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Ralf,
I saw Grayhawk's "Don't do that!" comment. It's possible that you could make your idea work.
1. On the ground, Master OFF.
2. Cycle the flaps up and down until they won't move any more. This means that the hydraulic system pressure is zero or close to it.
3. If you can safely jack so as to raise the nose until the nose gear is an inch off the ground, do it. With the mains resting on the ground and chocked, their geometry will keep them solidly locked down (as well as the down locks!).
4. Then you can swing the nose gear passively (rope, push, or whatever technique you choose, as long as the jacking is secure) to do your testing and adjusting. You can move the gear lever to let the hydraulic fluid move in the proper directions. With no pressure, the mains will stay safely down. The reason this will work is that the nose gear strut is vertical. A similar approach will not work for the mains because they swing down as they move after before they swing up into the wells.
Be safe.
Ted
On 6/11/2013 10:30 AM, bronnenmeier@GROBSYSTEMS.COM wrote:
Dear subscribers,
A friend took a picture of the belly of my airplane in flight with the
gear up. It looked to me that the nose gear door was not completely
closed. I had that issue before on the ground before and adjusting the
threaded rods fixed it.
I am reluctant of putting the airplane on jacks and do a complete gear
check because my jack up equipment is not perfect and it is a major
undertaking to get the airplane that high.
Someone told me (unfortunately I don't remember who) that I can leave
the plane on the main gear and just use a hoist with ropes around the
prop and lift the nose gear of the ground and then move the gear switch
up (after unlocking it).
The hydraulic pressure is not high enough to move the mains but it will
move the nose gear. Is this an ok procedure to use? Do I need to remove
the spinner if I wrap a rope around the 2 blades of my 3 blade prop?
Thanks for your input
Ralf
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