Global 3900AUT Series Parts Book And Instruction Manual
  1. Manuals
  2. Brands
  3. Global Manuals
  4. Sewing Machine
  5. 3900AUT series
  6. Parts book and instruction manual

Global 3900AUT Series Parts Book And Instruction Manual

High-speed lockstitch sewing machine with motor buil t in head
Hide thumbs Also See for 3900AUT Series:
Table of Contents

Advertisement

Quick Links

Download this manual
INSTRUCTION MANUAL BOOK & PARTS BOOK
3900AUT/3900LH-AUT Ser is
HIGH-SPEED LOCKSTITCH SEWING
MACHINE WITH MOTOR BUil T IN HEAD
GLOBALSEW.COM

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the 3900AUT Series and is the answer not in the manual?

Questions and answers

Subscribe to Our Youtube Channel

Related Manuals for Global 3900AUT Series

Summary of Contents for Global 3900AUT Series

  • Page 1 INSTRUCTION MANUAL BOOK & PARTS BOOK 3900AUT/3900LH-AUT Ser is HIGH-SPEED LOCKSTITCH SEWING MACHINE WITH MOTOR BUil T IN HEAD GLOBALSEW.COM...
  • Page 2 TO ENSURE SAFE USE OF YOUR SEWING MACHINE For the sewing machine, automatic machine and ancillary devices (hereinafter collectively referred to as "machine"), it is inevitable to conduct sewing work near moving parts of the machine. This means that there is always a possibility of unintentionally coming in contact with the moving parts.
  • Page 3 GLOBAL assumes no responsibility for damages or personal injury or death resulting from the use of the machine for any application other than the intended one.
  • Page 4 ( I ) Table and table stand 1. Be sure to use GLOBAL genuine table and table stand in order to prevent accident that can result in personal injury or death. If it is inevitable to use a table and table stand which are not GLOBAL genuine ones, select the table and table stand which are able to support the machine weight and reaction force during operation.
  • Page 5 7. If the machine cannot be normally operated after repair or adjustment, immediately stop operation and contact GLOBAL or the distributor in your area for repair in order to prevent accident that can result in ,er sonal injury or death.
  • Page 6 FOR SAFE OPERATION 1. Don't put your hand under the needle when you turn "on" the power switch or operate the machine. 2. Don't put your hand into the thread take-up cover while the machine is running. 3. Turn OFF the power switch before tilting the machine head or removing the belt cover and the V belt.

  • Page 7: Table Of Contents

    CONTENTS INSTRUCTION MANUAL 1. SPEC IFICA TION S -- - -- - -- - -- - -- - -- P1 2. INSTA LL ATION -- - -- - -- - -- - -- - -- - P1 3.MISCELLANEOUS COVER COMPONENTS------------ P2 4.ADJUSTING THE HELGHT OF THE KNEE LIFT - --------- P2 5.

  • Page 8: Specifications

    1. SPECIFICATIONS 3900AUT 3900LH-AUT Application Medium-weight materials, General fabrics, light-weight heavy-weight materials and medium-weiaht materials Sewing speed Max. 4,000 sti/min Max. 3,500 sti/min Max. 4mm Max. 6 mm Stitch length Needle DB x5 #20 to #23 (134 #125 to #160) DB x5 #9 to #18 (134 #65to#110) Presser foot lift (by knee lifter) 10 mm (Standard) 13 mm (Max.)

  • Page 9: Adjusting The Helght Of The Knee Lift

    3. INSTALLING THE BELT COVER AND THE BOBBIN WINDER WARNING: To protect against possible personal injury due to abrupt start of the machine, be sure to start the following work after turning the power off and ascertaining that the motor is at rest. 4.

  • Page 10: Installing The Thread

    5. INSTALLING THE THREAD STAND 6. LUBRICATION WARNING: To protect against possible personal injury due to abrupt start of the machine, be sure to start the following work after turning the power off and ascertaining that the motor is at rest. (1) Information on lubrication 1) Fill oil pan O with New Defrix Oil No.
  • Page 11 Ｌ Ｌ...

  • Page 12: Attaching The Needle

    8. ATTACHING THE NEEDLE WARNING: To protect against possible personal injury due to abrupt start of the machine, be sure to start the following work after turning the power off and ascertaining that the motor is at rest. ✓ 9. SETTING THE BOBBIN INTO THE BOBBIN CASE 1) Pass the thread through thread slit G, and pull the thread in direction 4).

  • Page 13: Presser Foot Pressure

    11. PRESSER FOOT PRESSURE 29- 32 mr 12. HAND LIFTER 13. ADJUSTING THE HEIGHT OF THE PRESSER BAR WARNING: To protect against possible personal injury due to abrupt start of the machine, be sure to start the following work after turning the power off and ascertaining that the motor is at rest. 1) Loosen setscrew and adjust the presser bar height or the angle of the presser foot.

  • Page 14: Threading The Machine Head

    14. THREADING THE MACHINE HEAD WARNING: To protect against possible personal injury due to abrupt start of the machine, be sure to start the following work after turning the power off and ascertaining that the motor is at rest.

  • Page 15: Thread Take-Up Spring

    15. THREAD TENSION (1) Adjusting the needle thread tension 1) As you turn thread tension nut 8 clockwise (in direction 0), the needle thread tension will be in­ creased. 2) As you turn nut 8 counterclockwise (in direction @)), the needle thread tension will be decreased. 3) As you turn thread tenson No.
  • Page 16 Ｌ...
  • Page 17 Ｌ Ｌ...

  • Page 18: Pedal Pressugre And Pedal Stroke

    22. PEDAL PRESSURE AND PEDAL STROKE WARNING To protect against possible personal injury due to abrupt start of the machine, be sure to start the following work after turning the power off and ascertaining that the motor is at rest. 1) Adjustng the pressure reured to depress the front part of the pedal This pressur can be changed by changing the mounting position of pedaling pressure adjust spring...

  • Page 19: Wiper

    25. WIPER WARNING To protect against possible personal injury due to abrupt start of the machine, be sure to start the following work after turning the power off and ascertaining that the motor is at rest. (1) Positioning the wiper Adjust the position of the wiper according to the thickness of the material sewn.
  • Page 20 1.Machine frame & miscel lanous cover components -13-...

  • Page 21: Machine Frame&Miscellaneous Cover Components

    & 1.Machine frame miscellaneous cover components Ref. Ref. Part NO. Description Part NO. Description G02-1-01 Face plate G02-1-36 Thread tension disk presser G02-1-02 Face plate agsket G02-1-37 Thread tension disk G02-1-03 Screw 1/8x44 L=4 G02-1-38 Tension post G02-1-04 Atm oil shifld asm. G02-1-39 Take-up spring G02-1-05 Rubber plug G02-1-40 Tension post...

  • Page 22: Main Shaft&Thread-Up Lever Components

    2.Main shaft &thread take-up lever components 2.Main shaft &thread take-up lever components Ref. Ref. Part NO. Description Part NO. Description G02-2-01 G02-2-25 Screw 15/64x28 L=10.5 Main shaft front bushing asm. G02-2-02 Thread take-up crank shaft G02-2-26 Oil adjusting collar G02-2-03 G02-2-27 Roller felt Bushing intermediate...
  • Page 23 3.Needle bak� upright shaft &hook driving shaft components @--- 1 5 1--g & >---14 I� ,� I� r- 13 �------; r------, � I 117 � >--W L� I� L - - ----� -' �12 r ---------- , Q�; 19----, 1 - 181 �-----�...

  • Page 24: Hand Lifter Components

    4.Presser foot components ";, 2 --11 / / / / _,, .,., - .,, / -� ,� �, it:' '�: Ii> ___ _ 321: i' - ��-: � �� "--- r(;, '� �-----t-� '------� 30---1 ,m,: 3 1 � 1 �...
  • Page 25 5.Feed mechanism componebts Ref. Part NO. Ref. Part NO. Description Description G02-5-01 Feed adjust rod G02-5-35 Feed bar asm G02-5-02 Feed regulator pin G02-5-36 Adjusting link spring guide G02-5-03 Screw 9/64x40 L=6 G02-5-37 Screw 11 /64x40 L=5 G02-5-04 Feed regulator G02-5-38 Feed spring hood Feed rocker shaft...

  • Page 26: Thread Trimmer Components

    6.Thread trimmer components Ref. Part Description Part Description I NO. Thread shear cam G02-6�26-3 G02--6-0 Limit potential shalt (26-3} G02--6--03 Screw ())2-6-27 Roll shaftasm. G02--6--04 Secant knife G02-6-28 G02-6-29 G02-6-05 Sere Screw G02-6-06 Low er thread finger 002-6-30 -rnreaCI snearshalt G02--6-08 screw 002-6-31...

  • Page 27: Wiper Components

    7.Automatic reverse feed components 8. Wiper components � i � 29 � i� ---- 7 .Automatic reverse feed components Ref. Ref. Part NO. Part NO. Description Description G02-7-01 Reverse feed switch asm. G02-7-16 E-ring 9 G02-7-02 Reverse feed switch cover G02-7-17 Connecting arm asm.

  • Page 28: Il Lublication Components

    9.0il lublication components 10. Oil reservoir components 9.Oil lublication components Ref. Ref. Part NO. Description Part NO. Description G02-9-01 G02-9-16 Screw 0=3 L=10 Oil sight window G02-9-02 G02-9-17 Rubber ring Lubricating oil pump cover G02-9-03 G02-9-18 Main shaft oil Oil pump impeller cover G02-9-04 G02-9-19 Screw 3/16x28 L=6...
  • Page 29 11.Driver components v cj H � � . . �B • 0 [J J ________________ , -------- ________ r ________________ � L-----------------� _________________________________ 11.Driver copmponents Ref. Ref. Part NO . Description Part NO . Qt y Description Qt y G02-11-06 G02-11-01 Control asm.

  • Page 30: Thread Stand Components

    12. Thread stand components 13.Accessories 12. Thread stand components Ref. Ref. Part NO. Description Part NO. Description G02-12-01 G02-12-11 Thread stand asm. Spool rest rod joint G02-12-02 G02-12-12 Spool pin asm. Screw M5 L=14 G02-12-03 G02-12-13 Spool retainer NutM5 G02-12-04 G02-12-14 Spool pin Spool rest rod ,lower...
  • Page 32 14.Presser foot lifting set mechanism(Option parts 2 ) 14.Presser foot lifting set mechanism(Option parts) 3900AUT 3900LH-AUT Ref.No Part.No Name of parts G02-16-01 Lifting lever link Nylon flange nut G02-16-02 G02-16-03 Flange nuts M8 Rubber plunger G02-16-04 Presser foot liting G02-16-05 Screw SM3/16x28 L=9 G02-1-08 Rubber plug...
  • Page 35 OLOBAL GLOBALSEW.COM...

This manual is also suitable for:

3900lh-aut series

Table of Contents