(c)
With the torque wrench and adapter, tighten the vertical tension bolts (12) for the aft engine mounts to 3060-3740 pound-inches (346-423 newton-meters). 1) Make sure all of the threads in the nut are engaged. 2) Make sure all of the chamfer on the end of the bolt comes
out of the nut.
S 424-099-N00
(5) Use the control box to lower the PT90-E and the power plant until the load distribution display is almost zero.
NOTE: When the wing and strut hold the weight of the power plant,
____
you can pull the attach pins from the power plant.
S 094-100-N00
(6)
Remove the aft top pins at the aft top attach points on the cradle.
S 094-101-N00
(7)
Remove the pin at the aft lower attach point.
S 424-102-N00
(8)
Use the control box to lower the hoist and the cradle and lift the ground pad.
(a) Lower the hoist and the cradle and adjust the transverse,
axial, and roll directions to zero.
(9)
Put the brake lever in the not locked position.
S 094-104-N00
(10)
Carefully move the hoist and the cradle to the rear and remove them from the area.
(11)
Remove the forward cradle adapters from the power plant.
S 094-103-N00
S 094-105-N00
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71-00-02
ALL ú ú N08 Page 480H ú Jun 18/99
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
TASK 71-00-02-424-125-N00
8. Install the Power Plant With the Crane and Overhead Sling (Fig. 411B)
______________________________________________________________________
A. Special Tools and Equipment
(1)
A71006-79 Cradle
(2)
A71006-60 Aft Adapter
(Part of A71006-79 - Cradle)
(3)
A71006-77 Forward Adapter
(Part of A71006-79 - Cradle)
(4)
110059-501 Transportation Stand, Stang Hydronics, Inc
(5)
A71003-40 Torque Equipment - Engine Mount
(6)
G71027 Propulsion Pod Overhead Sling (preferred)
(7)
9OHME65B00713 Propulsion Pod Overhead Sling (alternate)
(8)
Model AP, Dynamometer - 0 to 30,000 pound capacity, W.C. Dillon Company, Inc., Van Nuys, California (not required if crane incorporates and adjustable load limiter or if a precision load positioner is used)
B.
Standard Tools and Equipment
(1)
Protection Pads
(2)
Tag Lines
C.
References
(1)
AMM 54-51-03/601, Spring Beam
(2)
AMM 70-23-00/201, Tightening Techniques and Torque Values
(3)
AMM 70-31-01/201, Fluorescent Penetrant Inspection
(4)
AMM 71-11-04/201, Fan Cowl Panels
(5)
AMM 71-11-06/201, Core Cowl Panels
(6)
AMM 71-21-00/601, Engine Mounts
(7)
AMM 78-31-00/201, Thrust Reverser Systems
(8)
AMM 78-31-01/401, Thrust Reverser Removal/Installation
D.
Access
(1)
Location Zone
412 Engine 1
422 Engine 2
432 Engine 3
442 Engine 4
E.
Prepare for the Installation of the Power Plant
S 864-133-N00
(1)
Make sure the airplane is in the configuration from the Prepare for the Power Plant Removal procedure.
S 234-135-N00
(2)
Get new vertical tension bolts (1, 2, and 12) or ones which are examined as follows (Fig. 411):
(a)
Do a fluorescent penetrant inspection of the vertical tension bolts (1, 2, and 12) (AMM 70-31-01/201).
(b)
Examine the threads of the vertical tension bolts (1, 2, and 12) to make sure you can apply a satisfactory locking torque when used with a satisfactory nut.
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本文链接地址：747-400 AMM 飞机维护手册 动力装置 POWER PLANT 2(19)
