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Subject: Re: Hydraulic Cylinder Rigging
From: "Greenbacks, UnLtd." <n4zq@verizon.net>
In-reply-to: <53870F9E.8030406@comporium.net>
Date: Thu, 29 May 2014 08:38:37 -0400
Cc: List Lancair Mailing <lml@lancaironline.net>
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 <53870F9E.8030406@comporium.net>
To: John Cooper <snopercod@comporium.net>

If you have rigged correctly, two conditions exist:
In the down position and with the cylinder fully extended, there will be =
little to no force imparted to the mounting points=85just enough shaft =
movement to have the gear links
go over center and lock.
In the up position, the only force on the mounting points will be the =
actual weight of the gear.
This is what you want to achieve. Otherwise, 12-1500psi applied to the =
attach points could cause delimitation/failure over time.
It=92s no big deal to get it just right.

:-)


On May 29, 2014, at 6:44 AM, John Cooper <snopercod@comporium.net> =
wrote:

> Angier--
>=20
> Nice work on the internal stop. My problem is that both you and Chris =
Z. tell me I "must" provide a down stop, but that's in direct =
contradiction to the instructions in the manual. If it's mandatory, then =
why no Service Bulletin? I understand that there were a lot of mistakes =
and omissions in the manual, but I'm wondering if there have been any =
instances of over-center links failing due to having down side pressure =
on them? Have there been any other actual problems, or is this just a =
theoretical "nice thing to do"?
>=20
> Best--
>=20
>  --John
>=20