SAFETY MEASURES DURING MAINTENANCE 11. SAFETY MEASURES DURING MAINTENANCE 11.1 PERSONNEL Do not service or repair the machine unless you are an appropri- ately qualified technician or have been appropriately instructed by a qualified technician. 11.2 PRIOR TO START OF MAINTE- NANCE MEASURES 11.2.1 WARNING SIGN While the machine is being serviced, the engine must not be started and the control elements must not be actuated without prior agreement, since this could cause accidents with serious injury. Always attach the warning sign to the control lever for the work hydraulic system to warn other persons that work is being per- formed on the machine.
If required, put up additional warning signs around the machine. You may purchase these warning signs from your Komatsu deal- er. 11.2.2 TOOLS Only use tools which are suitable for the task you want to carry out. If you use damaged or makeshift tools or tools which are of inferior quality, injuries may occur. 11.2.3 SAFETY-RELATED PARTS The quality of these parts is subject to normal wear and tear. For this reason, replace safety-related parts by new ones at regular intervals, regardless of whether they are defective or not. Safety-related parts are: Fuel system: fuel hose, overflow hose, and tank cap Hydraulic system:
all hydraulic hoses Immediately replace defective parts, even if the interval for replacement has not elapsed. Replace hydraulic hoses every 6 years. 36 75_060GB