OPERATION COLD WEATHER OPERATION COLD WEATHER OPERATION 0. COLD WEATHER OPERATION INFORMATION 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 viscosity, see "LUBRI- CANTS, FUEL AND COOLANT SPECIFICATIONS ( 4-8 )". Cooling System Coolant 0. 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. Never use methanol, ethanol, or propanol-based antifreeze. Never use any water-leakage prevention agent or any antifreeze containing such an agent. Do not mix different types of antifreeze. For details of the antifreeze mixture when changing the coolant, see "Cooling System Coolant - Clean/Change ( 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. 3-91 WARNING NOTICE