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Partial Secondary Engine Indications Partial secondary engine indications can display when the secondary engine display is not selected. 1 N2 Displays if an operating limit reached. 2 OIL P, OIL T, OIL Q Displays if: • a caution range or operating limit reached • oil differential exceeded • oil quantity low 86 86 86 86 9 9 OIL OIL OIL V B Q T N2 BB 2 2 P I N 1 1 1 1 17 1 7 1 2 2 98 8 8 98 FAN LPT 2 2 2 2 96 96 962 96 1 0 1 SECONDARY EICAS DISPLAY 3 1 2 December 01, 1999 747 Operations Manual Copyright © The Boeing Company. See title page for details. 7.11.8 D6-30151-425 Engines, APU - Secondary Engine Indications 3 VIB Displays if a display indicator reached. December 01, 1999 747 Operations Manual Engines, APU Chapter 7 Compact Engine Indications Section 12 Copyright © The Boeing Company. See title page for details. D6-30151-425 7.12.1 Compact Engine Indications Compact engine indications display when only oneCRT is available for EICAS. Compact Engine Display 1 Compact Engine Indications Displayed continuously: • N1 • EGT Displayed when selected by secondary engine display switch, or in flight if a Fuel Control switch is moved to CUTOFF: • N2 • FF • OILP PRIMARY EICAS DISPLAY 86 86 86 9 86 9 9 9 5 2 AT - C CRZ N1 EGT T N2 FF VIB B OIL P OIL OIL T 12 12 Q 12 12 FAN17 LPT1 7 1 4 662 662 662 662 8 8 8 8 1 1 1 B 9 9 9 9 9 9 95 95 9 9 9 9 2 2 2 2 2 2 2 2 2 2 2 5 5 5 5 5 6 6 6 6 3 3 3 3 N20 3 3 3 3 1 2 December 01, 1999 747 Operations Manual Copyright © The Boeing Company. See title page for details. 7.12.2 D6-30151-425 Engines, APU - Compact Engine Indications • OILT • OILQ • VIB 2 Partial Compact Engine Indications N2, or OIL P, OIL T, OIL Q, or VIB display if: • a secondary engine parameter exceedance occurs when secondary engine indications are not selected, or • a secondary EICAS display other than secondary engine is selected when partial secondary engine indications are displayed on secondary EICAS Compact Start Indications 1 EGT Start Limit Displays red. 2 Crossbleed Start Displays magenta. 3 Fuel-on Indicator Displays magenta. 0 0 5 1 44 44 44 989 989 989 57 XB FF N2 714 714 EGT 714 750 15 1 2 3 PRIMARY EICAS DISPLAY December 01, 1999 747 Operations Manual Engines, APU Chapter 7 Engine Controls Section 13 Copyright © The Boeing Company. See title page for details. D6-30151-425 7.13.1 Engine Controls Thrust Levers 1 Reverse Thrust Levers Control engine reverse thrust. Reverse thrust can only be selected when Forward Thrust levers are closed. Actuates automatic speedbrakes (refer to Chapter 9, Flight Controls). 2 Forward Thrust Levers Controls engine forward thrust. Thrust levers can only be advanced when Reverse Thrust levers are down. CONTROL STAND 1 2 December 01, 1999 747 Operations Manual Copyright © The Boeing Company. See title page for details. 7.13.2 D6-30151-425 Engines, APU - Engine Controls Fuel Control Switches 1 FUEL CONTROL Switches RUN (Autostart switch ON) – • opens spar fuel valve • opens engine fuel valve • EEC sequences start valve, fuel metering valve, and igniter operation RUN (Autostart switch OFF) – • opens spar fuel valve • opens engine fuel valve • energizes igniter(s) CUTOFF – • closesfuelvalves • removes igniter power • commands related hydraulic demand pump to operate when Demand Pump selector in AUTO • unlocks Engine Fire switch CONTROL STAND FUEL CONTROL 2 RUN CUTOFF 3 4 RUN CUTOFF 1 1 December 01, 1999 747 Operations Manual Engines, APU - Engine Controls Copyright © The Boeing Company. See title page for details. D6-30151-425 7.13.3 Engine Start Panel 1 Engine START Switches www.aero.cn 航空翻译 www.aviation.cn 本文链接地址：波音747-441操作手册2
