Safety - Section 20 OM2033 Page 20-8 General Safety PRECAUTIONS FOR MAINTENANCE BEFORE CARRYING OUT MAINTENANCE STOPPING THE ENGINE BEFORE SERVICE When carrying out inspection or maintenance, always stop the machine on firm flat ground, lower the dump body, then stop the engine. WARNING TAG If others start the engine or operate the controls while you are performing service or lubrication, you could suffer serious injury or death. If the engine must be run during service, such as when cleaning the radiator, always set the shift selector lever to the neutral (N) position and the parking brake lever to the PARKING position. Always carry out the work with two people.
One person should sit in the operator's seat so that the engine can be stopped, if necessary. NEVER move any controls not needed for operation. ALWAYS attach the WARNING TAG to the control lever in the operator's cab to alert others that you are working on the machine. Attach additional warning tags around the machine, if necessary. These tags are available from your Komatsu distributor. (Part No. 09963-03000) When servicing the machine, be careful not to touch any moving part or get clothing caught. Put blocks under the wheels.
When carrying out service with the dump body raised, always place the dump lever at the HOLD position, and insert the body-up safety pins (or safety cable, if equipped) securely. PROPER TOOLS DURING MAINTENANCE PERSONNEL Use only tools suited to the task. Using damaged, low quality, faulty, or makeshift tools could cause personal injury. Only authorized personnel can service and repair the machine. Extra precaution should be used when grinding, welding, and using a sledge- hammer. ATTACHMENTS Place attachments that have been removed from the machine in a safe place so that they do not fall. If they fall, serious injury could result.
PERIODIC REPLACEMENT OF CRITICAL PARTS Periodically replace parts used to insure safety or prevent accident. Replace these components periodically with new ones, regardless of whether or not they appear to be defective. These components deteriorate over time. WORK UNDER THE MACHINE Replace or repair any such components if any defect is found, even though they have not reached the time specified. Always lower all movable work equipment to the ground or to their lowest position before performing service or repairs under the machine. Always block the tires of the machine securely. Never work under the machine if the machine is poorly supported.