Komatsu D32E-1 - 14. Cold Weather Operation; 14.1 Precautions for Low Temperature

14. COLD WEATHER OPERATION
14.1 PRECAUTIONS FOR LOW TEMPERATURE
If the temperature becomes low, it becomes difficult to start the engine, and the
coolant may freeze, so do as follows:
14.1.1 FUEL AND LUBRICANTS
Change to fuel and oil with low viscosity for all components. For details of the
specified viscosity, see 20. USE OF FUEL, COOLANT AND LUBRICANTS
ACCORDING TO AMBIENT TEMPERATURE.
14.1.2 COOLANT
1..1.,..,,.,. A WARN’NG
Keep antlfreeze fluid away from an open flame. Never smoke when
NOTICE
Never use methanol, ethanol or propanol based antifreeze.
Where no permanent antifreeze is available, an ethylene glycol antifreeze
without corrosion inhibitor may be used only for the cold season. In this case,
clean the cooling system twice a year (in spring and autumn). When refilling
the cooling system, add antifreeze in autumn, but do not add any in spring.
Absolutely avoid using any water leak preventing agent irrespective of whether
it is used independently or mixed with an antifreeze. Do not mix one antifreeze
with a different brand. For details of the antifreeze mixture when changing the
coolant, see 20.2.3 ANTIFREEZE. Use a Permanent Antifreeze (ethylene
glycol mixed with corrosion inhibitor, antifoam agent, etc.) meeting the
standard requirements as shown below. With permanent antifreeze, no change
of coolant is required for a year. If it is doubtful that an available antifreeze
meets the standard requirements, ask the supplier of that antifreeze for
information.
Standard requirements for permanent antifreeze.
+ SAE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . J1034
+ FEDERAL STANDARD . . . . . . . . . . . _ . . . . . . . . O-A-548D
2-60