(2)
Clean the component interface and/or the adjacent area.
(3)
Make sure that the gasket (6) is in a good condition. If necessary replace the gasket (6).
(4)
Make sure that the joining faces of the outflow valve (5) and the aircraft structure are free from grease and sealants.
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(5)
Loosen the nuts (32).
NOTE : Only loosen the nuts sufficiently to allow the support
____
brackets (25) to move up or down.
(6)
Put the gasket (6) in position on the outflow valve (5).
NOTE : Make sure that the gasket location tab is on the forward,
____
actuator side of the outflow valve.
(7)
Carefully put the outflow valve (5) and the gasket (6) in position. NOTE : The outflow valve weighs approx. 12.5 kg (27.5577 lb).
____ The actuator side of the outflow valve must face to the underside of the aircraft.
NOTE : Make sure that the location pins (8) are in the correct
____
position in the outflow valve support-structure.
(8) From the outside of the aircraft install the outflow valve
attach-screws (7).
NOTE : Install the screws (7) as identified in the removal procedure.
____
(9) TORQUE in sequence (refer to sequence chart) the screws (7) to
between 0.36 and 0.44 m.daN (31.85 and 38.93 lbf.in).
(10)
Install the bolts (22) and the washers (21) in the support brackets (25).
(11)
Tighten the bolts (22).
(12)
Tighten the nuts (32).
(13)
Put the bonding strap (4) in position on the outflow valve (5) and install the washers (31), the bolt (30) and the nut (29) (Ref. TASK 20-28-00-912-004).
(14)
Put the bonding strap (4) in position and temporarily install the washer (28) and the bolt (27).
(15)
Put the grill (9) in position in the retaining clips (10) and install the quick release fasteners (12).
(16)
Remove the bolt (27) and the washer (28).
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(17)
Put the bonding straps (4) and (11) in position and install the washer (28) and the bolt (27) (Ref. TASK 20-28-00-912-004).
(18)
Remove the blanking caps from the disconnected electrical connectors.
(19)
Make sure that the electrical connectors are clean and in the correct condition.
(20)
Connect the electrical connectors (1) 10HL-B, (3) 10HL-A, (23) 10HL-E, (26) 10HL-D and (2) 10HL-C in that order.
(21)
Make sure that the work area is clean and clear of tool(s) and other items.
Subtask 21-31-51-420-064-B
B. Installation of the Outflow Valve WARNING : SUPPORT THE UNIT/ASSEMBLY OR IT WILL FALL AND BECOME DAMAGED OR
_______
INJURE PERSONNEL. THE UNIT/ASSEMBLY IS HEAVY.
NOTE : This paragraph is only applicable for outflow valve P/N 20790-01AA
____ and subsequent. Make sure that there is no blanking plug installed in the static port of the outflow valve electronic boxes.
(1)
Make sure that the parts retained from the removed component are clean and in the correct condition.
(2)
Clean the component interface and/or the adjacent area.
(3)
Make sure that the gasket (6) is in a good condition. If necessary replace the gasket (6).
(4)
Make sure that the joining faces of the outflow valve (5) and the aircraft structure are free from grease and sealants.
(5)
Loosen the nuts (30). NOTE : Only loosen the nuts sufficiently to allow the support
(6)
Put the gasket (6) in position on the outflow valve (5).
____
brackets (25) to move up or down.
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(7) Carefully put the outflow valve (5) and the gasket (6) in position. NOTE : The outflow valve weighs approx. 12.5 kg (27.5577 lb).
____
NOTE : Make sure that the location pins (8) are in the correct
____
position in the outflow valve support-structure.
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