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C Series Maintenance Guide

Regular maintenance keeps your Yumi C Series printer running at peak performance. Follow this schedule to prevent issues and extend the life of your machine.

Maintenance Schedule

Task Interval Difficulty
Clean Print Bed Every 7 days Easy
Clean Nozzle Every 14 days Easy
Lubricate X/Y Rails Every 30 days Easy
Grease Z Lead Screw Every 90 days Easy
Inspect Belts Every 3–4 weeks Medium
Check Wiring Every 180 days Medium
Fan Cleaning Every 30 days Easy

Automatic Reminders

Your SmartPad tracks maintenance intervals automatically. When a task is due:

  1. A popup appears on the KlipperScreen after boot
  2. A colored indicator shows the status:
    • Green = OK, not due yet
    • Orange = Due soon
    • Red = Overdue
  3. Tap "Guide" next to any task to scan a QR code with your phone for step-by-step instructions

Accessing Maintenance Panel

On your SmartPad: Menu > More > Maintenance

The panel shows:

  • Print time and extrusion counters
  • Per-YMS extrusion breakdown
  • Scheduled maintenance tasks with countdown
  • Alerts for overdue items

What You Need

  • Lubricant oil (for X/Y linear rails)
  • Lubricant grease (for Z lead screw)
  • IPA (isopropyl alcohol) and lint-free cloth
  • Needle or cold-pull filament for nozzle cleaning