Product Description
Best For
The B1513-771-000 clamp bracket is the OEM-spec work-clamp bracket for Juki LBH-781, LBH-771, and LBH-761 buttonhole machines, keeping the garment clamped precisely in position through the full buttonhole stitch cycle.
What It Does
- Precise clamp alignment matched to the LBH-781/771/761 series spec
- Holds the garment steady and correctly positioned for accurate buttonhole placement
- Direct OEM part-number replacement
Use Cases
Garment factories running Juki LBH buttonhole lines on shirts and jackets use this bracket as a maintenance spare to keep clamp alignment accurate and avoid off-center or skewed buttonholes.
Benefits
A worn or bent clamp bracket lets the garment shift slightly during the buttonhole cycle, which shows up as a skewed or off-position buttonhole — a visible defect that leads to rejects. Replacing the bracket restores the precise, repeatable clamp position the buttonhole operation depends on.
Machine Compatibility
| Machine Series | Compatible |
|---|---|
| Juki LBH-781 | Yes |
| Juki LBH-771 | Yes |
| Juki LBH-761 | Yes |
Specifications
| Spec | Detail |
|---|---|
| Part number | B1513-771-000 |
| Type | Work clamp bracket |
| Compatible machines | Juki LBH-781 / LBH-771 / LBH-761 |
How to Use
First, power down and unplug the buttonhole machine before accessing the clamp assembly. Next, remove the mounting screws holding the worn bracket and lift it out. Then, fit the B1513-771-000 into the same position and secure the mounting screws, checking the clamp closes evenly on both sides. Finally, run a test cycle on scrap fabric to confirm clamp alignment before returning to production.
FAQ
Buyer Intent
Q: What symptoms point to a worn clamp bracket rather than a threading or tension issue?
Buttonholes that come out skewed, off-center, or with uneven spacing — even though threading and tension are correct — usually point to the clamp bracket not holding the garment square during the stitch cycle.
Q: Is this an original Juki part?
This is a compatible replacement built to the B1513-771-000 part-number specification, not sourced from Juki directly — sold as a lower-cost factory maintenance spare.
Compatibility
Q: Will this fit LBH models outside the 781/771/761 range, like the LBH-1790?
No — it’s specified for the LBH-781/771/761 series only. Juki’s other buttonhole series use different clamp bracket dimensions, so confirm your exact model before ordering.
