REFLECTOR: NOSE WHEEL GOT SIDEWAYS

[John Dibble]

Dave,
Sorry, I wasn't clear.  My valve is located several inches from the pivot point, near
where the gear leg curves.  This location is much different from the standard mount.

John

Dave Black wrote:

> John,
>
> > My sequence valve is mounted in the nose compartment and is activated by
> > the gear leg near where the bend is.  First my nose gear retracts 95%,
> > then the doors close 95%. After the mains retract, the nose gear fully
> > retracts and the doors "snap" shut.  It doesn't seem like slamming and
> > I am happy with it.
>
> Most builders have mounted their sequence valve farther from a pivot than
> yours, and get a very definite 'slam'. And most builders don't seem to mind
> that their nose doors slam.
>
> >From your description, it sounds as though your sequence valve is <almost>
> close enough to the pivot point to work as intended. Probably if you moved the
> sequence valve 1/2 inch closer to the pivot everything would close 100% on the
> first try.
>
> To test this theory, try the retraction test I described. When the nose gear
> gets to that 95% up position, manually pull it up the rest of the way. If the
> nose doors close completely as soon as you do that, it demonstrates the
> sequence valve was not actuated fully. That can be traced to insufficient
> force on the sequence valve's pushbutton due to the sequence valve being too
> far from the pivot.
>
> I'm not suggesting you change your sequence valve location -- especially since
> yours closes 95% on the first try. But I thought you might be interested to
> see what a little extra force on the sequence pushbutton will accomplish.
>
> For me, the really surprising thing was how hard it is to depress the sequence
> valve's pushbutton once the hydraulic system is pressurized. After all, it
> operates with light finger pressure when it's just sitting on the workbench.
>
> Dave Black
> Shortwing RG
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