Morooka MST-800VD, Operation & Maintenance Manual

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[3] BATTERY
• To avoid gas explosions, do not bring fire or sparks near the battery.
• Battery electrolyte is dangerous. If it gets in your eyes or on your skin, wash it off with large amounts of water,
and consult a doctor.
When the ambient temperature drops, the capacity of the battery will also drop. If the battery charge ratio is low, the battery
electrolyte may freeze. Maintain the battery charge as close as possible to 100%, and insulate it against cold temperature so
that the machine can be started easily the next morning.
Measure the specific gravity and calculate the rate of charge from the following conversion table.
Rated of charge (%)
Temp. of battery electrolyte [deg C (deg F)]
20 (68) 0 (32) -10 (14) -20 (-4)
100 1.28 1.29 1.30 1.31
90 1.26 1.27 1.28 1.29
80 1.24 1.25 1.26 1.27
75 1.23 1.24 1.25 1.26
8.2 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.
• 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 concrete or hard ground. If this is impossible, park the machine on wooden boards.
• Open the drain valve and drain any water collected in the fuel system to prevent it from freezing.
• As the battery capacity drops markedly in low temperatures, cover the battery or remove it from the machine, keep it in a
warm place, and install it again the next morning.
• If electrolyte level is found low, add distilled water in the morning before beginning work. Do not add the water after day’s work
so as to prevent fluid in the battery from freezing in the night.
8.3 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 “MAINTENACE 3. USE OF FUEL, COOLANT AND LUBRICANTS ACCORDING TO AMBIENT
TEMPERATURE”.
• 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 system completely, then clean out the inside of the cooling system
thoroughly, and fill with fresh water.