Hitachi ZW180 Operator's Manual page 316

MAINTENANCE UNDER SPECIAL ENVIRONMENTAL CONDITIONS
Precautions for maintenance during cold weath-
er season
Before the atmospheric temperature becomes down below -0°
C, practice the following points.
• Water and oil in the machine will freeze.
• Road surfaces will freeze so that tires may slip.
Keeping the above points in mind, follow the advices below:
1. Refill fluids such as water and lubricants prior to opera-
tion. Avoid practices after operation (except fuel).
2. Mix LLC in the radiator (coolant). When this machine is
shipped from the factory, LLC (long life coolant) is sup-
plied. Therefore, this machine can operate normally with-
out any problem.
3. Change the engine oil in the engine crankcase for a cold
weather type oil.
4. Use fuel (diesel oil) of an antifreeze type. To prevent con-
densation of air into dew on the wall in the fuel tank, fully
refill the fuel tank with an antifreeze type diesel fuel.
5. If the electrolyte in the battery case freezes, damage to
the battery case may result. Maintain the batteries at fully
charged condition. After completing work, turn all lights
OFF. Perform cooling operation for five minutes. Or by
other way, dismount the batteries and store them in a
warm indoor place. When it is possible to measure and
adjust the specific gravity of the electrolyte, increase the
specific gravity of the electrolyte up to 1.280. Do not in-
crease more than 1.280.
After taking measures and arrangement mentioned above,
start operating the machine.
6. After preheating the engine, start the engine. Sufficiently
perform warm-up operation.
WARNING: Sufficiently ventilate when carrying out
warming up operation indoor. Failure to do so may
cause intoxication by exhaust gas, possibly resulting
in personal death accident.
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