OPERATION Engine Oil Level Monitor Monitor (2) warns the operator that the oil level in the engine oil pan has dropped. If oil level in the engine oil pan is low, the lamp lights up red, so check the oil level, and add oil. Maintenance Interval Monitor Monitor (3) lights up to warn the operator that the set time has passed since maintenance was last performed. This monitor screen goes out after 30 seconds and returns to the normal operation screen. For details on the method of checking the maintenance interval, see “MAINTENANCE” section. If it is desired to change the maintenance interval settings, have your Komatsu distributor change the interval settings. 2-16 PC350LL-7E0