07-11-21
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
S 862-005
CAUTION: DO NOT LIFT THE AIRPLANE ON JACKS AT JACK POINT D IN WINDS MORE
_______ THAN 35 KNOTS. IF YOU DO NOT OBEY THESE INSTRUCTIONS, DAMAGE TO THE AIRPLANE CAN OCCUR.
(4) Make sure the airplane is turned into the wind if it is possible, when it is out of the hangar.
NOTE: There is no wind restriction when you lift the airplane at
____
Jack Point E with axle jacks.
S 492-006
(5)
Install the nose jack pad adapter at jack position D (AMM 07-11-11/201).
S 862-007
(6)
Retract the airstairs.
S 862-009
CAUTION: BE CAREFUL TO MAKE THE JACK CENTERED BELOW THE JACK PAD AND THE
_______ AIRPLANE LEVEL ON THE GROUND. IF THE JACK DOES NOT GO INTO THE CENTER OF THE JACK PAD DURING JACKING, IT CAN CAUSE DAMAGE TO THE AIRPLANE OR THE JACK.
CAUTION: DO NOT DEFLATE THE SHOCK STRUTS IF YOU DO A GEAR RETRACTION
_______ TEST. THE SHOCK STRUTS MUST BE FILLED CORRECTLY AND NOT INFLATED ABOVE THE CORRECT PRESSURE. DAMAGE TO THE WHEEL WELL AND THE SHOCK STRUT WILL OCCUR.
(7) Put the nose jack below the jack point D.
NOTE: The jack must be turned such that a line between the aft two
____ footpads is perpendicular to the airplane centerline. The jack must also be centered below the jack pad.
The jack must have a pressure gage and a conversion table to give the pounds of load at each jack point.
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
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737-300/400/500MAINTENANCE MANUAL
(8) S 862-010Release the airplane brakes.
(9) S 862-011Move the forward chocks on the main landing gear forward approximately 2 inches from the tires.
S 092-012
(10) Remove the chocks from the nose wheels.
S 862-023
WARNING: YOU MUST MAKE SURE THAT ALL PERSONS ARE AWAY FROM THE LEADING
_______ EDGE SLATS. THEY CAN MOVE AUTOMATICALLY (UNLESS OTHERWISE INHIBITED) DURING MAINTENANCE WHEN THESE CONDITIONS OCCUR: EITHER HYDRUALIC SYSTEM HAS PRESSURE AND THE TRAILING EDGE FLAPS ARE IN POSITION 1, 2, OR 5, AND THE NOSE OR THE MAIN LANDING GEAR AIR/GROUND RELAYS GIVE AN IN FLIGHT CONDITION.
CAUTION: YOU MUST NOT PERMIT THE WEIGHT ON THE JACK POINT TO BE MORE
_______ THAN THE APPROVED LIMIT. IF YOU DO NOT OBEY THESE INSTRUCTIONS, YOU CAN CAUSE DAMAGE TO THE AIRPLANE STRUCTURE.
CAUTION: WHEN YOU LIFT OR LOWER THE JACK, DO NOT PERMIT MORE THAN ONE
_______ INCH CLEARANCE BETWEEN THE JACK RAM LOCKNUT AND THE COLLAR. TOO MUCH CLEARANCE CAN CAUSE DAMAGE TO THE AIRPLANE STRUCTURE IF THERE IS A FAILURE OF THE JACK.
(11) Lift the airplane on the nose jack.
NOTE: Keep a distance of one inch or less between the jack ram
____ locknut and the jack collar.
To permit a retraction test of the nose landing gear, lift the nose until there is approximately three inches between the nose wheels and the ground.
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A 737-300/400/500MAINTENANCE MANUAL
S 862-013
(12) Screw down the jack ram locknut and tighten the setscrew when the nose gear clears the ground by the necessary distance.
TASK 07-11-21-582-021
3. Lower the Airplane off the Jacks
________________________________
A. References
(1)
AMM 07-11-11/201, Jack Airplane
(2)
AMM 12-15-41/301, Nose Landing Gear Shock Strut
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本文链接地址：737-300 400 500 AMM 飞机维护手册 LIFTING AND SHORING(7)
