(f)
LOWER FORWARD CARGO VALVE
1) P415 Main Power Distribution Panel a) 415B27, MAN TEMP CONT LWR CARGO FWD
(g)
LOWER AFT CARGO VALVE
1) P415 Main Power Distribution Panel, Left a) 415B28, MAN TEMP CONT LWR CARGO AFT
S 014-028
(9) Get access to the applicable valve:
(a) MAIN DECK AND LOWER AFT CARGO VALVES
1) Install the ground locks for the landing gear (AMM 09-11-00/201).
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WARNING: REFER TO 32-00-30/201 FOR THE CORRECT INSTALLATION OF
_______ THE DOOR LOCKS FOR THE LANDING GEAR. THE LANDING GEAR DOORS CAN MOVE QUICKLY AND CAN CAUSE INJURY TO PERSONS OR DAMAGE TO EQUIPMENT IF YOU DO NOT INSTALL THE DOOR LOCKS CORRECTLY.
2) Install the door locks for the body landing gear and the wing landing gear (AMM 32-00-30/201). 3) Get access to the valve in the wheel well.
(b)
FORWARD CARGO COMPARTMENT VALVE
1) Open the access door, 192NR, to the right air conditioning bay (AMM 06-09-03/201).
(c)
FLIGHT DECK, UPPER DECK, AND CREW REST AREA VALVES
1) Remove the ceiling panel just left of the airplane centerline at station 1110 (AMM 25-59-01/401).
D. Remove the Valve
S 034-017
(1) Remove the bonding jumper from the valve if you are removing one of these valves:
(a)
Forward or Aft Main Deck Valves
(b)
Forward or Aft Lower Cargo Valves
S 034-018
(2) Disconnect the electrical connector from the applicable valve:
(a)
Flight Deck DV450
(b)
Upper Deck DV451
(c)
Crew Rest Area DV554
(d)
Main Deck Forward DV550
(e)
Main Deck Aft DV551 and DV552
(f)
Lower Forward Cargo DV460
(g)
Lower Aft Cargo DV461
S 034-019
WARNING: DO NOT REMOVE THE MODULATING VALVE WHEN THERE IS PRESSURE IN
_______ THE DUCTS. MAKE SURE YOU REMOVE THE PRESSURE IN THE PNEUMATIC SYSTEM BEFORE YOU REMOVE THE CLAMPS FROM THE MODULATING VALVE. INJURY TO PERSONS CAN OCCUR IF YOU DO NOT REMOVE THE PRESSURE.
(3) Remove the clamps from each end of the modulating valve.
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S 024-020
(4)
Remove the modulating valve from the duct.
S 034-021
(5)
Put a cover in the duct openings.
TASK 21-61-10-404-022
3. Zone Trim Air Modulating Valve Installation (Fig. 401)
___________________________________________
A. References
(1)
09-11-00/201, Towing
(2)
21-00-00/201, Air Conditioning
(3)
AMM 21-61-00/501, Zone Temperature Control System
(4)
24-22-00/201, Manual Control
(5)
25-59-01/401, Main Deck Cargo Lining Panels
(6)
32-00-30/201, Landing Gear Door Locks
(7)
36-00-00/201, Pneumatic System
(8)
IPC 21-44-54 Fig. 1, 21-61-10 Figs. 01, 10, and 15.
(9)
SSM 21-45-08, 21-61-01, 21-61-02, 21-61-08, 21-61-15, 21-61-16
B. Access
(1)
Location Zone
134 Air Conditioning Equipment Bay, RH
135 Wing Landing Gear Well, LH
136 Wing Landing Gear Well, RH
138 Body Landing Gear Well, RH
(2)
Access Panel
192NR Air Conditioning Access Door
C. Procedure
S 034-026
(1)
Remove the covers from the duct openings.
S 214-024 中国航空网 www.aero.cn 航空翻译 www.aviation.cn 本文链接地址：747-400 AMM 飞机维护手册 空调 AIR CONDITIONING 2(153)
