Tensile testing machines are highly sensitive precision metrology instruments. In industrial manufacturing and quality assurance, they are the definitive judges of material integrity. However, irregular or inadequate daily maintenance can directly lead to equipment accuracy degradation, failed metrological calibrations, and ultimately, invalid test data. To help our global partners safeguard their testing accuracy and ensure strict compliance with international metrology standards, we have compiled a standardized, actionable, and fully traceable maintenance protocol based on rigorous industry standards (including GB/T 16491-2022 and JJG 139-2014). Implementing these protocols will not only ensure your data remains unimpeachable but will also significantly extend the lifespan of your investment. I. Daily Maintenance: The Baseline for Compliance Must be performed before and after testing to ensure foundational accuracy. Complete Machine Cleanliness: Thoroughly clean the machine body, workbench, and fixture surfaces to remove any metal shards, polymer debris, or dust. Preventing foreign objects from entering the transmission gaps eliminates the risk of mechanical stuttering, abnormal wear, and operational deviation. Fixture and Grip Inspection: Routinely check the jaw tightening status, wear levels, and inspect for any micro-cracks. Promptly clear debris and tighten any loose screws to completely eradicate test failures caused by slipping or clamping loss. Power and Wiring Checks: Inspect the equipment wiring to ensure there is no aging, loosening, or damage. Always power down and disconnect the machine after testing is complete. Leaving the equipment in long-term standby can cause electronic component fatigue and induce critical sensor zero-drift. Software and Data Integrity: Promptly save original test data and stress-strain curves. Clear invalid system caches to guarantee stable software operation and ensure that every piece of data remains fully traceable for quality audits. II. Weekly Maintenance: Ensuring Mechanical Stability Designed to prevent gradual mechanical drift and structural degradation. Transmission System Lubrication: Carefully clean oil stains and impurities from the ball screws, guide rails, and sliding surfaces. Apply a uniform layer of compliant lubricating grease to guarantee the transmission system runs at a constant speed with zero stuttering or gap deviations. Leveling Calibration: Cross-reference the equipment's built-in spirit level to ensure the machine remains perfectly horizontal and stable. Long-term tilting leads to severe coaxiality deviation and data drift. Anti-Rust Protection: Apply industrial anti-rust treatments to all fixtures and metal connectors. If your laboratory operates in a humid climate, strengthening these protective measures is mandatory to prevent metal corrosion from compromising clamping precision and overall machine rigidity. III. Monthly Specialized Inspection: Core Accuracy Preservation Deep-dive evaluations to maintain metrological integrity. Comprehensive Transmission Audit: Perform a full operational check on the ball screws, guide rails, and sprockets. Ensure there are no abnormal noises, jitters, or excessive clearance gaps. Promptly replenish lubricating grease and re-tension any loose transmission components. Hydraulic System Care (For Hydraulic Models): Inspect the entire oil circuit for micro-leaks. Ensure the oil level is normal and the oil quality remains perfectly clean. Replacing degraded hydraulic oil and filters on schedule is critical to preventing pressure fluctuations that cause test force deviations. Preliminary Accuracy Verification: Utilize standard, routine test samples to conduct comparative re-testing. This helps identify hidden issues like force value drift or data jumping. If anomalies are detected, record them immediately and schedule a professional calibration. IV. Strict Environmental Compliance Requirements The non-negotiable prerequisites for accurate calibration. According to precision metrology usage specifications, tensile testing equipment must be housed in a dry, well-ventilated, dust-free, and non-corrosive indoor environment. Standard Operating Temperature: 10℃ – 35℃ Relative Humidity: 20% – 80% (strictly non-condensing) Allowing the laboratory environment to exceed these parameters will directly result in accuracy failure, internal circuit malfunctions, and accelerated metal corrosion. The True ROI of Standardized Maintenance By strictly executing this standardized daily maintenance protocol, laboratory managers can successfully eliminate over 80% of minor equipment faults. Consistent care stabilizes long-term metrological accuracy, guarantees smooth passage through periodic compliance audits, and ensures that your testing data remains effective and globally traceable. Ultimately, proactive maintenance is the most effective way to lower your enterprise's quality control operational costs.