Malabar 12-Ton Axle Jack – 642S

The Malabar 642S aircraft axle jack is designed to be filled with MIL-H-5606 hydraulic fluid or an approved equivalent. Using the specified fluid ensures proper lubrication, corrosion protection, and seal compatibility. Maintaining the correct hydraulic fluid type is critical for safe lifting performance and long service life. Always verify fluid condition during routine inspections.

The Model 642S is built to withstand rugged shop and ramp conditions. Features such as hard-chrome-plated cylinder and plunger bores, and corrosion-resistant plated components, help protect against wear and environmental exposure. The Skydrol-resistant safety yellow paint adds an additional layer of durability. This construction makes it well-suited for both hangar and line maintenance operations.

Yes. The 642S axle jack is factory proof-load tested at 150% of its rated capacity. This ensures structural integrity and hydraulic reliability before the jack is placed into service. Proof testing provides additional confidence for aircraft maintenance technicians performing landing gear servicing or tire changes. It also supports compliance with established maintenance safety protocols.

The Malabar 642S includes a safety pop-off valve set above rated capacity to help protect against overpressurization. The unit is rated for 12 tons (10.9 metric tons) and has a safety valve set above that threshold. This feature helps safeguard both equipment and aircraft during lifting operations. Proper training and adherence to rated capacity remain essential.

The 642S is shipped in a fully enclosed shipping container to protect it during transit. When not in use, it should be stored in a clean, dry environment to prevent contamination and corrosion. Keeping the air vent properly secured and maintaining clean hydraulic fluid further extends service life. Proper storage protects seals and hydraulic components from premature wear.

At its rated capacity, the Malabar 642S operates at approximately 6,162 PSIG. This pressure enables controlled lifting of aircraft landing gear assemblies during tire changes and brake maintenance. Maintaining system integrity and monitoring for leaks ensures consistent performance. Regular inspections help confirm pressure stability over time.

The 642S is used on a wide range of regional and business aircraft, including ATR 42/72, Dash 7 and Dash 8, Falcon series aircraft, and other turboprop and jet aircraft. Its compact design and lifting range make it suitable for nose and main landing gear applications across multiple fleets. This versatility makes it a valuable asset for FBOs, MROs, and corporate flight departments.

Routine inspection of seals, proper fluid level checks, and keeping the air vent clean are essential for maintaining hydraulic performance. Operators should also periodically inspect chrome-plated surfaces for damage and verify the smooth operation of the extension screw. Preventive maintenance reduces downtime and protects the jack’s lifting accuracy. Following the manufacturer's service guidance ensures safe operation.

The manual hand pump assembly provides controlled, gradual lifting without external power. This allows precise positioning when servicing aircraft wheels or brakes. The 24” hand pump handle offers sufficient leverage while remaining compact for ramp use. Manual operation also simplifies deployment in remote or power-limited environments.

The Malabar 642S axle jack is backed by a one-year warranty. This coverage supports repair or replacement for manufacturing or material defects within the warranty period. Warranty protection reflects Malabar’s commitment to quality and product support. For long-term reliability, operators should use approved fluids and follow recommended maintenance procedures.