Komatsu WA500-6H, Operation & Maintenance Manual

Page: 234 / 412

3.5 Cold weather operation Operation
3-168
WA500-6H – VEAM430100
3.5.2 Precautions after completion of 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.
z Remove all the mud and water from the machine body. In
particular, wipe the hydraulic cylinder rod clean to prevent
damage to the seal caused by mud or dirt on the rod surface
getting inside the seal together with drops of water.
z
Park the machine on hard, dry ground.
If this is impossible, park the machine on wooden boards.
The boards help protect the wheels from being frozen in soil
and the machine can start next morning.
z
Open the drain valve and drain any water collected in the
fuel system to prevent it from freezing.
z
Fill the fuel tank to the full in order to prevent moisture from
forming dew in the tank room, as the ambient temperature
goes down.
3.5.3 After cold weather
When season changes and the weather becomes warmer, do as
follows.
z
Replace the fuel and oil for all parts with oil of the viscosity
specified.
For details, see "Fuel, coolant and lubricants (4-13)".