COLD WEATHER OPERATION OPERATION
3-122
COLD WEATHER OPERATION 0.
PRECAUTIONS FOR LOW TEMPERATURE 0.
If the temperature becomes low, it becomes difficult to start the engine, and the coolant may freeze, so do as fol-
lows.
FUEL AND LUBRICANTS 0.
Change to fuel and oil with low viscosity for all components. For details of the specified visicosity, see “LUBRI-
CANTS AND OPERATING MEANS ( 4-8 )“.
COOLANT 0.
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.
! Absolutely avoid using any water leak preventing agent irrespective of weather it is used indepen-
dently 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 “CLEAN INSIDE OF COOLING SYSTEM ( 4-
21 )“.
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
REMARK
In areas where permanent antifreeze is not available, it is possible to use antifreeze whose main compo-
nent 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 cooling water must be changed twice a year (spring and
fall), so use permanent antifreeze as far as possible.
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