(2)
AMM 71-11-04/201, Fan Cowl Panels
(3)
AMM 71-11-06/201, Core Cowl Panels
(4)
AMM 78-31-00/201, Thrust Reverser System
E.
Access
(1)
Location Zone 412 Engine 1 - Main Gearbox Fwd Face 4 o'clock 422 Engine 2 - Main Gearbox Fwd Face 4 o'clock 432 Engine 3 - Main Gearbox Fwd Face 4 o'clock 442 Engine 4 - Main Gearbox Fwd Face 4 o'clock
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
(2)
Access Panel
416 Right Thrust Reverser Half - Engine 1
426 Right Thrust Reverser Half - Engine 2
436 Right Thrust Reverser Half - Engine 3
446 Right Thrust Reverser Half - Engine 4
F.
Procedure
S 414-057-N00
(1)
ENGINES PRE-PW-SB 73-161;
Install the EEC fuel temperature thermocouple probe (fuel
temperature probe).
(a)
Remove the protection cap from the fuel pump filter-housing.
(b)
If applicable, do the steps that follow to install the adapter (4): 1) Lubricate the packing (5) with petrolatum. 2) Install the packing (5) to the adapter (4). 3) Lubricate the threads of the adapter (4) with engine oil. 4) Install the concave end of the adapter (4) into the port on
the fuel pump filter-housing. a) Tighten the adapter (4) to 95-100 pound-inches (10.7-11.3 newton-meters). b) Safety the adapter (4) to the housing with lockwire or safety cable and safety cable ferrule.
(c)
Lubricate the threads of the fuel temperature probe (3) with engine oil.
(d)
Install the fuel temperature probe (3) into the adapter (4).
(e)
Turn the fuel temperature probe (3) to align the studs with the W5 wire harness terminals.
(f)
Connect the W5 wire harness terminals to the studs on the fuel temperature probe (3) and loosely install the nuts.
(g)
Loosely install the clamp, bolt and ground strap to the bracket on the fuel pump filter-housing.
CAUTION: MAKE SURE THE STUD BOX OF THE FUEL TEMPERATURE PROBE DOES
_______ NOT TURN WHEN THE COUPLING NUT IS TIGHTENED. IF THE STUD BOX OF THE FUEL TEMPERATURE PROBE TURNS, DAMAGE TO THE W5 WIRE HARNESS CAN OCCUR.
CAUTION: DO NOT ALIGN THE STUD BOX OF THE FUEL TEMPERATURE PROBE
_______ AFTER THE COUPLING NUT IS TIGHTENED. HOLD THE STUD BOX AND LOOSEN THE COUPLING NUT BEFORE YOU ALIGN THE STUD BOX AGAIN. IF YOU DO NOT DO THIS, DAMAGE TO THE STUD BOX CAN OCCUR.
(h) Hold the stud box aligned with the W5 wire harness and tighten the coupling nut of the fuel temperature probe (3) to 95-100 pound-inches (10.7-11.3 newton-meters).
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73-21-09
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / PW4000 SERIES /747-400 / ENGINES/MAINTENANCE MANUAL ////////////////////////
CAUTION:_______DO NOT TIGHTEN THE NUTS TOO MUCH. TOO MUCH TORQUE (MORE THAN THE MAXIMUM TORQUE) ON THE NUTS CAN LOOSEN OR DAMAGE THE STUDS ON THE FUEL TEMPERATURE PROBE.
(i)
Tighten the alumel nuts (larger terminal studs) to 18-22
pound-inches (2.0-2.5 newton-meters).
(j)
Tighten the chromel nuts (smaller terminal studs) to 15-18
pound-inches (1.7-2.0 newton-meters).
(k)
Safety the coupling nut to the adapter (4) with lockwire or
safety cable and safety cable ferrule.
(l)
Tighten the bolt that attaches the clamp and ground strap to
the bracket on the fuel pump filter-housing, to 36-40
pound-inches (4.1-4.5 newton-meters).
S 414-058-N00
(2)
ENGINES POST-PW-SB 73-161; Install the EEC fuel temperature thermocouple probe (fuel temperature probe).
(a)
Remove the protection cap from the fuel pump filter-housing.
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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 2(69)
