Tronair 02-7918C9100 – 12-Ton Axle Jack w/Spacers

The four-stage ram design allows the Tronair 02-7918C9100 axle jack to achieve a higher lifting range while maintaining a compact closed height. This makes it easier to position the jack beneath the landing gear of low-clearance aircraft before lifting operations begin. The staged-cylinder design also helps provide stable, controlled extension during aircraft maintenance procedures.

A low closed height helps maintenance technicians position the axle jack under aircraft with limited ground clearance. The Tronair 02-7918C9100 features a minimum closed height of 3.8”, improving accessibility during tire, brake, and landing gear service operations. This can help reduce setup time and minimize the need for additional positioning equipment. Low-profile aircraft jacks are especially valuable for servicing business jets and other aircraft with compact landing gear.

The included 3/4” spacer block allows technicians to increase both the closed and extended height of the axle jack when additional reach is required. This added flexibility helps maintenance crews better match varying aircraft landing gear heights and servicing conditions. Proper placement of spacer blocks helps maintain safe lifting procedures. Using the correct spacer configuration can help improve jack positioning and lifting efficiency.

The high-low manual pump system helps technicians raise the jack more efficiently during aircraft maintenance operations. High-flow operation allows for quicker ram advancement with minimal resistance, while low-flow operation provides greater lifting force and control near the load point. This combination helps improve both speed and precision during aircraft lifting procedures. The manually operated design also eliminates dependence on external power sources, making the jack useful in remote or mobile maintenance environments.

Buna-N seals are widely used in aviation hydraulic equipment due to their compatibility with petroleum-based hydraulic fluids, such as MIL-PRF-5606. These seals help resist wear, fluid leakage, and deterioration during repeated lifting cycles. Proper seal performance is critical for maintaining hydraulic pressure and safe jack operation. Tronair also offers replacement cylinder seal kits and pump seal kits to support long-term maintenance and serviceability.

The included carrying case helps protect the axle jack during transportation and storage between maintenance operations. This can reduce exposure to dirt, debris, and accidental damage that may affect hydraulic components or sealing surfaces. The case also improves portability for field maintenance crews and mobile aircraft service teams. Properly storing the aircraft jack can help extend equipment life and maintain operational readiness.

Tronair recommends operating the axle jack only on a hard, level surface and ensuring aircraft tires are properly chocked before lifting begins. The manual also instructs users to open the reservoir vent screw before operation and to avoid placing their hands between the aircraft and the jack pad. Proper operator training is strongly encouraged to support safe aircraft lifting procedures. Following approved jacking procedures helps reduce the risk of instability or equipment misuse during maintenance operations.

Routine hydraulic maintenance helps preserve lifting performance, prevent contamination, and reduce the likelihood of fluid leaks. Tronair recommends checking hydraulic fluid levels before use and replacing worn seals or backup rings during service procedures. The maintenance schedule also calls for annual load testing and periodic inspections for corrosion, cracks, and excessive wear. Preventive maintenance helps extend the service life of the aircraft axle jack and supports safer operation.

The axle jack uses a controlled hydraulic release valve system that allows technicians to slowly lower the aircraft after servicing is complete. Slightly opening the pump release valve allows a gradual, controlled descent. This controlled lowering process helps minimize sudden load shifts that could damage aircraft components or create unsafe maintenance conditions. Smooth lowering performance is especially important during landing gear and wheel service operations.

The jack is purpose-built for aircraft landing gear maintenance and is designed to meet aviation industry operational requirements. Its steel construction, CE marking, hydraulic compatibility with MIL-PRF-5606 fluid, and serviceable replacement components help support long-term use in professional maintenance settings. The compact design and portable carrying case also make the unit practical for both hangar and mobile aircraft maintenance operations. These features help aviation technicians perform lifting tasks more safely and efficiently.