Tronair 02-7924C0100 – 4-Ton Axle Jack

The Tronair 02-7924C0100 was engineered specifically around the lifting geometry and maintenance requirements of the HondaJet HA-420, helping ensure proper engagement at approved jacking points. Its compact footprint and low closed height make it especially useful for the HondaJet’s low ground clearance configuration. The included offset jack pad adapter also helps technicians achieve proper positioning during lifting operations. This aircraft-specific design can improve both maintenance efficiency and lifting stability.

The three-stage telescoping ram allows the axle jack to achieve significant lift capability while maintaining a very compact closed height. This design helps technicians position the jack more easily beneath low-clearance aircraft without sacrificing extension range during lifting. Multi-stage ram systems also promote smoother lifting progression and more controlled load distribution. For aircraft maintenance crews, that translates into improved access and versatility during wheel, brake, and landing gear servicing.

The offset jack pad adapter helps properly align the jack with the aircraft’s designated lifting point, particularly when access beneath the aircraft is limited. This improves lifting accuracy and helps reduce the risk of improper load placement during maintenance. Because the adapter slightly changes the load geometry, Tronair specifies a reduced lifting capacity when the adapter is installed. Proper use of the offset adapter is essential for maintaining stability and safe aircraft jacking procedures.

The two-speed hydraulic pump allows technicians to move quickly during low-load extension and then transition to higher-pressure lifting when the aircraft weight is engaged. The lower-pressure stage improves setup efficiency, while the high-pressure stage delivers the force needed for controlled aircraft lifting. This design helps reduce operator fatigue compared to single-speed systems. It also contributes to smoother lifting performance during routine aircraft maintenance operations.

With an overall length of just over 11” and a weight of approximately 32 lbs, this hydraulic axle jack is highly portable for line maintenance and hangar operations. Its compact dimensions make storage easier and allow technicians to maneuver the unit efficiently in tight working areas around the aircraft. Portable axle jacks are especially valuable for operators working in smaller maintenance facilities or performing mobile service work. The reduced size also simplifies transport between maintenance locations.

MIL-PRF-5606 hydraulic fluid is widely accepted throughout the aviation industry because it provides dependable viscosity and performance across a broad operating temperature range. The fluid is compatible with many aviation hydraulic seals and components, helping reduce wear inside the jack’s hydraulic system. Using standardized aviation hydraulic fluid also simplifies servicing and maintenance for operators managing multiple pieces of ground support equipment. Tronair specifically recommends this fluid for the 02-7924C0100 axle jack.

Tronair recommends performing routine 90-day maintenance inspections that include fully extending and retracting the ram to exercise the seals and prevent corrosion buildup inside the cylinder. Technicians should also inspect for hydraulic leaks, damaged seals, excessive wear, and fluid contamination. Annual load testing at 5% to 10% above rated capacity is also recommended to verify safe operation. Preventative maintenance helps maximize reliability and extend the operational lifespan of aircraft axle jacks.

The integrated pressure relief valve helps protect both the jack and the aircraft from overload conditions during lifting operations. If hydraulic pressure exceeds the designed limit, the valve automatically releases excess pressure to help prevent component damage or unsafe lifting conditions. This feature is especially important during aircraft maintenance procedures where precise load control is critical. Pressure relief systems are considered a core safety component on modern aircraft jacks.

The axle jack is intended for use on hard, level surfaces to minimize tipping hazards during aircraft lifting. Tronair also lists a recommended operating temperature range of -4°F to 122°F (-20°C to 50°C), allowing the jack to perform reliably in a variety of hangar and ramp environments. Operators should always open the reservoir vent screw before use and avoid exceeding the maximum hydraulic stroke. Following these guidelines helps maintain safe and consistent jack performance.

Yes. PJi provides replacement seal kits, hydraulic pump seal kits, replacement hand pump assemblies, and additional service parts for the Tronair 02-7924C0100 axle jack. The availability of OEM replacement components helps operators maintain the jack to factory standards and minimize downtime during repairs. Using genuine replacement parts is also important for maintaining warranty coverage and ensuring continued lifting performance.