Operation
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4.4 Precautions for running in cold environments
Lubricating oil: Choose lubricating oil of different viscosities depending on the seasons.
Coolant: Add antifreeze additive into the cooling system and choose the coolant of differ-
ent grades depending on the ambient temperature.
Start: The auxiliary starter can be adopted if necessary in winter. After starting the engine,
only operate the engine with load when the oil pressure and water temperature are nor-
mal.
Before the cold season begins, be sure to check the electrolyte liquid level, viscosity and
battery voltage. If the engine is not going to be operated for a long time under very low
temperatures, the battery should be removed and stored in a warmer room.
Shut-off engine: When shutting off the engine in a cold climate, unload the engine first and
then run the engine at idling speed for 3 to 5 minutes. And then stop the engine after the
water and oil temperatures decrease. The coolant with antifreeze additives should not be
drained out after shutdown. Otherwise, open the drain valve or plug on the engine body,
oil cooler, radiator and water inlet pipe to drain the coolant completely to prevent the
engine from being frost cracked.