Malabar 8844A Landing Gear Strut Service Unit w/Hose Reel - 884400A-2

Malabar 8844A Landing Gear Strut Service Unit | Nitrogen and Hydraulic Aircraft Strut Servicing

The Malabar 8844A Landing Gear Strut Service Unit is a precision-engineered, mobile hydraulic and nitrogen servicing cart designed for efficient aircraft strut maintenance. Built for both narrow- and wide-body aircraft, this unit combines hydraulic fluid and nitrogen management in a single, mobile platform to perform strut inflation, deflation, and fluid replenishment safely and efficiently.

Equipped with a dual-chamber reservoir and an innovative fluid recovery system, the Malabar 8844A eliminates hydraulic fluid waste and contamination—critical for maintaining aircraft landing gear reliability and extending component life.

How It’s Used in Aircraft Maintenance

During regular aircraft maintenance, landing gear struts must be serviced with hydraulic fluid (MIL-PRF-5606 or equivalent) and nitrogen to maintain correct extension, damping, and load absorption. The Malabar 8844A enables technicians to:

• Deflate, drain, and refill strut assemblies with clean hydraulic fluid.

• Purge and recharge nitrogen chambers to specified pressures (up to 3,000 psig).

• Recover, separate, and reuse hydraulic fluid, reducing waste and environmental impact.

This integrated unit allows maintenance personnel to perform precise strut servicing directly on the aircraft, ensuring optimal landing gear performance and compliance with manufacturer standards.

Why It’s Used

Proper strut servicing is vital for aircraft safety and performance. The Malabar 8844A:

• Maintains correct shock absorption and ride height.

• Prevents premature seal wear and corrosion.

• Eliminates aeration and contaminants from the hydraulic system.

• Ensures accurate fluid level and nitrogen charge for consistent operation under all load and temperature conditions.

The unit’s vacuum degassing system and precision control valves give technicians complete command over the service process, making it indispensable for line maintenance, heavy checks, and MRO operations.

Key Benefits

• Dual Chamber System: Separates clean and waste fluids for efficient, contamination-free servicing.

• Vacuum Degassing: Removes trapped air and nitrogen from hydraulic fluid before servicing.

• 3000 psig Nitrogen Capability: Safely delivers regulated high-pressure nitrogen for strut inflation.

• High Flow Delivery: Up to 2 GPM at 1500 psig ensures fast and precise hydraulic operations.

• Portable and Rugged: Heavy-duty frame and foam-filled wheels make it easy to maneuver across hangar floors.

• Environmentally Responsible: Integrated fluid recovery reduces disposal costs and environmental impact.

• User-Friendly Control Panel: Clearly labeled valves, gauges, and fittings simplify operation and enhance safety.

Technical Specifications

• Model: 8844A

• Type: Mobile landing gear strut servicing unit (hydraulic + nitrogen)

• Reservoir Capacity: 18 gallons (68 liters)

• Hydraulic Fluid: MIL-PRF-5606 or approved equivalent (petroleum-based)

• Hydraulic Bypass Relief Valve: 3000 psig

• Nitrogen Pressure Capacity: 3000 psig maximum regulated inlet

• Fluid Delivery Rate: 2 GPM @ 1500 psig

• Air Inlet Pressure: 90–110 psig

• Air Consumption: 56 SCFM @ 100 psig

• Nitrogen Consumption: 62 SCFM @ 100 psig

• Vacuum Degassing System: 20 in Hg (50.8 cm Hg)

• Fluid Filtration:

  • Suction Filter: 10 micron nominal

  • Return Filter: 25 micron nominal

• Weight (Empty): 265 lbs (120 kg)

• Shipping Weight: 365 lbs (166 kg)

• Hydraulic Fluid Weight (Full): 140 lbs (63.5 kg)

• Maximum Towing Speed: 20 mph (32.2 km/h)

• Hose Length: 25 ft (7.6 m) per reel (optional retractable hose reels)

• Optional Equipment: Dual retractable hose reels

• Construction: Steel frame with corrosion-resistant finish and towing lunette eye (3")

• Operating Mediums:

  • Hydraulic: MIL-PRF-5606 or equivalent petroleum-based fluid

  • Nitrogen: Regulated, dry nitrogen up to 3000 psig

Applications

• Landing gear strut servicing and charging

• Aircraft hydraulic fluid replacement and filtration

• Nitrogen charging for main and nose gear struts

• Ideal for line maintenance, base maintenance, and overhaul facilities