After jacking is completed, which action should be taken with the collet?

After jacking is completed, which action should be taken with the collet?

• A. Screwed down firmly to the cylinder
• B. Keep two threads from the lift tube cylinder during rising
• C. Remove the collet completely
• D. Leave the collet loosely adjusted

Answer: (A)

After jacking is completed, you should screw the collet down firmly against the cylinder. The collet functions as a locking clamp that secures the lift tube to the hydraulic cylinder, preventing any relative movement as the system settles or as the aircraft is positioned. Tightening it keeps the lifting components properly aligned and eliminates the risk of rotation or unwanted movement that could cause damage or unsafe conditions. Leaving the collet loose would allow movement and misalignment, and removing it would defeat the locking mechanism entirely. The idea of maintaining a certain number of threads during rising doesn’t apply to this post-jacking security step.

After jacking is completed, you should screw the collet down firmly against the cylinder. The collet functions as a locking clamp that secures the lift tube to the hydraulic cylinder, preventing any relative movement as the system settles or as the aircraft is positioned. Tightening it keeps the lifting components properly aligned and eliminates the risk of rotation or unwanted movement that could cause damage or unsafe conditions. Leaving the collet loose would allow movement and misalignment, and removing it would defeat the locking mechanism entirely. The idea of maintaining a certain number of threads during rising doesn’t apply to this post-jacking security step.