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Message
In chaper "S. Lubricants" on page 27, in the section for
hydraulics it
calls out "MIL-H-5606/MIL-H-83282 Or equivalent (Red
Oils)". Right
after that is:
NOTE: Dot 5.1 brake fluid is NOT
compatible with MATCO mfg brakes, and
will damage the Buna-N o-rings used in
the system.
I think they forgot to
mention that it was OK to use DOT 5, after all, why make the point of mentioning
that DOT 5.1 is bad? The following description is from the Matco web page,
regarding one of their common master cylinders:
MATCO mfg's MCMC-4 master cylinder
uses a REMOTE reservoir. The MCMC-4 can be used in individual or dual brake
applications. Buna-n orings are used in this assembly. Mil-H-5606
aircraft hydraulic fluid or compatible fluids are reccomended. DOT5
may be used but not DOT5.1 which contains glycol. DOT3 and DOT4 may not be
used and will cause immediate damage to the seals.
FWIW, I just put DOT 5
in the Kolb brakes, with Matco master cylinders. I'll also use it in the
RV-8, assuming it works OK in the Kolb.
Cheers,
Rusty (up
over)
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