OPERATION MACHINE OPERATIONS AND CONTROLS 4. The buzzer will sound for approx. 1 sec, and the following monitors and gauges will light up for approx. 3 sec. q Engine oil temperature monitor (3) q Charge level monitor (4) q Fuel level monitor (5) q Engine coolant temperature monitor (6) q Engine oil pressure monitor (7) q Engine coolant temperature gauge (8) q Fuel gauge (9) q Pre-heating monitor (10) q Air cleaner clogging monitor (11) q Swing lock monitor (12) q Engine oil support monitor (13) If the monitors or gauges do not light up or the buzzer does not sound, there is probably a blown bulb or discon- nection, so please contact your Komatsu distributor for repair. After approx.
3 seconds, the following monitors and gauges will stay lighted up; the other monitors and gauges will go out. q Charge level monitor (4) q Engine oil pressure monitor (7) q Engine coolant temperature gauge (8) q Fuel gauge (9) 3-71