Daily Pre-Operation Checklist
Before starting, check power supply stability and gas pressure — nitrogen at 0.8-1.2MPa and oxygen at 0.5-0.8MPa. Verify that the cooling system is functioning properly with water temperature maintained at 20-25°C to prevent laser damage. Inspect guide rails and transmission components for foreign objects or insufficient lubrication. Examine the laser head and nozzle to ensure no collision deformation or blockage. Clean lenses using dust-free cotton swabs with high-purity alcohol to maintain beam quality.
Weekly Maintenance Plan
Clean the cutting head and worktable thoroughly, removing metal residues that could scratch materials. Check the air compressor and filters, draining accumulated water from the storage tank to prevent moisture from entering the laser head. Apply specialized lubricating grease to guide rails and lead screws to ensure smooth motion.
Monthly Maintenance Tasks
Replace cooling water to prevent scale buildup in the pipeline — distilled water or specialized coolant is recommended. Check optical path alignment using a red light positioner to ensure precise laser focusing. Test laser power output with a power meter and adjust if necessary to maintain cutting quality.
Quarterly Deep Maintenance
Replace desiccant in the air circuit to prevent moisture from corroding lenses. Conduct a comprehensive electrical system inspection, checking for wire aging and poor connections. Clean the laser and electrical cabinet cooling fans to maintain proper heat dissipation.
Common Maintenance Mistakes to Avoid
Do not assume lenses that look clean do not need cleaning — microscopic dust can scatter laser beams and reduce precision. Never use ordinary engine oil on guide rails — only high-viscosity specialized grease should be used as regular oil attracts dust. Coolant water must be replaced, not just topped up, as scale accumulation reduces cooling efficiency and triggers overheating alarms. Excessive air pressure can interfere with slag removal and increase burr formation.
