Still RX70 Series, Original Instructions Manual

Page: 356 / 406

5
Maintenance
Remaining ready for operation
7341_003-050
1 2
– Slowly open the filler cap (1) of the coolant
tank (2) and release the excess pressure.
– Unscrew further and remove the filler cap.
– Check the concentration of the coolant.
Concentration of the coolant
CAUTION
Coolant with a different specification must not be
mixed in!
– Only use coolant as specified in the maintenance
data table.
– Follow the instructions provided by the coolant
manufacturer.
CAUTION
Risk of corrosion!
The percentage of coolant must always be at
least 40%, even if frost protection is not needed
in warmer climates.
If greater frost protection is required for climatic rea-
sons, the percentage of coolant can be increased
to up to 60%.
The percentage of coolant must not exceed 60%,
otherwise the frost protection is reduced. In addi-
tion, the cooling effect is also reduced.
– Only use clean, softened water for the water
percentage.
Frost protection
up to °C
Water percentage
%
Coolant percentage
%
-25 60 40
-30 55 45
-35 50 50
-40 40 60
For details of the filling quantity in the cooling
system, see the section entitled "Maintenance
data table".
344 57348011800 EN - 11/2018