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JUKI MF-7900-E11 Instruction Manual

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MF-7900-E11
INSTRUCTION MANUAL
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Summary of Contents for JUKI MF-7900-E11

  • Page 1 MF-7900-E11 INSTRUCTION MANUAL...

  • Page 2: Table Of Contents

    CONTENTS 1. SPECIFICATIONS ........................1 2. ADJUSTMENT PROCEDURE OF ENGAGEMENT AMOUNT OF KNIVES ....... 1 3. ADJUSTMENT PROCEDURE OF THE KNIFE PRESSURE ............2 4. ADJUSTMENT PROCEDURE OF KNIFE CUTTING POSITION ..........2 5. ADJUSTING THE ENGAGEMENT ANGLE OF THE KNIFE ............3 6.

  • Page 3: Specifications

    1. SPECIFICATIONS Model MF-7900-E11 Class name Right-hand fabric undertrimmer for pre-closed elastic attaching with tension roller Pre-closed waist elastic attaching of men's brief, trunks, etc. Application (Waist elastic width up to 40 mm) Max. 5,000 sti/min (provided with PL12 or PL13)(at the time of intermittent operation) Sewing speed Speed of stitch at the delivery.

  • Page 4: Adjustment Procedure Of The Knife Pressure

    3. ADJUSTMENT PROCEDURE OF THE KNIFE PRESSURE WARNING : To protect against possible personal injury due to abrupt start of the machine, be sure to start the follow- ing work after turning the power off and ascertaining that the motor is at rest. Make the engagement pressure of moving knife and fixed knife as low as possible within the range of smooth cutting of fabric.

  • Page 5: Adjusting The Engagement Angle Of The Knife

    5. ADJUSTING THE ENGAGEMENT ANGLE OF THE KNIFE WARNING : To protect against possible personal injury due to abrupt start of the machine, be sure to start the follow- ing work after turning the power off and ascertaining that the motor is at rest. 1）...

  • Page 6: Replacement Procedure Of Moving Knife And Fixed Knife

    6. REPLACEMENT PROCEDURE OF MOVING KNIFE AND FIXED KNIFE WARNING : To protect against possible personal injury due to abrupt start of the machine, be sure to start the follow- ing work after turning the power off and ascertaining that the motor is at rest. Remove setscrew ❸...

  • Page 7: Adjustment Procedure Of Front-Up Amount Of The Presser Foot

    8. ADJUSTMENT PROCEDURE OF FRONT-UP AMOUNT OF THE PRESSER FOOT WARNING : To protect against possible personal injury due to abrupt start of the machine, be sure to start the follow- ing work after turning the power off and ascertaining that the motor is at rest. When sewing a thick rubber sheet or the like together, fab- ric can be smoothly fed by raising the front of presser foot ❶...

  • Page 8: Installing The Accessories (Tape Guide Base, Tention Roller And Suction Pipe) Supplied With The Machine

    10. INSTALLING THE ACCESSORIES (TAPE GUIDE BASE, TENTION ROLLER AND SUCTION PIPE) SUPPLIED WITH THE MACHINE WARNING : To protect against possible personal injury due to abrupt start of the machine, be sure to start the follow- ing work after turning the power off and ascertaining that the motor is at rest. (1) Installing the guide roller 1) Adjust presser guide asm.
  • Page 9 (4) Installing the rear roller 1) Fix rear roller plate base ❶ with three wood screws ❷ . ❻ ❸ ❹ ❺ For the installing position of the rear roller ❷ plate base, refer to the drawing of the table. 2) Install rear roller asm.

  • Page 10: Adjusting Procedure Of The Position Of The Tension Roller

    11. ADJUSTING PROCEDURE OF THE POSITION OF THE TENSION ROLLER WARNING : To protect against possible personal injury due to abrupt start of the machine, be sure to start the follow- ing work after turning the power off and ascertaining that the motor is at rest. (1) Adjusting the lateral position Adjust so that the right-hand end of the meets...
  • Page 11 (3) Adjusting the longitudinal position 1) Adjusting the lateral position ❶ Loosen three screws ❶ , adjust the bottom roller so that the elastic band is put straight, and tighten three screws ❶ . ❸ 2) Adjusting the vertical position Loosen clamp lever ❷...

  • Page 12: Adjusting Procedure Of The Position Of The Tape Guide Base

    12. ADJUSTING PROCEDURE OF THE POSITION OF THE TAPE GUIDE BASE WARNING : To protect against possible personal injury due to abrupt start of the machine, be sure to start the follow- ing work after turning the power off and ascertaining that the motor is at rest. (1) Adjusting the position of the guide roller 1) Adjusting the vertical position ❼...
  • Page 13 (2) Adjusting the elastic guide 1) Adjusting the lateral position Loosen screw ❶ , adjust presser guide ❷ to the right- ❶ hand side of the elastic band, and tighten screw ❶ . ❸ ❷ 2) Adjusting the angle and length Loosen screw ❸...
  • Page 14 (3) Adjusting the elastic band presser plate 1) Adjusting the lateral position Loosen screw ❶ and screw ❷ , and adjust presser bar ❺ so that the clearance between cloth presser ❸ and knife ❹ is 0.5 mm. Then tighten screw ❶ and screw ❷ . ❻...
  • Page 15 3) Adjusting the position of lever ❷ Loosen screw ❶ , and adjust so that the clearance ❷ ❸ between lever ❷ and the top surface of presser ❸ is 3 mm. Then tighten screw ❶ . ❶ ❸ 4) Position of the stopper ❷ Loosen screw ❶...

  • Page 16: How To Use The Knife Cancelling Mechanism

    13. HOW TO USE THE KNIFE CANCELLING MECHANISM WARNING : To protect against possible personal injury due to abrupt start of the machine, be sure to start the follow- ing work after turning the power off and ascertaining that the motor is at rest. 1) Depress lever ❶...

  • Page 17: Drawing Of Table

    14. DRAWING OF TABLE 70003387 MF-7900-E11/E22/E23 For the direct-driven machine head – 15 –...
  • Page 18 70003388 MF-7900-E11/E22/E23 For V belt – 16 –...

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