Cold Weather Operation; Cold Weather Operation Information; Fuel And Lubricants; Cooling System Coolant - Komatsu PC160LC-7KA Operation & Maintenance Manual

COLD WEATHER OPERATION

COLD WEATHER OPERATION

COLD WEATHER OPERATION INFORMATION

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

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

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 amount 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 propane-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 "CLEAN INSIDE OF COOLING SYSTEM ( 4-
23 )".
Use a Permanent Antifreeze (ethylene glycol mixed with corrosion inhibitor, anti foam 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 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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