PRECAUTIONS TO BE TAKEN DURING MAINTENANCE 2.8.18 HYDRAULIC ACCUMULATOR The hydraulic accumulator contains pressurized nitrogen. When carrying out any operation on the accumulator, proceed with the utmost care, in order to avoid explosions and consequently serious injury and even death. For this reason, keep to the following instructions: q do not remove the accumulator; q do not use sparks or naked flames; q do not make holes in the accumulator, do not weld or use oxyhydrogen flames; q do not hit or press the accumulator; q when disposing of the accumulator, take care to release the gas it contains. Have this operation carried out only by a Komatsu Dealer.
2.8.19 COOLING FAN AND FAN BELT q Be careful to the revolving parts and do not allow anyone to get too close to these components, since clothes or parts of the body may get caught into them. q If hands, clothes, or tools become entangled in the fan blades or the fan belt, they may be cut off, torn or seriously injured/ damaged; for this reason, avoid touching any revolving part. RWA01660 2.8.20 WASTE MATERIALS q Do not dispose of used oil in the sewer system, rivers, etc. q Always put used oil in containers. Do not drain used oil directly on the ground.
q Keep to the laws and regulations in force when disposing of harmful substances such as oil, fuel, solvents, used filters, gaskets, electric wires and batteries. WARNING q Oils, filters, coolant, gaskets, electric wires and batteries are considered special waste and must be collected and disposed of according to the regulations in force. RWA01670 q The combustible material of some components may become extremely dangerous if it burns. For this reason, avoid any contact of burnt material with your skin or eyes and do not inhale the fumes produced. 59