Komatsu — 3.3.2 SIDE INSTRUMENTS

INSTRUMENTS AND CONTROLS 4 - HYDRAULIC OIL FILTER CLOGGING WARNING LIGHT It comes on when the hydraulic oil filter is clogged and must be replaced (see "4.8.10.c CHANGING THE HYDRAULIC SYSTEM OIL FILTER"). RWA22340 5 - GENERATOR WARNING LIGHT This warning light comes on, together with the acoustic alarm, when the starting circuit is energized and goes out when the engine exceeds the idling rpm; if this warning light remains on even when the engine is running at the normal operating speed, this means that the alternator is not working and the battery is not charged correctly.

IMPORTANT q If the warning light remains off when the ignition key is turned to position «I», this means that the alternator is faulty or broken. RWA07150 It comes on when the ignition key is turned to position « » for the cold start of the engine (see "3.6.2.2 STARTING WITH COLD ENGINE OR IN COLD CLIMATES"). 6 - GLOW PLUG PREHEATING WARNING LIGHT RWA07160 7 - ENGINE COOLANT TEMPERATURE WARNING LIGHT This warning light comes on, together with the acoustic alarm, when the engine coolant exceeds the maximum temperature allowed; in this case, let the engine idle (approx. 1200 rpm) until it stops. If this inconvenience occurs again, make sure that the radiator is clean. 78