Basic Troubleshooting; The Battery; Servicing The Battery; Removal And Installation - Komatsu WB140-2N Operation & Maintenance Manual

OPERATION

BASIC TROUBLESHOOTING

Always contact your Komatsu Dealer when you have to carry out any troubleshooting procedures. If the problem or failure is
not listed in the troubleshooting section, contact your Komatsu Dealer immediately and have them check the problem.

THE BATTERY

When checking or handling the batteries, stop the engine and turn the ignition switch to the OFF position
before making repairs. Before starting the engine, use a damp cloth to wipe off the dust accumulated on
the top surface of the battery. The battery generates hydrogen gas, there is danger of explosion. Do not
bring lighted cigarettes near the battery or do anything that will cause sparks. Battery electrolyte is dilute
sulfuric acid and it will attack your clothes and skin. If it gets on your clothes or on your skin, wash it off
immediately with large quantities of water. If it gets in your eyes, flush your eyes with large quantities of
fresh water and consult a doctor immediately. When handling batteries, always wear protective goggles
and rubber gloves.

SERVICING THE BATTERY

If battery tops are badly corroded, clean with diluted baking soda and
warm water solution. Before charging or servicing the battery, discon-
nect the cable from the negative terminal of the battery. The unusually
high voltage will damage the alternator. While charging the battery to
avoid gas explosions, cover the battery caps with rags soaked in a bak-
ing soda solution. If electrolyte temperatures exceeds 45°C, stop charg-
ing for a while. Turn off the charger as soon as the battery is charged.
Overcharging the battery may cause overheating, decreasing the quan-
tity of electrolyte or damaging the electrode plates. When adding fluids
to the battery use distilled non-mineral based water and do not over fill
the battery. Always ware protective clothing when servicing the battery.

REMOVAL AND INSTALLATION

When removing the battery, first disconnect the cable from the ground, negative terminal. If a tool touches a cable connecting
the positive terminal and the chassis, there is danger of sparks being emitted. When installing the battery, the ground cable
should be connected to the ground terminal as the last step. the illustration below shows the proper removal and installation
order.
2-56 WB140-2N, WB150-2N