GENERAL PRECAUTIONS SAFETY WARNING: For reasons of safety, always follow these safety precautions.. MACHINES EQUIPPED WITH ACCUMULATORS On machines equipped with an accumulator, for a short time after the engine is stopped, the work equipment will lower under its own weight when the work equipment control lever is shifted to LOWER. After the engine is stopped, set the safety lock lever to the lock position and also lock the attachment pedal with the lock pin. When releasing the pressure inside the work equipment circuit on machines equipped with an accumulator, follow the procedure given in the inspection and maintenance section.
Method of releasing pressure see “ACCUMULATOR HANDLING” on page 100. The accumulator is filled with high-pressure nitrogen gas, and it is extremely dangerous if it is handled in the wrong way. Always observe the following precautions. Never puncture the accumulator or expose it to flame or fire. Do not weld any boss to the accumulator. When carrying out disassembly or maintenance of the accu- mulator, or when disposing of the accumulator, it is necessary to release the gas from the accumulator. A special air bleed valve is necessary for this operation, so please contact your Komatsu distributor. Gas in accumulator see “ACCUMULATOR HANDLING” on page 100.
AE305780 VENTILATION FOR ENCLOSED AREAS Exhaust fumes from the engine can kill. If it is necessary to start the engine within an enclosed area, or you handle fuel, flushing oil, or paint, 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 ade- quate ventilation, set up fans. A0055060 PRECAUTIONS WITH CAB GLASS If by mistake the cab glass on the work equipment side should crack, there is danger of direct contact between the operator’s body and the work equipment. This is extremely dangerous. If the glass is cracked, stop operations immediately and replace the glass. 24 Lock Free AB30576C