Juki DU-1281-7 Platform Sewing Machine User's Manual - English Edition
Summary
This comprehensive manual provides expert instructions for operating, adjusting, and maintaining the professional sewing machine. It covers crucial setup procedures, detailed adjustments for stitch length, thread tension, and feed timing, ensuring optimal performance across various materials. Furthermore, readers will find thorough troubleshooting guidelines to resolve common issues, like broken threads or skipped stitches, empowering both advanced users and technical staff to keep their equipment running seamlessly.
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DU-1281-7 INSTRUCTION MANUAL
Page Summary Contents For Juki DU-1281-7 Platform Sewing Machine User's Manual - English Edition
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DU-1281-7 INSTRUCTION MANUAL
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CONTENTS 1. SPECIFICATIONS .......................................................................................................... 2. PREPARATION BEFORE OPERATION .....................................
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1. SPECIFICATIONS Application Pouches, bags, shoes DP x 17 #16 - #23 (Standard #22) Needle system Max. 2,000 sti/min DB x 1 #20 - #23 Sewing speed Stitch length Max. 8 mm Thread #8 - #30 Hand lifter :...
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2. PREPARATION BEFORE OPERATION 2-1. Installing the knee lifter 1) Fully draw out knee lifter shafts ❷ toward you. Then, install it on the sewing machine. 2) Attach driving arm ❶ to respective shafts ...
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2-3. Lubrication WARNING : Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start of the sewing machine. 1) Fill the oil tank with oil up to line H ❶ 2) Carry ou...
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2-6. Adjusting the oil in the pump 1) In the standard state, bypass hole ❷ is fully closed with adjusting plate ❶ 2) The wider bypass hole ❷ is opened, the less the oil quantity becomes. 2-7. Installi...
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3. HOW TO ADJUST AND HOW TO USE THE SEWING MACHINE 3-1. Attaching the needle WARNING : Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start of the sewing machi...
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3-3. Adjusting the stitch length and reverse-feed stitching To change the stitch length, press push-lever ❶ and turn stitch dial ❷ [Reverse feed stitching] Push reverse feed lever ❸ down. The machine ...
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3-6. Presser foot pressure 1) Adjust the pressure of the presser foot according to the sewing product. 2) The pressure of the presser foot ❶ and that of the walking foot ❷ can be adjusted separately. ...
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3-9. Height of the feed dog WARNING : Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start of the sewing machine. Feed dog ❶ is factory-adjusted to jut out 1.0...
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3-12. Adjusting the waling foot and presser foot WARNING : Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start of the sewing machine. (1) Amount of the altern...
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3-13. Needle-to-hook relationship WARNING : Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start of the sewing machine. ❻0.02 to 0.07mm Upper marker line Lower...
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3-15. Relation between the counter knife and the tip of the thread trimmer blade (left) WARNING : Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start of the s...
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3-17. Adjusting the thread trimming cam WARNING : Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start of the sewing machine. Standard position of the thread t...
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3-19. Adjusting the counter knife pressure WARNING : Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start of the sewing machine. 1) Loosen locknut ❶ of knife p...
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4. TROUBLES IN SEWING AND CORRECTIVE MEASURES Trouble Cause Corrective measure 1. Thread breakage. Thread path, needle tip, hook blade tip Remove the scratches on the hook point (Thread is untwisted o...
Manual Details
| Brand | Juki |
|---|---|
| Pages | 16 |
| File Size | 2.12 MB |
| Published | May 24, 2026 |
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Frequently Asked Questions
What should I do if the bobbin does not spin smoothly?
Replace either the bobbin or the bobbin case.
How do I fix an issue where the needle thread cannot be pulled up when sewing heavy material?
Retard the feed timing and refer to '3-14. Feed timing' on page 10.
What causes last stitch skipping, and how is it resolved?
It can happen if the clearance between the needle and the hook is too large or if the thread trimming timing is incorrect; consult '3-13' and '3-17'.
Where should I check for a problematic solenoid or motor issue?
For solenoid/motor failure, ensure the motor operation needs to be electrically checked.