Use the machine manual as the maintenance schedule. Sewing frequency can tell you when to inspect for lint, but it cannot override the manufacturer’s oiling or servicing instructions.
Before each project
Check the needle, threading, correct bobbin and clean working surface. Stop for unusual noise, resistance, overheating or damage rather than continuing to a calendar deadline.
Cleaning and servicing
Switch off and unplug before cleaning as instructed. Remove only user-serviceable covers and parts. Brush accessible lint according to the manual; do not force compressed air into the mechanism or use household cleaners on internal parts. Reassemble correctly before sewing a test scrap.
Some machines require specific user oiling; others prohibit it or reserve lubrication for service. Never add oil because a generic weekly checklist says to. Follow the named oil and application points only where the manual permits them.
Keep a simple log of cleaning, needle changes, recurring symptoms and professional service. The sewing-machine cleaning guide and oil versus thread wax explain the boundaries.