Komatsu — 8.2 During Maintenance

8. PRECAUTIONS FOR MAINTENANCE WARNING: Failure to follow these safety precautions may lead to a serious accident. MAINTENANCE WITH CHASSIS RAISED When carrying out operations with the work equipment or chassis raised, lock the front and rear frames with the safety bar, return the control levers to HOLD, set the control lever safety lock to the LOCK position, and block the work equipment and chassis. Block the wheels on the opposite side before jacking up. Set blocks under the machine after jacking up.

1-27 WORK ON TOP OF MACHINE ‡ When carrying out maintenance on top of the machine, make sure that the footholds are clean and free of obstructions, and follow the precautions below to prevent yourself from falling. • Do not spill oil or grease. • Do not leave tools lying around. • Mind your step when you are walking. ‡ Never jump down from the machine. When getting on or off the machine, always use the steps and handrails, and maintain three-point contact (both feet and one hand or both hands and one foot) at all times. ‡ Use protective equipment if necessary. ‡ The top of the hood is slippery, so it is dangerous. Never stand on top of the engine hood.

MAINTENANCE WITH ENGINE RUNNING To prevent injury, do not carry out maintenance with the engine running. If maintenance must be carried out with the engine running, carry out the operation with at least two workers and do as follows. ‡ One worker must always sit in the operator’s seat and be ready to stop the engine at any time. All workers must maintain contact with the other workers. ‡ When carrying out operations near rotating parts, there is danger of being caught in the parts, so be extremely careful. ‡ When cleaning inside the radiator, set safety lock lever 1 to the LOCK position to prevent the work equipment from moving. In addition, lock parking brake pedal 2.

‡ Do not touch any control levers. If any control lever must be operated, always give a signal to the other workers to warn them to move to a safe place. ‡ Never touch the fan blade or fan belt with any tool or any part of your body. There is danger of serious injury. A0063830