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Nose Gear Steering Bushings
by Pat Donovan » Fri Dec 23, 2011 5:45 pm
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Re: Nose Gear Steering Bushings
by N3322G » Fri Dec 23, 2011 5:57 pm
Patricia Jayne (Pat) Keefer ICS 08899
PA-39 #10 Texas
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Re: Nose Gear Steering Bushings
by skipsouthernsky » Mon Jan 02, 2012 3:23 am
I thought I would weigh in on this subject since you brought it up. Only check that clearance with the airplane on the ground with the normal weight on the nose gear. DO NOT, I repeat, DO NOT check that clearance with the plane on jacks. If you reduce that clearance to a small value with the plane on jacks, it is possible for the nose gear to become unlocked when on the ground with weight on it......most likely while taxing over bumps.
Due to the geometry of the nose gear, there is a difference in the slack between the rollers and the steering bellcrank when weight is on the gear opposed to no weight on the gear. Check it out yourself. Be very careful. Always assure there is some play between the rollers and bellcrank when on the ground with weight on the nose. Otherwise the draglinks can be kicked past over center while taxiing.
A little bit of play in the rudder pedals when on the ground is a lot easier to live with than a collapsed nose gear, bent prop, engine sudden stoppage, etc.
Sincerely,
Skip Dykema
Comanche 180, Commercial-Instrument, SEL, MEL, A&P
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