HIGHLEAD GC1918 -MDZ, Instruction Manual

Page 1: ...Parts Catalog SHANGHAI BIAOZHUN HAILING SEWING MACHINERY CO LTD GC1918 MDZ Direct Drive Semi Dry Top Variable Feed Lockstitcher With Auto Thread Trimmer Instruction Manual...

Page 2: ...uide 5 5 Adjusting the thread tension 5 6 Adjustment of upper thread tension 6 7 Adjustment of lower thread tension 6 8 Adjustment of remaining needle thread length after thread trimming 6 9 How to wi...

Page 3: ...e 16 PARTS CATALOG A Arm bed Its accessories 17 B Needle bar and thread take up mechanism 20 C Feeding and feed lifting mechanism 23 D Stitch regulator mechanism 26 E Top feed rock shaft mechanism 29...

Page 4: ...sump never operate the machine before filling it 2 If the machine is lubricated by a drop oiler never operate the machine before lubricating 3 When a new sewing machine is first turned on verify the...

Page 5: ...en the 1st mark of pulley is align with the timing mark arm tighten the screw 2 then tight the screw 1 4 PRECAUTIONS FOR STARTING TO OPERATE 1 Lubrication Before starting sewing machine operation fill...

Page 6: ...ewing in the screw by 2 to 3rotations by hand at first then tightening them evenly by use of a long size screw driver 3 Lay down the machine head and clean the hook and inner bobbin case b Maintenance...

Page 7: ...thread Fabric 9 100 to 80 Extra thin fabric such as de Chin Georgette Organdy etc 11 80 to 60 Thin fabric such as Silk Calico Poplin etc 14 60 to 50 General fabrics such as Cotton Wooden fabric etc 16...

Page 8: ...ned 180 degrees in the direction of the arrow the switch will be locked and backward sewing will not take place even if the button is pressed 4 Adjusting of the thread guide 1 2 3 Thread guide positio...

Page 9: ...djusting of lower thread tension 1 Lower thread tension can be adjusted by screw A 2 In the case of cotton thread 60 the thread tension can be checked as the following Hold the end of pulled out threa...

Page 10: ...plate a The thread winding amount will decrease when moved in the direction of a b The thread winding amount will increase when moved in the direction of b 10 Adjustment of feed dog height and inclin...

Page 11: ...e eccentric shaft and adjust 3 The forward stitch length will increase and the backward length will decrease when the eccentric shaft is turned counterclockwise 4 The forward stitch length will decrea...

Page 12: ...engagement pressure loosen the lock nut and then adjust the adjustment screw 14 Adjustment of top feeding 1 The top feeding amount will increase when turning the top feeding dial clockwise side and de...

Page 13: ...nd Adjust the sewing shift by turning the top feeding dial counterclockwise side 2 In case of the upper cloth longer at the sewing end Adjust the sewing shift by turning he top feeding dial clockwise...

Page 14: ...r foot down 3 The stronger the top feed dog pressure becomes the better the top feed efficiency will become The weaker the top feed dog pressure becomes the worse the top feed efficiency will become 4...

Page 15: ...auge removal a Remove the needle by loosening the needle set screw A b Remove the presser foot by loosening the presser foot set screw B It is very easy to remove the presser foot by raising the Top f...

Page 16: ...of front back positions for presser foot 1 the attaching hole A is a elongated hole 2 The distance B between the presser foot long groove and the needle drop center is to be adjusted to approx 1 mm wh...

Page 17: ...or the dimension B in case of the puller type gauge becomes 1 0 mm 6 Tighten the setscrew C on the upper horizontal arm Caution It is recommended to tighten the setscrew C while pushing the upper hori...

Page 18: ...as follows In case of the pusher type top feed dog 3 0 mm Incase of the puller type top feed dog 1 6 mm 6 Tighten the setscrew A securely after adjusting 24 Adjustment of top feed arm and top feed lev...

Page 19: ...ic Button 1 is not operated means the upper feed pitch under the ordinary sewing state c The value indicated with the indicator 4 when the Pneumatic Button 1 is fully pressed means the max upper feed...

Page 20: ...A ARM BED AND IT S ACCESSORIES 17...

Page 21: ...B2170 Screw 7 A21 HA300B2170 Screw 2 A22 HM01B58001 Arm side cover 1 A23 HD544B8001 Arm side cover gasket 1 A24 HE71B78001 Gasket for face plate 1 A25 HA300B2090 Rubber plug 1 A26 HA307B0673 Rubber pl...

Page 22: ...HA310B0702 Thread tension releasing discs 1 A65 HA115B0703 Thread tension spring 1 A66 HA115B7010 Thumb nut revolution stopper 1 A67 HA310B0701 Thumb nut 1 A68 HA111G0683 Screw 2 A69 H3400C2030 Washe...

Page 23: ...B NEEDLE BAR AND THREAD TAKE UP MECHANISM 20...

Page 24: ...672 Screw 2 B21 HD544C8001 Screw 3 B22 HE71C08001 Feed regulator stud 1 B23 HA7311CE06 Link stud 2 B24 HM01C17101 Adjusting crank assy 1 B25 HA111G0683 Screw 1 B26 HE71C18001 Feed regulator stud 1 B28...

Page 25: ...lar 1 B51 HA100B2110 Screw 2 B52 H6706H8001 Square block 1 B53 HA300B2090 Rubber plug 1 B54 H6711B8001 Needle bar bushing upper 1 B55 H2504D0653 Screw 1 B56 HM00H88001 Needle bar 1 B57 H8813B8001 Need...

Page 26: ...C FEEDING AND FEED LIFTING MECHANISM 23...

Page 27: ...8813D8001 Ball bearing 1 C20 H6714B8001 Bushing 1 C21 H6745B8001 Oil seal 2 C22 H8805D8001 Feed lifting rock shaft 1 C23 H6708D7101 Gear large 1 C24 H6705E8001 Lever feed eccentric cam 1 C25 H30211C20...

Page 28: ...ft 1 C55 H6712F8001 Oil wick 1 C56 H6726E8001 Screw 1 C57 HA706C11B2 Pin 2 C58 HA7311C606 Screw 1 C59 H6707E8001 Feed rock shaft crank 1 C60 H6748B8001 Oil seal 1 C61 H8829B8001 Bushing 1 C62 H8807E80...

Page 29: ...D STITCH REGULATOR MECHANISM 26...

Page 30: ...18 HA720F0685 Bushing 1 D19 HA720F0686 Screw 1 D20 HE71G68001 Spring 1 D21 H6710E8001 Eccentric shaft 1 D22 H8830B8001 Bushing 1 D23 HE71G27101 Screw bar assy 1 D24 H8810G8001 Shaft 1 D25 HA307C0662 S...

Page 31: ...scription Pcs Remarks D45 H6708E8001 Stitch length adjusting crank 1 D46 HA7311CE06 Link stud 1 D47 HA7311CD06 Screw 2 D48 H6713E8001 Feed regulator shaft 1 D49 H6723E8001 Coil spring 1 28 D STITCH RE...

Page 32: ...E TOP FEED ROCK SHAFT MECHANISM 29...

Page 33: ...H3000D2030 Screw 1 E20 H3207F0672 Screw 1 E21 HD514F8001 Pin 1 E22 HM00G68001 Top feed arm 1 E23 HD526F8001 Coil spring 1 E24 HA304G0656 Screw 1 E25 HM00G78001 Feed reverse shaft 1 E26 HD547F8001 Top...

Page 34: ...H7212I8001 Washer 1 E48 HM02G18001 Bracket 1 E49 HB2266J081 Screw 1 E50 HM01G68001 Cylinder 1 E51 H415040200 Screw 2 E52 H415030080 Screw 2 E53 HM02G08001 Plate 1 E54 HM01G98001 Collet 1 E55 HM01G7710...

Page 35: ...F PRESSER FOOT MECHANISM 32...

Page 36: ...8001 Screw 1 F20 HE71J58001 knee lifter lever right 1 F21 HE71J68001 Screw 1 F22 HA706N0663 Nut 1 F23 HE71J98001 Spring for knee lifter lever 1 F24 H6510H8001 Pin 1 F25 H4739E8001 Snap pin 1 F26 HE71J...

Page 37: ...F52 H007013030 Retaining ring E type 1 F53 H6732J8001 Tension release pin spring 1 F54 HM00J68001 Presser bar 1 F55 HD528Q8001 Top feed lifting pin 1 F56 HD511B8001 Presser bar bushing 1 F57 HM00J980...

Page 38: ...G TOP FEED MECHANISM 35...

Page 39: ...rew 2 G19 H3011D0681 Thrust collar 1 G20 HM00I68001 Upper horizontal rocker shaft 1 G21 HE70B98001 Upper horziontal bushing Left 1 G22 HD509I8001 Upper horizontal forked arm 1 G23 HD520C8001 Washer 1...

Page 40: ...Part No Description Pcs Remarks G44 HD548Q8001 Top feed dog base 1 G45 HD549Q8001 Top feed dog 1 G46 HA700B2060 Screw 1 G47 H3000D2030 Roller stud 1 G48 HD513C8001 Rubber plug 1 10 5 37 G TOP FEED MEC...

Page 41: ...H PRESSER FOOT MECHANISM 38...

Page 42: ...81 Washer 2 H12 HE72J48001 Slide cover 1 H13 H6736K8001 Screw 2 H14 HB2275J081 Washer 2 H15 HB2265J081 Shaft 1 H16 H7353G8001 Washer 1 H17 H007013060 E type stop ring 1 H18 HB2253J081 Arm 1 H19 HB2272...

Page 43: ...I THREAD TRIMMER MECHANISM 40...

Page 44: ...6J081 Tubing clamp 1 I20 H6733K8001 Washer 1 I21 H8805K8001 Shaft 1 I22 H6713K8001 Stopper lever 1 I23 HA113F0684 Screw 1 I24 H6735K8001 Screw 1 I25 H6711K8001 Bracket plate 1 I26 H6736K8001 Screw 2 I...

Page 45: ...ade 1 I51 HA7121N204 Fixed blade 1 I52 HA7121N304 Screw 1 I53 HA7121N404 Thread finger 1 I54 HA7311CH06 Screw 1 I55 H6721K8001 Thread trimmer driving lever 1 I56 HA712N6910 Flexible wire holder 1 I57...

Page 46: ...J TOUCH BACK MECHANISM 43...

Page 47: ...Screw 2 J10 H8805L7101 Cord assy 1 J11 HA704O0657 Rubber plug 1 J12 HA704O0658 Insulator seat 1 J13 HA704O0655 Screw 1 J14 HA704O6510 Screw 2 J15 HA7641B319 Terminal pin 2 J16 HG50N68001 Connector cap...

Page 48: ...K MOTOR MECHANISM 45...

Page 49: ...1 K05 HM00N58001 Pulley 1 K06 H431060060 Screw 2 K07 H415040100 Screw 4 K08 H609030080 Spring pin 1 K09 HZ11030080 Screw 2 K10 HG51B98001 Sensor 1 K12 HD510Q8001 Washer 1 K13 HA107H0662 Screw 1 K14 HG...

Page 50: ...L OIL LUBRICATION MECHANISM 47...

Page 51: ...O ring 1 L19 HA100I2090 Screw 10 L20 H6708P8001 Oil pipe connector 2 L21 H8807P8001 Oil pipe 2 L22 H6715P8001 Oil pipe connector 2 L23 H8807P8008 Oil pipe 1 L24 H6714P8001 Pipe holder 3 L25 H6757B8001...

Page 52: ...M ACCESSORIES 49...

Page 53: ...01020 Hexagon socket screw key 1 M19 HB01001030 Hexagon socket screw key 1 M20 HA300J2200 Screw driver middle 1 M21 HA300J2210 Screw driver small 1 M22 H8822Q8001 Up position gauge 1 M23 HA106J0668 Kn...

Page 54: ...ss TEL 86 21 64853303 FAX 86 21 64854304 E mail sales highlead com cn http www highlead com cn The description covered in this manual is subject to change for improvement of the commodity without noti...