(b)
For the temperature sensor B at the pack 1, Disconnect the electrical connector, DT1612.
(c)
For the temperature sensor A at the pack 2, Disconnect the electrical connector, DT1610.
(d)
For the temperature sensor B at the pack 2, Disconnect the electrical connector, DT1613.
(e)
For the temperature sensor A at the pack 3, Disconnect the electrical connector, DT1611.
(f)
For the temperature sensor B at the pack 3, Disconnect the electrical connector, DT1614.
S 034-006
(2)
Remove the four fasteners from the temperature sensor flange.
S 024-007
(3)
Remove the temperature sensor from the duct.
TASK 21-62-07-404-008
3. Pack Discharge Temperature Sensor Installation (Fig. 401)______________________________________________
A. References
(1)
06-09-03/201, Body Section 44 Access Doors and Panels
(2)
21-51-00/501, Air Conditioning Pack System
(3)
24-22-00/201, Manual Control
(4)
AIPC 21-62-07 Fig. 1
(5)
SSM 21-62-01
B. Access
(1)
Location Zone
133 Air Conditioning Equipment Bay, LH
134 Air Conditioning Equipment Bay, RH
(2)
Access Panels
191H-R Air Conditioning Access Door
191N-L Air Conditioning Access Door
C. Install the Temperature Sensor
S 424-009
(1)
Put the temperature sensor in its position on the duct.
S 434-010
(2)
Install the four fasteners which hold the temperature sensor flange to the duct.
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A
747-400 MAINTENANCE MANUAL
S 434-025
(3)
Tighten the fasteners to a torque value of 12-14 in-lbs.
S 434-011
(4)
Connect the electrical connector to the temperature sensor:
(a)
For the temperature sensor A at the pack 1, Connect the electrical connector, DT1609.
(b)
For the temperature sensor B at the pack 1, Connect the electrical connector, DT1612.
(c)
For the temperature sensor A at the pack 2, Connect the electrical connector, DT1610.
(d)
For the temperature sensor B at the pack 2, Connect the electrical connector, DT1613.
(e)
For the temperature sensor A at the pack 3, Connect the electrical connector, DT1611.
(f)
For the temperature sensor B at the pack 3, Connect the electrical connector, DT1614.
D. Do a Test of the Temperature Sensor
S 864-019
(1)
Supply electrical power (Ref 24-22-00/201).
S 864-020
(2)
Remove the DO-NOT-OPERATE tag from the PACKS switch on the P5 overhead panel.
S 864-012
(3)
Remove the DO-NOT-CLOSE tags and close these circuit breakers:
(a)
P6 Main Power Distribution Panel
1) 6F35, PACK TEMP CONT A
2) 6F36, PACK TEMP CONT B
(b)
P415 Power Distribution Center - Right
1) 415C38, PACK TEMP CONT B
2) 415K27, PACK TEMP CONT A
S 744-021
(4) Do the ground test for the pack temperature controller A if you installed a temperature sensor A (Ref 21-51-00/501).
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ALL ú ú 02 Page 404 ú Feb 18/00
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
S 744-022
(5) Do the ground test for the pack temperature controller B if you installed a temperature sensor B (Ref 21-51-00/501).
E. Put the Airplane Back to Its Usual Condition
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本文链接地址：747-400 AMM 飞机维护手册 空调 AIR CONDITIONING 2(181)
