747-400 AMM 飞机维护手册 TOWING AND TAXIING(26)

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 clearance from all ground equipment and other structures. 5) Make sure that the tires are in a satisfactory condition.
 CAUTION: DO NOT TAXI THE AIRPLANE WITH A SHOCK STRUT FULLY
_______ COMPRESSED. YOU CAN CAUSE DAMAGE TO THE SHOCK STRUT IF YOU TAXI THE AIRPLANE WHEN IT IS FULLY COMPRESSED.
 6)  Make sure that the chrome surface of the inner cylinder on all of the gears show a minimum of two inches.
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747-400
MAINTENANCE MANUAL

VISUAL ANGLE IN HORIZONTAL PLANE
THROUGH PILOT'S EYE POSITION

Visibility From Cockpit In Static Position
Figure 204 (Sheet 1)

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MAINTENANCE MANUAL

 

VISUAL ANGLES IN PLANE PERPENDICULAR
TO LONGITUDINAL AXIS THROUGH PILOT'S
EYE POSITION
VISUAL ANGLES THROUGH WINDSHIELD. VISUAL ANGLES THROUGH SIDE WINDOW. VISUAL ANGLES FROM NORMAL POSITION. VISUAL ANGLES FROM ALERT POSITION.
HEAD MOVED OUTBOARD 5 IN. (0.127 M) VISUAL ANGLES FWITH HEAD MOVED 7 IN.
(0.178 M) OUTBOARD
HEAD IS ROTATED ABOUT A POINT 3 IN.

(0.084 M) AFT OF PILOT'S EYE POSITION

Visibility From Cockpit In Static Condition
Figure 204 (Sheet 2)

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MAINTENANCE MANUAL

 CAUTION:_______ DO NOT LET THE NOSE GEAR SHOCK STRUT EXTEND MORE THAN
 THE MAXIMUM PERMITTED NOSE GEAR SHOCK STRUT EXTENSION
 OF 18 INCHES.  EXTENSION MORE THAN 18 INCHES CAN
 CAUSE THE CENTERING CAM TO ENGAGE AND CAUSE DAMAGE TO
 THE SHOCK STRUT DURING A TURN.
 IF IS ALSO POSSIBLE THE AFT CG LIMITS WILL BE MORE
 THAN THE APPROVED LIMIT.  THIS CAN CAUSE THE TAIL OF

 THE AIRPLANE TO MOVE DOWN.
 7)  Make sure that the chrome surface of the inner cylinder of the nose landing gear shows no more than 18 inches.
 8)  Make sure the steering bypass pin is removed.
 9)  Make sure the torsion links of the nose landing gear are connected.
 (b)  
Adjust the flight compartment seats to give the conditions that follow: 1) To give the correct view from the flight compartment

 windows. 2) To give the correct position to operate the rudder and brake pedals.

 (c)  
Make sure that all airplane systems are prepared to have electrical power safely put on the airplane. 1) Supply the necessary electrical power to the airplane to

 start the engine and taxi (Ref 24-22-00/201).
 CAUTION: THERE MUST BE A MINIMUM OF 300 GALLONS OF FUEL IN EACH
_______ NO. 1 AND NO. 4 MAIN FUEL TANKS AND 805 GALLONS IN EACH NO. 2 AND NO. 3 MAIN FUEL TANKS. THIS IS NECESSARY TO DECREASE THE TEMPERATURE OF THE HYDRAULIC FLUID. IF THERE IS NOT SUFFICIENT FUEL IN THE TANKS, THE HYDRAULIC FLUID CAN GET TOO HOT.
 (d)  Make sure that the fuel quantity indication on the main EICAS display shows fuel in the tanks as follows: 1) 375 gallons (2400 pounds/1090 kilograms) in the No. 1 and
 No. 4 main fuel tanks
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