Aircraft Jacking Procedures of Tripod, Bottle and Tronair Jacks
Aircraft jacking is a fundamental aspect of aviation maintenance practices, allowing technicians to safely elevate an aircraft to carry out inspections, repairs, and other forms of servicing. To best carry out these various procedures, professionals need to have a clear understanding of how to properly use aircraft jacks, as well as obtain the knowledge necessary to make sound investment decisions. To aid in these efforts, this blog will provide a comprehensive guide to aircraft jacks, so read on to learn more.
The Basic Purpose of Aircraft Jacks
As stated before, aircraft jacks are engineered to lift aircraft off the ground safely and steadily. This ensures that maintenance teams can better inspect hard-to-reach parts, change landing gear, or perform structural checks without risking harm to the vehicle or personnel.
Common Types of Aircraft Jacks
There are two primary types of aircraft jacks on the market, these being axle and tripod variations.
Axle Jacks
Axle jacks are commonly used for tire and brake changes, where they specifically lift the aircraft by its landing gear axles to provide ease-of-access to such areas. They are also useful for general servicing of landing gear, with many operators regularly relying on such equipment.
Tripod Jacks
Tripod jacks are most suitable for large aircraft, where they utilize a stable tripod base to effectively balance wings, tail structures, or the fuselage itself. This equipment is often relied on for major maintenance tasks, including functional checks, gear swings, structural teardowns, and much more.
The Importance of Leveling Before Jacking Aircraft
Keeping the aircraft level is a crucial step before any jacking process begins, as supporting structures unevenly can lead to the risk of tipping or shifting. If this occurs, there is a possibility of damaging the aircraft or endangering surrounding personnel.
Important Steps to Ensure Safe Handling
- Move the aircraft inside a closed hangar to eliminate wind risks during maintenance.
- Confirm the ground surface for operation is stable and level prior to using jacks.
- Attach a stabilizer when using any aircraft jack to hold the vehicle or structure steady.
Where to Position a Jack During Maintenance
Positioning a jack at the correct point of an aircraft during servicing is non-negotiable, with every model having designated areas that are engineered to handle weight distribution. To carry out proper position, one should carry out the following procedures:
Step 1: Check the aircraft’s maintenance manual to identify exact jacking points.
Step 2: Confirm the aircraft’s center of gravity.
Step 3: Align the jack properly with these points before lifting.
If one is unsure about how to properly use a particular jack, they should consult with a senior technician or refer to manufacturer support to guarantee safety.
The Importance of Pre-Jacking Safety Inspections
Before lifting any aircraft, maintenance crews should be sure to do the following:
- Inspect the jack for visible damage or wear.
- Test safety locks and check all pins.
- Ensure the jack is fully operational.
Any jack with signs of wear, corrosion, or malfunction must be treated immediately to avoid safety hazards.
Additional Safety Precautions
- Secure the Aircraft: Always use wheel chocks and engage brakes when the aircraft is parked.
- Check Weather Conditions: Avoid outdoor jacking if wind conditions are unpredictable or adverse.
- Clear the Work Area: Always keep the service area free from clutter, tools, or debris that could cause safety risks while lifting structures.
- Never Overload: Be sure to strictly adhere to the jack’s specified load capacity.
Frequent Errors and How to Avoid Them
- Overlooking Manuals: Always consult the aircraft’s manual first.
- Reusing Faulty Jacks: Replace damaged equipment immediately.
- Skipping Stabilizers: Always use stabilizers when needed.
- Ignoring Uneven Surfaces: Only jack aircraft on stable, flat surfaces.
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