Singer HD6380

• Follow the complete source power-connection diagram and actual machine rating.

Unplug the power cord when the machine is not in use.

• Follow the source illustrations; keep fingers clear of the needle and cutter.

Bring the take-up lever highest with the handwheel toward you, raise the foot and remove work rearward; guide threads under and behind the foot into the faceplate-side cutter and pull down.

• Household description does not establish industrial duty, global electrical region or a verified external standards certification.

The instruction manual describes a household sewing machine.

• No maximum speed or pedal-free operation is established. Consult a qualified electrician if connection is uncertain.

The foot-control pedal regulates sewing speed.

• No inferred stitch count or promise that all patterns admit all adjustments.

The pattern selector turns in either direction; S1/S2 settings on the length dial access the other illustrated patterns, with width adjusted by its separate dial.

• The source specifies middle for twin-needle stitching but supplies no verified twin-needle spacing, sizing or foot-clearance envelope.

The three-position control uses middle for normal work and left or right for edge stitching or parallel topstitching.

• This is a stitch-width statement, not third-party foot or needle-plate clearance evidence.

The manual states a maximum zigzag width of 6 mm.

• No automatic tie-off or programmable reverse feature is inferred.

Hold the reverse lever for a few securing stitches at the beginning and end of a seam; releasing it restores forward sewing.

• Switch off before changing the foot. Follow the complete selector and length/width diagrams; stop the machine when its cycle is complete, without assuming it stops itself.

The manual describes one-step buttonholes: practice on the intended fabric and stabilizer, attach the buttonhole foot, align marks, insert the button in its plate and lower the buttonhole lever gently backward.

• Unplug for cleaning. The stated 0.3 W/DC 9 V applies to the LED lamp, not the global machine supply voltage or a user-replaceable mains bulb.

Keep machine and foot-control ventilation free of lint, dust and loose cloth. If its LED is damaged, stop using the machine and send it to Singer or a service agent for repair or replacement.

• Power-off and wall-plug disconnection are distinct prerequisites; do not restore power before safe reassembly.

Switch off before threading, needle or bobbin adjustments and foot changes. Unplug immediately after use and before cleaning, cover removal, lubrication or user servicing.

• This abbreviates the full illustrated procedure; down-right/up-left tension channels and right-to-left take-up threading remain source-local.

Switch off; raise the needle to its highest point and then slightly descend it by counterclockwise handwheel rotation. Raise the foot to release tension, follow the illustrated guide and take-up path, and thread the eye front to back.

• Follow the full lever/hook diagram; no twin-needle or needle-size envelope is established.

With power off and needle highest, lower the threader lever, pass the guide and hook from bottom to top, release the lever and draw the thread through the eye.

• There is no single setting for all sewing; source estimates are not guarantees.

Start from upper tension 4; higher dial numbers increase tension and lower numbers reduce it. Match the setting to the stitch, fabric and thread; zigzag and decorative work generally use less tension than straight stitching.

• Dial values are not promoted to physical millimetre length maxima.

Zigzag becomes denser as length approaches 0, with normal zigzag usually at 3 or below. Straight-stitch guidance uses longer stitches for heavier fabrics/thicker needle or thread and shorter stitches for lighter/finer combinations.

• Switch off for foot setup; follow the complete cord routing and finishing illustrations rather than using this summary alone.

For stretch-fabric buttonholes, the manual hooks heavy thread or cord under the buttonhole foot so the sewn legs overcast it.

• Switch off for needle-area setup and follow the control diagram; no automatic feed restoration or darning-plate substitution.

Keep feed dogs up for ordinary sewing; drop them using the illustrated control for freehand embroidery, button sewing and darning.

• Conditional diagnostic list, not an exhaustive diagnosis. Switch off before needle-area checks; use the complete corresponding source procedure.

The manual lists incorrect threading, tight upper tension, thread too thick for the needle, incorrect needle insertion, thread wound around the spool-holder pin and needle damage as possible causes of upper-thread breakage.

• Conditional checks only; turn power off before correcting needle-area threading.

For loose stitches, check upper/case threading, the needle-fabric-thread combination and tension. Do not pull fabric while sewing; let the feed dogs draw it under the foot.