Komatsu WA70-7, Руководство по эксплуатации и обслуживанию

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3.5 Operation in cold weather Operation
3-106
WA70-7 – VENAM02003
3.5.2 Precautions after work
To prevent mud, water, or the undercarriage from freezing and
making it impossible for the machine to move on the following
morning, always observe the following precautions:

Remove mud and water from the machine body. In particu-
lar, wipe the hydraulic cylinder rods clean to prevent mud
and dirt on the rod surface from entering through the seal
with the water.

Park the machine on solid, dry ground.
If this is impossible, park the machine on wooden boards.
The boards prevent the wheels from freezing to the ground
so the machine will be able to move the next morning.

Open the drain valve and drain any water collected in the
fuel system to prevent it from freezing solid.

Completely fill the fuel tank to prevent moisture from con-
densing inside the tank due to falling ambient temperatures.
3.5.3 After the cold weather period
When season changes and the weather becomes warmer, do as
follows:
Change the fuel. Replace the oil for all components with oil of
the specified viscosity.
For details see 5.4 “Fuel, lubricants, and coolants; quantities”
(5-18).