S 034-008
(8)
Remove the bolts (44) and the nuts (42) from the retaining
clamps (clamps) (43).
NOTE: The clamps hold the electrical harness to the servo fuel
____
return tube (14).
S 034-009
(9) To disconnect the oil-in tube (11), remove the three bolts (13) that hold the oil-in adapter (10) to the heat exchanger (23).
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747-400 MAINTENANCE MANUAL
S 034-010
(10) To remove the valve drain tube, disconnect the tube coupling nuts on the drain tube (9) and drain the manifold.
NOTE: Hold the coupling with a wrench while you loosen the
____
coupling nut.
S 034-011
(11) To remove the servo fuel supply tube (18), disconnect the tube coupling nut on the servo fuel supply tube (18).
NOTE: Hold the coupling with a wrench while you loosen the
____
coupling nut.
S 034-012
(12) To remove the servo fuel return tube (14), disconnect the tube coupling nut on the servo fuel return tube (14).
NOTE: Hold the coupling with a wrench while you loosen the
____
coupling nut.
S 034-013
(13)
Do these steps to remove the oil-out tube (21):
(a)
Remove the tube coupling nut adjacent to the swivel collar (20) on the oil-out tube (21).
(b)
Remove the three bolts (19) that hold the tube swivel
collar (20) to the heat exchanger (23).
(c)
Remove the oil-out tube (21).
S 034-075
(14)
ENGINES WITHOUT SB PW4ENG 79-60; Do these steps:
(a)
Remove the four outboard bolts (4) and washers (3).
(b)
Loosen the four inboard bolts (4) as follows: 1) Remove the four outboard bolts and washers that attach the valve inlet collars to the rear of the intermediate case.
2) Use PWA 85853 Torque Adapter to loosen the four inboard bolts and washers that attach the valve inlet collars to the rear of the intermediate case. Do not remove the inboard bolts and washers from the intermediate case.
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747-400 MAINTENANCE MANUAL
S 034-076
(15)
ENGINES WITH SB PW4ENG 79-60; Do these steps:
(a)
Remove the four outboard bolt and washer assemblies.
(b)
Loosen the four inboard bolt and washer assemblies from the valve inlet collars as follows: 1) Remove the four outboard bolt and washer assemblies that
attach the valve inlet collars to the rear of the intermediate case.
2) Use PWA 85853 Torque Adapter to loosen the four inboard bolt and washer assemblies that attach the valve inlet collars to the rear of the intermediate case. Do not remove the inboard bolt and washer assemblies from the intermediate case.
NOTE: The washers are a captive part of the washer
____
and bolt assembly.
NOTE: Do not remove the bolts. The inlet collar has slots
____ on the inboard side to make the removal of the heat exchanger and the valve easier.
S 034-016
(16) Remove the two bolts (4) and the washers (3) that hold the valve bracket to the intermediate case.
NOTE: The bolts (4) are found on the forward side of the valve.
____
S 034-017
(17)
Remove the four bolts (1 and 2) that hold the lower bracket (7) to the heat exchanger (23) and to the lower mounting bracket on the intermediate case.
(a)
Remove the bracket.
S 034-018
(18)
Remove the four bolts (1 and 2) that hold the (upper) bracket (24) to the heat exchanger (23) and to the top mounting bracket on the intermediate case.
(a)
Remove the bracket.
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本文链接地址：747-400 AMM 飞机维护手册 ELECTRICAL POWER 电源 1(53)
