(a)
Find the solenoid for the 2.9 bleed valve at the 5 o'clock position on the intermediate case.
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73-21-07
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
(b)
Remove the protective covers for the electrical connector.
(c)
Connect the W5P11 connector to the solenoid for the 2.9 bleed valve.
NOTE: You can use the torque adapter (PWA 85749) to tighten
____
the W5P11 connector.
S 424-155-N00
(6)
Connect the W5P7 connector to the actuator for the variable stator vanes as follows (AMM 70-24-05/201):
(a)
Find the actuator for the variable stator vanes at the 4 o'clock position.
(b)
Remove the protective covers from the electrical connector.
(c)
Connect the W5P7 connector to the top connector on the actuator for the variable stator vanes.
S 424-154-N00
(7)
Connect the W5P6 connector to the EEC alternator as follows (AMM 70-24-05/201):
(a)
Find the EEC alternator on the bottom side of the gearbox at the 7 o'clock position.
(b)
Remove the protective covers from the electrical connector.
(c)
Connect the W5P6 connector to the lower connector of the EEC alternator.
NOTE: You can use the torque adapter (PWA 85749) to tighten
____
the W5P6 connector.
S 424-153-N00
(8)
Connect the W5P5 connector to the bypass valve solenoid for the fuel/oil cooler as follows (AMM 70-24-05/201):
(a)
Find the bypass valve solenoid for the fuel/oil cooler at the 8 o'clock position.
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73-21-07
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / PW4000 SERIES /747-400 / ENGINES/MAINTENANCE MANUAL ////////////////////////
(b)
Remove the protective covers for the electrical connectors.
(c)
Connect the W5P5 connector to the aft connector on the bypass valve solenoid for the fuel/oil cooler.
G.
ENGINES POST-PW-SB 73-84; Connect the thermocouples:
S 424-152-N00
(1)
Install the wire harness to the T2.95 thermocouple probe as follows:
(a)
Attach the harness with the two nuts.
(b)
Tighten the larger nut to 18-22 pound-inches (2.034-2.486 newton-meters).
(c)
Tighten the smaller nut to 15-18 pound-inches (1.695-2.034 newton-meters).
S 424-151-N00
(2)
Install the wire harness to the thermocouple probes W5P8 and W5P13 as follows:
(a)
Install the wiring harness terminals to the thermocouple studs and loosely install the nuts to the thermocouple studs.
CAUTION: MAKE SURE THE THERMOCOUPLE STUD BOX DOES NOT TURN WHEN THE
_______ COUPLING NUT IS TIGHTENED. IF THE THERMOCOUPLE STUD BOX TURNS, DAMAGE TO THE WIRING HARNESS CAN OCCUR.
(b)
If it is necessary to align the thermocouple stud box, loosen the coupling nut.
(c)
Align the thermocouple stud box with the wiring harness connector.
(d)
Hold the thermocouple stud box and tighten the coupling nut for the thermocouple probe to 95-100 pound-inches (10.734-11.298 newton-meters).
(e)
Do not let the thermocouple stud turn.
CAUTION: DO NOT ALIGN THE THERMOCOUPLE STUD BOX AFTER THE COUPLING
_______ NUT IS TIGHTENED. HOLD THE THERMOCOUPLE STUD BOX AND LOOSEN THE COUPLING NUT TO ALIGN THE THERMOCOUPLE STUD BOX AGAIN. DAMAGE TO THE THERMOCOUPLE STUD BOX CAN OCCUR.
(f) Make sure the thermocouple stud box is aligned.
CAUTION: TOO MUCH TORQUE (MORE THAN THE MAXIMUM TORQUE) ON THE
_______ THERMOCOUPLE PROBE NUTS CAN LOOSEN. IF TOO MUCH TORQUE IS APPLIED, DAMAGE TO THE THERMOCOUPLE STUDS CAN OCCUR.
(g)
Tighten the alumel nuts (larger terminal studs) to 18-22 pound-inches (2.034-2.486 newton-meters).
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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(57)
