07-11-02
ALL ú ú 01 Page 209 ú Sep 28/99
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
757 MAINTENANCE MANUAL
JACKING AIRPLANE AXLES - MAINTENANCE PRACTICES
______________________________________________
1. General_______
A. This section gives instructions to lift the airplane at the axles. The airplane has five axle jack points. Two axle jack points are on each main landing gear. One axle jack point is on the nose landing gear. The pads of the axle jack point are part of the landing gear.
B. Figure 201 shows the 757-200 Axle Jacking System Specifications.
C. You can lift the airplane at the axle jack points at any aircraft weight up to the maximum taxi weight.
D. Two flat tires on the same axle can prevent the use of approved axle jacks. If this occurs, you can use axle jacking bars to lift the axle sufficiently to install the axle jack.
TASK 07-11-03-582-001
2. Lift the Airplane on Axle Jacks________________________________
A. Equipment
(1) Axle Jacking Bar Set, MLG
B07008-1 (Preferred for all airplanes, required for airplanes with gross weights greater than, or equal to, 251,000 pounds).
B07003-15 (Preferred for all airplanes, required for airplanes with gross weights greater than, or equal to, 251,000 pounds)
B07003-1,-13 (Optional for all airplanes except airplanes with gross weights greater than, or equal to, 251,000 pounds)
(2) Axle Jacking Bar Set, NLG
B07004-12 (Preferred)
B07004-1 (0ptional)
NOTE: B07004-12 required for airplanes with
____ gross weights greater than, or equal to, 251,000 pounds.
(3) Wheel Chocks
B. References
(1)
AMM 12-15-01/301, Main Gear Shock Strut
(2)
AMM 12-15-02/301, Nose Gear Shock Strut
(3)
AMM 32-00-20/201, Landing Gear Downlocks
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07-11-03
ALL ú ú 02 Page 201 ú May 28/00
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
757
MAINTENANCE MANUAL
AXLE JACKING POINTS FOR THE MAIN LANDING GEAR NOSE LANDING GEAR (LEFT SHOWN - RIGHT EQUIVALENT)
POINT JACKING JACK SPECIFICATIONS
LOAD (POUNDS) MAXIMUM 4 JACK HEIGHT (INCHES) FITTING ADAPTER
ROLL-UNDER 8EXTENDED
MAIN GEAR AXLE 2 3 1 58,000 51,500 54,400 6.9 5 916.0 NONE
11.0 6
4.9 7
NOSE GEAR AXLE 33,200 6.5 5 15.35 NONE
10.3 6
4.5 7
MAXIMUM AIRPLANE JACKING WEIGHT: 221,000 POUNDS MAXIMUM AIRPLANE JACKING WEIGHT: 241,000 POUNDS MAXIMUM AIRPLANE JACKING WEIGHT: 251,000 POUNDS INCLUDES A 35 KNOT WIND LOAD WITH FLAT TIRES TIRES CORRECTLY INFLATED WHEELS ON THE RIMS EXTENDED HEIGHT PERMITS A 2-INCH GROUND CLEARANCE
_______CAUTION: WHEN JACKING ONE AXLE ONLY, DO NOT JACK THE AXLE
MORE THAN 11 INCHES HIGHER THAN OTHER AXLE. THIS
WILL PREVENT DAMAGE TO THE TRUCK POSITIONER ACTUATOR.
757-200
Airplane Axle Jacking
Figure 201
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07-11-03
ALL ú
ú 01 Page 202
ú May 28/99
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
757 MAINTENANCE MANUAL
(4) AMM 32-42-06/401, Antiskid Transducer
C. Prepare to Lift the Airplane on Axle Jacks
S 492-002
(1)
Make sure that the landing gear downlocks are installed
(AMM 32-00-20/201).
S 862-004
(2) 中国航空网 www.aero.cn 航空翻译 www.aviation.cn 本文链接地址：757 AMM 飞机维护手册 LIFTING & SHORING(9)
