Komatsu PW160-7K Series, Operation And Maintenance Manual

Page: 208 / 358

COLD WEATHER OPERATION OPERATION
208
PRECAUTIONS AFTER COMPLETION OF WORK
WARNING
After completion of operations, fill the fuel tank to prevent
the formation of water caused by condensation of moisture
in the empty space in the tank when the temperature goes
down.
To prevent mud, water, or the undercarriage from freezing and
making it impossible for the machine to move the following morn-
ing, always observe the following precautions.
●
Mud and water on the machine body should be completely
removed. This is to prevent damage to the seal caused by
mud or dirt getting inside the seal with frozen drops of water.
●
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.
●
Open the drain valve and drain any water collected in the fuel
system to prevent it from freezing.
●
After operation in water or mud, remove water from undercar-
riage to extend undercarriage service life.
AFTER COLD WEATHER
When season changes and the weather becomes warmer, do as
follows.
●
Replace the fuel and oil for all parts with oil of the viscosity
specified.
For details, see "USE FUEL, COOLANT AND LUBRI-
CANTS ACCORDING TO AMBIENT TEMPERATURE
(234)"
●
If for any reason permanent antifreeze cannot be used, and
an ethyl glycol base antifreeze (winter, one season type) is
used instead, or if no antifreeze is used, drain the cooling sys-
tem completely, then clean out the inside of the cooling sys-
tem thoroughly, and fill with fresh water.