(18)
TORQUE the tube nuts (12), (13), (14) and (20)to between 2.0 and 2.25 m.daN (14.74 and 16.59 lbf.ft).
(19)
Install the clamp (8) that attaches the cable harness to the bracket
(27) with the bolt (7).
(20)
Attach the cushioned clamp (24) to the drain air exhaust tube.
(21)
Position the clamp on the clamp bracket support assembly (26).
(22)
Install the bolt (25).
(23)
TORQUE the bolts (7) and (25) to 40 lbf.in (0.45 m.daN).
(24)
Install the three clamps on the tubes (12 and 13).
(25)
Install the six clamps on tubes (14) and (20).
(26)
TORQUE the clamp nuts to 40 lbf.in (0.45 m.daN).
(27)
Make sure that the electrical connectors are clean and in the correct condition.
(28)
Install the electrical connector P33 (5) to the valve.
Subtask 49-51-53-865-052
B. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------49VU AIR BLEED/X FEED/VALVE/BAT 2HV D13 121VU APU/APU/CTL 2KD L42 121VU APU/ECB/SPLY 1KD L41
Subtask 49-51-53-710-050
C. Energize the CFDS to get the SYSTEM REPORT/TEST page for the APU
(Ref. TASK 31-32-00-860-001).
(1)
Set the APU MASTER SW 14KD to ON.
(2)
Do this Test.
-------------------------------------------------------------------------------ACTION RESULT -------------------------------------------------------------------------------
1. On the MCDU:
-
push the pushbutton adjacent to the APU indication.
-
push the pushbutton adjacent to the SYSTEM SELF-TEST indication.
2. On the MCDU:
-
push the pushbutton adjacent to the RETURN display.
-
push the pushbutton adjacent to the RETURN display.
-
push the pushbutton adjacent to the RETURN display.
On the MCDU:
-
the APU menu page comes on.
-
the APU SYSTEM SELF-TEST page comeson and shows the messageIN PROGRESS.
-if the test is satisfactory, the message TEST OK comes on.
On the MCDU:
-
the APU menu page comes on.
-
the SYSTEM REPORT/TEST page comes on.
-
the CFDS page comes on.
Subtask 49-51-53-710-051
D. Do the operational test of the APU (Ref. TASK 49-00-00-710-008).
(1) Examine the joints of the bleed control valve for leaks (Ref. TASK 49-00-00-790-005).
NOTE : Leaks are not permitted.
____
________
5. Close-up
Subtask 49-51-53-410-050
A. Close Access
(1)
Make sure that the work area is clean and clear of tool(s) and other items.
(2)
Set the LIGHT control switch 11LJ to the off position.
(3)
Close the APU access doors 315AL, 316AR (Ref. TASK 52-41-00-410-001).
(4)
Remove the access platform(s).
(5)
Remove the warning notice(s). Subtask 49-51-53-860-052
B.
Aircraft Maintenance Configuration
(1) De-energize the aircraft electrical circuits
(Ref. TASK 24-41-00-862-002).
BYPASS VALVE - REMOVAL/INSTALLATION
___________________________________ TASK 49-51-54-000-001 Removal of the Buffer-Air Bypass Valve (GTCP 36-300)
1.
Reason for the Job
__________________
Self Explanatory
2.
Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
-------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific blanking plugs
No specific circuit breaker(s) safety clip(s)
No specific access platform 2.5 m (8 ft. 2 in.)
B. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
24-42-00-861-001 Energize the Ground Service Network from the External Power 29-00-00-864-001 Put the Related Hydraulic System in the Depressurized
Configuration before Maintenance Action 52-41-00-010-001 Open the APU Doors for Access 49-51-54-991-001 Fig. 401
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