2) Attach the tube clamps (66, 75) for the pneumatic tubes to the bracket (7) with the bolts (68, 77) and washers (67, 76). a) Tighten the bolts (68, 77).
3) Attach the tube clamp (72) on the air vent tube for the diffuser seal to the bracket (8) with the bolt (73) and nut (74). a) Tighten the nut (74).
(o)
Lubricate the new packing (20) with the petroleum jelly.
(p)
Install the new packing (20) to the groove on each of the three fuel injectors (5).
(q)
Lubricate the new packings (3) with the petroleum jelly.
(r)
Install the new packings (3) on each end of the transfer tube (2).
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(s)
Install the transfer tube (2) in the supply tube (1).
(t)
Connect the fuel manifold (4) to the fuel injectors (5).
NOTE: You will tighten the fuel manifold nuts after you do the
____ leak check of the fuel manifold.
1) Lubricate the threads of the fuel injectors (5) with engine
oil. 2) Connect the fuel manifold (4) to the fuel injectors (5). 3) Tighten the fuel manifold nuts (4) with your hand.
(u) Connect the supply tube (1) to the fuel manifold (4).
NOTE: You will tighten the supply tube nut after you do the
____ leak check of the fuel manifold.
1) Lubricate the threads of the fuel manifold inlet (4) with
engine oil. 2) Connect the fuel supply tube (1) to the fuel manifold (4). 3) Tighten the supply tube nut (1) with your hand.
S 794-324-N00
(2) Do this task, which is found at the end of this section: "Fuel Manifolds Leak Check"
NOTE: After you do the leak check of the fuel manifold, you must
____
install all remaining parts you removed.
S 414-275-N00
(3)
Install the No. 4 turbine-vane cooling-air duct (AMM 75-24-02/401) if it was removed.
H.
Return the Aircraft to its Usual Condition
S 864-276-N00
(1)
For the applicable engine, remove the DO-NOT-CLOSE tag and close this circuit breaker:
(a)
P6 Main Power Distribution Panel
1) 6L10 FUEL CONT VALVE ENG 1
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////////////////////////A / PW4000 SERIES /747-400 / ENGINES/MAINTENANCE MANUAL ////////////////////////
2) 6L11 FUEL CONT VALVE ENG 2
3) 6L12 FUEL CONT VALVE ENG 3
4) 6L13 FUEL CONT VALVE ENG 4
S 864-277-N00
(2)
For the applicable engine, remove the DO-NOT-CLOSE tags and close these circuit breakers:
(a)
P6 Main Power Distribution Panel
1) 6F1 IGN 1 ENG 1
2) 6F2 IGN 1 ENG 2
3) 6F3 IGN 1 ENG 3
4) 6F4 IGN 1 ENG 4
5) 6K19 IGN 2 ENG 1
6) 6K20 IGN 2 ENG 2
7) 6K21 IGN 2 ENG 3
8) 6K22 IGN 2 ENG 4
9) 6G19 STBY IGN ENG 1
10) 6G20 STBY IGN ENG 2
11) 6G21 STBY IGN ENG 3
12) 6G22 STBY IGN ENG 4
S 414-422-N00
WARNING: OBEY THE INSTRUCTIONS IN AMM 78-31-00/201 WHEN YOU CLOSE THE
_______ THRUST REVERSERS. IF YOU DO NOT OBEY THE INSTRUCTIONS, INJURIES TO PERSONS OR DAMAGE TO EQUIPMENT CAN OCCUR.
(3)
Close the left thrust reverser (AMM 78-31-00/201).
(4)
Close the left core cowl panel (AMM 71-11-06/201).
(5)
Close the left fan cowl panel (AMM 71-11-04/201).
S 414-423-N00
S 414-424-N00
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本文链接地址：747-400 AMM 飞机维护手册 发动机燃油和控制 1(82)
