21-62-00
ALL ú ú 14 Page 2 ú Nov 15/97
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 737-300/400/500MAINTENANCE MANUAL
CABIN AIR SUPPLY TEMPERATURE BULB
FWD
OVERHEAD DISTRIBUTION DUCT OVERHEAD DISTRIBUTION DUCT
CABIN TEMPERATURE MODULE (P5-17)
Temperature Indicating System - Component Location
Figure 1 (Sheet 2)
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21-62-00
ALL ú
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ú Nov 15/97
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
G95330
A
737-300/400/500MAINTENANCE MANUAL
CABIN AIR SUPPLY TEMPERATURE BULB - REMOVAL/INSTALLATION
________________________________________________________
1. General_______
A. The cabin supply duct temperature bulb is in the overhead distribution manifold. Access to the bulb is through the sculptured ceiling panels.
TASK 21-62-15-004-025
2. Remove the Duct Temperature Bulb (Fig. 401)________________________________
A. References
(1) AMM 25-21-45/401, Sculptured Ceiling Panels
B. Access
(1) Location Zones
107 Forward Half of Cabin
108 Forward Cargo Compartment
210 Air Conditioning Distribution Bay
C. Prepare for the Removal
S 864-001
(1) Open this circuit breaker and attach a DO-NOT-CLOSE tag:
(a) P6-4 Panel
1) 6D2, TEMP IND
S 014-003
(2) Open the overhead ceiling panel (Ref 25-21-45/401).
D. Remove the Duct Temperature Bulb
S 034-007
(1)
Disconnect the electrical connector from the duct temperature bulb.
S 024-008
(2)
Remove the temperature bulb from the duct receptacle and remove the temperature bulb and the O-ring.
TASK 21-62-15-404-026
3. Install the Duct Temperature Bulb (Fig. 401)_________________________________
A. Consumable Materials
(1) D00247 - Antiseize Compound - PWA 586 (AMM 20-30-21/201)
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
B. References
(1)
20-30-21/201, Lubricants
(2)
24-22-00/201, Electrical Power
(3)
25-21-45/401, Sculptured Ceiling Panels
C. Access
(1) Location Zones
107 Forward Half of Cabin
108 Forward Cargo Compartment
210 Air Conditioning Distribution Bay
D. Procedure
S 014-027
(1)
Remove the asbestos gasket on the bulb and replace it with the O-ring.
S 644-028
(2)
Lubricate the threads of the bulb with the antiseize compound.
S 424-010
(3)
Install the bulb in the duct receptacle.
S 434-009
(4)
Tighten the bulb.
S 434-011
(5)
Connect the electrical connector to the duct temperature bulb.
E. Do a Test of the Temperature Bulb
S 864-012
(1)
Supply electrical power (Ref 24-22-00/201).
S 864-013
(2)
Remove the DO-NOT-CLOSE tag and close this circuit breaker:
(a) P6-4, load control center circuit breaker panel 1) 6D2, TEMP IND
S 714-014
(3) Put the air temperature selector to the SUPPLY DUCT position and make sure the temperature indicator shows a temperature that is approximately the same as the ambient temperature.
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