|
曝光台 注意防骗 网曝天猫店富美金盛家居专营店坑蒙拐骗欺诈消费者
ACMPs 1B and 2B are powered from AC bus 3 and AC bus 2, respectively. Both pumps are controlled by separate toggle switches on the flight compartment HYDRAULIC control panel. Refer to External and APU Electrical Pump operation in this Chapter for external/APU ground services. Filter manifold The filter manifold for system 1 is located on the left side of the aft equipment bay and on the right side for system 2. Each hydraulic system accommodates pressure, return and case drain (pump lubrication fluid) filters and a system pressure relief valve. They also contain filter “pop-up” indicators to show when the filters are clogged. Two pressure switches and a transducer are part of the pressure manifold and are used to provide EICAS displays for pump failures and loss of system pressure. Fluid quantity and temperature transducers are located on the reservoir and are indicated on the HYDRAULIC synoptic page. HYDRAULIC SHUTOFF VALVE CONTROL PANEL Two switches are provided on the HYDRAULIC shutoff valve panel to isolate the applicable shutoff valve in the event of a hydraulic overtemperature. These switches should not be selected closed with the engine running except for isolation in the event of system overtemp. The engine driven pump will cavitate and greatly reduce the efficiency and life of the pump. Controls the operation of the hydraulic shut-off valve in the following condition: CLOSED . When the switch is selected it isolates the hydraulic fluid to the CLOSED |
