When calibrating your aircraft nitrogen and oxygen there several factors that must be considered. By taking these factors into consideration, you can ensure accuracy and reliability in your equipment. Your calibration lab should be following these steps in order to properly care for you equipment. Below we have compiled a checklist that your calibration lab should be following in their routine calibration plan.
Maintain 45 to 50 psi tire pressure
Grease wheel bearings quarterly
Gauges on unit should be inspected and calibrated annually to maintain accuracy
Manifold inlet and outlet hoses should be inspected weekly for cracking or kinking; replace as necessary
Keep unit clean and away from contaminants. Visually inspect for any system leaks or damages
Check towing eye for bending, excessive wear, and/or deformity
Ensure towing eye mounting bolts are not loose or missing. Tighten to 25 ft-lbs or replace as required
If your unit is booster equipped, different procedures apply. All maintenance performed on high-pressure boosters should be conducted in accordance with all applicable codes governing the handling operation, installation, and troubleshooting. Maintenance should only be conducted by qualified persons. Follow these steps to ensure accuracy:
Air cycling valve in the booster pump should be lubricated twice per year or sooner if driven with nitrogen/oxygen, or used heavily
Gauges should be inspected and calibrated annually to ensure accuracy
Inlet shop air filter element should be inspected and calibrated annually or when a pressure drop of 15 psi is reached
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e2b calibration is an ISO/IEC 17025 ACCREDITED calibration and repair laboratory providing a full scope of NIST TRACEABLE calibration, test, and measurement services for AEROSPACE equipment. Services are provided in a climate-controlled, state-of-the-art laboratory with ON-SITE SERVICES, and local pick-up and delivery available on request. A cloud-based document and ASSET MANAGEMENT PORTAL provides customers with instant access to certificates of calibration, asset information, and reports.