Minerva 72317-101
Contents
1. 080 141102 384075 161142 192061 441187 043029 120218 342258 233051 112013 264326 317 101 080 080 080 080 980 080 080 080 080 120014 126110 120226 646162 057011 111247 313301 831443 123117 317 101 080 080 080 080 080 080 080 080 080 080 080 080 080 708 120014 335114 648109 744409 124050 120059 744410 111247 341218 413335 337087 635175 120230 130002 2 x 90 mm 5080 5080 5708 120071 436035 130002 2x 80 mm 5080 5080 5080 5080 5080 5708 413333 613493 120226 613492 328110 130002 2 x 20 mm 5080 120457 317 101 080 080 980 080 080 080 080 080 080 080 172014 190614 041270 953192 172016 195041 262040 328178 124050 744409 317 101 S080 111229 5080 413343 S708 130002 2 330 mm 5283 002001 3 5 0 4 8 x 290 5080 342259 080 551154 S080 122007 5080 422213 080 120216 080 814327 080 554093 080 122029 272 032015 980 045504 317 101 S080 120403 080 647229 S324 840271 S080 111251 5080 413332 S708 002105 1 5 120 mm S080 111247 S080 340164 5080 945323 080 551155 311 122007 080 413334 5283 002001 3 5 4 8 x 280 mm S708 130002 2 320mm S080 424051 5283 002001 g 3 5 4 8 x 250 708 130002 2x 300mm S080 120226 S080 436355 080 120006 080 635272 080 120248 080 331162 980 057132. 080 274097 980 057211 080 120550 980 057212 CO ORM 5 gt 5080 120014 TI N SS S080 265037 S080 126110 5x 5522 000006 S080 120410 S080 124050 S080 122029 5315 264294 522 006008 522 000235 5x 5522 006010 025244 317 101 3172109 722 730109 40 794 222012 120692 190346 0798 500088 0907 487519 9822 510001 080 080 TNO TWO 317 101 2 011 5794 222011 345 980 080 080 080 080 080 080 341 345 980 080 080 080 347 321 980 080 080 080 273 080 080 080 080 735 345 980 345 008000 091660 831506 441501 126085 441502 441570 841541 028052 201000 091814 120279 190347 839169 002000 001000 057091 141154 330088 161163 006001 141265 120261 824095 225018 975176 620040 091816 005000 8
3. 101 791995140 4 981 0077 0077 9330 0791 0791 0791 0791 0995 036162 110220 110230 000177 001081 580100 001091 001096 340617 317 101 791995140 5 S413 731023 S548 001000 9081 500010 S080 813481 S413 000500 S413 000400 562 002000 080 829796 980 092220 IC01 0 KW 317 101 092235 265037 953200 264294 006010 000006 025410 685017 006008 1 2 3 4 5 6 7 8 9 317 101 317 043 791 124043 35 S080 667134 S080 667166 134 110 11 x 080 811638 080 651483 317 101 317 046 791 124046 35 080 667141 080 667142 134 No 110 11x 980 061210 080 811656 080 651479 317 101 317 N 007 791 705007 S980 049064 317 N 008 791 705008 S980 049253 317 N 028 791 705028 S980 049254 317 N 029 791 705029 S980 049560 317 N 009 791 705009 980 049276 317 N 011 791 705011 980 049301 317 N 024 791 705024 980 049625 317 N 012 791 705012 S980 049278 317 N 013 791 705013 980 049302 317 101 317 N 014 791 705014 980 049306 317 N 015 5791 705015 5980 049307 317 N 017 5791 705017 980 049437 317 N 018 791 705018 980 049308 317 N 019 791 705019 980 049280 317N 022 791 705022 S980 049277 317 N 026 5791 705026 980 049626 317 101 2066 791995066 080 511109 080 120352 791995074 080 120295 080 635271 080 343096
4. Service manual and parts list 317 101 Minerva Boskovice a s Sokolsk 60 680 17 Boskovice Czech Republic Member of D rkopp Adler Group Tel 420 501 453434 453433 494111 Fax 420 501 452165 http www minerva boskovice com Edition 11 2005 Printed in Czech Republic 735 000038 72317 1011 SINGLE NEEDLE FREE ARM INDUSTRIAL SEWING MACHINE WITH LOWER OSCILLATING NON DROP LIKE FEED IN COMBINATION WITH NEEDLE AND UPPER FEED FOR HEMMING 72317 101 I 522 722 730 109 13 Use of Machine The machine is used for hemming shoe uppers made of natural or artificial leather or of textile The hemming material can be leather textile and plastic Specifications Machinespeed Stitch type Stitch length Stitching Needle Cottonthreads Synthetic threads Hook Presser foot stroke Thickness of sewn work Stitching of transition sections atreduced speed Clearwork space Freearm diameter Weight of machine head Technical description 72317 1011 3 000 stitches per min at stitch length max 4 mm 2 500 stitches per min at stitch length 4 to 6 mm 2 500 stitches per min with synthetic treads two thread lockstitch 0 to 6 mm for textile materials 0 to 4 mm for leather only forward for bartacking a hand lever can be ordered as Equipment No 203 134 R Spec hard chromium plated Nos 90 120 123 x 5 Spec hard chromium plated Nos 90 120 Schmetz 797 CFCF Nos 90 120 134 LGR hard c
5. 12 cident by electric shock To adjust the opening of the upper thread tensioner Fig 12 The opening of the upper thread tensioner is actuated by means of a lever 5 cooperating with a pin 6 acting on a splice plate releasing an extension spring If the opening fails to function the whole thread tensioner is to be pushed some way into the machine after the loosening of the screw 2 in the machine arm The gap between the thread tensioner discs when opened must provide for unobstructed thread passage 18 72317 1011 18 Assembly and adjustment of folder Fig 12 After fixing the folder on the plate by using the two screws bass and nuts it is possible to shift the folder to adjust required distance from the edge of bind The distance is smaller by shifting to the left and bigger by shifting to the right By turning aside the folder it is possible to fine adjust the distance between the needle and the folder in order to create enough space for sewn material This adjustment influences accurate leading of the bind to sewn materials Binding is the sewin operation which quality depends not only on folder production and sewn material but also on skilfulness of worker That s why we recommend to submit sewing samples and consultation with Minerva workers before the agreementsignature Fig 12a 19 72317 1011 MAINTENANCE Machine cleaning Plain machine lines help to keep clean outer machine parts From
6. 5080 112014 317 101 080 080 080 080 080 080 080 080 080 080 080 080 980 080 080 080 080 080 080 080 980 080 080 080 120342 271436 111247 410573 392108 136023 615021 839053 120227 623205 274090 274084 044851 120233 613487 384077 131333 152080 263217 120550 048955 825511 120230 190359 317 101 080 316101 080 156040 S080 260497 980 044853 283 002001 3 5 8 4 8 x 90 mm 708 130002 82x 150mm S080 6012347 S080 274090 S080 392108 S080 392106 S080 120296 S080 630254 S080 328179 S080 322271 708 001001 1 120 S080 613491 080 120410 980 044907 708 130002 82x20 317 101 980 044907 S080 839291 708 130002 2 x 100 mm 5080 422218 5080 413331 5708 130002 2 x 200 5283 002001 3 5 4 8 x 100 mm 5080 111247 S080 310270 5080 111227 080 120266 315 264294 080 828079 980 828080 080 262074 080 195041 980 171037 980 025244 317 101 080 839291 708 130002 2 x 100mm 5080 422218 5080 120226 5708 130002 2x 200 mm 080 120425 080 613486 080 413340 708 130002 82x 150mm 080 413331 080 111247 080 328110 080 613492 5708 130002 2 20 mm 5283 002001 3 5 g 4 8 100 mm 317 101 980 080 080 080 080 080 708 044822 613490 120295 120246 627171 328110 130003 83x20 080 080 080 080 080 980 080 080 080 080
7. 5 72317 1011 Cause Damagedbobbin Too sharp pressure spring on the bobbin case Needle inserted incorrectly Blunt or bent needle Slashed or broken hook point Excessive needle aperture in the feed dog Broken adjusting spring for up per thread tension Needle bar positioned too high or too low Overturned hook incorrect hook course Soiled hook mechanism Feed dog positioned too low Faulty attendance pulling the material Needle too thin with respect to sewn work Needle inserted incorrectly Loosened feed dog Excessive upper thread tension 22 Remedy Exchange IL Exchange the spring Insertit correctly see par 7 page 10 Exchange it see par 7 page 10 Exchange the hook Exchangethefeed dog see par 6 page 15 Exchange the spring and adjust the upper thread tension see par 15 page 18 Adjust it see par 9 page 16 Adjust the hook course see par 10 page 16 Clean it with kerosene Adjust it in height see par 7 page 15 Let the material pass freely Exchange the needle see par 7 page 10 Insert it correclty see par 7 page 10 Check and fix it Adjust it see par 3 page 13 Fault g Heavyandirregularfeeding h Stitch forming below sewn mate rial i Stitch forming above sewn mate rial Insufficient presser 7
8. guides 2 Too sharp hook point 3 Faulty upper thread guiding or faulty needle threading 4 Incorrect upperthread tension 5 Bad needle quality or bent needle 6 The thread size is inadequate to the thickness of sewn material 7 Machine considerably soiled 8 Thread rests wound on the hook 9 The thread is too thin or not strong enough 10 Damaged needle aperture of the feed dog The thread is incorrectly threaded into the bobbin case 2 The thread is too thin or not strong enough 3 The thread is wound incorrectly on the bobbin 21 Remedy Inject some drops of kerosene into all lubrication holes and on the sliding surfaces and let the machine run rapidly so as to clean the lubrication holes in the bearings Then oil the machine carefully with sewing ma chine oil Increase the tension by displacing the electric motor gt Ascertain and exchange them 2 Reapirit 3 Thread the upper thread correct see par 8 page 10 4 Adjust it see par 3 page 13 5 Exchange the needle see par 7 page 10 6 Use adequate thread 7 Unscrew the throat plate clean the mechanism and set the throat plate 8 Remove the thread rests 9 Use adequate thread 10 Amend or exchange the feed dog 1 Thread it correctly see par 11 page 12 2 Use adequate thread 3 Wind it on the bobbin correctly Fault e Skipped stitches f Needle breakage 4
9. lower thread tension has been adjusted correctly the adjustment of the upper thread tension will be sufficient as a rule to restore the de sired quality of stitching To adjust the presser bar pressure Fig 7 The pressure exerted by the presser foot is actuated by the adjusting screw 2 accessibly located on the upper part of the machine arm By turning it to the right to the left you increase reduce the pressure The pressure ofthe presser foot must be sufficient to provide for reliable and continuous feeding even at the top sewing speed On the correct adjustmentof the presser bar depends the uniformity of feeding of the sewn material as well as that of the stitch length Excessive presser foot pres sure results in excessive wear of the whole mechanism and in correspond ing reduction in the service life of the machine 13 72317 1011 adjust vertical stroke of the presser feet Fig 8 The vertical stroke of the presser feet is adjustable so as to meet the feed requirements imposed by various sewn work thickness and the vertical stroke of the small feed foot is always greater than that of the big presser foot depending on the sewn work thickness and on the width of the tape To adjust the stroke loosen the screw 1 on the lever of the drive shaft and dispalce the lever either toward the operator to reduce the stroke of the small presser foot or away from the operator to increase it The stroke of the big pr
10. synthetic thread To insert the needle Fig 4 2 Switch off the motor depress the right side treadle and rotate the handwheel towards you 222 untilthe the bar reachesitstop position i e until ge the greatest possible distance between the nee dle holder and the throat plate has been obtained 3 Sink the presser foot the sewn work loosen the screw 1 ofthe needle bar and insert the needle up to the stop with its long groove to the left of the operator The correct insertion the needle up to the stop can be visually checked in 5 the transverse hole of the needle bar Fix the correctly inserted needle by retightening the screw Each time you inserted a new needle check first whether it is straight in order to ensure that it will pass through the centre of the needle aperture provided in the feed dog Never use a needle chosen haphazardly but choose it with respect to the character of sewn work and to 6 the thread size Warning Before proceeding to exchange the needle be sure to switch off the main 7 switch and hold your feet away from the machine stand treadles in order to avoid accidental machine start by treadle actuation 1 To thread the upper thread Fig 4 Put the bobbin on the bobbin stand unwind a sufficient portion of it and pass it through the thread guide of the bobbin stand then through the thread guides 2 the adjusting spring the thread guide 5 into the eye of the thread
11. take up lever downwards through the thread guide 6 through the aperture of the needle bar and from the left to the right into the needle eye Warning Before proceeding to thread the machine be sure to switch off the main switch and hold your feet away from the machine stand treadles in order to avoid accidental machine start by treadle actuation Fig 4 10 72317 1011 9 To take out the hook bobbin Set the needle bar to its top position push away the hook cover open the bobbin case lock and take the bobbin case out As long as the bobbin case lock is open the bobbin is held in the case Release the lock turn the bobbin case upside down i e with its open side downwards and the bobbin will fall out Warning Before proceeding to exchange the bobbin of the hook be sure to switch off the main switch and hold your feet away from the machine stand treadles in order to avoid accidental machine start by treadle actuation 10 To wind the hook bobbin Fig 5 2 5 Towindthe hook bobbin a bobbin winder adapted to be mounted on the front side ofthe machine arm is available on special order as Equipment No 201 Lead the thread from the bobbin stand through the aperture providedin the bobbin stand arm through the aperture of the thread guide 1 between the braking discs 2 then through the other apertures of the thread guide 1 to the bobbin mounted on the winder shaft and push the wind
12. 00 mm 708 130002 2x 330 mm 5708 130002 2 x 400 mm 708 130002 2x 320mm S080 111251 S080 421352 S321 001000 5562 411000 562 260000 317 101 283 002001 3 5 8 4 8 x 150 708 130002 2 x 300 mm S080 328005 080 111247 980 044726 5708 130002 2 x 80 mm 5980 044702 5080 945328 5980 021343 S080 122008 080 124050 080 337043 080 646137 080 824367 080 120296 080 953191 080 945077 980 044907 080 953052 080 391158 080 120530 980 035501 080 111238 080 112015 080 138009 080 120006 283 002001 3 5 4 8 x 90 mm S708 130002 2x 150mm 317 101 080 349159 311 000220 283 002001 3 5 0 4 8 100 mm 708 130002 2x150mm 630256 112014 328110 384075 120222 825791 263145 035538 318103 141088 413340 152080 120226 733280 338191 141102 627171 512900 613486 630257 570058 111247 814327 122029 733300 060093 120006 120216 032015 045328 511099 130003 83x20 mm S980 045388 272 225001 10 x 1300 mm 317 101 080 120295 080 630255 080 413342 080 111229 080 342260 080 413341 080 613488 283 002001 3 5 4 8 x 100 mm 080 335115 708 130002 2 x 20 mm 5080 120226 5080 328110 080 120296 080 328179 080 161142 080 190346 5708 130002 2x 200 mm S080 630254 S080 274090 S080 392108 S080 612347 S080 322271 S708 001001 1 120 080 613491 5311 733220 5080 630256 5080 338191
13. 2317 1011 Cause Feed dog positioned too low Worn outfeed dog foot pres sure Tensioner discs damaged by up perthread Thethread does notpass smoothly around the hook or catches the bobbin case The upper thread is notthreaded between the tensioner discs Thread broken and caught be tween the tensioner discs Incorrect proportion between the tensions of upper and lower threads Damaged spring on the bobbin case the lower thread is braked insufficiently The lower thread is not threaded under the spring of the bobbin case Broken thread caught under the spring ofthe bobbin case Incorrect proportion between the tensions of upper and lower threads 23 N Remedy Adjust it in height see par 7 page 15 Exchange it Increase the pressure see par 4 page 13 Exchange them and adjust the upper thread tension see par 3 page 13 Clean the hook and adjust the bobbin case Thread it correctly see par 8 page 10 Clean the thread tensioner and adjust it see par 3 page 15 Correct the proportion and check it from time to time see par 3 page 13 Exchange the spring Thread it correctly Remove the thread Correct the proportion see par 3 page 13 72317 1011 Fault Cause Remedy I Lockedhook Thread rests caught in the hook Rotate the handwheel in both direc tions regardless
14. 253 049 254 049 560 049 276 049 301 049625 049278 049 302 049 306 049 307 049437 049 308 049 280 049277 049 626 Suitable for hemming Leather upper with lining Textile shoes for winter season Slippers Leather upper edge of leg portion Textile upper with linning up to 1 8 thick material Slippers Slippers up to 1 7 mm thick material Insole up to 3 8 mm thick material Insole up to 2 8 mm thick material Textile upper with lining up to 1 7 mm thick material Textile upper with lining Textile shoes winter season with warm lining Leather and textile upper with lining For inserting binding made of Chemlon a synthetic material 10 72317 1011 INSTRUCTIONS FOR SERVICING OF MACHINE General instructions Read the instructions ofthe manual carefully and adhere to them During transport and while unpacking the machine proceed in accordance with the instructions and marks on the packing Report any damage which has occured during transport to the railway authorities or to the forwarding agents at once Immediately after unpacking check the contents against the order and report any discrepancies to us We cannot recognize claims submitted at a later date Having transported the machine to its work site remove the preserving grease coating and all impurities from the machine head make sure that no machine part has become loose and that its mechanism is free of any foreign body Lubri
15. 8 980 048955 080 120550 080 190359 080 120259 10 a 4 4 1 2 3 4 5 6 7 8 9 317 101 5980 5080 5080 5080 5080 5080 5080 5080 5080 035540 945294 316102 825963 190347 161163 123117 941119 120227 MO EM 317 101 980 080 080 080 321 080 311 080 080 080 080 323 311 311 080 980 080 080 324 080 080 311 980 980 080 080 080 080 036097 131163 416135 442336 953200 265037 732014 161137 551047 613179 120252 081210 515095 515089 264243 049501 335108 424075 870000 410641 260378 733181 025249 025249 827194 260510 163106 161138 317 101 5522 000235 522 522 522 522 522 522 080 522 522 522 006008 000006 006010 006036 005227 005404 685017 005413 005229 005406 317 101 S791 995140 1 S080 S080 S080 S080 S321 S080 S413 141168 190441 836381 953206 953251 826387 100130 317 101 791995140 2 080 080 080 080 321 080 443 131333 384076 839175 141307 336002 381148 000006 317 101 791995140 3 443 080 080 080 080 080 080 080 080 080 080 080 080 9205 080 0223 080 000006 161142 382098 141129 826298 191108 141133 613561 141123 318069 342136 141141 264159 102788 416146 000486 383022 317
16. al times a day Remove the fluff with a fine brush apply some drops of kerosene to all soiled parts of the hook and its surrounding mechanism let the machine run at high speed then stop it wipe off flushed outdirt and oil the hook with its mechanism This cleaning should be carried out daily in particular after the end of the work shift in order to prevent dirt from drying on the hook and its mechanism Before proceeding to clean the machine unthread it and take the hook bobbin out of the hook Once a week clean the machine thoroughly from all impurities and from settled oil Lubrication places The two principal lubrication places are located on the upper cover of the machine arm One of them is used to refill oil in the oil tank twice a week to one half of the oil level indicator situated on the front part of the macarm The other lubrication places are shown in the lubrication chart 72317 1011 Warning A Before proceeding to clean and lubricate the machine be sure to switch off the main switch and hold your feet away from the machine stand treadles in order to avoid accidental machine start by treadle actuation Amount of oil supplied for hook lubrication The oil coming by means of a wick prevents the hook hrom getting seized After the machine has been put into service check at regular intervals the oil level in the oil tank disposed on the machine arm To observe At the resumption of work after a relatively
17. cate the machine daily Before lubrication always check whether the lubrication places are clean It is advisable to lubricate frequently in small quantities rather than conversely With a hand oil can drip oil into all the holes marked in red Check the oil level on the oil level indicators on the machine arm Clean the machine daily in particular the parts which become choked by impurities fromthe sewn material During the cleaning carefully check whether no machine part has become loose Once a week during thorough cleaning carefully check the whole machine to see that no parts are damaged and that all machine mechanisms operate correctly Any faults ascertained must be repaired immediately Once a year general overhaul should be carried out The machine should be dismantled thoroughly cleaned individual pieces as well as the parts of the electrical equipmentinspected faulty or worn out pieces repaired or exchanged Adhere to the safety regulations Never clean the machine or repair defects until the machineis at rest Do not remove covers or other safety devices The electrical equipment of the machine should be keptin a good and faultless state in accordance with the electrotechnical and safety regulations The lead in cable supplied as a part of the machine has a corss sectio of 4x 1 mm and must be protected accordingly in each phase If the machine is provided with a plug make sure always before plugging in that all switches are o
18. describes adjustments of the type that can be carried out on the work site Larger adjustments requiring more time should be carried out by a skilled sewing machine mechanician Stitch length adjustment Fig 5 The stitch length can be steplessly adjusted from 0 to 6 mm by turning the knob 4 provided on the vertical part of the machine arm By turning it to the right you increase the stitch length by turning it to the left you reduce it For easier handling the reverse stitching hand lever should be slightly pressed downwards during the stitch length adjustment 12 72317 1011 Reversestitching The reverse stitching is obtained by depressing the hand lever downwards When released the lever automatically resumes its previous position and thus restores the forward stitching Thread tension adjustment Fig 7 7a The tension of the upper and the lower thread must be so interrelated that the stitch binding takes place in the median layer of the sewn material To increase the upper thread tension turn the nut 1 to the right clockwise to reduce the tension turn it to the left To adjust the lower thread tension 4 Fig 7a use the screw provided the middle part of the pressure spring of the bobbin case By turning the screw 5 to the right the left you in crease reduce the pressure ofthe spring onthe bobbin case between which and the spring the thread passes and consequently the lower thread tension If the
19. emains Tighten the sleeve screw and check whether the feed step length is the same for forward and for reverse stitching If not readjust it in the above described manner To adjust the function of the adjusting spring Fig 12 To adjust the tension of the adjusting spring 1 loosen the N screw 2 of the thread tensioner bushing 3 and turn with screwdriver the pin 4 of the thread tensioner either to the right to increase the tension or to the left to reduce it then retighten the screw 2 To set the stroke of theadjusting spring loosen the screw of the bushing and turn the bushing either to the left to reduce the stroke or to the right to increase it Retighten the screw and check the adjusting spring for correct function by producing on atest material a few stitches Check also whether the thread as it passes around the hook bottom produces only a slight movement of the adjusting spring and is not tightened 1 Electrical equipment of machine The machine is driven by asynchronous motor with squirrel 3 cage mounted on the stand To reverse the sense of rota tion change over the lead in cable either at the plug or 4 at the terminal board of the motor observe E Any failure of the electrical equipment should be repaired by skilled electrician Warning 2 Avoid any intervention into the electrical equip AN ment ofthe machine but call in an electrician Unqualified intervention involvestherisk ofac Fig
20. er shaft The winderis now operable and as soon the machine is started begins automatically the bobbin winding which the thread is evenly distributed along the whole of the bobbin width As soon as the bobbin is fully wound the stop start lever springs off and the winder shaft automatically gets out of engagement thus finishing the winding 11 11 12 13 72317 101 1 thread the lower Fig 6 Put the fully wound bobbin into the bobbin case and insert the thread end into the notch of the bobbin case then pass the thread end under the pressure spring 1 of this bobbin case with the bobbin and with released lock To catch the lower thread With your left hand grasp lightly the upper thread end without stretching it With your right hand turn the handwheel towards you until the threaded needle reaches subsequently its bottom and top positions thereby catching the lower thread Draw then lightly the upper thread until the lower thread shows through the aperture of the feed dog and lay the two thread ends behind the needle When threaded the machine may be started only after a bit of material has been inserted under the presser foot Both when starting and when finishing the sewing the thread take up lever should be placed in its top position to avoid the risk that the upper thread will thread out and possibly catch in the hook course Fig 6 Sewing the work proper Insertthe material to be sewn under the
21. esser foot holding the sewn pushed to the throat plate is inversely proportional to that of the small foot i e the greater is the stroke of the small presser foot the smaller of the big one The total stroke range of the presser feet can be adjusted by displacing the pin of the connecting rod 3 the groove of the lever 2 The lower is the position of the pin with respect to the pivot axis the smaller is the total stroke range of the presser feet and vice versa N 0 11 ER Aa AN Fig 8 14 72317 1011 Feed dog Fig 9a The feed dog mustbe properly seated and sofixed with the screws 1 as to ensure that the needle passes through the centre ofits needle aperture which must not be burred damaged by thread or needle or other wise damaged since any damage of this kind would unfavourably affect the quality of stitching Fig 9a 0 2 0 3 mm To adjust the feed dog height above the throat plate Fig 9b The height of the feed dog teeth above the throat plate should be adjusted between 0 2 and 0 3 mm For adjustment firstloosen the screw 1 the feed dog support on the lower arm then tighten the screw properly with ascrewdriver Fig 9b 15 10 11 72317 1011 adjust the movement of the needle and the feed foot Adjust the eccentric 4 mounted on the upper shaft see Fig 8 To adjust the needle bar height Figs 7 and 10 The hook must be so interrelated wi
22. ff Never try to repair any defects of the electrical equipment by ourself but call in an expert electrician We cannot assume any responsibility for the consequences resulting from the non observance of these instructions Packing unpacking cleaning and lubrication of machine Packing of machine The machine head is seated in a separate case the stand either in crating or in another case for severe climate conditions Unpacking of machine When taking over the machine from the railway authorities or in the works ascertain whether it has arrived in good order Report any damage which has occured during the transport to the railway authorities or to the forwarding agents immediately The unpacking should be carried out carefully so as to prevent damage to machine parts 72317 1011 Further check the accessories of the machine against the order and report any discrepancy immediately as we cannot consider belated claims To set the machine on stand When unpacking the machine out of the box and when putting it from one place to another always hold it by its arm Remove the protective grease coating and possible impurities and check whether it has no loose parts or foreign bodies on it or in its mechanism After the machine has been brought to its work site set it on the stand and fasten it with four screws to be inserted from the lower side of the stand plate Check the treadles for correct function i e the right side one for actua
23. from the machine arm and from the upper shaft Pass the drive belt 4 through the aperture thus created in the machine arm along the upper shaft and putit the two belt wheels Set the handwheel with its bearing back on the upper shaft in such an angular position that the first screw in the sense of rotation of the handwheel when tightened comes to about on the small flat surface provided on the upper sahft then secure the handwheel with screws mount the V belt on the handwheel mount the upper belt guard and fix it with screws Fig 11 To observe After each mounting or exchange of the drive belt always adjust the hook course as described in the preceding paragraphs of these Instructions To exchange the presser foot First raise the needle and by means of the hand lever the presser bar to their top positions then loosen the presser foot fixing screw and remove the presser foot To insert the presser fooot proceed inthe same way When the new presser foot is mounted check in its lifted position if the needle bar during its reciprocating movement does not collide with the presser foot 17 72317 1011 14 15 16 17 adjust the feed step length Set the stitch length adjustment knob to its zero position loosen the screw of the sleeve of the oblique cylinder and set the ball bearing with the oblique cylinder in the sleeve so asto obtain zero eccentricity of the eccentric visually the connecting rod r
24. hromium plated Nos 90 120 29 5 tex x 3 14 5 tex x 3 PES 25 tex x 1x 2 2b texx 1 x 3 C235 with hand lever 7 5 mm with treadle 9 mm up to 4 mm for leather up to 6 mm for other materials forleather sections thickened up to 5 mm with height difference of 2 mm fortextile sections thickened up to 8 mm with height difference of 2 mm 145 x 100 mm 42 mm 26 5 kg This free arm lockstitch hemming machine is equipped with a rotary hook with horizontal axis mounted at the end of the free arm and driven from the lower shaft by a gearing with ratio of 2 to 1 the lower shaft being driven from the upper shaft by a drive belt with gear ratio of 1 to 1 The stitch length steplessly adjustable from 0 to 6 mm is controlled by arevolving knob situated on the vertical column of the machine arm The machine is designed for forward stitching but canbe equipped with a hand leverfor reverse stitching bartacking The presserfootfeed movementis derivedfrom an eccentric mounted on the upper shaft The drive is transmitted from the electric motor to the upper shaft by a V belt The right side treadle controls the motor clutch the left side one the presser foot lifting The principal parts of mechanisms exposed to increased strain are seated in rolling contact bearings The machine has a wick group lubrication and an automatic hook lubrication Some lubrication places are oiled individually For reasons of security the machine is equipped with a V bel
25. iewing the machine from the side of the handwheel Electrical equipment An electrician connects the machine to the mains 3 x 380 V 50 Hz Switch on the electric motor and check whether the pulley turns in the correct direction shown by the arrow on the cover of the electric motor i e to the left toward the operator If this is not the case the plug of the lead in cable must be taken out and the cable must be switched over on the plug or on the terminal board of the electric motor The incorrect sense of rotation of the pulley is inadmissible Warning Avoid any intervention into the electrical equipment of the machine but call in an electrician Unqualified intervention ivolves the risk of accident by electric shock V belt and its tension Fig 3 The V belt tension can be adjusted by displacing the electric motor inthe groove of its holder after loos ening the four clamping screws The correct belt tension ensures transmission of full power with losses reduced to minimum To check the tension of the V belt depress it lightly in the middle part between the handwheel and the motor pulley if the belt tension is correct the pressed on part will yield some 20 mm sideways Excessive tension of the V belt reduces machine output and increases both the power consumption and the wear of the bearings Set the machine to its opera tive position check the V belt for correct tension and mount the belt guard Before proceeding to any adjust
26. lectric shock Hand reverse sewing lever instalation Fig 2 Itis possible to assembly the lever for hand controlled bartacking We unscrew the screws 1 and put off the cover of the belt Then we slack the screw ofthe cradle 4 through the hole in the arm We shift the reverse sewing shaft towards the worker By shifting hand lever 2 we must be careful not to deform the cradle bar 3 We can check the assembly by eye after unscrewing the rear cover 5 We define the axial will ofthe lever and cradle we adjust the lever to the same position as the machine and tight up the screw 4 We test the sewing and screw up the cover of the belt By pressing of the lever down the sewing direction will be changed After release the lever returns to previous position and the machine will sew in front direction 72317 1011 the machine for sewing General inspection Inspectthe machine thoroughly for loose parts as well as for the presence of foreign bodies With the electric motor switched off depress the right side treadle and rotate the handwheel by hand to see whether it revolves freely and whether the machine is adjusted correctly Further check for correct function the presser foot lifting with the left hand and with the left side treadle reverse stitching by means of the hand lever on the vertical column of the machine arm Sense of rotaion The correct sense of rotation of the machine handwheelis anticlockwise v
27. long interval e g at the beginning of the morning shift it is advisable first to remove the gathered supefluous oil from the hook either by letting the machine run idly for a short period or by producing a few stitches about 20 cm on a test material to prevent the sewn work from getting soiled by oil 72317 1011 Instalation and gearing lighting with transformer Gearing of lighting may be performed by a specialist electrician with the machine unplugged from mains The lamp is assembled on the front part of arm by using the peg The conductor is passed through a hole in the stand and after unscrewing the cover of the transformer it is plugged to 24 V screws and ensured with fastener The cover of the transformer is screwed and the transformer is fastened with added screws o 4 x 25 into pre drilled holes in the bottom side of the machine stand We must make a hole in the motor clamp from the bottom side and screw the outlet P 16 The conductor is fastened under the installed fasteners and screwed to the transformer after passing through the outlet P16 and then it is screwed to the 2 bottom screws of the clamp The cover of the clamp is screwed again By using the added fasteners the conductor is fastened to the arm of the machine and the lamp is adjusted to the suitable position Warning Avoid any intervention into the electrical equipment of the machine but call in an electrician Unqualified intervention ivolves the risk of accident by e
28. ment on the ma chine be sure that it is switched off To lift the presser foot The lifting and sinking of the presser footis actuated by the left side treadle To lift the presser foot and to lock itin the lifted position the hand lifting lever placed at the rear side of the machine arm can alsobe used To sink the presser foot onto the sewn work first slightly depress the left side treadle so as to disengage the locking of the lifted presser foot Fig 3 72317 101 1 Needles and threads The machine requires the use of needles 134 Schmetz 797 CFCF current sizes hard chromium plated Considering the high machine performance and the resulting needle heating itis advised to use hard chromium plated needles The size of the needle to be used depends on the size of the thread since it must pass freely through the needle eye It is advisable to choose a needle sufficiently big to permit free thread passage through the needle eye Only high class threads should be used an S twist one for a the needle and an Z twist one for the hook bobbin A coarse thread or one which has to overcome considerable resistance when passing through the needle eye reduces the machine performance and increases its trouble incidence With synthetic threads it is necessary adequately to reduce the sewing speed and to use only hard chromium plated needles to improve heat dissipation from the area of the needle eye so as to avoid the risk of melting and breaking the
29. of the considerable resistance until the caughtthread rests are cut to pieces Remove them and start the unthreaded machine Let it run for a period then drip two or three drops of sewing machine oil on the hook and finally check the position of the overload release clutch k Bad function of hemming equip Correct it see par 18 page 19 ment V HOW TO USE THIS CATALOGUE AND ORDER SPARE PARTS For effective of the Catalogue carefully study the following information The Catalogue is divided into two sections 1 Instructions for servicing with figures and technical data 2 Tables of spare parts with spare part list Please specify in each order for spare parts a machine type and its production No b the twelve digit No of the part c numberof parts 24 317 101 080 080 080 080 080 080 321 321 080 080 080 080 080 080 080 080 080 980 080 080 311 120233 721181 831478 120409 123117 831442 001000 003000 945100 945188 831456 111251 272039 111247 271462 132153 120266 025287 415024 126069 733620 317 101 S080 123117 S080 313204 S980 041168 080 161138 S080 945358 S080 945316 283 002001 3 5 4 8 x 100 mm 283 002001 3 5 4 8 x 250 mm 283 002001 3 5 g 4 8 x 290 mm S283 002001 3 5 g 4 8 x 360 mm 283 002001 3 5 g 4 8 280 mm 708 130002 2x 180mm S708 130002 2x 200 mm S708 130002 2 2x 150mm 708 130002 2x 3
30. presser foot and fixit by sinking the presser foot then switch on the electric motor and depress gradually the right side treadle In this way the machine is setin motion and the sewing speed increases up to the maximum obtained when the treadle has reached its lowest position By releasing the treadle the clutch of the motor is disengaged the electric motor braked and the machine stopped During the sewing avoid pulling the amterial but guide it only By pulling the material you bend the needle with the risk of breaking it in case of collisions with the edge of the needle aperture of the feed dog Repeated collisions of this kind make the needle aperture burr which in its turn causes thread ruptures At the end of the sewing operation set the thread take up lever to its top position raise the presser foot and take the sewn work from under it When observing the described sequence of actions the machine is ready for next stitching To observe Having put the new machine in use do notcharge itfully from the very beginning During the first two or fourweeks when the machine is running in increase its speed gradually from about 2 500 stitches per min and check carefully its running Throughout this time pay special attention to the machine lubrication By keeping to these rules you will obtain a long service life and perfect precision of the machine even at its full performance INSTRUCTIONS FOR ADJUSTMENT OF MACHINE MECHANISMS This section
31. t guard and a thread take up lever guard Inits basic version the machineis supplied withoutlighting butisfitted with a screw and washerto receive a suspension type lighting available as Equipment No 300 Equipments and their Use Commercial Ordering No designation 317 E 043 791 124033 35 317 E 046 791 124046 35 see table on page four Z066 791 995066 Z074 791 995074 3172109 722 73010940 2012 794 222012 2 011 794 222011 72317 1011 Basic hemming set Stitching set for stitching without hemming equipment Hemming equipments Attachment cpl for hand wheel Parts for backtacking High mortality spare parts kit in a plastics box Halogen lighting 12 V 20 W contains transformer Suspension type lighting of material Upper leather Textile with selvedge One sided folded textile Double sided folded textile Synthetic material Equipment Ordering No No 317 007 317 N 008 317 028 317 029 317 009 317 011 317 N 024 317 N 012 317 013 317 N 014 317 015 317 N 017 317 N 018 317 N 019 317 N 022 317 N 026 72317 101 1 Table of hemming equipments S791 705007 S791 705008 791 705028 791 705029 791 705009 791 705011 791 705024 791 705012 S791 705013 S791 705014 S791 705015 S791 705017 S791 705018 791 705019 791 705022 S791 705026 Width Production No border strip of hemming equipments 049 064 049
32. th the needle that at the moment when the hook point begins to take up the upper thread loop the upper edge of the needle eye comes to lie about 1 5 mm under the hook point If the needle bar height is not ade quate to this requirement loosen the res pective screws remove the front plate loosen the scre of the needle bar carrier 3 Fig 7 adjust the needle bar height correctly retighten the screw properly and mount the front plate to 0 1 mm Fig 10 To adjust the hook course Fig 10 Setthe stitch length at zero and turn the handwheel towards you until the needle bar reaches its bottom position and reascends by 2 mm In this position the hook point must be aligned with the needle axis the distance between the hook point and the needle being 0 1 mm or less If this is not the case loosen the hook and set its position correctly then retighten the screws and check the gap as well as the hook course To adjust the hook holder Setitso as to obtain a gap of about 0 7 to 0 9 mm between the holder lug and the bottom of the groove of the hook inner part For this adjustment which is to be carried out only after the hook course adjustment loosen the hook holderscrews 16 12 13 72317 1011 To remove and to mount the drive belt Fig 11 Screw out the screws 1 remove the upper belt guard 2 take the V belt from the handwheel groove loosen the two screws and take the handwheel together with the bearing 3
33. time to time it is necessary to remove waste between the feed dog and the throat plate Otherwise machine should be cleaned daily Warning Before proceeding to clean and lubricate the machine be sure to switch off the main switch and hold your feet away from the machine stand treadles in order to avoid accidental machine start by treadle actuation General overhaul and repair of machine It should be carried outonce a year The machine should be set out of operation cleaned dismantled faulty pieces eschanged and due repairs carried out The machine should be then assembled and tested The electric motor and the electrical equipment of the machine should be inspected and tested The general overhaul and repair of the machine should be carried out so thoroughly as to enable the machine to run without major defects for the next year To store the machine After the machine has been set out of operation it should be thoroughly cleaned inspected and faulty pieces exchanged if any The machine should be then tested coated with portective grease and stored with all the tools and accessories 20 72317 1011 V FAULTS AND HOW REMOVE THEM Fault a Heavy machinerun b Slow machine start Upper thread breakage d Lower thread breakage Cause The machine has been out of use for considerable time dried oil and impu rities deposited in the bearings Insufficient belt tension 1 Slashed thread
34. ting the clutch of the electric motor the left side one for lifting the presser foot after connecting the tie rod of the left side treadle with the lifting mechanism Screw out the two screws remove the belt guard put the V belt on the motor pulley mount the belt guard and fix it it with the screws To set and fix the machine The machine is designed as a stable unit with the stand requiring no fixing to the floor To make up for possible unevenness of the floor use the levelling rubber piece situated on one of the stand legs and adjustable by means of turning a handwheel also mounted on the leg To clean and lubricate the machine Figs 1 1a Before putting the unpacked machine into opera tion remove the protective grease coating and clean the machine thoroughly Suitable oil for the machine and the hook is the white heavy vaseline oil with viscosity 50 mm s at 20 C Since the machine has a group wick lubrication drop into the tank of the oil level indicator more oil than is usual in the individual lubrication of machine parts The lubri cation holes are marked with red circles around them Before lubrication check if the lubrication holes are clean and clean them in case of need It is advisable to oil the machine several times a day The hook is oiled automatically from the oil tank located in the machine arm Check the oil level on the oillevelindicatorand refill oil in time The hookand its mechanisms should be cleaned sever
Download Pdf Manuals
Related Search