Vulcan Attachments V3GS, Руководство по эксплуатации и техническому обслуживанию

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4) Cleanliness of the hydraulic oil

The hydraulic oil filter of the carrier will
clean the oil flowing through the
breaker.

The purpose of the oil filter is to remove
impurities from the hydraulic oil since
they accelerate component wear,
cause blockages and even seizure.

Impurities also cause the oil to
overheat and deteriorate.

Air and water are impurities in oil.
5) Oil filter

When working with the hydraulic
breaker, the carrier oil filter must fulfill
the following specifications:
a. The oil filter must be rated at 25
microns maximum.
b. The oil filter must be a standard
return line filter rated to maximum
working pressure.
c. The oil filter must have a volume flow
capacity of at least twice the
breaker‟s maximum flow.
d. The cooler must withstand a
dynamic pressure of 290 psi (20
bar).
6) If the carrier‟s oil cooler is too small, the
original cooler must be replaced with a
larger one or an auxiliary cooler must be
installed. The auxiliary hydraulic cooler
can be installed:
a. In front of the radiator, in which case
an additional fan is not required, i.e.
maximum rise of cooling air is 5°C
(40°F).
b. Any other suitable place, using a fan
either hydraulically of electrically
driven
7) Damage caused by hydraulic oil
contamination in the carrier and breaker
circuits causes:
a. The working life of the pumps to be
significantly shortened.
-
Premature wear of the parts.
-
Cavitation.
b. Valves to not function properly.
-
Spools bind – premature wear of the
parts.
-
Blocking of small holes.
c. Wear of the cylinders.
d. Reduced breaker efficiency.
-
Premature wear of moving parts and seals.
-
Danger of the piston seizing and
the oil overheating.
e. Shortened working life and reduced
efficiency of hydraulic oil.
-
Oil overheats and the oil quality
deteriorates.
-
Electro-chemical changes in the
hydraulic oil
.