12
Finally got that stubborn Cessna 172 nose gear actuator to retract after three days of fighting with it.
Turns out the manual's torque spec for the actuator mounting bolts was off by about 15 foot-pounds, which was causing just enough binding to lock it up.
2 comments
Log in to join the discussion
Log In2 Comments
the_emery10d agoMost Upvoted
Have to disagree on blaming the manual's torque spec. In my experience, that binding usually comes from a misaligned uplock assembly or worn bushings in the gear leg itself. An extra 15 foot-pounds on the actuator bolts shouldn't cause a full lock-up if everything else is in rig.
4
grantt1110d ago
Oh man, I fought that same bind last month. Ended up being a tiny burr on the actuator shaft no one saw. A little emery cloth and it cycled smooth.
1