HIGHLEAD GC20698 Series, Instruction Manual

Page 1: ...HIGHLEAD Purchasing Dept Copy GC20698 Series Long Arm Version Compound feed Heavy Material Lockstitch Sewing Machine Instruction Manual Parts Catalog SHANGHAI HUIGONG N0 3 SEWING MACHINE FACTORY...

Page 2: ...ween rotating hook motion and needle motion 9 13 Adjustment offeed dog height _________________________ ______________________________________ 10 14 Relationship between rotating hook motion and take...

Page 3: ...sm 26 5 Needle bar thread take up lever mechanism 29 6 Stitch regulator mechanism 32 7 Lower shaft feed rock shaft mechanism 34 8 Hook saddle mechanism 37 9 Knife mechanism I 10 Knife mechanism II 39...

Page 4: ...not operate the machine without these safety devices 2 Precaution before Starting Operation I If the machine s oil pan has an oil sump never operate the machine before filling it 2 If the machine is l...

Page 5: ...ever upon the setting of the internal switch in the control box as described in Paragraph 1 3 CAUTION The green wire must be connected to the ground terminal in order to ground the motor properly B Th...

Page 6: ...on when rotating clockwise The rotary direction has been set to counterclockwise as facing to the motor pulley matching with the machine prior to shipping 2 Connection of control box The control box...

Page 7: ...peration then set the plug 12 pings coming from the machine head into the receptacle CAUTIONS ON USE 1 Oiling 1 Filling the oil to the fount Oil level should be periodically checked Ifoil level is lit...

Page 8: ...on or control troubles be sure to keep the control box cover close during operation d Do not apply a multimeter to the control circuit for checking otherwise voltage of multimeter might damage semicon...

Page 9: ...hread can be used 4 Threading of needle threads a Pass each needle thread through thread guide A Note When thin slippery thread polyester Thread or filament thread for example is used pass the thread...

Page 10: ...on Direction ofstitching can be reversed by depressing this button Stitching goes on in reversed direction while the button is held down and returns to forward direction when the button is released f1...

Page 11: ...d b While holding the two needle threads by left hand rotate the hand wheel one turn by right hand By pulling up the needle threads as shown in the figure the bobbin threads will be lifted Each combin...

Page 12: ...ion I Set feed length stitch length to 6 on the feed setting dial 2 When needle is lifted 2 4mm from the lower dead point as shown in Figure the following positional relationship should be maintained...

Page 13: ...essure of presser foot should be adjusted for individual fabric s with the following cautions Fabric will be damaged if the feed dog extends too high or pressure of presser foot is too large Even stit...

Page 14: ...lt and install it again to adjust 15 Relationship between hook motion and opener motion a Tum the balance wheel by hand and stop when the opener holder is located most remotely from the throat plate b...

Page 15: ...is installed to prevent the hook and cog belt from damage in case the thread is caught into the hook when the machine is loaded abnormally during operation 1 Function of safety clutch a When the safet...

Page 16: ...ust the force slide the timing belt loosen the set screw and tum the eccentric pin White mark TmingBett EccentricPin strengthen Sat Screw Low Shaft EccentricPin c After the adjustment make sure to fas...

Page 17: ...e tolerance of between the stitches Screwing the pin in clockwise can increase the stitch of forward sewing otherwise the stitch ofback sewing will be increased 21 Installation of movable knife 1 Inst...

Page 18: ...o about 0 5 mm the screws A and B should be loosened for this adjustment 22 Adjustment of thread trimmer cam a Turn the balance wheel by hand until the needles reach the lowest position b Maintaining...

Page 19: ...he screws C and draw the wire e Make fine adjustment by loosening the nut D f Loosen the nut D and make the outer casing approach rightward to increase the opening value Thread tenson lever I Thread t...

Page 20: ...all the spring M Bolt J Stopp r Thread trimmer cam 7 Contact the rocking cranks pin F Thread trimmer rockmi i crank D crew B C and D to the stopper pins E and F and tighten the connecting link clamp b...

Page 21: ...hread take up Slide lever lever Stitch adjusting Dial system Lubrication system Manual lubrication Motor Clutch motor 370W Servo motor 550W Needle Standard 6 4 mm gauge Special 3 2 4 4 8 8 9 5 12 7 16...

Page 22: ...A ARM BED AND ITS ACCESSORIES 19 From the Library of Superior Sewing Machine Supply LLC...

Page 23: ...44 x3 Al6 H4723B8001 Spring I I I I Al7 1 14724B8001 Plate I I I I Al8 H4725B8001 Thread guide I I I I Al9 H3200B2100 Screw I I I I SM9 64 40 x6 5 A20 HA300B2190 Screw 2 I 2 I SMI 1 64 40 x8 A21 H3200...

Page 24: ...B THREAD TENSION REGULATOR MECHANISM 8 9 14 15 16 27 I I so 49 J 3 35 3 21 From the Library of Superior Sewing Machine Supply LLC...

Page 25: ...71 Thumb nut I 2 I 2 B19 H322180682 Pin 2 3 2 3 821 H3306B0661 Thread guide I I I I 822 HAI0680676 Screw I I I I SM9 64 40 x6 B23 HA31080702 Thread tension releasing plate I 2 I 2 B24 H4710C8001 Threa...

Page 26: ...Thread tension stud I I B45 H4805C8001 Thread tension stud I I B46 H3230K0751 Screw I I I I SMl 1 64 40 xJO B47 H3221B6817 Pin I I I I B48 H322186818 Tension releasing pin I I B48 H4916B8001 Tension r...

Page 27: ...C ARM SHAFT MECHANISM 7 8 9 10 11 12 1l 14 15 16 17 19 24 From the Library of Superior Sewing Machine Supply LLC...

Page 28: ...ulley upper I I 1 I Cl3 HAIOOF2130 Screw I I I I SMl5 64 28 xt4 5 Cl4 H3205J0662 Bearing I I Cl5 H3205J0661 Collar I I Cl6 HAll3F0684 Screw 2 2 SMl5 64 28 x8 5 Cl7 H3204J0652 Pulley I I Cl8 HAIIOD0672...

Page 29: ...D UPPER SHAFT PRESSER FOOT MECHANISM 12 13 l4 51 26 From the Library of Superior Sewing Machine Supply LLC...

Page 30: ...00G2l70 Screw I I I I SMl 4 24 xJ7 D22 H4730E800I Lever spring I I I I D23 H4729E8001 Screw I I I I SM15 64 28 x79 D24 H4727E800I Twist spring I I I I D25 H4728E8001 Knee lifting lever I I I I D26 H3l...

Page 31: ...9E8001 Link 1 1 1 1 D47 HAIO0E2150 Screw 2 2 2 2 SM11 64 40 I0 D48 H4722E8001 Washer 2 2 2 2 D49 H4721E8001 Bell crank guide 1 1 1 I D50 H4753E8001 Screw 1 1 1 1 SM11 64 4Q x14 5 D51 H4708D8001 Screw...

Page 32: ...E NEEDLE BAR AND THREAD TAKE UP MECHANISM 2 17 24 23 22 so cE 46 47 48 49 29 From the Library of Superior Sewing Machine Supply LLC...

Page 33: ...2F8001 Needle bar holder I I I I E20 H321 IID604 Screw I I I I SM9 64 40 x8 5 E21 H4724F8001 Needle bar I I E21 H4806F8001 Needle bar I I E22 H4725F8001 Vibrating presser bar I I I I E23 H3400C2020 Sc...

Page 34: ...1 ID406 Oil wick I I I I E44 H3129F0691 Screw I I SM3 32 56 x2 S E45 HAIO0C2170 Screw I I SMl 8 44 x4 S E46 H3129F0693 Thread guide I I E47 H32132Dl04 Screw 2 2 SM9 64 40 x3 E48 H4739F8001 Needle clam...

Page 35: ...F STITCH REGULATOR MECHANISM 11 2 3 4 6 1 1 3 31 30 16 17 I I 24 22 21 32 From the Library of Superior Sewing Machine Supply LLC...

Page 36: ...4 H3200F2050 Guide plate I I FIS HA300C2030 Screw I I SMI 1 64 40 xS Fl6 H3200F2110 Spring I I I I Fl7 HA700F2030 Pin I I I I FIS HA720F0686 Screw I I I I SM3 16 28 x18 Fl9 HA720F0685 Bushing I I I I...

Page 37: ...G LOWER SHAFT FEED ROCK SHAFT MECHANISM 43 42 45 44 41 30 33 32 34 From the Library of Superior Sewing Machine Supply LLC...

Page 38: ...ft bushing complete middle I I I I 019 H4725H8001 Bushing I I I I 020 HAI05D0662 Screw I I I I SMl 4 40 x4 021 H3205H0654 Screw I I I I SMl 4 40 x5 022 H4723H8001 Ball bearing I I I I 023 H4727H8001 B...

Page 39: ...I I 047 H3205G0662 Oil wick I I I I G4S H3221 IG205 Bolt 2 2 2 2 SMl 8 40 x7 049 H429050050 Bolt I I I I GBITTS M5x5 050 H4742H8001 Feed bar I 050 H4805H8001 Feed bar I I 050 H4942H8001 Feed bar I 05...

Page 40: ...H HOOK SADDLE MECHANISM GC20698 1 GC20698 2 GC20698 1 D GC20698 2 D 7 6 5 Cl 9 11 S 31 32 1 2 31 30 Ca 32 37 12 29 28 26 27 From the Library of Superior Sewing Machine Supply LLC...

Page 41: ...2 Hl4 H32153l204 Screw I 2 I 2 SM3 16 02 x7 8 Hl5 H331311204 Link I 2 I 2 Hl6 H331311104 Opener bracket I 2 I 2 Hl7 H2004J0067 Screw I 2 I 2 HIS H3200I2030 Washer I 2 I 2 Hl9 H3305I0066 Opener I 2 I 2...

Page 42: ...I THREAD TRIMMER MECHANISM 4 5 7 8 9 3 15 14 11 39 From the Library of Superior Sewing Machine Supply LLC...

Page 43: ...7 H491 IJ8001 Moved knife I 2 l08 H4912J8001 Screw I 2 SMl 8 44 x9 2 l09 H4913J8001 Screw I 2 SM9 64 40 x4 5 110 H4914J8001 Spring plate I 2 Ill H4915J8001 Screw 3 6 SM3 32 56 x3 8 112 H4916J8001 Reve...

Page 44: ...J THREAD TRIMMER MECHANISM 1 2 7 8 9 36 37 38 44 1 62 41 From the Library of Superior Sewing Machine Supply LLC...

Page 45: ...50 Nut 2 2 GB T6170 M5 Jl8 HA300C2030 Screw I I SMI 1 64 40 x7 Jl9 H4908K8001 Arm I J20 H4907K8001 Bolt I SMl5 64 28 xJ2 5 J21 H4906K8001 Link I J22 H4905K8001 Screw 2 2 M5 C0 5 x7 5 J23 HAIOOH2080 Pi...

Page 46: ...4 24 x 6 155 H4983K8001 Screw 1 1 SMl 4 24 xJJ 156 H4967K8001 Screw 3 3 SMll 64 40 x7 151 H4966K8001 Stopper 1 1 158 H4981K8001 Holder 1 1 J59 H003008050 Nut 2 2 GBff6l72 l M5 160 H4977K8001 Mounting...

Page 47: ...K TOUCH BACK AND DETECTOR MECHANISM 5 6 7 8 9 10 1112 33 32 31 44 From the Library of Superior Sewing Machine Supply LLC...

Page 48: ...5 64 28 xt2 Kl4 H4931L8001 Pulley complete I I Kl5 HA703R0067 Washer I I Kl6 HA703R0065 Detector bracket complete I I Kl7 HA341 ID308 Screw I I SM15 64 28 x7 KIS H4936L8001 Lever I I Kl9 HAll3F0684 Sc...

Page 49: ...L ACCESSORIES 8 1 13 12 11 __ _ 7 10 14 31 28 9 33 46 From the Library of Superior Sewing Machine Supply LLC...

Page 50: ...04S06S4 Adjusting plate for speed command disk I I LIS HA300J2070 Screw driver large I I I I Ll6 H2404K06S4 Hinge complete 2 2 2 2 Ll7 H2404K06SS Hinge complete 2 2 2 2 LIS H2404K06S6 Screw 4 4 4 4 Ll...

Page 51: ...8001 H4766E8001 H4758F8001 H4753H8001 H4749B8001 H4750B8001 GC20698 2 D 1 8 3 2mm H4937B8001 H4741F8001 H4758E8001 H4750F8001 H4945H8001 H4732B8001 H473388001 5 32 4mm H4938B8001 H4742F8001 H4759E8001...

Page 52: ...10 11 12 13 14 6 15 I i From the Library of Superior Sewing Machine Supply LLC...

Page 53: ...t txlll m m 1 67H I 3 020PO I Cam haft I 7 67H l3 019P01 Spacer I 8 r1 o15 1 9 r w 671113 0 POl dju pla l 10 32Hl 010 crew l 11 67Hl3 017P01 Lever 1 12 671 1 3 0 4P B obbin cu hion l 13 70H03 0IOPOl B...