Not covered under warranty:
- Heat Damage – Heat Seizures and other damage resulting from overheating are NOT covered under warranty.
It is the pilot’s responsibility to ensure proper and correct tuning of the carb on every flight, proper fuel/oil mixing ratio’s are used, good quality 100% synthetic oil is used, air-filters are kept clean, etc.
Keep a sharp listen at all times for any sound of engine pinging – this is an indication of severe engine damage occuring. If you hear pinging, back off the power immediately and land at the first possible oppurtunity. Correct the problem before flying again! Inspect piston rings frequently for heat damage.
- Vibration Damage – It is the pilot’s responsibility to ensure everything is properly and correctly secured and to ensure no excessive vibration. If the propeller is damaged or out of balance, running that prop WILL lead to damage!
Ensure the exhaust is correctly secured. Check all exhaust brackets before and after EVERY flight! Check all welds and areas around these welds for early signs of damage before AND after each flight!
Note: Vibration tends to work-harden aluminium and stainless-steel. This is NOT a good thing, as eventaully the material gets too hard and becomes brittle. Early signs are micro-fractures which eventually become major breakages. Spot them early to prevent major repair costs and/or injury.
- Wear and Tear – no warranty on normal breakage nor wear and tear to rope, lines, rubber mounts, spark-plug, belts, propeller, gaskets, etc. These are normal wear and tear items and should be replaced as required.
Breakage - No warranty on breakage resulting from falls, bumps, impacts, collisions, etc. No warranty resulting from incorrect, inappropriate nor irresponsible usage.
Proper and thorough pre-flight inspections and post-flight inspections are required to detect possible problems early to remedy these before they become a serious problem or a threat to your safety.
This is worth repeating: Proper and thorough pre-flight inspections and post-flight inspections are required to detect possible problems early to remedy these before they become a serious problem or a threat to your safety.
Already mentioned, but this also deserves repeating:
Never fly with a damaged propellor or one that is out of balance
The forces within a spinning propeller are huge and a damaged propeller might disintegrate without warning, with potentially disastrous consequences. The fragments become high-velocity shrapnel and could do serious damage to property or injury to people.
An unbalanced propeller causes destructive vibrations which could cause serious damage to welds on your chassis and to other components.
Note: Propellers tend to become unbalanced over time for various reasons. It is the pilot's responsibility to ensure correct propeller balancing. Do NOT assume that a new propeller is perfectly balanced. Check you propeller's balancing often. If you notice excessive vibrations in flight, land at your first oppurtunity. Correct the problem before flying again. Seek professional help if you are unable to balance your propeller.