HIGHLEAD DY-850 Instruction Manual Download Page 41 | Manualshive

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I.倒缝、上轮部件 TOUCH BACK MECHANISM & MOTOR MECHANISM

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Summary of Contents for DY-850

Page 1: ...egrated Direct Drive Top And Bottom Feed Lockstitch Sewing Machine With Long Stitch Length And Electronic Control Instruction Manual Parts Catalog SHANGHAI BIAOZHUN HAILING SEWING MACHINERY CO LTD DY...

Page 2: ...WIND THE LOWER THREAD ON THE BOBBIN 12 15 ADJUST OPENING TIME OF THE TENSION DISCS 13 16 ADJUST THE HEIGHT OF FEED DOG 13 17 ADJUSTMENT OF FEED DOG INCLINATION 14 18 TIME FEED MOTION TO NEEDLE MOTION...

Page 3: ...when the machine is in operation 6 If a mini motor cover finger guard and or eye guard are installed do not operate the machine without these safety devices 2 Precaution before Starting Operation 1 2...

Page 4: ...chine parts are coated with rust preventive grease which may be hardened and contaminated by dust during storage and shipment This grease must be removed with gasoline 2 Examination Though every machi...

Page 5: ...speed sewing Be sure to replenish oil to Line A before starting operation 3 Replacing oil To replace oil remove Screw C to drain oil After completely draining off oil clean the oil reservoir and secu...

Page 6: ...terclockwise to decrease oil Oil Adjusting Screw A adjusts oil amount within 5 turns When Oil Adjusting Screw A is fully tightened oil amount is maxi mum Readjustment depends on temperature sewing spe...

Page 7: ...r threads it may be avoided by fitting the needle with the long groove shifted to the front side 6 THREADING Raise the thread take up lever to its highest position and thread the upper thread in the f...

Page 8: ...uring sewing reverse sewing can be done When the push button is released reverse sewing turns into forward sewing Push the lighting button to turn on the LED light 8 POSITION PRESSER BAR E A B C 6 C A...

Page 9: ...ting thumb screw b to decrease the pressure Then tighten Lock Nut A The pressure of presser foot is recommended to be less as long as normal feeding is ensured 10 ADJUST THREAD TAKE UP SPRING 8 10 The...

Page 10: ...way back counterclockwise After the adjustment Tighten Set Screw A 2 Adjusting the thread take up spring stroke B C C Loosen Set Screw B turn Stud C clockwise to increase the stroke or turn Stud C cou...

Page 11: ...d tension 3 For special fabric sewing with special thread the desired tension can be obtained by adjusting the strength and operating range of thread take up spring 4 Adjusting of lower thread tension...

Page 12: ...B C E D F G B Turn balance wheel by hand to bring Needle Bar C to the lowest position of its stroke Remove rubber plug from Face Plate A Loosen Set Screw B of needle bar adaptor Move Needle Bar C ver...

Page 13: ...o align Hook Point D and Needle Centerline C when Needle Bar B is lifted by 2 2mm from the lower end of its stroke Besides Hook Point D should be 1 0 1 5mm above the upper end of needle eye E F G 0 05...

Page 14: ...BIN 1 2 3 4 5 6 a a b b 1 Press the bobbin onto the thread winding shaft 2 Pass the thread for winding thread as shown in the figure and wind the end of the thread clockwise around the bobbin several...

Page 15: ...adjustment to put under the presser foot C a block as thick as the presser foot lift After the adjustment fully tighten Screw A 16 ADJUST THE HEIGHT OF FEED DOG 1 2 A 3 B B 1mm 4 A 1 Turn balance whee...

Page 16: ...ON A B C B The standard timing of feed motion to needle motion is that the top of feed Dog C is flush with Throat Plate Surface B when the point of Needle A reaches Throat Plate Surface B A D B C G B...

Page 17: ...ween Feed and Feed Lifting Eccentric B and Eccentric Sleeve H then tighten Set Screws A and D 19 ADJUSTMENT OF THREAD TRIMMER MECHANISM 1 The thread trimmer mechanism illustrated 2 Operation stroke of...

Page 18: ...rotates the thread trimming cam which rotates the movable knife When the movable knife has moved to its farthest distance the standard engagement of the blade is 1 5mm 2 0mm The engagement can be adj...

Page 19: ...to be made by screwing 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 c...

Page 20: ...A ARM BED AND IT S ACCESSORIES 18...

Page 21: ...71 Check window 1 A21 HA710B0671 Nut 1 A22 H6739B8001 Thread tension spring 1 A23 HA310B0705 Thread tension disc 4 A24 H6735B8001 Thread tension stud 1 SM15 64 28 A25 H6736B8001 Thread guide 1 A26 H67...

Page 22: ...O O ring 1 A51 HA310B0703 Thread tension regulating bushing 1 A52 HA806B0671 Thread take up spring 1 A53 HA806B0673 Screw type tension stud 1 A54 HA115B0709 Thread tension releasing pin 1 A55 HA310B0...

Page 23: ...B NEEDLE BAR ARM SHAFT MECHANISM 21...

Page 24: ...w 1 SM9 32 28 B21 HA100C2020 Set screw 1 SM15 64 28 B22 HA104C0653 Hinge pin 1 B23 H2004H0681 Therad take up lever 1 B24 HA100C2070 Set screw 1 SM9 32 28 B25 HA307C0661 Needle bar crank 1 B26 HA104D06...

Page 25: ...g 1 B56 HA305E0662 Set screw 2 SM15 64 28 B57 HA305E0661 Collar for hook shaft 1 B58 HA311E0671 Hook shaft bushing right 1 B59 HA110E0672 Oil pipe 1 B60 HA300E2100 Plunger 1 B62 H1100E2010 Bobbin 1 B6...

Page 26: ...C STITCH REGULATOR MECHANISM 24...

Page 27: ...HA7421F120 Dial 1 C17 HFF9128001 Plate for stitch length 1 C18 HA720F0685 Bushing 1 C19 HA720F0686 Screw 1 C20 HFF9068001 Feed regulator 1 C21 HFF9078001 Spring retainer 1 C22 HFF9058001 Spring 1 C23...

Page 28: ...D FEEDING AND FEED LIFTING MECHANISM 26...

Page 29: ...28 D16 HA100G2040 Bushing for feed rock shaft 1 D17 HA108G0661 Collar 1 D18 H6006D8001 Feed rock shaft 1 D19 H2100G2040 Hinge pin 1 D20 HA104F0654 Screw 1 D23 HA100G2070 Hinge pin 1 D24 HA104G0012 Scr...

Page 30: ...E PRESSER FOOT MECHANISM 28...

Page 31: ...esser bar 1 E13 HA300H2090 Presser bar bushing 1 E14 H3800H2020 Vibrating presser foot 1 E15 HA100H2150 Screw 1 SM9 64 40 E16 HA100C2190 Screw 1 SM11 64 40 E17 HA300H2120 Upper thread guide 1 E18 HA10...

Page 32: ...F PRESSER LIFTING FEEDING MECHANISM 30...

Page 33: ...Lifting presser spring guide pin 1 F20 H2100I2190 Lifting presser spring 1 F21 H2007J0066 Presser spring guide 1 F22 H2004J0662 Screw 1 F23 H2004J0653 Screw 2 F24 H2100I2130 Presser feed crank link 1...

Page 34: ...I0065 Crank shaft compl assy 1 F51 H2008N0066 Lock nut 1 F52 H2004J0654 Presser rod 1 F53 H2000I2050 Screw 3 F54 H2004J0658 Lifting presser guide plate 1 F55 H2010J0066 Lifting presser adjusting nut 1...

Page 35: ......

Page 36: ...G OIL LUBRICATION MECHANISM 33...

Page 37: ...1 G06 H5604G0065 Oil pipe for arm shaft 1 G07 H6013I7101 Oil pipe for hook shaft 1 G08 H6006I8001 Oil pump body 1 G09 HA100I2090 Screw 3 G10 H6010I8001 Oil pump impeller 1 G11 H6011I8001 Impeller slid...

Page 38: ...H THREAD TRIMMER MECHANISM 35...

Page 39: ...80 Set screw 4 H20 HA300C2030 Set screw 4 H21 HA708P0668 HP 3N Cord holder 1 H22 HA704O0657 Rubber plug 1 H23 HA700Q0010 Connector plug 2 H24 HA7641B319 Connector 2 H25 HA7111N704 Set screw 1 H26 HA71...

Page 40: ...906N0661 Stopper lever 1 H50 HA700N0110 Coil spring 1 H51 HA715N0711 Collar with screw 1 H52 HA700N0050 Brshing 1 H53 HA700N0040 Coil spring 1 H54 HA706N0664 Washer 1 H55 HA7211N206 2 Cam follower cra...

Page 41: ...I TOUCH BACK MECHANISM MOTOR MECHANISM 38...

Page 42: ...I15 H2204G0651 Screw 1 I16 HY92L68001 Upper shaft cap set 1 I17 H431060080 Screw 2 M6 8 I18 HY93L17101 Oil seal 1 I19 HY93L68001 6807ZZ Connect block 6807ZZ 1 I20 HFL9098001 Coupling 1 I21 HY92L48001...

Page 43: ...2018 3 8...

Page 44: ...J ACCESSORIES 40...

Page 45: ...type ring 1 J18 HA106J0661 Knee lifter lifting rod 1 J19 H6009L8001 Gasket for oil reservoir small 1 J20 HA104J0652 Oil drain screw 1 J21 HA104J0653 Washer 1 J22 HA300J2160 Hinge pin for knee lifter...

Page 46: ...201612 Zip Code 201612 86 21 64061284 86 21 64462799 86 21 64851424 86 21 64069792 Overseas Business TEL 86 21 64853303 FAX 86 21 64854304 E mail sales highlead com cn http www highlead com cn The des...

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