(d)
Install the concave end of the adapter (6) into the main gearbox housing. 1) Tighten the adapter (6) to 95-100 pound-inches (10.7-11.3
newton-meters). 2) Safety the adapter (6) to the main gearbox housing with lockwire or safety cable and safety cable ferrule.
(e)
Lubricate the threads of the oil temperature probe (7) with engine oil.
(f)
Install the oil temperature probe (7) into the adapter (6) in the main gearbox housing.
(g)
Turn the oil temperature probe (7) to align the studs with the W3 wire harness terminals.
NOTE: Do not install the clamp, ground strap, and bolt to the
____ pressure tube for the main gearbox at this time.
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
73-21-10
ALL ú ú N02 Page 405 ú Jun 10/97
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / PW4000 SERIES /747-400 / ENGINES/MAINTENANCE MANUAL ////////////////////////
(h)
Install the W3 wire harness terminals to the studs on the oil temperature probe (7) and loosely install the nuts (3, 9) and washers (4, 8).
(i)
Loosely install the clamp, ground strap and bolt to the pressure tube for the main gearbox.
CAUTION: MAKE SURE THE STUD BOX OF THE OIL TEMPERATURE PROBE DOES
_______ NOT TURN WHEN THE COUPLING NUT IS TIGHTENED. IF THE STUD BOX TURNS, DAMAGE TO THE W3 WIRE HARNESS CAN OCCUR.
CAUTION: DO NOT ALIGN THE STUD BOX OF THE OIL 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.
(j) Hold the stud box aligned with the W3 wire harness and tighten the coupling nut of the oil temperature probe (7) to 95-100 pound-inches (10.7-11.3 newton-meters).
CAUTION: TOO MUCH TORQUE (MORE THAN THE MAXIMUM TORQUE) ON THE NUTS
_______ THAT CONNECT THE W3 WIRE HARNESS TO THE OIL TEMPERATURE PROBE, CAN LOOSEN OR DAMAGE THE STUDS OF THE OIL TEMPERATURE PROBE.
(k)
Tighten the alumel nuts (3) (larger terminal studs) to 18-22 pound-inches (2.0-2.5 newton-meters).
(l)
Tighten the chromel nuts (9) (smaller terminal studs) to 15-18 pound-inches (1.7-2.0 newton-meters).
(m)
Safety the coupling nut of the oil temperature probe (7) to the adapter (6) with lockwire or safety cable and safety cable ferrule.
(n)
Tighten the bolt, that attaches the clamp and the ground strap to the pressure tube for the main gearbox, to 36-40 pound-inches (4.1-4.5 newton-meters).
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
73-21-10
ALL ú ú N02 Page 406 ú Jun 10/97
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
G. Return the Aircraft to Its Usual Condition.
S 614-013-N00
(1)
Do the oil servicing procedure for the engine (AMM 12-13-03/301).
S 864-018-N00
(2)
For the applicable engine, remove the DO-NOT-CLOSE tags and close these circuit breakers as follows:
(a)
P6 Main Power Distribution Panel
1) 6G15 SCU ALT PWR ENG 1
2) 6G23 ENG SCU 1
3) 6G16 SCU ALT PWR ENG 2
4) 6G24 ENG SCU 2
5) 6G17 SCU ALT PWR ENG 3
6) 6G25 ENG SCU 3
7) 6G18 SCU ALT PWR ENG 4
8) 6G26 ENG SCU 4
S 414-053-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 COULD OCCUR.
(3)
Close the left thrust reverser (AMM 78-31-00/201).
S 414-033-N00
(4)
Close the left core cowl panel (AMM 71-11-06/201).
S 414-034-N00
(5)
Close the left fan cowl panel (AMM 71-11-04/201).
S 444-035-N00
(6)
Do the activation procedure for the thrust reverser
(AMM 78-31-00/201).
S 714-054-N00
(7) 中國航空網 www.k6050.com 航空翻譯 www.aviation.cn 本文鏈接地址：747-400 AMM 飛機維護手冊 發動機燃油和控制 2(73)
