Komatsu PC110R-1, Operation & Maintenance Manual

Page: 111 / 212

109
PRECAUTIONS TO BE TAKEN IN THE COLD SEASON
3.10 PRECAUTIONS TO BE TAKEN IN THE COLD SEASON
3.10.1 FUEL AND LUBRICANTS
3.10.2 COOLANT
During the cold season or in areas where the temperature is particularly low, especially during the night, it is nec-
essary to take some countermeasures meant to limit the damage deriving from low temperatures.
1 - Change the fuel and use the winter fuel ASTM D975 N. 1.
2 - Change the engine oil with an oil with suitable viscosity.
For the relevant specifications, see “4.3 FUEL, COOLANT AND LUBRICANTS”.
DANGER
•
The coolant containing antifreeze is flammable; do not smoke and do not use naked flames during the
checks and when preparing the mixture.
•
Do not use methanol-, ethanol- or propanol-based antifreezes.
1 - Use only permanent ethylene glycol-based antifreeze with the addition of anticorrosion and antifoam products.
2 - The antifreeze-water ratio must be 50% (50% antifreeze and 50% water).
3 - Do not use plugging additives, either alone or added to the antifreeze, to eliminate leakages.
4 - Do not mix antifreeze of different brands.
5 - The use of permanent antifreeze requires only the level check and the routine change. It is not necessary to
wash the cooling circuit.
6 - The required standards for permanent antifreeze are the following: SAE-J1034 and FEDERAL STANDARD O-
A-548D.
In case of doubt regarding the compliance of the antifreeze used with the standards, contact the manufacturer
and ask for precise information.