DOT 5 and other technical stuff

[bz5@ornl.gov (Case Biezenbos)]

Components within the hydraulic system are specifically designed and
manufactured for use with the intended fluid.  While DOT 5 maybe be inert,
that doesn't mean that it can not effect certain rubber and synthetic
compounds.  Remember, pure silica is a crystaline substance, so you know
there is more there than meets the eye (on the list of materials on the
outside of the can).Commercial aircraft use a noncombustable hydraulic
fluid, one brand of which is called skydrol.  It too is inert, but corrosive
as all get out to seals and O-rings made of buna-n, a specific rubber
compound with a high Zinc content often used for fuel applications.  The
point is, there is a fantastic amount of engineering that goes into
something as seemingly mundane as your brakes, and they are not designed for
DOT 5, they are designed for DOT 4.

I also want to thank Robert Meyers, Eric Harmon, Steven Buckholtz and Paul
Waterloo from the quattro list for all of the help and information thay have
recently provided and to appologize to the subscribers for my recently
botched attempt to go off line for a while during a business trip.

Case Biezenbos
Senior Quality Engineer
Lockheed Martin Energy Systems
Oak Ridge, TN

------- End of Forwarded Message
Case Biezenbos

Senior Quality Engineer

Energy Systems Quality Assurance   
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