Posted for "Bill Wade" <super_chipmunk@roadrunner.com>:

One benefit to being a newbie is that my kit (hopefully) contains the latest
factory mods. OTOH I haven't been around long enough to know when these
might've been included so this may be old news to many on the list. The
picture shows the solid manifold that is attached to the trunnion and that
connects the tubing in the gear leg to the flex hose.

I temporarily routed the hose to the gear box using a loosely secured
bulkhead TEE, swung the gear and found no twisting or rotation of the hose.
However, there is significant bending at the hose connection crimp. To relieve
the stress I'm thinking I might mount an aluminum bracket (using the manifold
attach screw) to support the hose using a cusioned Adel clamp. That should
reduce movement at the crimp but still allow some flex for the hose. Lancair
used Aeroquip 566 hose- the equivalent Stratoflex 124 has a minimum bend
radius of 2" so that bending along the rest of the hose length shouldn't be an
issue.

Some links for -4 swivel fittings are:

http://www.anplumbing.com/shop/index.php?shop=&dept=Aluminum ,
http://www.discounthydraulichose.com/SS_6500_JIC_Male_x_JIC_Female_Swivel_Elbow_p/ss-6500.htm
, http://www.tompkinsind.com/catalog/product.asp?itemid=39971

They're available in aluminum, steel, or stainless. I don't know what
pressure they might be rated for. They'd be stationary when under pressure
rather than rotating so that might be a positive factor for service life and
leak resistance. -Bill Wade
----- Original Message -----
From: Colyn Case on earthlink
To: lml@lancaironline.net
Sent: Sunday, January 20, 2008 1:48 PM
Subject: [LML] Re: Flexible hose assemblies


I am concerned about the significant twist imposed on the line when the gear
is extended/retract

Bob, good point. I was looking at mine and don't like it. On the other
hand, I'm suspicous about swivels in such a high pressure application. do you
know what the service history has been with those?

Colyn