OPERATION COLD WEATHER OPERATION
3-107
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 fol-
lows.
FUEL AND LUBRACANTS
Change to fuel and oil with low viscosity for all components. For details of the specified viscosity, see "USE OF
FUEL, COOLANT AND LUBRICANTS ACCORDING TO AMBIENT TEMPERATURE (PAGE 4-12)".
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 quantities of fresh water and see a doctor at once.
● Antifreeze is toxic. Be extremely careful when handling it. When replacing coolant containing anti-
freeze or when handling coolant when repairing the radiator, contact your Komatsu distributor or ask
your local antifreeze dealer. Be careful not to let the water flow into drainage ditches or spray 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.
For details of the antifreeze mixture when changing the coolant, see "CLEAN INSIDE OF COOLING SYSTEM
(PAGE 4-25)".
Use a Permanent Antifreeze (ethylene glycol mixed with corrosion inhibitor, antifoam agent, etc.) meeting the stan-
dard 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 infor-
mation.
Standard requirements for permanent antifreeze
● SAE J1034
● FEDERAL STANDARD O-A-548D
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