DanWilkins
Pre-takeoff checklist
- Joined
- Mar 23, 2018
- Messages
- 235
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Dan
Pleas feel free to watch part of my preflight. Do you know what the yellow rag is for? And why do I pull the prop through at least seven times?
Yup. Hydrolock check. The drain valve is to release oil that could accumulate in a lower cylinder.pulling prop thru to check for hydraulic lock in the lower cylinders. yellow rag attached to a manifold drain valve.