jbhart(at)onlyinternet.ne
Guest
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 Posted: Mon Jun 05, 2006 6:56 am Post subject: Adjustment of Wheel Camber on a FireFly |
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| Quote: | >>>>>>>>>>>>>>>>>>>>>>>>
Date: Mon, 5 Jun 2006 06:18:15 -0700
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From: "David Lehman" <david(at)davidlehman.net>
To: kolb-list(at)matronics.com
Subject: Re: ADjustme of Wheel Camber on a FireFly
Sender: owner-kolb-list-server(at)matronics.com
Reply-To: kolb-list(at)matronics.com
X-Virus-Scanned: by amavisd-new at onlyinternet.net
After installing replacement (not new) gear legs and gear/axle fittings on my early Firestar, both my camber and caster are incorrect... I used the existing mounting holes not realizing that apparently the holes are drilled by the installer, not Kolb and consequently, no two Kolbs will be alike... Now I need to move the gear up further in the socket and drill new holes...
Question is, what is the criteria for aligning the gear?... If a 5-6' 5/8" rod is slid in the axle sockets so that the axles are in alignment and then the mounting holes drilled, is that sufficient?...
| Quote: | >>>>>>>>>>>>>>>>>>>>>>>
David,
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In my case with the FireFly, I initially adjusted the camber with 200 pounds
of bagged sand in the seat and the gas tank half full. I kept bending until
the wheels were straight up and down and parallel with the load in the seat,
with the FireFly standing on its wheels, and after rolling the FireFly
forward to seat the wheels. After removing the 200 pounds of sand and
rolling the backwards and FORWARDS to seat the wheels I measured the camber
and found it to be 2.5 degrees with the top of the wheel away from the
fuselage.
I am not sure I remember this correctly, but I believe that after the sand
was removed the wheels had a barely noticeable slight tow-in.
Before I made these adjustments, the FireFly was very squirrelly on hard
surfaces, especially so in gusty cross winds. With these adjustments, the
FireFly is very stable on the ground and goes where you expect it for a
given rudder and stick input.
In your case you do not need to move the leg up in the socket and drill a
new hole. Leave the leg length exposed the same and align the axle, clamp
it in position and drill a new hole slightly above the old one through the
socket.
I took some photos while I replaced the bent gear leg with a new one. I will
try to put them up in the near future.
Jack B. Hart FF004
Winchester, IN
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