Download
Share
Print this page
  1. Manuals
  2. Brands
  3. Global Manuals
  4. Sewing Machine
  5. LP 1768 Series
  6. Instruction & parts manual

Global LP 1768 Series Instruction & Parts Manual

Hide thumbs

Advertisement

Quick Links

Download this manual

Advertisement

loading

Related Manuals for Global LP 1768 Series

Summary of Contents for Global LP 1768 Series

  • Page 5 PRECAUTIONS BEFORE STARTING OPERATION Safety prccautiom. (I) When turning the power on, keep your hands and fingers away from the area around/under the needle and the area around the pulley. (2) Power must be turned off when the machine is not used, or when the operator leaves his/her seat. (3) The power must be turned off before tilting the machine head, installing or adjusting the machine, or when replacing.
  • Page 6 If the machine which customer bought is not wholly assembled, the customer should connection the electrical wires and the air pipes by themselves. Shows as the Fig. I and Fig.2 Fig. I Fig. 2 There are same connectors which need to connect to the machine from the control box: A: machine function input, connect t�...
  • Page 8 The installation of the oil pan is showed as the fig.4 and fig.5: (I) Install the oil pan 3 to the underside of the workt11ble 1 in the place shown in the illustration using the nails 2. (2) From front view, the oil pan 3 to the side is 60mm;...
  • Page 11 Caution: The looper-thread tension may only be adjusted with the sewing machine switched off. 7) Installing the needle Note: Before attach needle, be sure to turn off the power. As showed on Fig. 13 1) Turn the balance wheel by hand to raise the needle bar 1 to its highest position;...
  • Page 12 10) Adjusting the stitch length The feed adjustment dials 2 can be used lo set iaitch length. (See Fig.15) The sewing machine will switch between the two stitch lengths each time the stitch length change switch is pressed. 11) Using the manual switches Be.showed by Fig.16: (I) Quick reverse switch Back tacking is carried out during...
  • Page 13 12) Cleaning (I) The area around the feed dog and the hook should be cleaned every day. (2) Remove any thread scraps f om inside the rotary hook. (.1) Keep the CCl11lwl box clean. U) Lubrirntion ( I l Check the oil level at the sight glass 2 of r-ig.17 every 11cl'k If the nil is not enough, remove oil-filling screw I ;1nd pour in nil.
  • Page 14 14) Adjusting the trailing length after thread trimming Look at Fig.20: adjust by turning the pre-tensioner . If the tension of the pre-tension is increased, the lengths of the threads trailing from the needle tips will be reduced; if the tension is reduced, the Fig.20 15) Back tacking ,-{'Rii ..
  • Page 15 Caution: Check and adjust height of the feed-dog only when sewing machine is switched off. The checking and correction are showed by Fig.22 ( 1 )Standard checking The highest position of feed-d9g I must be I .2mm(approx. one tooth depth) above the throat plate level. Set stitch length"O''(Turn button counter-clockwise as rar as it will go).Then, turn handwheel until feed-dog 1 has reached its highest position.
  • Page 17 20) Hook protection �I '-ir - -- - I:ig.27 Be showed by Fig.27,in looping stroke position the needle rnusi abut on the hook protection I without being displaced.Move needle in looping stroke position hy pulley. In looping stroke position the hook tip 4 is at the level of the middle of the needle.
  • Page 18 Set the feed adjustment dials to the minimum settings. Then adjust as follows so that the feed dog I is at its highest position ( 1.2mm above the top of the needle plate 2) when the needle bar is at its lowest position. a.
  • Page 19 23) Adjusting the presser foot height(Fig.32) The standard height of the outer presser foot 7 is mm when it is raised by the presser lifter bar 1. (I) Remove the belt cover. (2) Loosen the presser adjusting screw, to release the presser foot pressure. (3) Raise the presser lifters bar I and then loosen the screw 3.
  • Page 20 a. Remove the upper plate. b. Remove the adjusting bracket 3. c. Loosen screw 5 of adjusting bracket collar 4. d. Adjust the adjusting bracket c<1tlar 4. If the adjusting Maximum 7 mm bracket··collar 4 is be installed at the highest rosition, the alternating presser foot movement amount is I -6mm.
  • Page 21 ATTENTION: 26) Driving knife adjustment In resting position the rear edge of the driving knife should be flush with the f ont edge of the counter-knife, which have been showed by Fig.36. · • · � • -�� •• Fig.36 The fixed knife should abut on the thread pulling knife along its total width.
  • Page 22 5 for adjusting the distance between roller and Adjustment: When adjust roller to earn. first, loosen screw cam ,then twist piston rod 6 in order to adjust the distance, flt last ,tighten screw 5. Turn cam adjustment: Loosen screw l ,J and 4 at the earn, then, twist cam 2 in such a way that the roller abut on the highest point of the cam when the thread lever is in position "up", at last ,tighten screws 1,3 and 4 again.
  • Page 23 29) Safety clutch(Fig.40) The standard safety clutch 2 in the lower toothed belt wheel protects the hook f om being displaced or damaged in case of thread jamming in the hook path. When the hook is blocked. the safety clutch 2 must come out.
  • Page 24 A.ARM AND ITS ACCESSORIES 47 46 �-�� • 79 80 84...
  • Page 25 A.ARM BED AND ITS ACCESSORIES f-< f-< ;::, Fig. � Part No. Description '° Remarks '° HF91408001 Screw M5x\2 H00500!040 Washer H415040080 Screw M4x8 HF927B8001 Tiu·ead take-up cover HF930B8001 Plug HF933B8001 Diul HF935B8001 Diul shnfi HF936B8001 Gunrd plate HF931B8001 Cover H003045040 Hexagonal nut H00500!040...
  • Page 27 A.ARM BED AND ITS ACCESSORIES Fig. � < :::> Part No. Description Remarks HF9698800 l Rubber ring H431050050 Screw M5x5 HF999B8001 C ord cover H7331G8001 Screw HF915B8001 Screw M5x l2 HF918B8001 HF913B8001 Face plate HF919B800I HF920B8001 Oil pillow HF998B8001 HF985B8001 Slide Plate HF986B800I Spring for slide plate...
  • Page 28 B.THREAD TENSION REGULATOR MECHANISM /J- 2 � �--5 __.J � 6 62 15 rr i 29 55 56 58 25 26 27 28 49 48...
  • Page 29 11111 B.THREAD TENSION REGULATOR MECHANISM ::> -< ::> Fig. Part No. -< Description Remarks c-;• H003002050 HF930C8001 Thcad hook HF929C800t Thread tension stud HAI 12B0693 Titread tension discs HA710B0672 Tension spring HA710B0671 Tension adjusting nut H3221B0686 Thread tension stud HF917C8001 Titrcad guide I-1322186817 Thread tension releasing pin...
  • Page 30 B.THREAD TENSION REGULATOR MECHANISM 53 5 4 7--� - < : ,.-l · , __ � � 11 ---t-ti!!!II �� �-5 58 25 26 27 28 29 55 56 57 ;CS> �!! �·-- · '.: ;, 44 �'�=- - - ! = 40 ··...
  • Page 31 B.THREAD TENSION REGULATOR MECHANISM < Fig. :::> < Remarks Dcscripl ion Part N<i. M4 x8 ll42 114 I50.J00X0 Scn:w ll.JJ II F'l27 I8ll0 I \\·ashcr M4x35 ll4.J 11-11 :;040.1 . ,0 Sere" t\la!c(llCt Slljlj)llrl 1\45 11 F'IO(,l ·xoo 1 ll<i!IP( ·xoo I H-!I, 1'11 1111 1 II.Jl/.lll:'il! l 211...
  • Page 32 C.ARM SHAFT MECHANISM 1 6 17 18 1 9 21 22 12 14 15 25 26 o - _ ; -:,:--- � 2 7 5 0 · · ····""'''"""""" � 7 .52 ..! ..55-•· (53 ) 5- ·(6 .
  • Page 33 H6715C8001 Screw H431060080 Screw M6x8 HF907D8001 Crank H431060060 Screw M6x6 HF9l4B8001 Screw HF905D8001 Upp er shall H3205J0662 Bal l bearing(L) H431080100 Screw M8x!0 HF913D8001 Cou nterweight l- 1 007009200 Retainer ring l-ff921 D800 l Ball bearing(M) HF918D8001 Bushing l- 1 431060060 Screw M6x6 HF943D8001...
  • Page 34 C.ARM SHAFT MECHANISM 16 17 18 1 9 21 22 11 13 ..__ , \ = : E:i i " J , ;· ;, -;;; m,: - !!!!!!!!""\ 25 26 12 14 15 : : - --. · ' . j "...
  • Page 35 C.ARM SHAFT MECHANISM r< ::::> Fig. <t: < Part No. Description Remarks HF922G8001 Needle bar link H431030050 Screw MJx5 H401040100 Screw M4xl0 I--IF924G800 I Needle bar holder HF928G8001 11treaded bo It HF927G8001 Slide block HF938G8001 Oil wick(Short) H415040100 Screw M4xl0 HF933G800I Slide guide HF939G8001...
  • Page 36 C.ARM SHAFT MECHANISM 16 17 18 19 21 22 -1'{"'"' • l\'r.1-•H \m: "'\ !!!!!!!!!i!'!!!! 12 14 15 25 2 6 �-'.:---...· �· , : - : ; :>. ·o - � 27 · · · · ·· · · · ..
  • Page 37 C.ARM SHAFT MECHANISM Fig. <( Part No. < Description Remarks Hf-958O8001 Oil wick 1 IF959G800 I Plug 110 I 270800 I Screw H007013080 E-lype �top ring 8 I IG 13008002 Oil pipe HGl31G8002 Oil wick HG006O8001 Collet...
  • Page 38 D.UPPER FEED LIFTING ROCK SHAFT MECHANISM...
  • Page 39 , ,.,-.,- D.UPPER FEED LIFTING ROCK SHAFT MECHANISM < Fig. ::::> < Part No. Description Remarks <';' H428050080 Screw M5x8 HF919E8001 Support pin HF906E8001 Adjusting brackct(L) H428050080 Screw M5x8 HF912E800! Oil wick HF91 IE8001 Oil pipe HF908E8001 Oil wick HF913E8001 Plate H005018050 Washer...
  • Page 40 0.UPPER FEED LIFTING ROCK SHAFT MECHANISM...
  • Page 41 D.UPPER FEED LIFTING ROCK SHAFT MECHANISM !-< !-< Fig. <(. :::i Pall No. Dcsniptio11 Remarks <(. '° '° HF933E8001 Draught rod HF936E8001 Di�c HF935E800 I Gasket HF934E8001 Piston HF931E8001 Pipe HF932E8001 Cylinder base HF997B8001 Gasket H00500!050 Washer 1·!415050180 Screw M5xJ8 H415040160 Screw M4x16...
  • Page 42 D.UPPER FEED LIFTING ROCK SHAFT MECHANISM...
  • Page 43 D.UPPER FEED LIFTING ROCK SHAFT MECHANISM :::, < Fig. :::, < Part No. Description Remarks HF932F8001 Screw HF979E!!00I Stopper claw HF939r800I Oil wick H431050100 Screw M5xl0 HF940f,8001 Bushing HF938fi800 I Outer presser bar HF946fi800 I Presser co1meeti11g plate HF977E8001 Co1mecti11g pin HF978E8001 Oil wick HF979E8001...
  • Page 44 E.PRESSER FOOT ADVANCE MECHANISM - - -- ------ -...
  • Page 45 E.PRESSER FOOT ADVANCE MECHANISM � <t:: Fig. � Part No. Description Remarks <!'. H007013080 E-type retaining ring 8 HF965F7101 Press adjusting plate assy HF963F8001 HF961 F7101 Press adjusting dial H007013050 E-type retaining ring H612030080 Spring pin HF976F8001 Spring support (U) HF972F8001 Spring HF975F8001...
  • Page 46 E.PRESSER FOOT ADVANCE MECHANISM ----...
  • Page 48 F.STITCH REGULATOR MECHANISM / ....... 33 ---- _, , / ., • .✓- · · " ----:r:- ,,,,.., ,,. ,,., ..,,. ,,, �...
  • Page 50 F.STITCH REGULATOR MECHANISM ---49 - 50...
  • Page 51 F.STITCH REGULATOR MECHANISM :=> Fig. :=> <t'. Part No. Description Remarks <( N o. .---< HF941H8001 Spring pin H003001060 HF943H8001 HF942H800! Pull spring H424100100 Tirread pin MIOx!0 H3100O2090 Presser spring HF9631-!800\ HF966H8001 Oil seal HF958H8001 Shan HF967H8001 Oil seal HF961H8001 Guide H005009050 Elastic washer...
  • Page 52 G.FEEDING AND FEED LIFTING MECHANISM 45 46 (46) 50 73 74 75...
  • Page 53 vu sea1 G.FEEDING AND FEED LIFTING MECHANISM Fig. <(. ", ' Part No. Remarks Description <(. HF92818001 Feed shaft HF959G8001 Rubber cap HF965G8001 Adjusting shaft collar Bolt M4XJ2 H415040120 HF927E8001 Bushing(L) ·nmrst ring HF93118001 E-typc retaining ring H007009!50 HF94118001 Tube HF942I8001 Oil wick HF937I800!
  • Page 54 G.FEEDING AND FEED LIFTING MECHANISM • 67 68 52 56 58 59 60 49 (46) 50 • • • • • • • • · · · · · · · · · · · · · · ·· · · · ·...
  • Page 55 Fig. G.FEEDING AND FEED LIFTING MECl:IANISM <l'. Remarks Part No. Description <l'. <';' HF924E8001 Bushing(R) M6xtO H428060100 Bolt M6xlO Bolt H429060l00 HF975J8001 Coupling claw (L) HF978J8001 Toothed wreath HF977J8001 Coup! ing crRw(R) 118026 0 ring HF988I8001 Oil seal HF98718001 Bushing (L) HF99218001 Bolt H34412Cll0 Plunger spring...
  • Page 56 H.HOOK SADDLE MECHANISM (I) � �s 38 � � ------...
  • Page 57 H.HOOK SADDLE MECHANISM ( 1) Fig. <( :::> Part No. Description Remarks � <( HGI06J8001 Hook colu mn HG107J8001 Bushing HG108J800! Knife HGI09J800! Hexagonal Screw HGI I0J8001 Knife bearer cpl. HGII IJ8001 Screw HGI 12J8001 Screw H007013060 Lock washer HF9451800! Washer HG! 15J8001 Knife shafi...
  • Page 58 I.HOOK SADDLE MECHANISM · - 1 1- � '._ I ; 't'-- 8 - - : _ : :. - �, .. - :: �- •...
  • Page 59 I.HOOK SADDLE MECHANISM (2) � Fig. <( Part No. Description Remarks � HG150J8001 Trat1$p.colunm H415040370 Screw H427040060 Screw HG153J7101 Tran�p.lcver HG156J8001 Slide block H007013060 Lock washer HO158J8001 HOl61J8001 Cover plate( right) HO162J8001 Cover plate(le n) HO163J8001 Screw HG164J7101 Cover H604020180 I I 3 I- 1 O169J8001 Guide angle...
  • Page 61 J.HOOK SADDLE MECHANISM(3) f-< :::> Fig. <t'. Part No. Description Remarks � HG90J7800l Transp.column H415040370 Screw H427040060 Screw HG153J710l Transp. lcvcr HGl56J8001 Slid e block H0070l3060 Lock washer HGI5818001 HG90188001 Cover plate HG1631800l Screw HGl64J710l Cover JI l H605020180 H428050080 Screw H003008050 HG17118001...
  • Page 62 K.GEAR SADDLE MECHANISM (LEFT) �--18 - - 20 :· � . / � 64 25 26 r- ·- ·- · � ..:::, 38 _J I 52 - -M '...
  • Page 63 K.GEAR SADDLE MECHANISM (LEFT) < f-< Fig. < :::, Part No. Description Remarks HG006J8001 Hook bearing ckl.lcn HGI06K8001 Cross slide HGI05K8001 Coupling J-1428050060 Screw HG107K8001 Dust cover HF989J8001 Washer HF991J8001 Oil drip ring HF992J8001 Washer HF984J8001 Ball bearing HGl 12K8001 Plug HF981J8001 Hook shaft...
  • Page 64 K.GEAR SADDLE MECHANISM (LEFT) :c------18 -- - 20 .• 3 ' 3 • • / � 25 26 r- • - -- · � � � J ""' ;,,a 52--:� � ���/""':._...
  • Page 65 <( <( l-1 0 05013050 Belleville spring w11�her HF91IJ8001 HF9IJJ8001 Hexagonal mll HF954J8001 Sheet packing HG154K8001 Cover HG157K8001 Oil feeding pipe HF958J8001 Oil seal HG159K8001 Disk cum H415040100 Screw H415040080 Screw HGl64K8001 Bearer H415040l20 Screw HG161K8001 Washer I-IG166K7101 Drive winch HGI09C8001 Coupling KQL04-M5...
  • Page 66 L.GEAR SADDLE MECHANISM (RIGHT) 27 36 't--l'.=------ --64 " _..- .,,.-�- , , , . . . r<!>") -54 "'T"' ,,-/ 55------i 5 1--� •v,-,,�� 56 62 49----l��) 5 0-- ---8' :::::...
  • Page 67 H428050060 HF981J8001 Lever assy. HF964J8001 387018 HF973J8001 HGl44K8001 95018 L.GEAR SADDLE MECHANISI\I (RIGHT) Fig. Part No. Dcs111ptl(l11 Rrn1arks HF945J800I 111,nk hearing ckl kll IIG106K8001 Cross slide HG105K8001 Coupling Screw HG107K8001 Dust cover HF989J8001 Washer HF991J8001 Oil drip ring HF992J8001 Washer �...
  • Page 68 L.GEAR SADDLE MECHANISM (RIGHT) 27 36 '--- - - 24 ,,-- ,, " ,,,, ,,,, ,,,, • ,c,1- 5 4 ,,,,-· 51--.::.v'"'"'-' r,-- ,.;;;"'. � LIZJ � 4 9--- 5 0- - --- 1�...
  • Page 69 L.GEAR SADDLE MECHANISM (RIGHT) I-< � I-< <I'. Fig. Description Remarks Part No. � r;-i '° '° Hexagonal nut HF9IJJ8001 HF954J8001 Sheet packing Cover HGI80K8001 HG157K8001 Oil feeding pipe Oil seal HF958J8001 HG159K8001 Disk cam H415040100 Screw H415040080 Screw HG164K8001 Bea rer H415040120 Screw...
  • Page 70 M.OIL LUBRICATION MECHANISM 37 13 d">= �. �\Q ·-· 3 _ _ _ ;;,./ 49 50...
  • Page 71 � � H401050080 Bolt M5x8 H005018050 Spacer HF909K8001 Oil wick support HF917K8001 Oil joint HF908K8001 Tube guide HF906K8001 Felt HG! 1 IL8001 Oil wick M08 HG! 12L8001 Oil tube HG! 18L8001 Oil tube HF914K8001 Felt Ml ! HG! 16L8001 Oil wick Hd! 15L8001 Oil tube HF948K8001...
  • Page 73 M.OIL LUBRICATION MECHANISM � <t'. Fig. <t'. Part No. Description Remarks ..Support spring HF930K8001 Oil pipe HF923K8001 Oil joint HF935K8001 HF924K8001 Oil pipe HF925K8001 Oil pipe HF926K8001 Suppmi spring HF932K8001 Felt part HA30012040 Cable tie HF934K8001 Oil pipe HF937K8001 Oil pipe HG005K8001 Oil pipe...
  • Page 74 ACCESSORIES � c:>-----32 2 7 - 28--l �...
  • Page 75 � Fig. Part No. Description � HG! 12N8001 Hinge support H411060100 Screw HGI07N7101 Hinge HF905L8001 Head cushion HF971B8001 Bobbin HAI00J2170 Oil tank HF912L7101 Oiler JZDPl 700G23 Neddle HF913L8001 Detector setting plate H3200L0120 Cotton stand assy HA200J2030 Cotton stand assy NI I HAI00J2180 Cover HF904L800!
  • Page 77 O.PNEUMATIC CONTROL UNIT f-< :::i f-< Fig. <t'. :::i Part No. Remarks Description <t'.' <';' HF930M8001 Connecting hox ha�e HF924M8001 PCB board HF932M8001 Connecting box scrc\\' H409040160 Screw H415030120 Scn:w HF93JM8001 Connct:ting hox t:11\·cr HF922E8001 Rheostat HF989E7101 Rheo�tat "·irl' as�y l- f f934M8001 Dutton set lhum: HG90M98001...

This manual is also suitable for:

Lp 1768-2 autLp 1768 aut