REFLECTOR: Main Gear Actuator

Rene Dugas dugasd at bellsouth.net
Tue Apr 1 16:49:31 CDT 2008


Andy,

I like the shim idea.  Wish I had thought of that.  I just held my
tongue just right.  Didn't work very well.  Third try no leak though.  I
did the sand paper edge removal also.

Rene'

 

-----Original Message-----
From: reflector-bounces at tvbf.org [mailto:reflector-bounces at tvbf.org] On
Behalf Of Andrew Ellzey
Sent: Monday, March 31, 2008 6:21 PM
To: Velocity Aircraft Owners and Builders list
Subject: Re: REFLECTOR: Main Gear Actuator

 

My new main gear cylinder leaked new from the factory. Yes you do have
to remove the fittings to remove the ends. After removing the C-ring, I
pushed the shaft end-stop and seal assay. towards the center of the
cylinder an inch or so, to gain access to the C-ring groove. Save
yourself some trouble and use some 320grit or finer sand paper, and
remove the burs and keep sanding until you have a small radius on the
leading and trailing edge of the C-ring grove. I also used a piece of
plastic cut out of a milk jug like a piece of shim stock over the new
outside o-ring seals, to protect the seals in the same manner that you
would do to start a set of piston rings into a cylinder. This is tricky
to do but the only way I could keep from damaging the new seals. Even
with the C-ring radius, it can still damage the new seals when you try
to put everything back together. The new seals will expand inside the
groove and when you try to force them past the groove it usually damages
your new seals. I damaged the first set of seals without using the shim
stock. Your milk jug plastic shim stock has to be the exact diameter and
not overlap itself inside the cylinder. Use the thinest plastic that you
can find. You should verify that your plastic is thin enough by first
leaving the seals off the shaft end-stop and checking the fit. Your
results my varry this worked for me.

 

Andy Ellzey

 

----- Original Message ----
From: Rene Dugas <dugasd at bellsouth.net>
To: Velocity Aircraft Owners and Builders list <reflector at tvbf.org>
Sent: Monday, March 31, 2008 4:44:15 PM
Subject: Re: REFLECTOR: Main Gear Actuator

One must remove the two fittings -one at each end to get the cylinder
apart.  That is usually the mistake.

Rene'

-----Original Message-----
From: reflector-bounces at tvbf.org [mailto:reflector-bounces at tvbf.org] On
Behalf Of MMurp16900 at aol.com
Sent: Monday, March 31, 2008 11:30 AM
To: reflector at tvbf.org
Subject: Re: REFLECTOR: Main Gear Actuator

Hi Jon

Try using high pressure air .

Be careful it may pop out with dangers force,

Mack

 

In a message dated 3/10/2008 11:09:03 A.M. Pacific Daylight Time,
s_korney at hotmail.com writes:

Check to see if there is a burr on the snap ring groove... That might be
holding it in...

Best... Steve

From: jbachman at zianet.com
To: reflector at tvbf.org
Date: Mon, 10 Mar 2008 09:50:13 -0600
Subject: REFLECTOR: Main Gear Actuator

I tried to disassemble my RG STD main gear actuator to replace the seals
last night and ran into a dead end.  I removed the snap ring at the end
where the actuator shaft exits the cylinder and could not extract the
piston.  Is there something that I?m missing?

 

It is an ARO TEK actuator.

 

 

 

Jon

N956DR

 

 


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