29 EXCAVATOR OPERATION Oil Change in the Run-in Stage The lubrication oil plays a specifi c and important role during the run-in phase of the excavator. The numerous movable parts are not yet run-in, so many fi ne metal particles are generated and cause damage and shorten the lifetime of many components. Pay attention to the oil-change intervals and complete them sooner than later. See the subject "REGULAR CHECKS AND MAINTENANCE WORK" for more details on the oil-change intervals. CONTROL OBSERVATIONS DURING OPERATION Stop the Engine immediately if: Sudden increase or decrease in engine rpm's occurs. Sudden abnormal noises occur. Exhaust gases turn suddenly very dark.
Make following control observations during operation to be sure that everything functions normally. Seat Belt 3 WARNING To avoid personal injury or death: Always use the seat belt with a ROPS/FOPS protection structure. Adjust the seat to the optimal position and buckle up. RUNNING-IN OF THE NEW EXCAVATOR The operation and care of the new excavator infl uences its life span. Your new excavator has been carefully checked and tested before leaving the factory. In spite of this, all movable components must run-in during the fi rst 50 work hours. Do not work with full engine rpm's and full loads during this period.
It is most important to run-in your excavator properly in order to achieve its full performance and longevity. During the running-in, the following points should be adhered to in all cases. Do not Work with Full Engine Rpm's or Full Loads during the First 50 Working Hours Let the engine warm up suffi ciently in the cold season. Do not let the engine rev-up more than necessary. (1) Seat belt STARTING 3 CAUTION To avoid personal injury: No persons, other than those familiar with the excavator, are allowed to use the excavator. Do not allow any person other than the operator to ride on the excavator.