Tronair 02A7850C0100 – 60-Ton Tripod Jack, Air Pump

The Tronair 02A7850C0100 60-ton tripod jack is designed for heavy-duty aircraft maintenance operations involving large commercial and transport-category aircraft. It is commonly used during landing gear service, tire and brake replacement, structural inspections, and other maintenance procedures that require stable aircraft lifting support. Its high lifting capacity makes it suitable for aging fleets such as Boeing 707, 727, MD-80, and Convair aircraft, where dependable ground support equipment is critical. The jack is specifically engineered for fuselage and wing jacking applications in professional aviation maintenance environments.

The 120,000-lb capacity allows maintenance crews to safely support larger aircraft while maintaining stability during heavy maintenance procedures. High-capacity aircraft tripod jacks help operators service a wider range of aircraft without requiring multiple specialized lifting systems. This can improve hangar flexibility and reduce equipment changeover time between maintenance events. For MRO facilities handling commercial or cargo aircraft, the additional lifting margin can also help support demanding operational requirements.

The factory-installed pneumatic pump helps speed up initial jack extension and reduces the physical effort required during setup. Faster extension allows technicians to position the jack under the aircraft more efficiently before final hydraulic lifting begins. Integrated air-assist systems are especially beneficial when working with heavy aircraft that require multiple synchronized jacks during maintenance procedures. According to the operation manual, the hydraulic pump operates with a recommended air pressure range of 90 to 100 PSI.

Aircraft manufacturers and aviation maintenance standards emphasize raising and lowering all jacks simultaneously to help maintain aircraft balance and structural stability. Uneven lifting can place unnecessary stress on airframes, landing gear components, or jacking points during maintenance operations. The Tronair operation manual specifically instructs technicians to raise and lower jacks together while using appropriate nose or tail stands for additional support. Proper lifting coordination is especially important when working on large transport-category aircraft.

The ram locknut acts as a mechanical safety device that helps prevent unintended lowering of the aircraft in the event of hydraulic pressure loss or line failure. Tronair’s manual states that the locknut should remain within one inch of the extending ram during lifting operations to maximize protection. This additional mechanical safeguard helps improve technician safety while aircraft are elevated for maintenance. Proper use of the ram locknut is considered a critical part of safe aircraft jacking procedures.

The jack is built with heavy-duty structural components, industrial casters, and a durable powder-coat finish designed for repeated use in commercial aviation maintenance facilities. Its rugged tripod construction helps provide stable lifting performance even under high-capacity loads. The operation manual also notes that the unit is shipped fully assembled and tested before delivery, helping maintenance teams place the jack into service quickly. These features make it well-suited for high-utilization MRO and airline maintenance operations.

Routine maintenance helps ensure the hydraulic system, seals, fittings, and lifting components continue operating safely and efficiently over time. Tronair recommends regular fluid checks, caster lubrication, annual cleaning, and yearly load testing at 105% to 110% of rated capacity. Preventive inspections can help identify wear, fluid leaks, or seal degradation before they affect lifting performance. Consistent maintenance practices are essential for extending the service life of aircraft ground support equipment.

The 02A7850C0100 offers a maximum lifting height of 128”, allowing technicians to accommodate aircraft with high fuselage or wing jacking points. This extended range improves versatility when servicing larger commercial aircraft and transport platforms. The manual also specifies a 24” mechanical extension and a 44” hydraulic extension to provide additional lifting adaptability. Greater height capability can help maintenance crews position aircraft more effectively for inspections and repairs.

The pressure relief valve helps protect the hydraulic system from overload conditions during lifting operations. By limiting excessive hydraulic pressure, the valve helps reduce the risk of component damage and supports safer aircraft lifting procedures. Tronair also specifies that the relief valve is not field serviceable and must be replaced as a complete unit if necessary. This design helps maintain consistent hydraulic protection and operational reliability.

MIL-PRF-5606 hydraulic fluid is widely used in aviation maintenance equipment because of its reliable low-temperature performance and compatibility with aircraft hydraulic systems. The fluid supports smooth hydraulic operation while helping protect seals, pumps, and internal jack components from premature wear. Tronair specifically recommends this aviation-grade hydraulic fluid throughout the service manual for proper operation and maintenance. Using approved hydraulic fluid also helps maintain equipment performance in varying environmental conditions.