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1. 08:26 AM - Landing Gear Cylinder (Larry Wokral)
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| Subject: | Landing Gear Cylinder |
--> Commander-List message posted by: "Larry Wokral" <l.wokral@ix.netcom.com>
I have a 500B with a new Merlyn 320 conversion that is currently at
Aerotronics in Missoula MT for a major avionics upgrade (CNX80, MX20, PS
Engineering 7000B intercom & PXE7300 entertainment center, GTX330
transponder). While visiting it last Friday, I noticed that the left side
inboard MLG cylinder had a pretty good leak at the piston (forward) end of
the cylinder. Since they will want me to fly it with their technician
onboard to test the IFR functions of the new CNX80 for certification before
I can get it back to its home field (Hamilton MT, 6S5) for a repair, I may
need to remove it while it is there and reinstall it before that flight.
My service manual is in California, so my question to the list: Is there
constant pressure on these lines when the electric pump isn't running? Can I
remove the hydraulic lines to this cylinder and the cylinder itself without
having to bleed down any high pressure? If not, will I have to recharge the
accumulator before flying it after reinstallation? Lastly, is there any
danger in the landing gear stability of the plane on the ground while this
cylinder is removed?
I know this is a pretty simple concept that I should already understand, but
I am still new with Commander flying and service and am still learning. I'd
rather take the cylinder to my home field mechanic for repair than to have
some local mechanic in Missoula do it if it is possible.
Thanks,
Larry Wokral (who wants to make it to the TCFG fly-in if I can get it all
together my the August 25 commitment time)
PS: I read the Aeroshell report on 5606 hydraulic fluid alternatives that
someone here provided. If there are so much better alternatives, why hasn't
there been a universal substitution? I remember a wheel fire on a C119G
after the pilot's hard braking heated up the magnesium wheels and ignited
the fluid in the lines.
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