Komatsu — 11.1 MACHINE MONITOR

11. EXPLANATION OF COMPONENTS 4. ENGINE OIL LEVEL CAUTION PILOT LAMP This warns the operator that the level of the oil in the engine oil pan has dropped. When carrying out checks before starting: If the oil level in the engine oil pan is low, the caution pilot lamp and central CHECK lamp will flash. If the monitor lamps flash, check the oil level in the engine oil pan and add oil. When operating: Even if the engine oil level caution pilot lamp is flashing during check before starting, it will go out when the engine is started. 5. BRAKE OIL PRESSURE CAUTION PILOT LAMP This warns the operator that the brake oil pressure has dropped. When carrying out checks before starting:

When the engine is stopped, the brake oil pressure circuit is not actuated, so the caution pilot lamp and central CHECK lamp are also off. When operating: If the brake oil pressure goes down, the caution pilot lamp and central CAUTION lamp will flash, and the alarm buzzer will sound intermittently. If the monitor lamps flash, stop the engine immedi- ately and check the brake oil pressure circuit. REMARK The monitor lamp may flash and go out after approx. 10 seconds immediately after the engine is started. This is because pressure is being stored in the brake accumulator. It does not indicate any abnormality. 6.

ENGINE OIL PRESSURE CAUTION PILOT LAMP This warns the operator that the engine lubricating oil pressure has dropped. If it flashes, stop the engine and check. Check before starting: Lights up Engine started or running: When the engine is started, the lubrica- tion pressure is formed and the lamps go out. If the engine lubrication pressure drops, the warning pilot lamp and cen- tral CAUTION lamp will flash, and the buzzer will sound intermittently. 2-8