Global 303 AUT Operation Manual
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Global 303 AUT Operation Manual

High-speed lock titch sewing machine
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. GLGBAL
303 AUT
OPERATION MANUAL

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Summary of Contents for Global 303 AUT

  • Page 1 . GLGBAL 303 AUT OPERATION MANUAL...

  • Page 2: Table Of Contents

    CONTENTS 1 . BEFORE OPERATION • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • 1 2.

  • Page 3: Before Operation

    l .In order to resist rust before machine head packing, all parts are smeared with thick rust-resistant oil. After packing, perhaps in a relatively long storage and transportation period, the oil will harden and absorb dusts. Therefore, it's necessary to clean the oil and dusts with neat soft cloth and gasoline.

  • Page 4: Ins T Allation

    1) The oil pan should rest on the four comers of the machine table groove. 2) Fix two rubber seats <D on side A ( operator's side) using nails as illustrated above. Fix two cushion seats on side B (hinged side) using nails@. Then place oil pan© on the fixed seats. (Fig.
  • Page 5 l.lnformation on lubrication(Fig.5) 1 )Fill oil pan <D with sewing machine oil ( 10 white oil) up to HIGH mark A. 2)When the oil level lowers below LOW mark B , refill the oil pan with the specified oil. 3)When you operate the machine after lubrication , you will see splashing oil throu g h oil sight window @ if the lubrication is adequate.

  • Page 6: Attaching The Needle

    I .Notice before adjustment: l )The unexpended machine should ruri without material for around 3 minutes.(or suitable running now and then). 2)Plug in the oil amount paper only when the machine is running. �)Make sure the oil height in the oil plate ranges between HIGH and LOW. 4)The confinning time of the oil amount is 5 seconds (by manual time-keeping).

  • Page 7: Thre Ading The Machine Head

    Fig.12 1 )Turn stitch length dial • in the direction of the arrow, and align the desired number to marker dot O on the machine arm. 2)The dial calibration is in millimeters. 3)When you want to decrease the stitch length, turn stitch length dial •...

  • Page 8: Inst Alling The Belt Cover And The Bobbin W Inder

    1 )The standard height of the presser foot lifted using the knee lifter is 10mm. 2)You can adjust the presser foot lift up to 13 mm using knee lifter adjust screw• . (The max. lift should be 9 mm for the A type.) 3)When you have adjusted the presser foot lift to over 10 mm, be sure that the bottom end of needle bar •...

  • Page 9: Threa D Tension

    1 ) T o stop the machine with its presser foot up, tum hand lifter in direction 2)The presser foot will go up about 5.5 mm and stop. 3) T he presser foot will go back to its original position when hand lifter is turned down in direction •...

  • Page 10: Presser Foot Pressure

    I )Loosen nut • . As you tum presser spring regulator 8 clockwise (in direction 6' the presser foot pressure will be increased. 2)As you tum the presser spring regulator counterclockwise (in direction the pressure will be decreased. 3)After adjustment, tighten nut • 4 )For general fabrics, the standard height of the presser spring regulator is 29 to 32mm (5kg).

  • Page 11: Needle-To-Hook Relationship

    22.NEEDLE-TO -HOOK RELATIONSHIP(Fig. 26) 1.Adj u st the timing between the needle and the hook as follows: 1 )Tum the handwheel to bring the needle bar down to the lowest point of its stroke, and loosen setscrew <D * Adjusting the needle bar height 2 )Align marker line A on needle bar @ with the bottom end of needle bar lower bushing Q), then tighten setscrew * Adjusting position@of the hook...

  • Page 12: 5 .Adjusting The Thread Take-Up Stroke

    l)When sewing heavy-weight materials. move thread guide Oto the left <in direction to increase the length of thread pulled out by the thread take-up. 2)When sewing light-weight materials, move thread guide O to the right (in direction C, ) to decrease the length of thread pulled out by the thread take-up.

  • Page 13: Adjustm Ent Of The Pedal

    l)Move pedal to the right or left as illustrated by the arrows so that motor control lever and connecting rod straightened. l)The pedal tilt can be freely adjusted by changing the length of the connecting rod 2)Loosen adjust screw , and adjust the length of connecting rod l)The moment switch lever 8 is pressed, the machine performs reverse feed...
  • Page 14 Adjust the position of the wiper according to the thickness of the material sewn. The adjustment procedure is as follows: 1 )Tum the hand wheel in the normal direction of rotation to align white marker dot 8 on the handwheel with red marker dot 9 on the machine arm.
  • Page 15 GL0BAL 303 AUT PARTS BOOK - 1f}J\��; � - - . - : _ _ _...
  • Page 16 Ref.No. GR581-8 Face plate arm GR420-8 Decorative plate GX300-8 Screw 3/16-28 L=9 GR583-8 Rubber plug GR582-8 Gasket GR604-8 Frame thread guide, left OS313-8 Screw 11/ 64-40 L=6 GR603-8 Frame thread guide, right OS313-8 Screw 11/ 64-40 L=6 GR584-8 Rubber plug GR585-8 Rubber plug GR1004-8...
  • Page 17 p � � - 2-...
  • Page 18 Ref.No. Part No. Description OP162-8 Hand wheel OR1007-8 Reflector plate OR1010-8 Magnet OR1009-8 Magnet Support 0S518-8 Screw 11/64-40 L=12 00359-8 Washer OS304-8 Screw 15/64-28 L=15 ORlOll/3-8 Dynamo Stator 0S517-8 Screw 02229-8 Main shaft OR588-8 Oil seal 00256-8 Main shaft bushing, rear asm. GR589-8 Thrust collar asm.
  • Page 19 3 2 3 3 'I / . \ \ � � - 4-...
  • Page 20 Ref.No. Part No. Description Amt. OH213-8 Needle bar crank rod 00265-8 Needle bearing OR598-8 Needle bar commection asm. GS311-8 Screw 9/ 64-40 L=6 GU152-8 Slide block 00266-8 Needle bar bushing, upper OR599-8 GS312-8 Screw 1/8-44 L=4.5 0S310-8 First tension post OR1014-8 Thread tension guide GR1015-8...
  • Page 21 � 11 ----e...
  • Page 23 � � � � �38 !' � 1 1 � � 11 �...
  • Page 24 GS328-8 Screw 11/64-40 L=9.5 GZ233-8 Hook driving shaft OS329-8 Oil seal screw asm GR633-8 Oil wick GR634-8 Thrust collar GS330-8 Screw 11/ 64-40 L=3.5 GS316-8 Screw 15/64-28 L=4.7 00270-8 Bushing rear GR636-8 Thrust collar asm. GS331-8 Screw 11/ 64-40 L=4.8 GC154-8 .
  • Page 25 1 9 -j t}-- 1 9 - 10-...
  • Page 26 6. Feed mechanism components Ref.No. Pant No Description Amt. OX204·8 Walking foot pin 0S333-8 Screw 9/64-40 L=6 OR639-8 Walking foot link OR640-S Connecting link OX205-8 Walking foot pin 0S333-8 Screw 9/64-40 L=6 OX207-8 Adgusting link fulcrum shaft 0S316-8 Screw 15/64-28 L=7 OX207-8 Adgusting link fulcrum shaft 0S316-8...
  • Page 27 - 12 -...
  • Page 28 Part No. Ref.No. Description Amt. "GR1030-8 Reverse feed magnet asm. OS525-8 Screw 15/64-28 L=12 OX248-8 Plunger arm pin OR1028-8 Snap ring 00362-8 Rubber plunger 00363-8 Washer OR1027-8 Snap ring OH387-8 Reverse feed connecting link OR1031/3-8 Connecting arm asm. OR1028-8 snap ring OR625-8 Snap ring OR1029-8...
  • Page 29 Part No. Description Ref.No. Reverse feed control lever OR656-8 Screw 1/4-40 L=8 0S319-8 Screw 1/ 40-10 L=8 0S319-8 Reverse feed lever stopper 00361-8 Screw 3/16-28 L=18 0S521-8 Feed reverse arm asm. OH343/2-8 Feed reverse arm screw 0S346-8 Feed reverse spring OW204-8 Feed spring hook OR657-8...
  • Page 30 -15-...
  • Page 31 Part No. Description Amt. Ref.No. Screw 11/64-40 L=7 OS340-8 GSS22-8 Thread take-up screw Thread take-up picker asm. GRl0Sl/4-8 Screw 9 / 64-40 L=S OS333-8 Base plate asm. GR10S6/2-8 Screw 1S/ 64-28 L=9 Driving arm stopper asm. GR1054-8 Screw 11/ 64-40 L=7 OS336-8 GW237-8 Clutch spring...
  • Page 32 Hinge screw GR1040/10-8 Knife unit GR1045-8 Forked base for knife GS529-8 Hinge screw GR1049/2-8 Moving knife asm. GS528-8 Moving knife hinge screw GR1046-8 Counter knife ( 1 ) GS66 Screw 1/8-44 L=6 GR1047-8 Thread guide for knife ( 1 ) GS527-8 Screw 3/32-56 L=2.3 ( 1 )
  • Page 33 22 2 3 - 18 -...
  • Page 34 9. Wiper components Ref.No. Part No. Description Wiper base asm. GR1075/2-8 GS300-8 Screw 3/16-28 L=9 Power source swit�ch asm. GD136-8 GR1078-8 Wiper solenoid Screw M3 O.S L=6 GBS206-8 GBR215-8 Spring washer GR1074-8 Wiper rubber Wiper rubber GR1073-8 GX258-8 Wiper solenoid pin 00376-8 Wiper link collar GR1081-8...
  • Page 35 � 2 6 � 1/i> � - 20 -...
  • Page 36 10. Lubrication components Part No. Ref.No. Description Amt. GR659/20-8 Lubricating oil pump asm. GR660-8 Oil pump installini base GS348-8 Screw 15/64-28 L=9 ( 3 ) GR661-8 Washer GR662-8 Oil pump ( 1 ) GO276-8 Oil pump bushing GR663-8 Oil pump impeller GR664-8 Oil pump impeller cover GR665/2-8...
  • Page 37 -� • . _ _,,.�),- P.'- � . . � • • �� • _::} L _________ _J...
  • Page 38 11. Pressor foot components of oil plate knee lift Arnt Ref.No. Part No. Description GR680/20-8 Oil plate components GR681-8 Oil plate ( 1 ) GR682-8 Oil plate bed ( 1 ) ( 4 ) GR683-8 Machine head bed OS355-8 ( 2 ) Oil extraction hole screw GR684-8 ( 2 )
  • Page 39 16--Q...
  • Page 40 Ref.No. Description Arnt Part No; GR704-8 Bobbin winder seat GR705-8 Bobbin stand Bobbin wheel Bobbin wheel screw GS363-8 GZ239-8 Bobbin shaft GR706-8 Bobbin seat bar GX213-8 Pin of bobbin seat bar GR707-8 Bobbin stand bar GX213-8 Pin of bobbin stand bar GS364-8 Shaft screw of bobbin stand bar GX214-8...
  • Page 42 Ref.No. Part No. Description GR696/2-8 Components of machine head connecting hook GR697-8 Machine head connecting hook seat GBX142-8 Seat nail of m, a chine head connecting hook GK154-8 Front cover of .upper wheel GR698-8 Fixing bracket of front cover GK155/3-8 Back cover components of upper wheel GK156-8 Back cover·...
  • Page 43 - -:.- 14 A..--- . � /4 t. - ·,� � ..\---::, �•.:;..:; -� ..i.::s � � � � - \,, - l,__J �...

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