REFLECTOR:Nose Wheel Shimmy Brake Problem
Tom Martino
reflector@tvbf.org
Thu, 12 Jun 2003 15:08:32 -0600
I have found that on some nose wheels (not just Velocities) the act of applying brakes flexed the strut enough to change the angle of the trailing fork. That tiny difference can sometimes cause a shimmy.
-----Original Message-----
From: Don19dw@aol.com [mailto:Don19dw@aol.com]
Sent: Thursday, June 12, 2003 2:57 PM
To: reflector@awpi.com
Subject: REFLECTOR:Nose Wheel Shimmy Brake Problem
Have not been able to solve the following problem: when braking to a stop or
to turn off runway, get nose wheel shimmy, at low speed, 20 to 30 mph. The
harder the braking the worse the shimmy, and it ceases shortly after brakes are
released. Have installed latest Matco brake discs and pads. Discs look smooth
and OK and are properly aligned. Checked nose wheel OK for balance and not out
of round. Also have extra tight shimmy damp torque of maybe 30 to 40# of force
to move tire sideways. Talked to both Matco and Velocity and tried their
suggestions. Only condition I find unusual is nose gear strut is about 7 degrees
forward at bottom end and factory says 2 degrees is normal.
Any ideas????? Did Chris Martin have this problem???
Don White N19DW XL/RG
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