Ammann ASC 110 - Coolant; Hydraulic Oil

105ASC 110
2158
2152
MAINTENANCE MANUAL
3.2.4. Hydraulic oil
For use in the hydraulic system of the machine, only high-quali-
ty hydraulic oils of output class according to ISO 6743/HV (equal
to DIN 51524 part 3 HVLP; CETOP RP 91 H).
Standardly rell the machines with hydraulic oil of kinematic vis-
cosity 68 mm
2
/s at the temperature of 40 °C (104 °F) ISO VG 68.
This oil is the most suitable one to use in the broadest range of
ambient temperatures.
At high ambient temperatures, when the
oil temperature reaches continual 90 °C
(194 °F), we recommend replacing the oil
with one of kinetic viscosity 100 mm
2
/s
– HV.
Should it be required to start the ma-
chine at temperatures below –8 °C (18 °F)
lasting more than one month, replace oil
in the hydraulic system with one of ki-
netic viscosity 46 mm
2
/s - viscosity class
HV 46.
At temperatures below –13 °C (9 °F),
replace oil with one of kinetic viscos-
ity 32 mm
2
/s - viscosity class HV 32, see
Operating Instructions chapt. 2.9.3.
Synthetic hydraulic oil
Hydraulic system can be lled with synthetic oil, that is com-
pletely degradable by microorganisms found in water and soil
in case of leak.
When changing over from mineral oil to
synthetic or when mixing oils of dierent
brands, always consult the procedure
with the oil manufacturer or dealer!
3.2.3. Coolant
Use coolant consisting of 50% of frost-resistant ethyl glycol
agent and water. Use the coolant with antifreeze even in zones
where temperatures do not fall below -36 °C (-34 °F). The cool-
ant is not only protecting the cooling system against frost but
increases also the boiling point. Inhibitors contained in the an-
tifreeze protect parts of the engine cooling system and extend
their life. Propylene antifreeze may also be used as coolants.
Do not use more than 50% of anti-
freeze in the coolant, unless absolutely
necessary.
Never use a ratio higher than 68 %.
Their mutual mixing is not recommend-
ed. Anti-corrosive properties may be lost
when mixing dierent types of coolants.
Nitric amines dangerous to health are
formed when mixing the nitride-base
antifreeze and the amine-base agent.
Check the ratio of antifreeze in the cool-
ant before wintertime using a refractom-
eter (hydrometer).