4920015531951 - Tronair 18-4208-0010 Towable 4-Bottle Nitrogen Cart with Booster, Manifold, & Regulators

The Tronair 18-4208-0010 is a towable nitrogen service cart designed to charge and service aircraft systems requiring high-pressure nitrogen. It supplies nitrogen for tire inflation, strut servicing, and charging hydraulic accumulators. The unit includes an onboard booster, four-bottle manifold, and precision regulators for reliable and consistent delivery.

Yes, the Tronair 18-4208-0010 nitrogen cart is CE marked. This certification ensures that the equipment complies with European safety, health, and environmental protection requirements, making it suitable for use in international aviation operations where CE compliance is required.

Each nitrogen bottle must be securely connected to the manifold using high-pressure hoses. Before connecting, verify that all shutoff valves are closed and inspect the hoses for any damage or cross-threading. It’s also advised to rotate bottle usage to maximize efficiency by drawing from lower-pressure bottles first.

To charge an aircraft’s high-pressure system, connect the nitrogen service line to the aircraft port and open the valves slowly to prevent pressure surges. Use the onboard booster to elevate nitrogen pressure up to 4,000 PSIG, monitoring gauges throughout the process. Always open and close valves gradually to maintain safety and prevent damage to aircraft systems.

No. The Tronair nitrogen cart is designed exclusively for use with nitrogen. Using oxygen or other gases creates serious safety risks and can contaminate internal components. Always ensure only pure, dry nitrogen is used in the system.

The unit should be stored in a clean, dry, and well-ventilated area with all valve caps in place and hoses disconnected. Proper storage minimizes the risk of contamination and ensures the nitrogen system remains clean for future use. Keep the cart protected from excessive heat, dust, and moisture to extend its service life.

Routine maintenance includes greasing wheel bearings, inspecting hoses, fittings, and valves for leaks or damage, and replacing worn parts as needed. Annual servicing of the air cycling valve seal kits is recommended to maintain booster efficiency. For carts used heavily or in harsh environments, schedule booster pump inspection and recalibration as part of preventive maintenance.

The nitrogen booster uses compressed air to amplify pressure from the nitrogen supply bottles. It allows the operator to deliver nitrogen up to 4,000 PSIG for aircraft systems that require high pressure. The booster is designed to cycle automatically as pressure drops, maintaining a steady flow without manual adjustment.

This cart accommodates standard high-pressure nitrogen cylinders that meet aviation industry specifications, typically rated for 2,000 to 2,600 PSIG. Cylinders must be secured properly in the cart’s cradle using the provided straps and brackets. Always confirm cylinder certifications and hydrostatic test dates before installation to ensure compliance.

The cart features dual-stage regulators and precision gauges, allowing technicians to independently control both inlet and outlet pressures. This ensures safe, accurate pressure control for aircraft tire, strut, or accumulator servicing. Gauges should be calibrated periodically to maintain accuracy in high-pressure applications.

Operators should always wear proper protective equipment, including eye and hand protection, and avoid standing directly in front of pressurized fittings. Ensure all connections are tight before introducing pressure, and open valves slowly to prevent sudden surges. Never exceed rated pressures or operate the cart near open flames or electrical sparks.

The nitrogen cart is equipped with a towbar and pneumatic tires for easy transportation across hangar floors or ramp surfaces. Use a suitable towing vehicle and maintain a moderate speed when moving the unit. Always verify that cylinders are properly secured and that all hoses are stowed before transport.

The cart is designed for use in hangars and on ramps in typical aviation service environments. It performs reliably across a broad temperature range, but operation in extremely cold or humid conditions may require additional moisture control in the air supply. Keeping the unit sheltered when not in use helps prevent corrosion and extend service life.

A properly functioning booster will cycle smoothly and evenly, maintaining consistent output pressure as nitrogen is delivered. If cycling slows, stalls, or becomes erratic, check for low inlet pressure, air leaks, or contamination in the air drive system. Routine inspection of seals and air filters helps maintain consistent performance.

Immediately close all valves, depressurize the system, and inspect fittings and hose connections for signs of wear, cracking, or looseness. Replace any damaged components before repressurizing the system. Persistent leaks should be reported for service, as they may indicate internal seal wear in the booster or manifold.

Pressure gauges and regulators should be verified for calibration at least once per year, or more frequently in high-usage environments. Inspections ensure the cart delivers accurate nitrogen pressure during critical maintenance tasks. Maintaining calibration documentation also supports compliance with aviation maintenance standards and internal QA audits.

Genuine Tronair replacement parts and service kits are available directly through PJi. We offer OEM-certified components and expert support for maintaining aircraft nitrogen systems. Contact PJi’s aviation specialists for parts assistance or technical guidance.