Tronair 02A0544C0110 – 5-Ton Tripod Jack, Air Pump

The single-stage hydraulic configuration delivers smooth, controlled lifting performance while reducing system complexity compared to multi-stage jacks. Fewer moving sections can help minimize wear points and simplify long-term maintenance. This design also contributes to reliable support when lifting aircraft such as the Fairchild/Dornier Metro Merlin III, Metro Merlin IV, and Dornier 228 series. The Tronair manual lists a 22” hydraulic extension combined with a 10” mechanical extension for flexible lift height adjustment.

The built-in velocity fuse is designed to prevent sudden ram descent if a hydraulic line failure occurs during lifting operations. This feature automatically locks the ram position until the hydraulic issue is repaired and the system is reset. By helping prevent uncontrolled lowering, the velocity fuse adds another important layer of aircraft maintenance safety. Tronair specifically highlights this feature as part of the jack’s core safety system.

Simultaneous lifting helps maintain proper aircraft balance and reduces uneven stress on the airframe structure. Tronair instructs operators to raise and lower all jacks together so the aircraft remains level throughout maintenance procedures. This is especially important for twin-engine turboprop aircraft with multiple fuselage and wing jacking points. Proper coordinated lifting procedures can improve overall safety and jack stability during inspections or repairs.

The 10" mechanical extension allows technicians to position the jack close to the aircraft jacking point before hydraulic lifting begins. This helps reduce the amount of hydraulic stroke required and can speed up setup time during maintenance operations. The extension also improves adaptability when working with aircraft that have different ground clearances or servicing configurations. Proper pre-positioning can contribute to smoother and more controlled lifting procedures.

The translucent hydraulic reservoir allows technicians to quickly monitor hydraulic fluid levels without disassembling components or removing the tank. Easier fluid inspection can help reduce maintenance time and support proper hydraulic system performance. The manual recommends maintaining fluid levels approximately 1.5” below the vent opening using MIL-PRF-5606 hydraulic fluid. Consistent fluid monitoring helps protect seals, pumps, and lifting reliability.

The factory-installed pneumatic pump enables rapid ram extension with shop air, reducing manual effort during aircraft lifting operations. This can help technicians work more efficiently during repetitive maintenance procedures or high-volume hangar operations. The hydraulic schematic in the manual shows how the air-driven hydraulic pump works alongside the manual hand pump for operational flexibility. Manual pumping capability also remains available when compressed air is not accessible.

Tronair recommends regular hydraulic fluid checks, caster lubrication, annual load testing, and routine inspection of seals and hydraulic components. The manual also advises fully raising the ram and applying a compatible water-repellent lubricant during extended storage. Serviceable seal kits and replacement parts are available to simplify preventive maintenance and repairs. Following these maintenance guidelines can help maximize jack reliability and service life.

The tripod base design helps distribute weight evenly while maintaining stability on approved level surfaces. This wide stance can help reduce unwanted movement during aircraft maintenance and inspection procedures. Tronair also recommends using tail or nose stands when applicable for additional aircraft stability. Combined with heavy-duty wheels for mobility, the tripod structure balances maneuverability with dependable lifting support.

The ram protection ring and locking pin assembly help secure the mechanical extension during lifting operations. Tronair provides detailed instructions and illustrations that show the correct pin placement to prevent deformation, improper loading, or premature component failure. The manual warns that incorrect pin positioning could compromise lifting safety and potentially lead to serious injury. This system adds another layer of structural protection during aircraft jacking procedures.

CE marking confirms that the jack meets applicable European machinery safety requirements and recognized operational standards. The included Declaration of Conformity references compliance with the European Machinery Directive 2006/42/EC and EN ISO 12100-1 standards. For international MRO facilities and aviation operators, CE compliance can help support workplace safety requirements and equipment approval processes. This makes the jack well-suited for global aviation maintenance environments.