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COLD WEATHER OPERATION
COLD WEATHER OPERATION
COLD WEATHER OPERATION INFORMATION
If the ambient temperature becomes low, it becomes difficult to start the engine, and the coolant may freeze.
Follow the instructions described as follows.
FUEL AND LUBRICANTS
Change fuel and oil with ones of low viscosity for all components.
For the details of specified viscosity, see "RECOMMENDED FUEL, COOLANT, AND LUBRICANT (7-6)".
COOLANT
•
Coolant 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 immediately.
•
When handling the cooling water containing coolant that has been drained during changing the
coolant or repair of radiator, contact your Komatsu distributor or request a qualified company to
perform the operation. Coolant is toxic, so never pour it into drainage ditches or drain it onto the
ground surface.
NOTICE
Komatsu recommends the use of Non-Amine Engine Coolant (AF-NAC) as coolant.
Non-Amine Engine Coolant (AF-NAC) is already diluted with distilled water, so it is not flammable.
For details on the coolant change interval and the density of Non-Amine Engine Coolant (AF-NAC), see "METH-
OD FOR CLEANING INSIDE OF COOLING SYSTEM (4-21)".
AdBlue/DEF
NOTICE
•
AdBlue/DEF freezes at –11 °C {12.2 °F} .
If AdBlue/DEF in AdBlue/DEF tank freezes, it may expand and the devices in the tank may be broken
or the parts may be affected. Add AdBlue/DEF to the specified amount for cold weather (below the
level of when AdBlue/DEF may freeze).
For the specified amount of AdBlue/DEF, see "METHOD FOR CHECKING AdBlue/DEF LEVEL, ADD-
ING AdBlue/DEF (3-168)".
•
If AdBlue/DEF or the machine equipped with AdBlue/DEF system cannot be stored at the outside
temperature is lower than –11 °C {12.2 °F} , AdBlue/DEF in the tank may freeze. Ask your Komatsu
distributor for discharging of AdBlue/DEF, and keep it in the condition free from freezing.
3-274
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WARNING
OPERATION
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