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Juki HZL35Z Mechanical Sewing Machine Questions & Answers
My juki hzl35z will not pick up the bobbin thread suddenly! Help!
Upper thread breaks
needle may be in backwards
Raise the needle bar to the highest point, then loosen the clamp screw to remove the old needle, place the new needle in the clamp with the flat side to the back of the machine
round needle--the groove in the needle should face away from the shaft.
Push the needle all the way up to the stop or as far as it will go, then tighten the needle clamp screw
upper tension may be to tight
the needle may be bent or damaged
thread may be hanging up in bobbin case--check area for loose threads or lint
When the needle goes down
It sounds like your problem is as simple as either a bent needle or a bobbin casing that is inserted improperly. First, change your needle being mindful of the type of fabric (and thread) you are using (e.g. Size 11 ballpoint for a light knit or a size 18 jeans needle for denim). Make sure that the bobbin casing is set in correctly, and that the bobbin goes in the correct way. (i.e. Counter-clockwise for a drop-in style bobbin). This should solve your issue. Happy sewing!
I have a JUKI HZL - DX7. There is a problem with the automatic thread cutter.
If your JUKI HZL-DX7 sewing machine's automatic thread cutter is leaving behind a short piece of thread in the mechanism after each cut, there might be a few potential causes for this issue. Here are some steps you can take to troubleshoot and address the problem:
- Thread Tension: Check the tension settings for both the upper and lower threads. Improper tension can cause thread to be left behind in the thread cutter mechanism. Make sure the tension is balanced and appropriate for the type of fabric you're sewing.
- Thread Quality: Poor-quality or thick threads can sometimes get caught in the thread cutter mechanism. Ensure you're using good-quality threads that are suitable for your sewing project.
- Thread Path and Thread Guides: Make sure the upper and lower threads are properly threaded through the machine's threading path and guides. Improper threading can lead to thread buildup in the cutter area.
- Thread Cutter Mechanism Cleaning: The thread cutter mechanism might have accumulated lint, debris, or bits of thread over time. Gently clean the thread cutter area with a small brush, compressed air, or a vacuum cleaner to remove any buildup.
- Blade Inspection: Check the blade of the thread cutter for any nicks, dullness, or damage. A damaged blade might not cut the thread cleanly, leaving behind remnants.
- Thread Cutter Mechanism Lubrication: Some sewing machines have small moving parts in the thread cutter area that benefit from occasional lubrication. Consult your sewing machine's manual to see if lubrication is recommended and use a sewing machine-safe lubricant if needed.
- Machine Maintenance: Regular maintenance of your sewing machine, including cleaning and oiling as recommended in the manual, can help prevent issues with the thread cutter mechanism.
- Consult the Manual: Refer to your JUKI HZL-DX7 sewing machine's manual for specific instructions on troubleshooting and maintaining the automatic thread cutter.
- Professional Service: If the issue persists after trying these steps, it might be best to seek the assistance of a professional sewing machine technician. They can diagnose and repair any mechanical issues with the thread cutter mechanism.
Remember that working with sewing machines involves mechanical parts and electrical components, so it's important to follow safety guidelines and, if needed, seek professional assistance to avoid causing further damage or harm.
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