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Summary of Contents for WF904

Page 1: ... GLGBAL WF904 INDUSTRIAL SE VING MACHINE Flat Bed Extra Heavy Duty Compound Feed INSTRUCTION MANUAL CATALOG ...

Page 2: ... r INSTRUCTION MANUAL ...

Page 3: ...E LE 3 5 IN ING OF BOBBIN TIIREA 4 6 A JUSTMENT OF TIIE BOBBIN INl ER 4 7 TIIREA ING 5 8 REMOVING AN INSERTING THE BOBBIN 5 9 A JUSTING THE THREA TENSION 6 I0 ADJUSTMENT OF PRESSER PRESSURE 6 11 ADJUSTMENT OF ALKING F OOT AND PRESSER FOOT 7 12 ADJUSTMENT OF STTICII LENGTII AN FOR ARl BACK ARD SE ING 7 13 F EE DOG IIEIGIIT 8 14 ADJUSTING TIIE IIEIGHT OF TIIE NEE LE BAR 8 ...

Page 4: ...he needle or the pulley when the machine is in operation 2 Precautions before Operation CD Never operate the machine before it is lubricated fully When a new sewing machine is first turned on verify the rotational direction ofthe pulley with the power on The pulley should rotate counterclockwise when viewed from the pulley Verify the voltage and phase single or three with those given on the motor ...

Page 5: ...ough every machine is confirmed by strict inspection and test before leaving the factory the machine parts may be loose or deformed after long distance transportation with jolt A thorough examination must be performed after cleaning the machine Tum the pulley to see if there is running obstruction parts collision uneven resistance or abnormal noise If these exist adjustment must be made accordingl...

Page 6: ...t 1 month after lubricated fully Then increase the speed to the need one 4 HOW TO ATTACH A NEEDLE Fig 2 CAUTION Before using the following procedures be sure to tum the power switch off _Oil_ cl tmp k i 1 loft The needle used by this sewing machine is DYx3 26 During operation proper needle can be chosen according to the sewing thread The sewing thread should be able to pass the pinhole 3 0 Fig 2 x...

Page 7: ...wheel will engage and then start the machine 4 The driven wheel will automatically be free from the driving wheel and stop after the bobbin is filled with thread Fig 3 6 ADJUSTMENT OF THE BOBBIN WINDER Fig 3 1 In case ofuneven winding Ifthe thread does not wind evenly on the bobbin loosen the nut CD and move the bracket to the right or to the left as may be required then tighten the nut 2 Winding ...

Page 8: ...rated below Fig 4 8 REMOVING AND INSERTING THE BOBBIN I Removing Open the shuttle race cap and the bobbin holder then take out the bobbin 2 Installation Put the bobbin in the rotary hook case Permit about 5cm of bobbin thread to hand down freely Install the bobbin in the bobbin case so that the thread wound direction is clockwise Then colse the rotary hook and the shuttle race cap 5 ...

Page 9: ... tension while turning it to the left counter clockwise will decrease the tension 2 Tension ofthe lower thread The lower thread tension is controlled by the larger screw near the end ofthe spring at the outside of the bobbin case Turning this screw to the right clockwise will increase the thread tension while turning it to the left counter clockwise will decrease the tension 10 ADJUSTMENT OF PRESS...

Page 10: ...osition relation of the connecting link 2 and the crank 3 can complete the adjustment 3 Adjustment should be changed according to the thickness of the material to be sewn Fig 7 12 ADJUSMENT OF STITCH LENGTH FORWARD BACKWARD SEWING Fig 8 1 Adjusting the stitch length adjusting bolt can change the stitch length 2 Stitch length can be adjusted between 0 11 mm 4 Setting the stitch length adjusting bol...

Page 11: ...ing it Then tighten the screw Fig 9 14 ADJUSTING THE HEIGHT OF THE NEEDLE BAR Fig 10 1 5mm When the needle bar is at its highest point normally the measurement between the highest point of the needle plate and the needlepoint is 28 mm When this distance need to be adjusted the steps is as follows I Take down the face plate adjust the needle bar to its highest position 2 Loosen the screw ofneedle b...

Page 12: ...PARTS CATALOG ...

Page 13: ...A BODY AND ITS ACCESSORIES ...

Page 14: ...1017 Face plate 1 I A18 H9601018 Screw 2 Al9 H9601019 Thread guide 1 A20 H9601020 Screw 1 A21 H9601021 Nut 1 A22 H9601022 Tension spring 1 i A23 H9601023 Tension disc 2 A24 H9601024 Tension screw stud 1 A25 H9601025 Tension nut 1 A26 H9601026 Thread tension regulator complete base 1 A27 H9601027 Screw 2 A28 H9601028 Tension releasing disc 1 A29 H9601029 Screw 1 A30 H9601030 Thread guide 1 A31 H960...

Page 15: ...3 H9601043 Nut 1 A44 H9601044 Tension spring 1 A45 H9601045 Tension disc 1 A46 H9601046 Thread tension regulator complete base 1 A47 H9601047 Screw 1 A48 H9601048 Thread guide 1 A49 H9601049 Screw 1 A50 H9601050 Rubber plug 1 ...

Page 16: ...B NEEDLE BAR AND THREAD TAKE UP MECHANISM q I 30 29 31 32 33 4 ...

Page 17: ...ing ring E type 1 B18 H9602018 Needle bar connecting link screw 1 B19 H9602019 Nut 1 B20 89602020 Needle bar connecting link 1 B21 H9602021 Needle bar connecting stud 1 B22 H9602022 Set Screw 2 B23 H9602023 Needle bar 1 B24 H9602024 Screw _ 1 B25 H9602025 Needle 1 B26 H9602026 Needle bar guide bracket 1 B27 H9602027 Needle bar guide bracket pin 1 B28 H9602028 Oil wick 1 B29 H9602029 Needle bar gui...

Page 18: ...C LOWER SHAFT MECHANISM ...

Page 19: ...ew 2 Cl7 H9603017 Nut 2 C18 H9603018 Inside shaft 1 Cl9 H9603019 Oil wich 1 C20 H9603020 Rivet 1 C21 H9603021 Lower shaft crank 1 C22 H9603022 Screw 1 C23 H9603023 Shuttle shaft slide block 1 C24 H9603024 Screw 1 C25 H9603025 Nut 1 C26 H9603026 Lower shaft 1 C27 H9603027 Collar 1 C28 H9603028 Set screw 2 C29 H9603029 Shuttle driver 1 C30 H9603030 Pin 1 C31 H9603031 Bobbin 1 C32 H9603032 Shuttle ho...

Page 20: ...C42 H9603042 Bushing 1 C43 H9603043 Set screw 1 C44 H9603044 Set screw 2 ...

Page 21: ...D FEEDING MECHANISM 62173 6 y 63 tr 66 67 41 75 10 ...

Page 22: ... Dl5 H9604015 Hook 1 Dl6 H9604016 Damping plate 1 017 H9604017 Screw 2 018 H9604018 Spacer 1 019 H9604019 Screw 1 020 H9604020 Stitch length adjusting bolt 1 021 H9604021 Stitch length limited plate 1 022 H9604022 Nut 023 H9604023 Metal ball D24 H9604024 Spring 1 025 H9604025 Plastic ball 1 026 H9604026 Nut 1 027 H9604027 Feed driving rock shaft crank 1 028 H9604028 Screw 2 029 H9604029 Screw 1 03...

Page 23: ... 057 H9604057 Screw 1 058 89604058 Hinge bar 2 059 89604059 Washer 2 060 89604060 Link 1 061 H9604061 Needle plate 1 062 89604062 Screw 2 063 H9604063 Fitting plate 1 064 H9604064 Screw 2 065 H9604065 Slide plate 1 066 H9604066 Spring 1 067 H9604067 Screw 2 068 89604068 Stitch length indicating plate 1 069 H9604069 Screw 2 070 H9604070 Bushing 1 071 H9604071 Set screw 1 072 H9604072 Bushing 1 073 ...

Page 24: ...E PRESSER FOOT MECHANISM 16 20 l 15 ta 17 21 0 8 14 1 13 3 9 1 ...

Page 25: ...H9605007 Thumb screw 1 E8 H9605008 Nut 1 E9 H9605009 Walking foot 1 ElO H9605010 Screw 1 Ell H960501 l Presser bar 1 El2 H9605012 Screw 1 E13 H9605013 Presser bar lifting shaft 1 El4 H9605014 Washer 1 E15 H9605015 Collar 1 El6 H9605016 Set screw 2 E17 H9605017 Bolt 1 E18 H9605018 Plastic ball 1 E19 H9605019 Presser bar guide bracket 1 E20 H9605020 Connecting rod 1 E21 H9605021 Screw 1 E22 H9605022...

Page 26: ...F PRESSER FPPT LIFTING SHAFT MECHANISM 7 3 25 14 ...

Page 27: ... lifting shaft crank 1 Fl 1 H9606011 Screw 1 Fl2 H9606012 Presser foot lifting connecting link 1 Fl3 H9606013 Screw 2 F14 H9606014 Retaining ring E type 4 F15 H9606015 Presser foot lifting lever 1 F16 H9606016 Screw 2 F17 H9606017 Presser foot lifting lever base 1 F18 H9606018 Screw 2 F19 H9606019 Roller Ii F20 H9606020 Bearing F21 H9606021 Screw F22 H9606022 Roller base plate 1 F23 H9606023 Screw...

Page 28: ...G NEEDLE BAR ROCK SHAFT MECHANISM 11 24 21 18 21 20 ...

Page 29: ...09 Adjusting crank 1 GIO H9607010 Screw 1 GI I H960701 l Needle bar rock shaft 1 Gl2 H9607012 Collar 2 Gl3 H9607013 Set screw 4 Gl4 H9607014 Needle bar rocking crank 1 G15 H9607015 Set screw 1 016 H9607016 Screw 1 017 H9607017 Needle bar rocking connecting link 1 I 018 H9607018 Screw 2 019 H9607019 Retaining ring E type 2 020 H9607020 Screw base 1 021 H9607021 Screw 3 022 H9607022 Bushing 1 023 H9...

Page 30: ...H KNEE LIFTER MECHANISM ...

Page 31: ... H9608003 Knee lifter lever base 1 H4 H9608004 Screw 2 H5 H9608005 Screw 1 H6 H9608006 Knee lifter rod 1 H7 H9608007 Screw 2 H8 H9608008 Coil spring 1 H9 H9608009 Screw 1 HlO H9608010 Screw 1 Hl 1 H9608011 Washer 1 H12 H9608012 Knee lifter lever connecting plate 2 H13 H9608013 Screw 1 H14 H9608014 Screw 1 ...

Page 32: ...I BOBBIN WINDER MECHANSIM 14 ...

Page 33: ...wheel 1 113 H9609013 Friction rubber band 1 114 H9609014 Bobbin winder lever 1 115 H9609015 Screw 1 116 H9609016 Winding length limited plate 1 117 H9609017 Screw 1 118 H9609018 Washer 1 119 H9609019 Pin 1 120 H9609020 Set screw 1 121 H9609021 Set screw 2 122 H9609022 Spring 1 123 H9609023 Bobbin winder cam 1 124 H9609024 Driving Wheel 1 125 H9609025 Set screw 2 126 H9609026 Screw 3 127 H9609027 S...

Page 34: ...J ACCESSORIES ...

Page 35: ... key 1 113 H9610013 Screw driver size L 1 114 H9610014 Scrwe driver size M 1 115 H9610015 Scrwe driver size S 1 116 H9610016 Spanner 1 117 H9610017 Spanner 1 118 H9610018 Bobbin 4 119 H9610019 Needle 4 120 H9610020 Hook 1 J21 H9610021 Hook 1 122 H9610022 Chain 1 J23 H9610023 Thread stand assy 1 124 H9610024 Oiler 1 125 H9610025 Vinyl cover 1 J26 H9610026 Oil pan 1 127 H9610027 Nail 6 J28 H9610028 ...

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