JUKI MF-7900 Instruction Manual

[Page 1] JUKI MF-7900 Series

INSTRUCTION MANUAL M)'/UT59 ...

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i CONTENTS I. SPECIFICATIONS .............................................................................................................1 II. AT THE BEGINNING ............................................................................................

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– 1 – I. SPECIFICATIONS Model name High-speed, cylinder-bed coverstitch machine Model MF-7900 series Stitch type ISO standard 406, 407, 602, and 605 Example of application For preventing thread from raveling at the end of hemming or other process...

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– 2 – ❶ ❷ III. INSTALLING THE ACCESSORIES 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...

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– 3 – 2) Loosen screw B in cover ❷ with a screwdriver to open the cover. 3) Connect 14P code ❸ coming from the machine head to con- nector ❻ (CN36). 4) Insert 3P cord ❾ coming from the machine head into connec- tor 󱀓 ...

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– 4 – ❹ ❸❷❶ Type of machine head Model name F799 MF-7900/UT59 For the operation panel other than CP-18, refer to the Instruction Manual for the operation panel to be used for the setting procedure of the machine head. 1) Call function ...

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– 5 – IV. AIR PIPING DRAWING 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. In addition, cut t...

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– 6 – * For the adjustment procedure other than the above, refer to the Instruction Manual for MF-7900. ❶ ❷ Thread the machine head according to the following threading illustrations. WARNING : To protect against possible personal injury due ...

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– 7 – VI. ADJUSTING THE LOOPER THREAD TRIMMER MECHANISM 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 ...

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– 8 – VII. INSTALLING THE SS LEVER UNIT 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. Ins...

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– 9 – VIII. DRAWING OF THE TABLE DRAWING OF TABLE (SEMI-SUBMERGED TYPE) H22/23-UT59 DIRECT-DRIVE TYPE (Drill a hole at the time of set-up.) Installing position of drawer stopper (on the reverse side) Drilled hole 17 (Drill a hole at the time o...

[Page 12] JUKI MF-7900 Series

– 10 – IX. SETTING THE UPPER STOP POSITION OF THE NEEDLE BAR Ⓑ ❻ ❺❹❸ Ⓐ ❸ ❻ ❺❹ ❻ ❺❹❸ Ⓑ 4) In this state, give the pulley of the machine head another turn by hand to align marker line ❶ on the hand pulley with r...

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– 11 – When the needle moves in the descending direction 6) Remaining in the needle-bar upper stop position setting mode, turn the hand pulley of the machine head by hand to lower the needle until the position where its tip is aligned with...

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– 12 – 1) Turn ON the power with switch ❼ held pressed. (The item which has been changed during the previous work is displayed.) * If the screen display does not change, re-carry out operation described in step 1). (Caution) Be sur...