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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
(b)
Remove the screws (1) from the two sides of the strut.
(c)
Install the aft top brackets (10 and 13) on the strut.
1) Tighten the bolts to 160-180 pound-inches (18.1-20.3 newton-meters).
(d)
Install the aft lower brackets (17 and 16) on the strut.
1) Tighten the bolts to 160-180 pound-inches (18.1-20.3 newton-meters).
(e)
Install the aft horizontal bracket (12) on the strut.
1) Tighten the bolts to 160-180 pound-inches (18.1-20.3 newton-meters).
(f)
Install the aft arm assembly (18) on the aft brackets (10 and 17).
WARNING: INSTALL THE LONGEST LENGTH BRACE AND ARM ASSEMBLIES ON THE
_______ OUTBOARD SIDE OF THE STRUT. INSTALL THE SHORTEST LENGTH BRACE AND ARM ASSEMBLIES ON THE INBOARD SIDE OF THE STRUT. IF THE BOOTSTRAP ARMS ARE INCORRECTLY INSTALLED, A BOOTSTRAP FAILURE CAN OCCUR AND CAUSE INJURY TO PERSONS.
(g)
Install the aft arm assembly (15) on the aft brackets (13 and 16).
(h)
Install the aft horizontal brace (11) on the aft horizontal bracket (12) and the aft arm assembly (18).
(i)
Install the aft horizontal brace (14) on the aft horizontal bracket (12) and the aft arm assembly (15).
S 494-038-N00
(3) Install the forward bootstrap components with the steps that follow (Fig. 409):
(a) Put the flange protector (6A) on the fitting on the forward face of the engine mount strut.
NOTE: The flange protector goes into two holes at the top of
____
the fitting.
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////////////////////////A / PW4000 SERIES /747-400 / ENGINES /MAINTENANCE MANUAL ////////////////////////
SEE G
6. FORWARD OUTBOARD
1. AFT LOADCELL SEE A
ARM
5. FORWARD 2. 3-TON HOIST INBOARD (2 LOCATIONS)ARM
A
SEE F
3. CABLE
B
4. SHEAVE (3 LOCATIONS)
A
INBD
B
TRANSPORTATION STAND
SEE D (2 LOCATIONS)
SEE E SEE C (2 LOCATIONS)
SEE B
FORWARD UPPER ENGINE MOUNT
6A. FLANGE PROTECTOR
5. FORWARD 7. FORWARD
INBOARD UPPER SUPPORT ARM
8.
FORWARD LOWER SUPPORT
9.
COUPLING ROD (2 LOCATIONS)
6. FORWARD OUTBOARD ARM
7A. CLAMPS
(BEHIND
UPPER SUPPORT)
(2 LOCATIONS)
A
Bootstrap Equipment and Cradle Installation Figure 409 (Sheet 1)
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13. INBOARD
SHACKLE
10. FORWARD LOADCELL 1
(2 LOCATIONS)
11. 6-TON HOIST
(2 LOCATIONS)
12. OUTBOARD
SHACKLE
INBD
B 15. PIN
(2 LOCATIONS)
17. WASHER
(4 LOCATIONS) ENGINE FLANGES
ENGINE FAN CASE 16. SAFETY PIN
(2 LOCATIONS)
14. AFT HANDLING
ADAPTER
20. BOLT
(4 LOCATIONS)
19. FORWARD
HANDLING
ADAPTER
23. NUT
(2 LOCATIONS)
18. PIN 22. WASHER
(2 LOCATIONS)
21. LATCH
(2 LOCATIONS)
CRADLE
CRADLE
C D
1 GAGE FACING AFT
Bootstrap Equipment and Cradle Installation Figure 409 (Sheet 2)
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