuated the extended piston rod should just ...

Page 145: ...e fixed to the rear fastening screw threads 3 of vacuum plate 5 towards the sewing machine Assembly on sewing unit 745 34 working method B The completely mounted waistband clamp 1 and the needle rib 2 are fixed to the front fastening screw threads 4 of vacuum plate 5 towards the operator Adjustment Align waistband clamp 1 and needle rib 2 as to the bore holes in the sliding sheet 143 1 4 3 2 1 5 3...

Page 146: ...ng the height of the counter holder When the stacker is open the counter holder 7 stands below the support for stacked goods 2 The distance y between the counter holder 7 and the support for stacked goods 2 is adjustable from 30 to 170 mm For workpieces which are insufficiently clamped by the stacker on the inlet side a smaller distance y has to be selected Loosen both clamping screws 8 Adjust the...

Page 147: ...145 1 2 3 2 3 4 5 9 10 4 5 6 7 1 8 ...

Page 148: ...tance Correction Loosen clamping screw 11 Raise and press down the stacker respectively Tighten clamping screw 11 16 3 6 Stacker earthing cable Fasten the earthing cable 12 with the enclosed wing screw disc fan shaped washer and hexagon nut The fan shaped washer must always be positioned between casing and nut 146 11 3 12 ...

Page 149: ... rollers In lowered position both transport rollers 5 and 7 should equally rest on the table top Loosen Allen screws 6 from the back Loosen the core pin 4 Shift the operating lever in such a way that both rollers rest on the table top with slight pressure Tighten core pin 4 and screws 6 Adjusting the butterfly valves Set the lowering and lifting speed at the butterfly valves 1 and 2 The lowering s...

Page 150: ... and 3 Adjust the guides in such a way that the strip is fed precisely Tighten the fastening screws at the guides 1 2 and 3 Adjusting the tape length The tape length at the seam beginning and seam end is set at the control Activate pocket program F1 See Programming Instructions chapter 5 4 Adjusting the tape puller The stops have to be adjusted in such a way that enough tape is pulled for the next...

Page 151: ... the guide plate 2 at the pick up folder as to the guide plate 3 at the folder and to the flap clamps as follows Loosen four nuts 1 Adjust the distance between guide plate 2 and pick up folder in such a way that when the flap feeding clamps are swivelled in the upper clamp is flush to the guide plate point 6 and the rear edge of guide plate 5 has a distance of 0 3 to 0 5 mm to the front edge of th...

Page 152: ... blowing pipe 5 correspondingly The intensity of the blowing air can be adjusted with the throttling valve 2 Adjust the stop 1 for the lateral adjustment of the left feeding clamp in such a way that the clamp runs approx 10 mm to the outside Adjust the stop as per Service Instructions chapter 4 3 Use the clamp adjustment for this purpose Programming Instructions chapter 5 4 The stroke of the raise...

Page 153: ...he feeding clamps to the front Check whether the reflected point is in the center of the reflected foil Check whether the light barrier engages definitely sound and yellow lamp at the underside of the light barrier The green lamp must always shine in engaged and disengaged state Push the feeding clamps back and swing the folding station in Press key 7 The pick up folder lowers down on the sliding ...

Page 154: ... has to be set to mode 5 Blowing the pocket bag on flap See Programming Instructions chapter 5 4 for the selection of parameter Pocket bag Blowing of pipings 16 6 7 Setting the mode Pocket bag on flap The mode Pocket bag on flap has to be set in the machine parameters Then the raised left clamp moves to the loading position shifted to the left by 10 mm See Programming Instructions chapter 6 2 for ...

Page 155: ... and turn it in such a way that the pressure is 4 7 0 2 bar see Part 2 item 6 Select the test program Selecting the input elements RST F3 Select the input element S 24 Set the adjusting screw 4 at the pressure monitor 3 as follows If S24 is indicated Turn screw 4 to the right until the display shows S24 Turn screw 4 slightly to the left until S24 is indicated again If S24 is indicated Turn screw 4...

Page 156: ...il feed holes with oil see Operating Instructions chapter 3 2 X Check the oil level in the oil reservoirs X Check the oil flow at the inspection glass X Check the hook lubrication X Clean the lenses of the bobbin thread monitor X Clean the reflecting foils X Drive unit and transport carriage Check state and tension of the V belts and toothed belts X Clean the filters at the front and at the back o...

Search results

Summary of Contents for 745-34

Reviews:

Related manuals for 745-34

Brands by name

Popular brands

Duerkopp Adler 745-34, Service Instructions Manual

Search results

Summary of Contents for 745-34

Reviews:

Related manuals for 745-34

Brands by name

Popular brands