(b)
If applicable, do the steps that follow to install the bracket assembly and bushing to the fuel pump filter-housing: 1) Lubricate the packing (9) with petrolatum. 2) Install the packing (9) to the bushing (11). 3) Lubricate the threads of the bushing (11) with engine oil. 4) Install the bushing (11) in the fuel pump filter-housing.
a) Tighten the bushing (11) to 110-120 pound-inches
(12.4-13.6 newton-meters). 5) Lubricate the threads of the bolt (12) with engine oil. 6) Install the bracket (10) to the plug in the fuel pump
filter-housing with the bolt (12).
a) Tighten the bolt (12) to 85-95 pound-inches (9.6-10.7
newton-meters). 7) Lubricate the threads of the screws (7) with engine oil. 8) Align the boltholes and the contour of the bracket (8) with
the bracket (10). 9) Install the bracket (8) with the screws (7). a) Tighten the screws (7) to 36-40 pound-inches (4.0-4.5 newton-meters).
(c)
Carefully install the fuel temperature probe (6) into the
bracket assembly and the fuel pump filter-housing.
(d)
Lubricate the threads of the bolts (13) with engine oil.
(e)
Install the fuel temperature probe (6) with the bolts (13).
NOTE: The boltholes in the bracket assembly and the fuel
____ temperature probe-flange are offset. If necessary , turn the fuel temperature probe to align the boltholes.
1) Tighten the bolts (13) to 85-95 pound-inches (9.6-10.7 newton-meters).
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(f)
Connect the terminals of the W5 wire harness to the alumel studs (larger studs) and the chromel studs (smaller studs) on the fuel temperature probe (6). 1) Loosely install the nuts.
(g)
Install the clamp, bolt and ground strap loosely to the bracket on the fuel pump filter-housing.
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.
(h)
Tighten the nuts on the alumel studs to 18-22 pound-inches (2.0-2.5 newton-meters).
(i)
Tighten the nuts on the chromel studs to 15-18 pound-inches (1.7-2.0 newton-meters).
(j)
Tighten the bolt which attaches the clamp and the ground strap to the bracket on the fuel pump filter-housing to 36-40 pound-inches (4.1-4.5 newton-meters).
G.
Return the Aircraft to Its Usual Condition.
S 414-044-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.
(1)
Close the right thrust reverser (AMM 78-31-00/201).
S 414-047-N00
(2)
Close the right core cowl panel (AMM 71-11-06/201).
S 414-046-N00
(3)
Close the right fan cowl panel (AMM 71-11-04/201).
S 444-045-N00
(4)
Do the activation procedure for the thrust reverser
(AMM 78-31-00/201).
S 864-017-N00
(5)
For the applicable engine, remove the DO-NOT-CLOSE tags and close
these circuit breakers on the P6 panel:
(a)
6G1 FUEL SHUTOFF VALVE ENG 1
(b)
6G15 SCU ALT PWR ENG 1
(c)
6G23 ENG SCU 1
(d)
6G2 FUEL SHUTOFF VALVE ENG 2
(e)
6G16 SCU ALT PWR ENG 2
(f)
6G24 ENG SCU 2
(g)
6G3 FUEL SHUTOFF VALVE ENG 3
(h)
6G17 SCU ALT PWR ENG 3
(i)
6G25 ENG SCU 3
(j)
6G4 FUEL SHUOFF VALVE ENG 4
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / PW4000 SERIES /747-400 / ENGINES/MAINTENANCE MANUAL ////////////////////////
中国航空网 www.aero.cn
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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(70)
