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MAINTENANCE MANUAL
(c) If you put the inboard exhaust valve through the opening at the station 560, do the steps that follow: 1) Install the section of the bypass duct and the duct section
forward of station 560.
2) Put the duct sleeves on each end of the ducts.
3) Install the clamps on each end of the ducts.
4) Install the duct support clamp at station 560.
5) Install the antenna cables on the duct section forward of
station 560.
6) Install the walkway panel.
S 434-049
(3) Put the duct sleeves on each end of the valve.
(a) Make sure the duct joint is in the middle of the duct sleeve.
S 434-012
(4)
Install the clamps on each end of the valve to hold the duct sleeves in their positions.
S 434-013
(5)
Connect the bonding jumper to the valve.
S 434-014
(6)
Connect the electrical connector to the valve.
(a)
Supply valve DV444
(b)
Exhaust valve DV445
(c)
Bypass valve DV446
D. Do the Installation Test for the Valve
S 824-015
(1)
To do the test on the supply valve or the exhaust valve, turn the manual drive handle until the position indicator is in the CLOSED position.
S 824-016
(2)
To do the test on the bypass valve, turn the manual drive handle until the position indicator is in the OPEN position.
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S 864-017
(3)
Turn the EQUIP COOLING selector, on the overhead panel, P5, to the STBY position.
S 864-018
(4)
Supply electrical power (Ref 24-22-00/201).
S 714-019
(5)
Make sure the position indicator on the valve moves to the opposite position.
S 794-021
(6)
Feel for leaks around the valve.
(a)
Small leaks are permitted.
(b)
You must repair a large leak.
S 434-060
(7) Install the moisture shroud on the valve (inboard exhaust valve).
E. Put the Airplane to Its Usual Condition
S 414-022
(1)
If the inboard supply valve or the bypass valve was installed, install the left sidewall lining of the forward cargo compartment (Ref 25-52-01/401).
S 864-023
(2)
Turn the EQUIP COOLING selector, on the P5 panel to the NORM position.
S 864-024
(3)
Remove the electrical power, if it is not necessary (Ref 24-22-00/201).
TASK 21-58-04-004-036
4. Inboard Exhaust Valve Actuator Removal______________________________________
A. References
(1) 21-00-00/201, Air Conditioning
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(2)
24-22-00/201, Manual Control
(3)
25-52-01/401, Containerized Cargo Compartment Ceiling and Sidewall Lining
(4)
IPC 21-58-04 Fig. 3
(5)
WDM 21-58-13
(6)
SSM 21-58-03
B. Access
(1) Location Zone
121 Forward Cargo Compartment Forward Half, LH
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