C.
References
(1)
AMM 71-11-04/201, Fan Cowl Panels
(2)
AMM 78-31-00/201, Thrust Reverser System
(3)
AIPC 54-51-01, Fig. 11
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(4)
AIPC 54-51-09, Fig. 1
(5)
AIPC 71-21-01, Fig. 1
D.
Access
(1)
Location Zone
412 Engine 1
422 Engine 2
432 Engine 3
442 Engine 4
E.
Procedure
S 494-012-N00
(1) Install the aft bootstrap components on the outboard struts with the steps that follow (Fig. 408):
(a)
Put the protection pads on the turbine exhaust sleeve (one on each side).
(b)
Remove the screws (1) from the two sides of the strut.
(c)
Install the aft top brackets (3) on the strut.
1) Tighten the bolts to 1440-1920 pound-inches (162.7-216.9 newton-meters).
(d)
Install the aft lower brackets (8 and 9) on the strut.
1) Tighten the bolts to 160-180 pound-inches (18.1-20.3 newton-meters).
(e)
Install the aft horizontal bracket (5) on the strut.
1) Tighten the bolts to 160-180 pound-inches (18.1-20.3 newton-meters).
(f)
Install the aft arm assembly (2) on the aft brackets (3 and 9).
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 (7) on the aft brackets (3 and 8).
(h)
Install the aft horizontal brace (4) on the aft horizontal bracket (5) and the aft arm assembly (2).
(i)
Install the aft horizontal brace (6) on the aft horizontal bracket (5) and the aft arm assembly (7).
S 494-056-N00
(2) Install the aft bootstrap components on the inboard struts with the steps that follow (Fig. 407):
(a) Put the protection pads on the turbine exhaust sleeve (one on each side).
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////////////////////////A / PW4000 SERIES /747-400 / ENGINES /MAINTENANCE MANUAL ////////////////////////
1. SCREW 1. SCREW
1. SCREW STRUT STRUT 1. SCREW
RIGHT SIDE
BAft Bootstrap Equipment Installation Figure 408 (Sheet 1)
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3. AFT UPPER
Aft Bootstrap Equipment Installation
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////////////////////////A / PW4000 SERIES /747-400 / ENGINES /MAINTENANCE MANUAL ////////////////////////
12. AFT HORIZONTAL BRACKET (2 LOCATIONS)
OUTBD
INBOARD STRUT
Aft Bootstrap Equipment Installation
Figure 408 (Sheet 3)
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