typical GC6-6 Instruction Book
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typical GC6-6 Instruction Book

Compound feed lockstitch sewing machine
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Gc6-7
InsTRUcTIOn bOOk // paRTs caTalOGUE

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  • Page 1 Gc6-6 Gc6-7 InsTRUcTIOn bOOk // paRTs caTalOGUE...

  • Page 2: Table Of Contents

    CONTENTS 1. Brief introduction …………………………………………………………………………………… 2. Main specifications …………………………………………………………………………………… 3. Installation and preparation ……………………………………………………………………… ………………………………………………………………………………………………… 1 Installation …………………………………………………………………………………… 3.1.1 Location of the machine ………………………………………………………………………………………… 3.1.2 Installing drip pan …………………………………………………………………………………… 3.1.3 Mounting machine head ……………………………………………………………… 3.1.4 Mounting rock shaft bracket of knee lifter 3.1.5 Installing the motor …………………………………………………………………………………………...
  • Page 3 6.3 Adjusting the tension releasing mechaninsm …………………………………………………………………… 6.4 Adjusting the pressure of presser foot …………………………………………………………………………… 6.5 Adjusting top feed mechanism ………………………………………… 6.5.1 Adjusting top feed mechanism of machine Model GC6-6 16~17 ………………………………………… 6.5.2 Adjusting the feed mechanism of machine Model GC6-7 17~18 7. Periodical cleaning …………………………………………………………………………………...

  • Page 4: Brief Introduction

    GC6-6 and Model GC6-7 are as follows: are convenient. The feed mechanism of model GC6-6 is constructed by the top feed of walking presser foot and bottom feed of feed dog. 2. Main specifications...

  • Page 5: Installation And Preparation

    3. Installation and preparation 3.1 Installation 119.5 3.1.1 Location of the machine To ensure a smooth running, the machine Should be located on rigid and flat floor.The insert of rubber mat between machine stand and floor is recommended for further reducing the running noise and vibration.

  • Page 6: Installing The Motor

    3.1.5 Installing the motor(Fig.4) Align machin balance wheel belt groove A with motor pulley belt groove B by moving the motor C leftward or rightward. Be sure the belt is not touch with table. i n c o r r e c t Cor rec t 3.1.6 Connecting the clutch lever to the pedal (Fig.5) 1) The optimum tilt angle of pedal A with...

  • Page 7: Installi G The Thread Unwinder N

    3.1.8 Installing the thread unwiner (Fig.7) Locate thread unwinder at the right front of the table, note that spool rest may not obstruct when machine head is turned backward, then tightern wood screw C. 3.2 Preparation 3.2.1 Cleaning the machine Before delivery , the machine parts are coated with rust preventive grease, which may be hardened and contaminated by dust during storage...
  • Page 8 Model GC6-6 Presser foot lift, front crank For vaccum sucking needle bar inside oil, see Fig8E. Model GC6-7 A long oil-return felt should be installed. Hook oil store is not filled with lubrication oil before leaving off the factory. fill oil before use.
  • Page 9 Oil Hole A up to PartF. G. H. I. J(See Fig9). Oil Hole B up to PartC. D. E(See Fig10)through 9 oil wick. The bevel gear cases in Fig. 11 and Fig.12 are packed with grease, which should be replenished periodically as may be consumed gradually after long time of operation .

  • Page 10: Trial Run

    . 4.2 Coordination between needle, thread and sewing material Needle of machine Model GC6-6 is Dp 17, #18-#22 Needle of machine Model GC6-7 is Dp 17, #18-#22 Selection to the needle size should be based upon the thread and material to be sewn.

  • Page 11: Operation

    Installing the needle (Fig.14) Turn the balance wheel to lift needle bar to the highest position, loosen needle set screw 1, fully insert the needle shank upto the bottom of needle socket, then tighten needle set screw 1. Note: Fig.14(b): insufficient insertion, Fig.14(c): wrong direction of long groove.

  • Page 12: Winding Adjustment

    4.4.2 Winding adjustment(Fig.16) 1) Wound bobbin thread should be neat and tight, if not, adjust the thread tension by turning tension stud thumb nut A of bobbin winder tension bracket. Note: nylon or polyester thread should be wound with light tension, otherwise bobbin D might be broketn or deformed.

  • Page 13: Installing The Bobbin Case

    4.7. Installing the bobbin case (Fig.19) 1) Lift the needle bar to its hightest position and open the bed slide. 2) Fully lift bobbin case latch lever A and holding it by fingers, securely install the bobbin case into the rotating hook B.Note that the bobbin case latch is engaged in the positioning groove of rotating hook spindle.

  • Page 14: Adjusting The Thread Take-Up Spring

    It is a common practice to check the bobbin thread tension as shown in Fig. 22. In case of glazed thread #50, hold the end of pulled out thread and to vibrate bobbin case up and down, if the bobbin case fall down slowly, the proper tension is obtained.

  • Page 15: Adjusting The Thread Guide

    5.2 Adjusting the thread guide The position of thread guide affects sewing quality and therefore must be adjusted according to the materials to be sewn and sewing conditions. The normal relationship beween the position of thread guide (Fig.17) and the materials to be sewn is as the following table Rightward Leftward...

  • Page 16: Adjustment

    1) In case of needle thread tension is too strong or bobbin thread tension is too weak, as shown in Fig.25(b), turn the tension regulating thumb nut counter- clockwise to decrease the needle thread tension or tighten the bobbin case tension regulating screw to increase the bobbin thread tension(see Fig.

  • Page 17: Adjusting The Needle Bar Position

    6.1.2 Adjusting rotating hook point timing with needle (Fig. 29) Turn the balance wheel to locate needle bar to its lowest position, and when needle bar lifted again at 2.5mm 1.2 mm from its lowest position, the rotating hook point D should be coincides with needle center line C, and hook point D is 1.2 mm above the upper edge E of needle eye.

  • Page 18: Adjusting The Feed Dog

    6.2 Adjusting the feed dog 6.2.1 Adjusting height of feed dog Turn balance wheel to raise the feed dog to its highest position, at that position, the height of feed 0.8mm~1.2mm dog teeth should be projected 0.8-1mm above throat plate top surface as shown in Fig.32. The height of feed dog teeth of 1mm above the throat plate top surface can be taken while sewing heavy material.

  • Page 19: Adjusting The Pressure Of Presser Foot

    B,b, 6.5 Adjusting top feed mechanism 6.5.1 Adjusting top feed mechanism of machine Model GC6-6 1) Adjusting feed amount The top feed can be adjusted to synchronize with bottom feed or differential with bottom feed.

  • Page 20: Adjusting The Feed Mechanism Of Machine Model Gc6-7

    3) Adjusting the lift amount of presser foot together with walking presser foot The lift amount of walking presser foot together with Presser foot presser foot also can be adjusted slightly. When adjusting, lift front crank loosen nut with a spanner first, then move the presser foot lift regulating screw to change its center distance B between the Above presser foot lift shaft, as shown in Fig.39 The lift amount is...
  • Page 21 2) Adujsting the alternate lift amount of the presser feet Lift amount of the walking presser foot is within 5mm and lift amount of the presser foot is 2.5 mm, when sewing medium or heavy materials. The lift amount of these two presser feet can be changed slightly according to the nature of material or the requirements in sewing.

  • Page 22: Periodical Cleaning

    7. Periodical cleaning 7.1. Cleaning the feed dog(Fig.41) Remove the throat plate and clean off all the dust and lint on the feed dog. Rotating hook Feed dog Cleaning the rotating hook(Fig.42) Lay down the machine head and clean the hook, wipe the bobbin case with soft cloth.

  • Page 23: Troube-Shooting

    8.Trouble shooting Trouble Possible causes Remedy 1. Needle too thin or bent. Change the needle with new one. 2. Wrong set of needle. Refer to the section 4.3. Needle 3. Push or pull the material Support the material gently breaking with hand while sewing.

  • Page 24: Parts Manual

    Parts Manual...

  • Page 25: Model Gc6-6 Arm And Bed

    1.Model GC6-6 Arm and Bed 29 28...
  • Page 26 1.Model GC6-6 Arm and Bed Qty. No . Parts No . Name of parts Remarks 34T4 - 401 - A Machine bed 34T4 - 402 - A Machine arm Screw M10 28 GB5782-86 M12 38 GB5782-86 Screw 33T4 - 011...

  • Page 27: Model Gc6-7 Arm And Bed

    2.Model GC6-7 Arm and Bed 29 28...
  • Page 28 Model GC6-7 Arm and Bed Qty. No . Parts No . Name of parts Remarks 34T4 - 401 - A Machine bed 34T4 - 402 - A Machine arm Screw M10 28 GB5782-86 M12 38 GB5782-86 Screw 33T4 - 011 Screw M12 38 GB5782-86 M6 30 GB117-86...

  • Page 29: Model Gc6-6 Needle Bar And Thread Take-Up

    Model GC6- 6 Needle Bar And Thread Take-up...
  • Page 30 Model GC6- 6 Needle Bar And Thread Take-up Qty. No . Parts No . Name of parts Remarks 33T1 - 001 Thread take-up crank 33T1 - 004B1 Thread take-up lever 33T1 - 004B2 Thread take-up lever eyelet bushing 33T1 - 003A1 Thread take-up lever link 2 30 33T1 - 003A2...
  • Page 31 Model GC6-7 Needle Bar And Thread Take-up...

  • Page 32: Model Gc6-7 Needle Bar And Thread Take-Up

    Model GC6-7 Needle Bar And Thread Take-up Qty. No . Parts No . Name of parts Remarks 33T1 - 001 Thread take-up crank 33T1 - 004B1 Thread take-up lever 33T1 - 004B2 Thread take-up lever eyelet bushing 33T1 - 003A1 Thread take-up lever link 2 30 33T1 - 003A2...

  • Page 33: Arm Shaft And Vertical Shaft

    5. Arm Shaft And Vertical Shaft 11 12...
  • Page 34 5. Arm Shaft And Vertical Shaft Qty. No . Parts No . Name of parts Remarks 33T1 - 008 Arm shaft 33T1 - 007D1 Arm shaft flanged bushing(front) 33T1 - 007D2 Arm shaft bushing oil pad(felt) SM15/64" 28 10 Arm shaft bushing set screw 33T1 - 009E1 Arm shaft bushing (middle) 22T3 - 002B1...

  • Page 35: Rotating Hook And Its Shaft

    6. Rotating Hook And Its Shaft 9 10...

  • Page 36: Name Of Parts

    6. Rotating Hook And Its Shaft Qty. No . Parts No . Name of parts Remarks 33T1 - 020L Hook shaft complete 22T4 - 002B1 Collar for hook shaft SM15/64" 28 4.5 J0 0 35 Screw 33T1 - 021M1 Rear bushing 33T1 - 021M2 Felt SM15/64"...

  • Page 37: Stitch Length Regulating

    7. Stitch Length Regulating...
  • Page 38 22T5 - 008 Stop pin 22T5 - 009 Spring O-type ring 14 2.4 33T2 - 013 -A Stitch length adjusting swing bar GC6-6-1 36T2-022 17T5 - 010 Set screw SM1/4" 40 9 33T2 - 024 -A Hinge pin J0 0 Screw SM15/64"...

  • Page 39: Bottom Feed

    8. Bottom Feed 31 32...
  • Page 40 8. Bottom Feed Qty. No . Parts No . Name of parts Remarks 33T2 - 14 - A Feed cam 22T1 - 013 Screw SM15/64" 28 8 22T3 - 009D1a2 Fork slide block complete 33T2 - 17 - A Fork 34T2 - 202 - A Feed crank 22T6 - 001A1b...
  • Page 41 Model GC6- 6 Presser Bar...
  • Page 42 Model GC6- 6 Presser Bar Qty. No . Parts No . Name of parts Remarks 34T3 - 003 Presser bar lifter 22T7 - 001A2 Presser bar lifter position screw SM11/64" 40/6 33T3 - 004 Presser bar lifting cam 34T3-306 Presser foot 22T7 - 004B1a Knee lifter lever(left) 22T7 - 004B1b...

  • Page 43: Model Gc6-7 Presser Bar

    Model GC6-7 Presser Bar...
  • Page 44 Model GC6-7 Presser Bar Qty. No . Parts No . Name of parts Remarks 34T3 - 003 Presser foot llifter 22T7 - 001A2 Presser foot llifter position screw SM11/64" 40/6 33T3 - 004 Presser foot llifting cam JO O 40 Presser bar guide bracket set screw 22T7 - 004B1a Knee lifter lever(left)
  • Page 45 Model GC6- 6 Top feed...
  • Page 46 Model GC6- 6 Top feed Qty. No . Parts No . Name of parts Remarks 35T5 - 501 Walking presser foot pressure regulating thumb screw wick 35T5 - 502 Walking presser foot pressure regulating thumb screw 35T5 - 503 Walking presser foot pressure regulating thumb screw lock nut 35T5 - 504 Walking presser foot pressure regulating thumb screwv bracket 35T5 - 505...

  • Page 47: Model Gc6-6 Top Feed

    Model GC6-7 Top feed...

  • Page 48: Model Gc6-7 Top Feed

    Model GC6-7 Top feed Qty. No . Parts No . Name of parts Remarks 34T5-501 Oil felt 35T5-503 Screw 34T5-503 35T5-501 Presser bar spring J0.0.40 Screw 35T5-504 Needle bar move stand shaft 35T5-505 Spring bar 35T5-507 Presser foot up and down link 35T5-508 Connector 6WF5-002...

  • Page 49: Lubrication

    13. Lubrication...
  • Page 50 13. Lubrication Qty. No . Parts No . Name of parts Remarks 22T8 - 011C Oil wick fixing plate assembly SM/64" 40 11 22T8 - 012 Oil wick fixing plate screw SM9/64" 40 4.5 22T8 - 011C4 Oil wick fixing hook screw 22T8 - 011C5 Oil wick fixing hook 22T8 - 0113...

  • Page 51: Drip Pan And Knee Lift

    14. Drip Pan And Knee Lifter...
  • Page 52 14. Drip Pan And Knee Lifter Qty. No . Parts No . Name of parts Remarks 33T5 - 001 Drip pan Nail 33T5 - 003 Knee lifter pushing rod 33T5 - 004 Knee lifter pushing rod guide bushing Hexagon nut M12 1 GB6172-86 ST4.8 25 GB5284-85 Round head wood screw...

  • Page 53: Accessories

    15. Accessories...
  • Page 54 15. Accessories Qty. No . Parts No . Name of parts Remarks 22T9-012 Oil pot 33T1-002 Hinge 22T9-007F2 Rubber coat GJX-2 Spool stand complete 33T1-027 Bobbin Parts bag Arm vibration proof washer bock 1Pack Needle 33TF-015 Screw driver(small) 33TF-014 Screw driver 33TF-013 Screw driver(big) Wood screw...
  • Page 55 TYPICAL SEWING MACHINE WANPING MACHINERY CO.,LTD. TYPICAL SEWING MACHINE WANPING MACHINERY CO.,LTD. ADD: WANPING TOWN, WUJIANG CITY, JIANGSU PROVINCE, CHINA TEL: +86-512-63391627 63391278 FAX: +86-512-63391371 POST. CODE: 215223 Http://www.typicalwpchina.com E-mail:bzwf@public1.sz.js.cn...
  • Page 56 Gc6-6 // -7 This machine may only be operated by adequately trained operators only after having completely read and understood the instruction manual. Parts are subject to changes in design without prior notice. Certificate of the Certificate of the Certificate of the...

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