>
> What kind of cable/linkage has anyone used to actuate
> it?  It appears the actuating arm (on the bottom) needs
> to travel 90 degrees from full open to full closed?
>
> No directions came with it.
>


Hello Bill,

We mounted the Matco parking brake valve on the top of the nosewheel well
next to the hydraulic dump valve on our 320. We used a bowden cable to
accuate it from a knob on the panel. You can get away with less than 90
degrees of travel, probably around 60 degrees. For proper brake usage, you
want to make sure that the valve doesn't restrict the fluid at all when it's
off. The lever just needs to be moved enough to stop off the flow in order
for it to work properly. Blow into it while you're moving the lever and
you'll see how far you need to move it. We've found the parking brake to be
a very valuable addition to our plane. You'll be glad you put it in.

Bill
harrelson@erols.com
N5ZQ   LNC2  O-320   VA42