Pilot’s Manual
PM-126A II-1
Engines........................................................................................................ 2-1
Fuel Control Logic Diagram (Figure 2-1) ........................................... 2-2
Engine Fuel and Control System............................................................. 2-3
Thrust Levers.......................................................................................... 2-3
Engine-Driven Fuel Pump.................................................................... 2-4
Hydromechanical Fuel Control Unit .................................................. 2-4
Digital Electronic Engine Control (DEEC) ......................................... 2-5
Automatic Performance Reserve (APR).......................................... 2-7
Engine Synchronizer.......................................................................... 2-7
ENG CMPTR Switches ...................................................................... 2-8
Surge Bleed Control ........................................................................... 2-9
Fuel Heater /Oil Cooler........................................................................ 2-9
Engine Oil System ................................................................................... 2-10
Engine Oil System Schematic (Figure 2-2) ...................................... 2-11
Engine Ignition and Start Systems........................................................ 2-13
Ignition System .................................................................................... 2-13
IGN Switches .................................................................................... 2-13
IGN Indications ................................................................................ 2-13
Engine Start System............................................................................. 2-14
Start Switches.................................................................................... 2-14
Start Indications................................................................................ 2-14
Engine Indicating (EI) ............................................................................. 2-15
Engine Vibration Monitor................................................................... 2-15
Oil Temperature Indicator .................................................................. 2-15
Oil Pressure Indicator.......................................................................... 2-16
Fuel Flow Indicator.............................................................................. 2-16
N1 Indicators......................................................................................... 2-16
N2 Indicators......................................................................................... 2-17
ITT Indicators ....................................................................................... 2-17
Engine Diagnostic System (EDS) .......................................................... 2-19
EDS Record Switch .............................................................................. 2-19
Engine Fire Detection System................................................................ 2-20
SYS Test/Reset Switch ..................................................................... 2-21
Fire Detection Function ................................................................... 2-21
SECTION II
ENGINES & FUEL
TABLE OF CONTENTS
Pilot’s Manual
II-2 PM-126A
TABLE OF CONTENTS (Cont)
Engine Fire Extinguishing System........................................................ 2-22
L and R Engine Fire and Extinguisher #1/#2 Switches ................ 2-23
Fire Extinguisher Discharge Indicators ............................................ 2-23
Fire Extinguishing System (Figure 2-3) ........................................... 2-24
Thrust Reversers ..................................................................................... 2-25
Thrust Reverser Levers....................................................................... 2-26
Thrust Reverser Indications............................................................... 2-27
Thrust Reverser System Schematic (Figure 2-4) ............................ 2-28
Aircraft Fuel System ............................................................................... 2-29
Wing Tanks ........................................................................................... 2-29
Fuselage Tank....................................................................................... 2-29
Fuel Flow Indicating System ............................................................. 2-30
　
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