Global WF976, Operation Instructions And Parts Manual

Page 1: ...GLGBAL WF976 CYLINDER BED TWIN NEEDLE COMPOUND FEED LOCKSTITCH SEWING MACHINE OPERATION I INSTRUCTION I PARTS MANUAL From the library of Superior Sewing Machine Supply LLC ...

Page 2: ... Adjusting the pressure of presser foot 7 I9 Function of the safety cIutch 7 20 Adjusting the lift amount of presser foot with walking presser foot 8 21 Adjusting the position of the feed dog 8 22 Timing feed adjustment 8 23 Adjusting the timing between needle and rotating hook 9 24 Relationship between the rotating hook and hook separator 9 25 Removing and installing the rotating hook 9 Parts Man...

Page 3: ...Operation Instruction From the library of Superior Sewing Machine Supply LLC From the library of Superior Sewing Machine Supply LLC www supsew com ...

Page 4: ... floor The insert ofrubber mat between machine stand and floor is recommended for further reducing the runing noise and vibration 2 Oil reservoir installation Fig I Put the oil reservoir into the table cutout and place the four cushions on the four corners of the cutout then place oil felt into the oil reservoir 3 lnstalling the machine head Fig 2 Install the hinge into the base of the machine the...

Page 5: ...hould rotate in the same direction The rotation can be reversed by reversing turn over 180 deg the plug of the motor 4 Adjust the tension ofY belt by moving the motor vertically The proper tension ofY belt is a slack of I0 12mm when the belt is depressed at the belt pan by finger 6 Installing the presser foot lift control plate Fig S Connect the draw bar hook A to the presser foot lift lever V and...

Page 6: ...nut C 19 Operation preparation Cleaning the machine Before delivery the machine parts are coated with rust preventive grease which may be hardened and contaminated by dust during storage and shipment The grease must be removed by clean cloth with gasoline 2 Examination Though every machine has been confirmed by strict test and inspection before delivery the machine parts may be loosed or deformed ...

Page 7: ...ed of I000 1500spm for about 30 minutes then raise the speed gradually 12 Installing the needle Fig 9 Turn the balance wheel to lift the needle bar to its highest position Loosen the needle set screw I make the long groove of the needle toward the left side of the operator then fully insert the needle shank to the bottom of the needle socket Then tighten the screw I to set the needle as Fig a Note...

Page 8: ... three eye thread guide B tension disc C thread control plateD thread take up springE upper thread guide F thread take up lever G upper thread guide Flower thread guide needle bar thread guide J needle K 15 Adjusting the tension ofbobbin thread and needle thread Fig l2 The tension of needle thread and bobbin thread should be properly adjusted Normal stitch form should be as shown in Fig l2 1 If th...

Page 9: ...rial over 8mm Common material around 8mm Heavy duty material less than 8mm Adjusting method as shown in Fig 4 a Loosen the presser foot lever b Loosen the position screw A c Turn the position plate B counter clockwise to increase the vibrating range on the contrary to decrease the vibrating range d Tighten the position screw A 16 Winding adjustment Fig 13 The wound bobbin thread should be neat and...

Page 10: ...ating hook because of abnormal operation the spring plate on the clutch will automatically get off the bushing of belt wheel shaft Turn the eccentric pin to adjust the load on the clutch When the arrow of the eccentric pin is aligned with the center of the lower shaft it indicates the weakest power on the clutch when the arrow is toward the outside the power is stronger When the safety clutch swti...

Page 11: ...e height should be about 0 8mm when sewing common materials the height should be about Imm when sewing extra heavy duty materials the height should be about I Smm when adjusting the position of feed dog first loosen the feed dog screw A and move it vertical1y to reach its required height then tighten the screw 122 Timing feed adjustment Fig 19 I Standard position When the feed dog is just above th...

Page 12: ...rew B so that the clearance between separator and rotating hook is 0 15mm Adjust in accordance with the thickness of materials 4 After adjustment tighten the adjusting screw B 25 Removing and installing the rotating hook Fig 22 If the rotating hook is damaged during sewing replace it as follows I Lift the needle bar to its highest position and remove the needle 2 Remove the slide plate needle plat...

Page 13: ...Parts Manual From the library of Superior Sewing Machine Supply LLC From the library of Superior Sewing Machine Supply LLC www supsew com ...

Page 14: ...1 Arm and bed I 26 JJ 25 4 32 3 49 10 From the library of Superior Sewing Machine Supply LLC From the library of Superior Sewing Machine Supply LLC www supsew com ...

Page 15: ...19 Column I 28 17T5 016 Screw I 29 49WF2 020 Pin I 30 49WF2 021 Oil tube I 31 Oil wick I 32 16WF2 038 Oil retainer I 33 16WF2 059 Screw I 34 90WF2 005 Trade mark 91WF2 006 Trade mark I 35 16WF2 053 Trade mark I 36 Rivet 4 37 I KTI 005 Trade mark I 38 91WF2 007 Needle plate I 39 91WF2 008 Screw 2 11 64 X32 40 91WF2 009 Slide plate assembly L I 41 91WF2 0IO Slide plate assemblyO I 42 91 WF2 0 11 Rig...

Page 16: ...haft and th read take _ up part s 14 12 4 3 t J 7 r 0 s LPf 1 11 i 8 10 6 20 rl 18 12 From the library of Superior Sewing Machine Supply LLC From the library of Superior Sewing Machine Supply LLC www supsew com ...

Page 17: ...ad take up lever pin sh Screw Oil wick Thrcad take up lever de blcok Sli Oil wick Needle bar link Needlc bar crank pin ition screw Pos Screw Oil wick Necd c bar crank Position screw Scrcw Spaccr Screw Up Oil per shaft wick Fro Oil nt bushing felt Middle bushing Screw Rearbushing Rear bushing gasket Screw Rcar bushing bearing awmg ring chronic belt wheel Ret Syn Scr Scr Scr Bal Scr Scr Scr ew ew sh...

Page 18: ...3 Presser bar and draw bar parts 30 u 14 13 26 25 24 r 0 2 29 28 14 From the library of Superior Sewing Machine Supply LLC From the library of Superior Sewing Machine Supply LLC www supsew com ...

Page 19: ...22WF3 0 l l 27 22WF3 012 28 22WF3 0I3 29 22WF3 0I4 30 22WF3 015 Presser foot lift lever Spring Screw Presser foot lift bar Screw Nut Spring Spring bracket Screw Screw Screw Presser bar Presser bar upper hushing Presser bar lower hushing Screw Screw Guide bracket Screw Guide shaft Guide bracket Screw Spring Presser foot lift releasing Presser plate Screw Presser plate pin Preser foot Screw Position...

Page 20: ...4 Lowers k Pa ts haft and ro tating hoo 41 I I I 16 l i I 13 11 12 2 14 9 10 From the library of Superior Sewing Machine Supply LLC From the library of Superior Sewing Machine Supply LLC www supsew com ...

Page 21: ... separator 2 26 91WFI 008 Rotating hook separator 2 27 91WFI 009 Slide block Slide block Set plate assembly 2 28 91WFI OIO Set plate assembly 2 29 16WFI 059 Adjusting screw Adjusting screw 2 30 91WFI 011 Eccentric plate Eccentric plate 2 31 9IWFI Ol2 Screw Screw 4 32 91WF1 013 Rotating hook bracket left I 33 91WFI 018 Rotating hook bracket right I 34 22WFI 050 Screw Screw 1 35 ZZWFI 036 Washer Was...

Page 22: ...5 Feed shaft 1 1 P arts 11 1 8 I 40 18 c 49 48 0 I2 47 42 From the library of Superior Sewing Machine Supply LLC From the library of Superior Sewing Machine Supply LLC www supsew com ...

Page 23: ... 0 81 56 91WF1 006 57 22WF1 005 Nam Feed eccentric w Serew Cam Serew Sere v Feed crank w Sere Serew wick Oil Connccting nut connecting cit Feed Oil f Serew Feed dol w Sere Feed c heel shaft Feed dog support dog support cr plate bracket Press Serew cit Oil f Connecting brack Serew Column Colu11111 p1n Serew Serew cr Wash Spring Spring hook ptn Split Control block Bolt Serew Position hlock Nut Revcr...

Page 24: ...eed and 37 42 38 40 presser foot l ft 1 cr parts 47 48 SJ e eJ 49 4 5 50 20 8 1 13 15 From the library of Superior Sewing Machine Supply LLC From the library of Superior Sewing Machine Supply LLC www supsew com ...

Page 25: ...017 Crank I 25 16WF3 030 Screw 1 26 22WF5 018 Screw I 27 16WF2 023 Washer 1 28 22WF5 019 Gasket l 29 22WF5 020 Wing nut l 30 22WF5 021 Eccentric link I 31 Eccentric link bearing I 32 22WF5 022 Eccentric wheel 1 33 22WF5 023 Screw 2 34 22WF5 021 Collar I 35 22WF4 002 Screw 2 36 22WF5 026 Presser foot lift vibrating plate 2 37 22WF5 027 Screw 1 38 22WF5 028 Link 1 39 Oil wick 1 40 22WF5 029 Presser ...

Page 26: ...parts r 31 10 9 8 27 __ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 22 From the library of Superior Sewing Machine Supply LLC From the library of Superior Sewing Machine Supply LLC www supsew com ...

Page 27: ... Screw Thread guide Set plate Set plate Screw Screw Nut Nut Stop plate Stop plate Spring Spring Thread releasing plate Thread releasing plate Thread tension plate Thread tension plate Thread take up spring Thread control assembl Thread control assemhl Screw Thread take up springs Nut Thread separatine pin Pin long y y haft wrt Thread releasing pin sl Thread releasing pin lo Thread erecting plate n...

Page 28: ...8 Accessories 18 15 1 r 24 23 22 31 24 20 i 14 T 25 26 27 B 29 11 2 7 9 1 34 From the library of Superior Sewing Machine Supply LLC From the library of Superior Sewing Machine Supply LLC www supsew com ...

Page 29: ...in k h ded spanner Box wrcnc Double en Spanner Spanner Spanner Needle Thread spo Bobbinwi Screw ol stand assembly ndcr assembly Washer Oil tank cr big Oil pot Scrcwdriv Screwdriv Screwdriv Accessory Screw Washer Spring was Pedal assem Chain Chain hook Cover er medium er small bag her bly V belt Oil rcservo Screw Screw tr 25 Qt Remark 1 I 2 2 2 2 1 12 I JOX 11 I I S 3mm I S 2 5mm I S l 5mm 6 DPX 17...

Page 30: ...12 91WF2 009 91WF2 010 91WF2 013 91WF2 014 5 16 7 9 88WF2 001D 91WF5 004B 91WF3 001B 91WF2 007B 91WF4 003B 91WF2 011B 91WF2 012B 91WF2 009B 91WF2 010B 91WF2 013B 91WF2 014B 3 8 9 5 88WF2 001E 91WF5 004C 91WF3 001C 91WF2 007C 91WF4 003C 91WF2 011C 91WF2 012C 91WF2 009C 91WF2 010C 91WF2 013C 91WF2 014C 1 2 12 7 88WF2 001G 91WF5 004D 91WF3 001D 91WF2 007D 91WF4 003D 91WF2 011D 91WF2 012D 91WF2 009D 9...