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My advice is to be very careful with inspection of
the over-center link.I recently came very close to a serious incident (nose gear
failure) due to wear after 1200 hours.I was fortunate that the horizontal attach
point had only moved 1/2"; only far enough to cause a gear warning light failure
due to an off center contact on the mini-switch. Problem # 1 was that the
horizontal attach hard point to the tunnel had delaminated, due to wear
and pressure and also I'm sure, an inferior bonding of the hard point by
me.
The 2nd problem is that the bolt that holds the top
of the over-center link in place was greased according to plans, but there is
absolutely no way to grease it again without dismantling the entire unit.The
grease after 15years and 1200 hours had become quite hard and was no longer
doing anything except making the over-center link harder to move. It should have
been built with a zerk fitting at each end.
I'm sorry if this was long and complicated. It is
complicated.Sincerely, Fred N. Baron LNC2 9BF
(don't fly like my
brother)
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