Service Manual

Fluid Recommendations
A reputable supplier can help you make the best
selection of hydraulic fluid for use in Eaton hydro-
static products.
For satisfactory operation, the following recommen-
dations apply:
1. The filter system used in the hydraulic circuit
should be capable
of cleaning and maintaining
the hydraulic fluid to meet
IS0 Cleanliness Code
18/13 per SAE J1165. This code allows a
maximum of 2500 particles per milliliter greater
than
5µm and a maximum of 80 particles per
milliliter greater than 15µm.
viscosity ranges are from 80-180
SUS (16-39 cSt).
Viscosity should never fall below 60
SUS (10 cSt)
and, at the lowest expected start-up temperature,
should not exceed
10,000 SUS (2158 cst).
3. The fluid should be chemically stable, incorpo-
rating rust and oxidation inhibitors.
Specific types of fluid meeting these requirements
are:
Premium hydraulic oil; such as Mobil DTE-26
Engine crankcase oil-SAE 2Ow-20, SAE 30 or
2. At normal operating temperatures, optimum
SAE
40
Note: If the natural color of the fluid has become
milky, it is possible that a water contaminant problem
exists.
For accurate level readings, take readings when the
fluid is cold.
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