wrote: > Joe wrote: > =20 > I have a can of Phillips 66 X/C Aviation Hydraulic Fluid that Id like to u= se in my Parker 108 series hydraulic pack. MIL-PRF-5606F states that viscos= ity should be ~15cSt at 38C. The Parker/Olidyne spec is ~35-65cSt. So the= Phillips fluid is less viscous and is labeled not for use with natural rubb= er components. =20 > =20 > Does anyone know if this fluid is suitable? > =20 > Can someone recommend an inexpensive, automotive fluid that has proven eff= ective? > =20 > Much appreciated > =20 > Joe Czabaranek > 424DH > =20 > Joe, > While 5606 hydraulic oil is a bit pricey, you only need a little, and it=E2= =80=99s not like engine oil that you need to change periodically=E2=80=A6alt= hough they do recommend flushing/replacing every ten years=E2=80=A6 Why take= a chance with the seals, etc. It will cost you a LOT more time and aggravat= ion to repair/correct the damage caused by non-compatible fluids than just u= sing the specified 5606. > =20 > My two cents=E2=80=A6 >=20 > Bob --Apple-Mail-DF22DDF7-EC68-4B13-BD82-D9405D7798E5 Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: quoted-printable

The Parker manual doesn't specify 5606= , that's why I ask. The manual specifies "ATF, OD18, or other clean hydrauli= c oil with a viscosity of 150-300 SUS at 38C", if another type is used "cons= ult the factory"

The label on Phillips 5606 states t= hat it is not to be used on natural rubber. And the MIL-SPEC viscosity is ou= tside of the Parker manual's recommendation.

Two vo= tes for 5606 from the List so far. Anyone have experience with another= fluid?

Joe Czabaranek

On Sep 25, 2013, at 12:25= PM, Robert R Pastusek <rpastusek@h= tii.com> wrote:

=

Joe wrote:

I have a can of Phillips 66 X/C Aviation Hydraulic Fl= uid that Id like to use in my Parker 108 series hydraulic pack. MIL-PR= F-5606F states that viscosity should be ~15cSt at 38C. The Parker/Oli= dyne spec is ~35-65cSt. So the Phillips fluid is less viscous and is labeled not for use with natural rubber compon= ents.

Does anyone know if this fluid is suitable?

Can someone recommend an inexpensive, automotive flui= d that has proven effective?

Much appreciated

Joe Czabaranek

424DH

Joe,

While 5606 hydraulic oil is a bit pricey, you only nee= d a little, and it=E2=80=99s not like engine oil that you need to change periodically=E2=80=A6although they do recommend flushing/replacing every te= n years=E2=80=A6 Why take a chance with the seals, etc. It will cost you a L= OT more time and aggravation to repair/correct the damage caused by non-comp= atible fluids than just using the specified 5606.

My two cents=E2=80=A6

Bob

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