OPERATION EXPLANATION OF COMPONENTS REMARK A disc brake is installed in the swing motor to mechanically stop motor rotation. The brake is always applied while the swing lock is actuated. METERS 3. ENGINE WATER TEMPERATURE GAUGE This gauge indicates the engine cooling water temperature. If the temperature is normal during operation, the green range (A) will light up. If the red range lights (C) up during operation, the overheat pre- vention system will be actuated. The overheat prevention system acts as follows. Red range (1) lights up: Output horsepower drops, and water temperature monitor (3) flashes. When red range (2) lights up:
Engine speed is lowered further to low idling, engine water tem- perature monitor (3) lights up, and alarm buzzer sounds at the same time. The overheat prevention system is actuated until the temperature enters the green range. When red range (2) lights, if the engine water temperature is reduced and the fuel control dial is turned to the low idling posi- tion, the display will be cancelled. 4. FUEL GAUGE This gauge indicates the amount of fuel in the fuel tank. If the fuel level is normal during operation, the green range (2) will light up. If only the red range (1) lights up during operation, there is less than 55 liters (14.5 US gal) of fuel remaining in the tank, so check and add fuel.
1 2 After the starting switch is turned ON, the correct level may not be displayed for a moment, but this does not indicate any abnormal- ity. AW34992C When stopping the engine, turn the starting switch ON and check that the monitor lamps on items A, B, C and D and the meters light up. 63 (A) C (B) 3 AW34991D (A) C (B) 3 AW34991D