Perform Maintenance Nikel Cadmium Battery - Teknologi Pesawat Udara

Summary

This instructional video guides Indonesian aviation vocational students through the proper maintenance of aircraft batteries. It explains the types of batteries used in aircraft, including lead-acid, nickel-cadmium, and lithium-ion, and describes their chemical processes, charging, and safety precautions. The video demonstrates step-by-step procedures for removing, inspecting, cleaning, measuring voltage, reassembling, and recharging batteries, emphasizing the importance of correct maintenance to ensure reliable performance and prevent damage. It also highlights the relationship between aircraft electrical systems and battery functionality, making this a practical and essential learning resource for maintaining aircraft safety and efficiency.

Takeaways

• 🔋 Aircraft batteries store electrical energy chemically and supply power to start engines and operate systems.
• ⚡ Proper maintenance is crucial to prevent reduced performance, shortened lifespan, or failure in emergencies.
• ✈️ Small aircraft typically use a DC electrical system powered by a generator and a battery as a voltage stabilizer.
• 🔌 Larger aircraft use both AC and DC systems, with batteries connected via transformers and inverters for emergency conditions.
• 🔧 Aircraft batteries are usually secondary cells, such as Nickel-Cadmium (Ni-Cd) or Lithium-ion, which can be recharged.
• 🧪 Lead-acid and Ni-Cd batteries rely on chemical reactions; overcharging or excessive current can cause deformation, gas buildup, or thermal runaway.
• 🛠️ Battery maintenance requires preparation, including tools, materials, and personal protective equipment (PPE).
• 🧽 Maintenance steps include removing the battery, inspecting for leaks or deformation, cleaning, and measuring voltage across cells.
• 📊 Significant voltage differences between cells indicate a defective battery cell that must be replaced.
• 🔄 Reassembly involves reconnecting cell rods, securing the casing, recharging fully with a suitable charger, and reinstalling the battery in the aircraft.
• ✅ Correct battery maintenance is essential for aircraft safety and optimal electrical system performance.

Q & A

Why are aircraft batteries essential?

Aircraft batteries store electrical energy and provide power to start engines and operate electrical and electronic systems, especially in emergencies.

What types of batteries are commonly used in aircraft?

Aircraft commonly use lead-acid, nickel-cadmium (Ni-Cd), and lithium-ion secondary batteries, all of which are rechargeable.

How does the complexity of an aircraft's electrical system relate to its size?

Smaller aircraft usually have a simple DC system with a single battery and generator, while larger aircraft have more complex AC and DC systems with multiple generators, inverters, and batteries.

What is thermal runaway and why is it dangerous?

Thermal runaway occurs when overcharging or excessive discharge generates excessive heat, potentially causing battery deformation, chemical leakage, or even explosions.

What safety measures should be taken before maintaining an aircraft battery?

Wear personal protective equipment (PPE) such as gloves and goggles, ensure proper tools and materials are ready, and verify that the battery is safe to handle (no leaks or deformation).

What are the steps to remove a battery from an aircraft?

Open the battery compartment, disconnect the quick-connect connectors, loosen fastening bolts, lift the battery, and move it to a work table for inspection and maintenance.

How should a battery be inspected during maintenance?

Check for leaks, corrosion, or deformation on both the battery casing and cells. Measure voltage across individual cells to ensure there are no significant differences, which could indicate a faulty cell.

What is the correct procedure for cleaning an aircraft battery?

Clean the outer surface, terminals, and cell bodies using appropriate materials, ensuring no electrolyte residue remains, and avoid damaging the connecting rods or terminals.

How is a battery recharged safely?

Use a charger compatible with the specific battery type, follow proper charging rates, and monitor the process to prevent overcharging and overheating.

Why is proper battery maintenance important for aircraft performance?

Proper maintenance ensures reliable power supply, extends battery lifespan, prevents electrical failures, and maintains overall aircraft safety and operational efficiency.

What should be done if a battery cell shows a significantly lower voltage than others?

The defective battery cell should be replaced, as a large voltage difference indicates the cell cannot reliably provide electrical power.