DETAILED CONTROLS AND GAUGES OPERATION Swing Lock Monitor This monitor (2) informs the operator that the swing lock is being actuated. Actuated: Lights up When the swing lock switch is turned ON (ACTUATED), the monitor lamp lights up. When the swing holding brake relase switch is turned on, this monitor lamp flashes. REMARK The swing motor is equipped with a disc brake that mechani- cally stops the rotation. When the swing lock monitor lamp is lighted up, the brake remains applied. Gauges and Meter 3 Engine Coolant Temperature Gauge This gauge (3) indicates the engine cooling water temperature. If the temperatuer is normal during operation, the green range will light up.
If the red range lights up during operation, the overheat prevention system will be actuated. The overheat prevention system acts as follows. Red range (A) lights up: Engine water temperature monitor lamp (C) flashes. Red range (B) lights up: Engine speed drops to low idling, engine water temperature monitor lamp (C) flashes, and alarm buzzer sounds at same time. The overheat prevention system works until the temperature enters the green range. When red range (A) has lighted up, if the fuel control dial is set to low idling after the engine water temperature drops, the dis- play is canceled. (a): Red range (b): Green range (c): White range 3-12