11. EXPLANATION OF COMPONENTS 11.1.4 D: METER DISPLAY PORTION 2. SWING LOCK MONITOR This 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 lock override switch is turned on, this monitor lamp flashes. 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. PC450-ENG 2-9 PILOT DISPLAY When the starting switch is ON, the pilot display lights up when the display items are functioning. 1.
ENGINE PRE-HEATING MONITOR This monitor lamp indicates the pre-heating time required when start- ing the engine at an ambient temperature below 0oC. The monitor lamp lights when the starting switch is turned to HEAT position and flashes after about 30 seconds to show that the pre-heating is completed. (The monitor lamp will go off after about 10 seconds.) s ON, the pilot display lights up when the ONITOR the pre-heating time required when start- mperature below 0oC.