Komatsu — 16.5 IF BATTERY IS DISCHARGED

16. TROUBLESHOOTING 16.5.1 REMOVING AND INSTALLING BATTERY Before removing the battery, remove the ground cable (normally connected to the negative - terminal). If any tool touches between the positive terminal and the chassis, there is danger of sparks being generated. Loosen the nut of the terminal and remove the wires from the battery. When installing the battery, connected the ground cable last. Insert the hole of the terminal on the battery and tighten the nut. Tightening torque: Tightening battery terminal:

9.8 – 14.7 N·m (1.0 – 1.5 kgf·m, 7.2 – 10.9 lb·ft) 16.5.2 PRECAUTIONS FOR CHARGING BATTERY CHARGING BATTERY WHEN MOUNTED ON MACHINE Before charging, disconnect the cable from the negative - terminal of the battery. Otherwise, an unusually high voltage will damage the alternator. While charging the battery, remove all battery plugs for satisfac- tory ventilation. To avoid gas explosions, do not bring fire or sparks near the battery. If the electrolyte temperature exceeds 45°C, stop charging for a while. Turn off the charging as soon as the battery is charging. Overcharging the battery may cause the following: 1) Overcharging the battery 2) Devreasing the quantity of electrolyte.

3) Damaging the electrode plate. Do not mix the cables (positive + to negative - or negative - to positive + ), as it will damage the alternator. When performing any service to the battery besides checking the electrolyte lever or measuring the specific gravity, disconnect cables from the battery. 2-100