HIGHLEAD GC20688 Series Instruction Manual And Parts List Download Page 61 | Manualshive

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Needle gauge

3.2mm

8mm

8mm

10mm

12mm

Pcs.

16mm

Pcs.

Needle

DP×17 19#

DP×17 19#

DP×17 23#

DP×17 23#

DP×17 23#

2

DP×17 23#

2

needle bar

connecting stud

HG017G8001

HG006G8001

HG006G8001

HG010G8001

HG013G8001

1

HG015G8001

1

Outer presser

foot

HG020F7101

HG004F7101

HG004F7101

HG012F7101

HG015F7101

1

HG017F7101

1

Inner presser

foot

HG023F8001

HG008F8001

HG008F8001

HG009F8001

HG010F8001

1

HG011F8001

1

Feed dog

HG010I8001

HG006I8001

HG006I8002

HG007I8001

HG008I8001

1

HG009I8001

1

Needle plate

HG014B8001

HG007B8001

HG007B8001

HG008B8001

HG009B8001

1

HG010B8001

1

Slide Plate

left

HF980B8001

HG005B8001

HG005B8001

HG005B8001

HG013B8001

1

HG011B8001

1

Slide Plate right

HF981B8001

HG006B8001

HG006B8001

HG006B8001

HG006B8001

1

HG012B8001

1

Thread guide

HG007G8001

HG007G8001

HG007G8001

HG011G8001

HG011G8001

1

HF971G8001

2

Screw

HG008G8001

HG008G8001

HG008G8001

HG008G8001

HG008G8001

1

HF972G8001

2

GAUGE PARTS LIST

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Summary of Contents for GC20688 Series

Page 1: ...GC20688Series Compound feed Heavy Material Lockstitch Sewing Machine Instruction Manual Parts Catalog SHANGHAI BIAOZHUN HAILING SEWING MACHINERY CO LTD...

Page 2: ...the machine before lubricating 3 When a new sewing machine is first turned on verify the rotational direction of the pulley with the power on The pulley should rotate counterclockwise when viewed from...

Page 3: ...of the picture All the pins on the control box have signals of function showing and usually different wires have different kinds of joint Caution the pin of synchronizer wire is the same with another...

Page 4: ...et plate 2 with the three screws 3 2 Install the set plate 2 to the back of the machine arm with the two screws 4 4 Adjusting the needle stop position 1 Adjusting the needle up stop position When the...

Page 5: ...on the belt cover A Adjust as follows a Turn off the power switch b When the black mark stops in a position over the mark on the belt cover the needle down stop position disc 2 should be turned in th...

Page 6: ...sting of upper thread tension Tension should be as low as possible The crossover point should be in the center of the material Upper thread tension can be adjusted by thread tension nut 4 and 5 see th...

Page 7: ...Note Before attach needle be sure to turn off the power 1 Turn the balance wheel by hand to raise the needle bar to its highest position 2 Loosen the needle clamping screw 3 Hold the needles so that t...

Page 8: ...witch The sewing machine can be switched between two different alternating presser foot movement amounts each time when the switch 2 is pressed 3 Auto back tacking select switch If the switch 3 is pre...

Page 9: ...h remove oil filling screw 2 and pour in oil Check oil level at sight glass 2 The oil level must be between EMPTY and FULL Replace oil filling screw 2 After running for 500 hours since buying the new...

Page 10: ...oil wick 7 and 8 should be set between the oil satchel 9 and plate 8 4 Checking the lubrication oil Turn on the power switch Depress the treadle gently and check that the oil level rises in the oil s...

Page 11: ...dle bar 1 is at its lowest position 1 Remove the face plate 2 Set the feed adjustment dials to 0 3 Turn the pulley to set the needle bar 1 to its lowest position 4 Loosen the screw 3 and then move the...

Page 12: ...splaced Move needle in looping stroke position by pulley In looping stroke position the hook tip is at the level of the middle of the needle Press needle against hook protection 1 manually The needle...

Page 13: ...eedle bar is at its lowest position a Loosen the two screws 3 b Turn the machine pulley to set the needle bar to its lowest position c Turn feed cam 4 to align the point 5 of feed cam 4 with the cente...

Page 14: ...t pressure 3 Raise the presser lifters bar 1 and then loosen the screw 2 4 Move the outer presser bar up or down to adjust so that the height of the outer presser foot 7 is 9 mm 5 While the stopper pi...

Page 15: ...dge of the arm to the outer edge of the pin 7 is 78 mm at this time Then tighten the bolt 6 When installing the upper plate set the alternating presser foot movements dial to the min position 2 Inner...

Page 16: ...hould move away from the feed dog before the inner presser foot moves away 1 Remove the upper cover 4 2 Loosen the two screws 1 3 Turn the machine pulley until the needle tip and the feed dog s up fac...

Page 17: ...oosen the two bolts 3 and 4 2 Move the driving knife 1 to the left or right to adjust its position 3 Then tighten the bolts 3 and 4 29 Adjusting the driving knife height The clearance between the lowe...

Page 18: ...knife arm should be 0 1 mm 1 Overturn the arm 2 Loosen the bolt 3 3 Turn the plunger 2 of the thread trimming solenoid so that the distance from the left side of driving knife arm 1 to the screw tip o...

Page 19: ...nd the center of the roller 4 of the driving knife arm are in a straight line 5 Tighten the bolts 5 33 Safety clutch The standard safety clutch 2 in the lower toothed belt wheel protects the hook from...

Page 20: ...ssure When the air cylinder works normally the necessary atmospheric pressure is 5 5 6bar Can find out through the dial plate of the filtering 1 Lifting knob 1 clockwise rotation the pressure increase...

Page 21: ...A ARM BED AND ITS ACCESSORIES 20...

Page 22: ...ud 1 1 A18 H4728H8001 Washer 1 1 A19 H5344B8001 Nut 1 1 A20 HF965B8001 Fixing clamp 1 1 A21 HF964B8001 Winder shaft 1 1 A22 H401030120 Screw 1 1 M3 12 A23 HF952B8001 Disc 1 1 A24 H5731F8001 Presser sp...

Page 23: ...H401020025 Screw 2 2 M2 2 5 A62 HF982B8001 Stopper 1 1 A63 H7331G8001 Screw 2 2 A64 HF938K8001 Pipe 1 1 A65 HF914B8001 Screw M5 12 10 10 A66 HF997B8001 Gasket 10 10 A67 HF991B8001 Cover 1 1 A68 HF992B...

Page 24: ...Fig No Part No Description GC20688 1 D GC20688 2 D Remarks A87 HG007B8001 Needle plate 1 A88 HG006B8001 Slide Plate 1 A ARM BED AND ITS ACCESSORIES 23...

Page 25: ...B THREAD TENSION REGULATOR MECHANISM 24...

Page 26: ...release plate 1 1 B19 HF916C8001 Thread guide 1 1 B20 HA310B0705 Tension discs 4 4 B21 HA310B0702 Tension release discs 2 2 B22 H4710C8001 Tension spring 2 2 B23 HA115B7010 Stopper 2 2 B24 HA310B0701...

Page 27: ...481BF21 Plate complete 1 B52 H32481B821 Bushing 1 B53 H32481B521 Screw 2 B54 H32481B621 Take up spring guide 1 B55 H32481BB21 Stopper 1 B56 H32481BC21 Screw 1 B57 H32481B921 Thread tension post 1 B58...

Page 28: ...C SEWING MECHANISM 27...

Page 29: ...6 10 C19 H007009200 Retainer ring 1 1 C20 HF932D8001 Ball bearing 1 1 C21 H431060080 Screw 2 2 M6 8 C22 HF929D8001 Bushing 1 1 C23 H431060100 Screw 1 1 M6 10 C24 HF934D8001 Pulley 1 1 C25 H005008080 W...

Page 30: ...17 23 C62 HF931G7101 Needle bar bracket 1 1 C63 H403040100 Screw 1 1 M4 10 C64 HF943G8001 Oil satchel 1 1 C65 HF947G8001 Oil wick 3 3 C66 HF927E8001 Bushing 1 1 C67 HF968G8001 Support disc 2 2 C68 H4...

Page 31: ...D PRESSER FOOT MECHANISM 30...

Page 32: ...1 D11 HF956G8001 Oil feeding pipe 1 1 D12 HF917E8001 Link pin 2 2 D13 HF916E8001 Link 2 2 D14 H415060200 Screw 1 1 M6 20 D15 HF951E8001 Connecting lever 1 1 D16 HF956E8001 Pin 1 1 D17 HF953E7101 Link...

Page 33: ...E8001 Hose 1 1 D55 HF939E8001 Coupling 1 1 D56 HF962E7101 Shaft 1 1 D57 H415040120 Screw 1 1 M4 12 D58 HF924E8001 Bushing 2 2 D59 H402050080 Screw 2 2 M5 8 D60 HF923E8001 Collar 2 2 D61 HF970E8001 Spo...

Page 34: ...431050100 Screw 1 1 M5 10 D88 HF940F8001 Bushing 1 1 D89 HF938F8001 Outer presser bar 1 1 D90 HF946F8001 Presser connecting plate 1 1 D91 HF977E8001 Connecting pin 2 2 D92 HF978E8001 Oil wick 2 2 D93...

Page 35: ...E UPPER FEED LIFTING ROCK SHAFT MECHANISM 34...

Page 36: ...bar lifter shaft 1 1 E18 HF906F8001 Spreader shaft bush L2 1 1 E19 H424050160 Set screw 1 1 E20 H003002050 Nut 1 1 E21 HF997F8001 Stopper 1 1 E22 HF996F8001 Crack 1 1 E23 H415060160 Screw 1 1 M6 16 E2...

Page 37: ...Fig No Part No Description GC20688 1 D GC20688 2 D Remarks E59 H005004040 Washer 4 4 E60 HF91DF8001 Washer 1 1 E UPPER FEED LIFTING ROCK SHAFT MECHANISM 36...

Page 38: ...F STITCH REGULATOR MECHANISM 37...

Page 39: ...8 HF928H8001 Reverse shaft bushing L 1 1 F19 HF932H8001 Pin 1 1 F20 H428060080 Bolt 2 2 M6 8 F21 HF930H8001 Reverse stitching arm U 1 1 F22 HF934H8001 Pin 1 1 F23 H428060060 Bolt 1 1 M6 6 F24 HF927H80...

Page 40: ...H8001 Spring pin 1 1 F49 H003001060 Nut 1 1 F50 HF943H8001 Rod 1 1 F51 HF942H8001 Pull spring 1 1 F52 H424100100 Thread pin 1 1 M10 10 F53 H3100D2090 Presser spring 1 1 F54 HF963H8001 Key 1 1 F55 HF96...

Page 41: ...G FEEDING AND FEED LIFTING ROTATING HOOK SHAFT MECHANISM 40...

Page 42: ...F948I8001 Bolt 2 2 G20 HF951I8001 Screw 2 2 G21 HF950I8001 Feed dog 1 G22 HF949I8001 Feed bracket 1 1 G23 HF953I8001 Pin 1 1 G24 HF929I8001 Oil seal 3 3 G25 HF927E8001 Feed shaft bushing L 1 1 G26 HF9...

Page 43: ...connecting rod assy 1 1 G62 HF926I8001 Pin 1 1 G63 H007013050 E tpye retaining ring 5 2 2 G64 HF961H8001 Slide block 2 2 G65 HF925I8001 Back sylinder connection 1 1 G66 HF960H8001 Pin 1 1 G67 HF917I8...

Page 44: ...H HOOK SADDLE MECHANISM RIGHT 43...

Page 45: ...2 M5 5 H19 HF946J8001 Pin L 1 1 H20 HF964J8001 Oil seal 2 2 H21 HF966J8001 Bolt 3 3 H22 HF965J8001 Screw 3 3 H23 HF962J8001 Lower shaft holder 1 1 H24 HF960J8001 O ring 1 1 H25 HF963J8001 Ball bearing...

Page 46: ...060 Bolt 2 2 M5 6 H63 H005014060 Belleville spring washer 1 1 H64 HF91IJ8001 Nut 1 1 H65 HF91JJ8001 Hexagonal nut 1 1 H66 HF91AJ8001 Gear 1 1 H67 H431050050 Bolt 2 2 M5 5 H68 HF954J8001 Sheet packing...

Page 47: ...Solinoid setting plate 1 1 H89 H005018060 Washer 1 1 H90 H415060120 Bolt 1 1 M6 12 H91 H415040100 Bolt 2 2 M4 10 H92 HF939J8001 Pin 1 1 H93 HF925J8001 Thread trimmer solinoid 1 1 H94 H415060220 Bolt 2...

Page 48: ...I HOOK SADDLE MECHANISM LEFT 47...

Page 49: ...ving shaft mandril 1 I19 H415030060 Bolt 2 M3 6 I20 H005004030 Washer 2 I21 HF914J8001 Driving knife 1 I22 HF913J8001 Driving knife shaft 1 I23 H415050250 Bolt 2 M5 25 I24 H005005050 Washer 2 I25 HF90...

Page 50: ...ng pin 1 I61 HF90BJ8001 Adjusting guide rail 1 I62 HF997J8001 Bolt 2 I63 HF995J8001 Shaft 1 I64 HF92AJ8001 Oil wick 1 I65 H424050300 Bolt 1 M5 30 I66 HF992J8001 Spacer 1 I67 HF981J8001 Hook shaft 1 I6...

Page 51: ...01 Driving gear 1 I88 H403030080 Screw 4 I89 387018 O ring 1 I90 H415040100 Bolt 4 M4 10 I91 HG025J8001 Thread trimmer solenoid 1 I92 HG019J8001 Solenoid setting bracket 1 I93 H415040080 Bolt 1 M4 8 I...

Page 52: ...J OIL LUBRICATION MECHANISM 51...

Page 53: ...J OIL LUBRICATION MECHANISM 52...

Page 54: ...19K8001 Spring 1 1 J20 HF962K8001 Tape 1 1 J21 HA04042160 Screw 2 2 J22 HF960K8001 Guard plate 1 1 J23 HF956K7101 Valve 1 1 J24 HF955K8001 Main oil pipe 1 1 3 5 110 J25 HF920K8001 Oil joint 2 4 J26 HF...

Page 55: ...HF925K8001 Oil pipe 1 1 7 5 110 J48 HF926K8001 Support spring 2 2 J49 HF932K8001 Felt part 1 1 J50 HA300I2040 Cable tie 1 1 J51 HF934K8001 Oil pipe 1 1 3 5 250 J52 HF937K8001 Oil pipe 1 1 3 5 600 J53...

Page 56: ...K ACCESSORIES 55...

Page 57: ...HF904L8001 Cover 1 1 K12 16250 Oil plate 8 8 K13 HB00001025 Nail 1 1 K14 HB00001015 Hexagonal wrench 2 5 1 1 K15 HA300J2070 Hexagonal wrench 1 5 1 1 K16 HA300J2200 Screw driver L 1 1 K17 HA300J2210 S...

Page 58: ...L PNEUMATIC CONTROL UNIT 57...

Page 59: ...HF929M7101 Count to alarm wire assy 1 1 L23 HF925M7101 Control box wire assy 1 1 L24 HF938M7101 Reset button assy 1 1 L25 HF917M8001 Solenoid valve set board 1 1 L26 HF941M8001 Solenoid valve cover 1...

Page 60: ...e 1 1 4 750 L48 HF914M8004 Windpipe 1 1 4 800 L49 HF905M8001 Air source units 1 1 TC2010 02U STNC L50 H4919N8001 Wire joint 1 1 EPL6 02 6 1 4 L51 H4914N8001 Wire joint 1 1 EPL8 02 8 1 4 L52 H003002040...

Page 61: ...HG009F8001 HG010F8001 1 HG011F8001 1 Feed dog HG010I8001 HG006I8001 HG006I8002 HG007I8001 HG008I8001 1 HG009I8001 1 Needle plate HG014B8001 HG007B8001 HG007B8001 HG008B8001 HG009B8001 1 HG010B8001 1 S...

Page 62: ...ail sales highlead com cn http www highlead com cn SHANGHAI BIAOZHUN HAILING SEWING MACHINERY CO LTD Overseas Business TEL 86 21 64853303 FAX 86 21 64854304 The description covered in this manual is s...

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