I assume the distance between the rubber block upper and lower reaction
plates is correct - ie: 133mm. If it is too small, the undercarriage
will not retract fully or lock in place.
The most likely suspect is that the swinging arm bearings have been over
tightened. If they are too tight you will need to insert shims between
the bearing shells to loosen them up.
You dont say if the retraction mechanism ever worked or if the aircraft
is flying.
----- Original Message -----
From: Robert Hatton
To: europa-list@matronics.com
Sent: Monday, June 18, 2007 8:18 PM
Subject: Europa-List: Undercarriage Not Retracting
Has anyone experienced undue stiffness when retracting the mono-wheel
undercarriage, or its absolute refusal to retract? I have experienced
this and I am trying to figure out how to cure the issue. Any ideas?
Robert Hatton
A128 N741JH
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