Schwing SP 1800-D, Оригинальная инструкция по эксплуатации

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4.20-2
004.553.03-EN
4.20.3 PURITY OF HYDRAULIC OIL
The purer the hydraulic oil is, the smoother the
hydraulic systems and greasing units function.
75 percent of all system failures are due to
damage to the inserted components - Caused
by impure hydraulic oil.
In complex hydraulic systems, the most
sensitive component determines the required
purity in the entire system.
For components used in SCHWING GmbH
hydraulic systems, a purity classification
according to the manufacturer's specifications
is required that is at least compliant with or
better than classification 20/18/15 according to
ISO 4406
.
SCHWING GmbH supplies its machines with
purity classification 18/16/13 according to
ISO 4406.
ATTENTION
Adhere without fail to the recommended
purity classification values of SCHWING
GmbH, as a minimum those of the
component manufacturer.
4.20.4 What does the purity classification
mean?
Contaminations cannot be convincingly
detected through a visual inspection.
The classification of solid contamination in
lubrication and hydraulic fluids occurs
according to ISO 4406.
To determine the oil purity classification, solid
particles are counted in 100ml of fluid, arranged
according to size and quantity and divided into
particle areas, (Fig. 3).
Depending on the procedure for the particle
counting, there will be 2 or 3 areas.
Fig. 3
INFORMATION
The smaller the values, the purer the
hydraulic oil.
Further information on purity classifications and
contaminations of operating materials can be
obtained from the manufacturer information on
filter systems as well as lubrication and
operating materials.
4.20.4.1 What advantages are there in
observing the purity classification?
Adherence to the purity classification
contributes significantly to the reduction of
costs due to the extension of the oil change
interval and to the prevention of damage due to
contamination.
As such, machine availability and productivity
increase.
INFORMATION
Failure to comply with the purity classification
results in the loss of warranty.
Particle ≥ 4 µm
Particle ≥ 6 µm
Particle ≥ 14 µm