07-11-04
ALL ú ú 01 Page 205 ú Jun 10/97
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 747-400 MAINTENANCE MANUAL
(3) S 582-014Lower the auxiliary jacks at the jack points IV, V, VII, and VIII.
(4) S 092-015Remove the jack adapters at the jack points IV thru VIII (Fig. 201).
(5) S 582-016Lower the primary jacks at the jack points I, II, and III (Ref 07-11-01/201).
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
07-11-04
ALL ú ú 01 Page 206 ú Jun 10/97
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
SUPPORT AIRPLANE WITH ENGINES REMOVED - MAINTENANCE PRACTICES
_____________________________________________________________
1. General
_______
A. This procedure contains one task. This task is to hold the airplane with the engines removed.
B. This procedure contains this information to use when you remove the engines:
(1)
The center of gravity limitations
(2)
The airplane weight and ballast.
C. You can remove or install the engines when the airplane is on jacks when certain conditions are met. These conditions are:
(1) All the equipment is installed on the airplane.
NOTE: It is not necessary to have the crew, payload, or fuel on the
____
airplane.
(2) The airplane is to the limitations and necessary ballast shown in this procedure.
TASK 07-11-05-202-001
2. Hold Airplane with Engines Removed
__________________________________
A. References
(1) 07-11-07/201, Jacking an Asymmetric Airplane
B. Procedure
S 582-002
(1)
Make sure the airplane has supports at primary jack points I, II and III (Fig. 201).
S 582-003
(2)
Make sure the inboard wing stabilizing jack points IV and V have a load of 10,000 pounds (4500 kg) (Fig. 201).
NOTE: The stabilizing jack load of 10,000 pounds (4500 kg) at jack
____ points IV and V is for the SYMMETRICAL condition only. If the airplane is in an ASYMMETRIC condition, you must use the procedure in 07-11-07/201.
S 582-004
(3)
Make sure the nose jack point VI has a load of 1000 pounds (450 kg) (Fig. 201).
S 582-005
(4)
Make sure the airplane gross weight is between 300,000 to 474,000 pounds (136,000 to 215,000 kg) and that the CG is in the allowable limits (14 to 33 percent MAC) (Fig. 202).
(5)
Make sure the roll angle is not more than | 3 degrees.
S 582-006
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
07-11-05
ALL ú ú 01 Page 201 ú Jun 10/97
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL
STABILIZING WING TIP JACK VII - LEFT VIII - RIGHT
I
II
III
IV
V
VI
VII
VIII
STABILIZING WING JACK IV - LEFT V - RIGHT
JACKING POINTS
LEFT BODY RIGHT BODY TAIL (AFT FUSELAGE) LEFT WING RIGHT WING NOSE LEFT OUTBD WING RIGHT OUTBD WING
STABILIZING NOSE
PRIMARY TAIL JACK POINT
JACK POINT III PRIMARY BODY JACK POINTS CONTROL VI (JACK NOT SHOWN)
I - LEFT II - RIGHT
LOCATION (BODY STA AND BUTTOCK LINE)
STA 993.0 WBL 127.5 STA 993.0 WBL 127.5 STA 2596.0 RBL 30 STA 1516.0 WBL 583 STA 1516.0 WBL 583 STA 400.0 RBL 60 STA 1681.5 WBL 932.6 STA 1681.5 WBL 932.6
NOTE: RBL = RIGHT BUTTOCK LINE; WBL = WING BUTTOCK LINE
Jack Points Data Figure 201
CONSOLE
(OPTIONAL)
MAX STATIC LOAD IN POUNDS (KG)
200,000 (90,700)
200,000 (90,700) 96,800 (43,900) 30,000 (13,600) 30,000 (13,600) 39,400 (17,800) 25,000 (11,300) 25,000 (11,300)
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
中国航空网 www.aero.cn
航空翻译 www.aviation.cn
本文链接地址：747-400 AMM 飞机维护手册 LIFTING AND SHORING(19)
