1. Avoid the trap of comprehensive maintenance providers: prioritize choosing service providers that specialize in a single brand of machine tools vertically, to avoid misdiagnosis and incorrect repairs caused by comprehensive maintenance providers' unfamiliarity with proprietary systems;
2. Confirm the source of accessories and testing standards: require service providers to provide accessory testing reports, reject substitute parts without adaptation testing, and avoid abnormal noise after repair;
3. Sign a standardized service agreement: clarify response time, accuracy recovery standards, and after-sales warranty terms to avoid verbal promises that cannot be fulfilled;
4. Request for accuracy calibration certificate: After the repair is completed, a laser accuracy calibration report is required to ensure that the spindle accuracy meets production requirements.