JUKI MO-644DN/654DEN instruction manual

PDF page 1: Shared-manual identity; model-specific claims still require explicit MO-654DEN wording.

PDF page 2: Shared needle-area and presser-foot power-off requirement plus explicit unplugging for open-cover looper threading, lubrication and other stated servicing.

PDF page 12: Shared foot-release, pin-to-holder engagement and extra-lift safety; no generic fit family.

PDF page 16: Shared right/left needle types, orientation and JLx2 heavyweight condition.

PDF page 17: Shared preparation and threading order. The manual's separate safety page requires unplugging when covers are opened for looper threading.

PDF page 19: Explicit MO-654DEN lower-looper-device and breakage recovery procedure; excludes the page-20 MO-644DN-only method.

PDF page 23: Shared 4 mm/right-needle and 6 mm/left-needle three-thread configurations.

PDF page 29: Explicit MO-654DEN differential-feed table, visually verified cell mapping.

PDF page 30: Explicitly shared lightweight single-layer gathering setup.

PDF page 32: Shared cleaning and limited lubrication wording; exact oil points remain diagram-bound.

PDF page 34 · printed page 33: Retained shared MO-644DN/654DEN instruction manual, specification table. Exact accepted MO-654DEN only; retain left6mm/right4mm/rollhemming2mm as distinct configurations, not zigzag maximum or accessory clearance.

PDF page 6 · printed page 5: Retained exact source diagram labels upper/lower knives and loopers, width selection knob and MO-654DEN lower-looper threader. Read diagram with source safety; no replacement article, cross-model fit or standalone procedure.

PDF page 13 · printed page 12: Supplemental retained native control heading corroborates lower-knife position adjustment for cutting width. Power OFF and original diagrams control; this is not a replacement or adjustment instruction.