WARNING: Failure to follow these safety precautions may lead to a serious accident. 6. GENERAL PRECAUTIONS PRECAUTIONS WHEN HANDLING ACCUMULATOR If the travel damper switch is turned ON when the machine is traveling or when the work equipment is raised, the hydraulic accumulator in the travel damper will instantaneously be connected with the lift cylinder bottom circuit. Be careful when doing this, because the oil will then flow in or out in the direction to balance the oil pressure at the accumulator and lift cylinder bottom, so the work equipment will move.
When releasing the pressure or charging with gas for the work equipment circuit of machines equipped with an accumulator, be careful to follow the instructions given for handling the accumulator. The accumulator is charged with high-pressure nitrogen gas, which is extremely dangerous, so read the following items and be careful to handle the accumulator properly. Do not make any hole or bring any flame or heat close to the accumulator. Do not weld any boss to the accumulator. The gas must be released before disposing of the accumulator, so please ask your Komatsu distributor to do this.
1-7 VENTILATION FOR ENCLOSED AREAS ‡ If it is necessary to start the engine or if you handle fuel, flushing oil, or paint within an enclosed area or poorly venti- lated area, open the doors and windows to ensure that you provide adequate ventilation to prevent gas poisoning. ‡ If opening the doors and windows still does not provide ad- equate ventilation, set up fans. A0055060