(2)
Put blanking caps on the disconnected electrical connectors.
(3)
Loosen the screws (7).
(4)
Install the washers (21), the bolts (22) and (where fitted) the washers (24) in the outflow-valve electronics support-brackets (25).
NOTE : Do not tighten the bolts (22) at this time.
____
(5)
TORQUE in sequence (refer to the sequence chart) the screws (7) to between 0.45 and 0.55 m.daN (39.82 and 48.67 lbf.in).
(6)
Tighten the bolts (22) (Ref. TASK 20-28-00-912-004).
(7)
Put the bonding strap (4) in position on the outflow valve (5) and install the bolt (27), the washers (28) and the nut (29) (Ref. TASK 20-28-00-912-004).
(8)
Remove the blanking caps from the disconnected electrical connectors.
(9)
Make sure that the electrical connectors are clean and in the correct condition.
(10)
Connect the electrical connectors (1) 10HL-B, (3) 10HL-A, (23) 10HL-E, (26) 10HL-D and (2) 10HL-C in that order.
(11)
Make sure that the work area is clean and clear of tool(s) and other items.
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Subtask 21-31-51-420-065
F. Installation of the Outflow Valve
R **ON A/C 001-049, 051-061, 101-105,
(Ref. Fig. 402/TASK 21-31-51-991-004)
R **ON A/C 062-099,
R (Ref. Fig. 402A/TASK 21-31-51-991-004-A)
R **ON A/C 001-049, 051-099, 101-105,
NOTE : This procedure is only applicable for outflow valves P/N____ 2079-01AA. The outflow valve must be in the open position for this part of the procedure.
(1) Get access through the open outlet valve and disconnect the electrical connector (2) 10HL-C.
NOTE : This step is done to make sure that the outflow valve does not____ accidentally close.
(2) Put blanking caps on the disconnected electrical connectors.
(3) Loosen the screws (7).
(4) Install the washers (21), the bolts (22) and (where fitted) the washers (24) in the outflow-valve electronics support-brackets (25).
NOTE : Do not tighten the bolts (22) at this time.____
(5) TORQUE in sequence (refer to the sequence chart) the screws (7) to between 0.45 and 0.55 m.daN (39.82 and 48.67 lbf.in).
(6) Tighten the bolts (22) (Ref. TASK 20-28-00-912-004).
(7) Put the bonding strap (4) in position on the outflow valve (5) and install the washer (28) and the bolt (27) (Ref. TASK 20-28-00-912-004).
(8) Remove the blanking caps from the disconnected electrical connectors.
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(9) Make sure that the electrical connectors are clean and in the correct condition.
(10)
Connect the electrical connectors (1) 10HL-B, (3) 10HL-A, (23) 10HL-E, (26) 10HL-D and (2) 10HL-C in that order.
(11)
Make sure that the work area is clean and clear of tool(s) and other items.
Subtask 21-31-51-865-071
G. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s): 1HL, 2HL, 3HL, 6HU, 30HN.
Subtask 21-31-51-710-055
H. Pressure Control and Monitoring System Tests NOTE : The Operational Test of the Pressure Control and Monitoring System
____ must be performed on both system channels. Ensure that TEST OK or a failure message is displayed. If the test is interrupted it must be restarted until TEST OK or failure message is displayed.
(1)
Do the operational test of the pressure control and monitoring system (Ref. TASK 21-31-00-710-002).
(2)
Do the operational test of the manual pressure control and monitoring system (Ref. TASK 21-31-00-710-003).
5. Close-up
________ Subtask 21-31-51-410-066
A. Close Access
(1)
In the zone 312 disconnect and remove the 600 ohm boomset from the service interphone jack 13RJ.
(2)
Make sure that the work area is clean and clear of tool(s) and other items.
(3)
Install the access panel 312AR.
(4)
Remove the warning notice and close the avionics compartment access-door 824 (Ref. TASK 52-41-00-410-002).
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