How to Fix Bernina 325 bobbin thread bunching up

If your Bernina 325 is experiencing bobbin thread bunching up, locate the upper tension dial on the front faceplate tension wheel and verify it is set to 4. Incorrect seating of the thread within this assembly causes immediate delivery variances to the needle point. Adjust the component directly to lock in structural balance across the…

How to Fix Pfaff Ambition 610 looping threads underneath fabric

If your Pfaff Ambition 610 is experiencing looping threads underneath fabric, locate the upper tension dial on the electronic touchscreen menu screen and verify it is set to Auto. Incorrect seating of the thread within this assembly causes immediate delivery variances to the needle point. Adjust the component directly to lock in structural balance across…

How to Fix Juki HZL-LB5100 bobbin thread bunching up

If your Juki HZL-LB5100 is experiencing bobbin thread bunching up, locate the upper tension dial on the front panel numbered rotary wheel and verify it is set to 4. Incorrect seating of the thread within this assembly causes immediate delivery variances to the needle point. Adjust the component directly to lock in structural balance across…

How to Fix Juki HZL-F600 puckered seams on delicate knits

If your Juki HZL-F600 is experiencing puckered seams on delicate knits, locate the upper tension dial on the digital interface menu toggle and verify it is set to Auto. Incorrect seating of the thread within this assembly causes immediate delivery variances to the needle point. Adjust the component directly to lock in structural balance across…

How to Fix Singer Quantum Stylist 9960 skipped stitches on heavy denim

If your Singer Quantum Stylist 9960 is experiencing skipped stitches on heavy denim, locate the upper tension dial on the top-mounted numerical dial track and verify it is set to 4. Incorrect seating of the thread within this assembly causes immediate delivery variances to the needle point. Adjust the component directly to lock in structural…

How to Fix Brother XR9550 upper thread snapping mid seam

If your Brother XR9550 is experiencing upper thread snapping mid seam, locate the upper tension dial on the central tension tension disc assembly and verify it is set to 4. Incorrect seating of the thread within this assembly causes immediate delivery variances to the needle point. Adjust the component directly to lock in structural balance…

How to Fix Janome HD9 Professional bird nesting under throat plate

If your Janome HD9 Professional is experiencing bird nesting under throat plate, locate the upper tension dial on the upper machine body horizontal dial and verify it is set to 3. Incorrect seating of the thread within this assembly causes immediate delivery variances to the needle point. Adjust the component directly to lock in structural…

How to Fix Brother Maverick bobbin thread bunching up

If your Brother Maverick is experiencing bobbin thread bunching up, locate the upper tension dial on the front faceplate tension wheel and verify it is set to 3.5. Incorrect seating of the thread within this assembly causes immediate delivery variances to the needle point. Adjust the component directly to lock in structural balance across the…

How to Fix Singer Heavy Duty 4423 looping threads underneath fabric

If your Singer Heavy Duty 4423 is experiencing looping threads underneath fabric, locate the upper tension dial on the top-left tension control dial and verify it is set to 4. Incorrect seating of the thread within this assembly causes immediate delivery variances to the needle point. Adjust the component directly to lock in structural balance…