Maintenance Instruction
5.10 Fan belt tension adjustment
● Precautions of operation and maintenance of battery
1. The battery shall be kept in dry and clean environment where the temperature is 5～40℃
ventilation.
2. The battery shall be protected away from sunlight and be at least 2m away from heat (heater).
3. The battery shall be protected against rain, dust and foreign matters as well as shirt circuit.
4. The battery shall be not be horizontally or reversed placed and be protected against mechanical impact or great
pressure.
5. The battery shall be fully charged before storage; Low battery is not allowed for storage.
6. The battery shall not be inclined, revered or knocked.
7. Check the voltage every three months. If the voltage is below 12.5V, charge the battery; otherwise it affects the
battery service life.
8. Always check the air hole of battery during the operation or storage of battery to avoid deformation or
explosion.
9. Good ventilation shall be ensured during charge and discharge of the battery; otherwise the acid mist and
flammable gas produced during the charge may hurt the operator and equipment and even cause fire.
10. Always check the color of power densimeter on the battery cover and take proper actions in accordance with
the color.
● Way of charging
The battery can be charged at constant current or constant voltage with limited current. For service-free battery,
the constant voltage with limited current is preferred.
1．Charging at constant current
Charge the battery at 0.1C
20
A (12A) current to 16V and then charge at 0.05C
20
A (6A) current. When the battery
voltage remains unchanged for 1-
2 hours, it means the charging is done (voltage difference less than 0.03V)
3V）; or charge the battery to 16V and then charge at 6A current for 3-5 hours.
2. Charging at constant voltage with limited current
Constant voltage 14.8V～15.5V, maximum current 0.25C
20
A, namely 30 A; if the current is ≤0.5A, charge the
battery for 3 hours; total charging hours shall be not longer than 24.
● Precautions during charging
1．
Positive pole and negative pole of battery shall be connected with the positive pole and negative pole of
charger respectively.
2．The battery shall be horizontally placed and the wire shall be securely connected.
3．The battery shall be not above 45℃
during charging. If the temperature is high, use water or decrease the
current or voltage to reduce the temperature.
4．The charge room shall ensure good ventilation, because it produces flammable hydrogen. If there is 4%--7%
hydrogen in the air, it may cause explosion. Smoking is prohibited in the charge room.
5．Short circuit is not allowed when connecting the wires to charge the battery.
Importance:
The engine life is directly dependent on the correct use of air cleaner to keep it clean
al
ways.During field working, please check, clean and then change oil each shift.If the tractor is equipped with
harvester, it is better to use higher grade of filter.Never use the oil-water to flush dry-type filter element during
maintenance.
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