Vulcan Attachments V3GS, Руководство по эксплуатации и техническому обслуживанию

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15
3.2 Hydraulic Oil

When the breaker is used continuously, the
temperature of the hydraulic oil normalizes at
a certain level, depending on the conditions
and the carrier. At this temperature, the
viscosity of the hydraulic oil should be 20 ~ 30
cSt (2.90~5.35°E).

The Vulcan hydraulic breaker must not be
started if the viscosity of the hydraulic oil is
above 1000 cSt (131°E) or operated when the
viscosity of the hydraulic oil is below 15 cSt
(5.35°E).
1) When the oil is too thick, the following
problems may occur.
a. Difficulty starting.
b. Stiff operation.
c. Irregularly and slow striking.
d. Danger of cavitations in the pumps and
hydraulic breaker.
e. Sticky valves.
f. Filter bypass, impurities in the oil not
removed.
2) When the oil is too thin, the following
problems may occur.
a. Efficiency losses (internal leaks).
b. Damage to gaskets and seal leaks.
c. Accelerated wearing of parts, caused
by decreased lubrication efficiency.
3) Special oils

In some cases special oils (e.g. biological
oils and non-inflammable oil) can be used.
Please observe following aspects when
considering the use of special oil:

The viscosity range in the special oil must
be within the range of 15 ~ 1000cSt
(2.35~131°E).