.
OPERATION
COLD WEATHER OPERATION
COLD WEATHER OPERATION
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.
FUEL AND LUBRICANTS
Change to fuel and oil with low viscosity for all components. For details of the specified visicosity, see "USE OF
FUEL, COOLANT AND LUBRICANTS ACCORDING TO AMBIENT TEMPERATURE (PAGE 4-8)".
COOLANT
WARNING
Antifreeze is toxic. Be careful not to get it into your eyes or on your skin. If it should get into your eyes or on your skin, wash
it off with large amounts of fresh water and see a doctor at once.
When changing the coolant or when handling coolant containing antifreeze that has been drained when repairing the radiator,
please contact your Komatsu distributor. Antifreeze is toxic, so do not let it flow into drainage ditches or spray it on to the
ground surface.
Antifreeze is flammable, so do not bring any flame close. Do not smoke when handling antifreeze.
NOTICE
Never use methanol, ethanol or propanol based antifreeze.
Avoid using any leak-preventing agent, regardless if it is sold separately or in antifreeze.
Do not mix one brand of antifreeze with a different brand.
For details on the amount of antifreeze mixture and on when to change the coolant, see "CLEAN INSIDE OF
COOLING SYSTEM (PAGE 4-23)".
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
REMARK
In areas where permanent antifreeze is not available, it is possible to use antifreeze whose main component is
ethylene glycol and does not contain any corrosion inhibitor. (Such antifreeze can be used for the winter season
only.) However, in such a case, the coolant must be changed twice a year (spring and fall), so use permanent
antifreeze when possible.
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