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Randy,
Univair sells a book on Ercoupe service memos
and bulletins. The following pay particular attention to the nose landing
gear area:
Service Memorandum #15 Vibration - Nose
landing gear strut and wheel
Service Memorandum #34 Inspection of nose
landing gear wheel - die cast
Service Memorandum #41 Rebuilding of nose
landing gear assembly
Service Memorandum #51 Installation of the
5.00x5 and 6.00x6 nose wheel
Things I'd check for would be wear or looseness
in the nose landing gear upper and lower torque link attach bolts and
bushings. Then check for play between the nose strut inner and outer
cylinder. Check your steering connection to the nose gear, if you have the
original connector, I'd suggest upgrading to the rod-end type offered by Univar
and Skyport. It's stronger than the original. All of these
inspections can be accomplished by weighting down the
tail.
I've completed my nose strut rebuild just
over two years ago, before starting all of that my nose gear would shake
the fillings out of my teeth! This would be not just on landing but high
speed taxi operations too. Randy, let me
know what you have found. If you need further details I'll try to explain
best I can. If you have an illustrated parts breakdown for your aircraft
it will make some explanations easier too.
Walt Uebele
1946 415-C
N94113
From: Randy Helm [mailto:[EMAIL PROTECTED]
Sent: Saturday, December 11, 2004 4:50 PM
To: [email protected]
Subject: [COUPERS-TECH] Front wheel vibration
----[Please read http://ercoupers.com/disclaimer.htm before following any advice in this forum.]----
I am in the process of doing some
rebuilding over the next coupe of months.
The vibration in the nose wheel has
progressively gotten worse and I cannot really tell by looking at the diagram
what I need to replace – adjust – etc.
I have a 46 415C, single nose
fork. I have replaced the wheel bearing. Any
suggestions?
Thanks,
Randy
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