Husqvarna 6440 - User Manual

Detailed explanation of how a stitch is formed using the needle and shuttle.

Explanation of how upper thread tension is set using thread tension discs.

Requirements and actions for stitch plate and presser foot.

Requirements and actions for feed teeth and shuttle cover.

Requirements and actions for shuttle hook and driver.

Setting needle stop-right and front-to-rear positions.

Critical adjustment for needle-to-hook clearance.

Steps for timing the shuttle for correct loop formation.

Wiring diagrams for flatbed and early model machines.