Maintenance and repairs log — Juki MO-654DE (two units)

Repair, maintenance and installation history for the Juki MO-654DE (two units). Routine cleaning, oiling and operating instructions remain on the machine page.

Dated reports describe what was known at the time. Check the actual machine before use; a historical report does not establish its present condition. Outstanding checks are collected in Open questions.

This is a shared log for the two comparable MO-654DE units. Their usual white/black thread is a day-to-day distinction, not a permanent maintenance identifier. Identify the actual unit by an inventory label or serial number when adding an entry. The older missing-guide report does not identify it reliably.

10 October 2026 — Both units sent away for service

Both Juki overlockers and the CoverPro were reported away for service. No return announcement was found when #textilrummet was reviewed on 13 October 2026.

Still to verify: return dates, work completed and current condition of each unit, including upper-looper guides and cutting performance. The main machine page retains the availability notice.

7 February 2025 — Upper-looper thread guide missing on one unit

A discussion documented a missing upper-looper thread guide on one unit. The guide is around the moving rod; the exact parts book identifies it as A2521-513-0A0, reference 55 on printed p. 8.

Guide present, circled in yellow

Guide missing from the same area

Upper-looper thread guide present; 7 February 2025

Upper-looper thread guide present; 7 February 2025


Upper-looper thread guide missing; 7 February 2025

Upper-looper thread guide missing; 7 February 2025


These photos identify the component. Their lint and thread routes are not a correct threading example to copy, and they do not establish a current fault. Inspect each unit with power disconnected. Report a missing or damaged guide and have that unit repaired; do not transfer parts between the machines.

Still to verify: which unit was affected and whether the guide was replaced.

30 December 2024 — Professional-service recommendation

A service report relayed the repair shop's recommendation for annual professional service under the room's heavy use. This is maintenance-planning advice; agree and record the actual schedule and completed work with the room maintainers.

Adding a maintenance entry

Record the date, symptom, work performed, parts used and result. Include useful photos and a source or contact for follow-up. Distinguish completed repairs from proposed work and confirm the result with an appropriate test.

History consolidated on 13 October 2026.