(9)
Connect the electrical connector (1) to the SCV (8058KM) (2). Subtask 49-51-52-865-054
B.
Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s): 1KD, 2KD.
Subtask 49-51-52-740-051
C. BITE Test of the Surge Control System.
(1)
Energize the CFDS to get the SYSTEM REPORT/TEST page for the APU (Ref. TASK 31-32-00-860-001)
(2)
Set the APU MASTER SW 14KD to ON.
(3)
Do this Test.
Surge Control Valve-Visual Position Indicator
Figure 402/TASK 49-51-52-991-004
CES
-------------------------------------------------------------------------------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.
Subtask 49-51-52-710-053On 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.
D. Test the APU Surge Control System.
(1)
Examine the surge control valve area for air leaks (Ref. TASK 49-00-00-790-004). No leaks are permitted.
(2)
Start and operate the APU (Ref. TASK 49-00-00-860-003).
(3)
Make sure that the surge control valve Visual-indicator is in the OPEN position.
(4)
Make sure that the APU X-BLEED switch is in the AUTO position.
(5)
Do this Test.
-------------------------------------------------------------------------------ACTION RESULT -------------------------------------------------------------------------------
1. On the panel 30VU:
-
push the APU BLEED pushbutton switch to the ON position.
-
push the PACK 1 and PACK 2 pushbutton switches to on.
2. IN the APU compartment:
-make an inspection of the surge control valve visual-position indicator.
3. In the cockpit:
-do a dry run on the main engine (Ref. TASK 71-00-00-710-001).
4. On the panel 30VU :
-release the PACK 1 and PACK 2 pushbutton switches to the OFF position.
-push the APU BLEED pushbutton switch to the off position.
On the panel 30VU:
-
the ON light in the APU BLEEDpushbutton switch comes on.
-
the OFF lights in the PACK 1 and PACK2 pushbutton switches go off.
In the APU compartment:
-
the surge control valve indicator isapproximately in the half openposition.
In the APU compartment:
-
the surge control valve indicator is approximately in the CLOSED position.
On the panel 30VU:
-
the OFF lights in the PACK 1 and PACK2 pushbutton switches come on.
-
the ON light in the APU BLEEDpushbutton switch goes off.
In the APU compartment:
-
the surge control valve position indicator must be in the open position.
(6) Stop the APU (Ref. TASK 49-00-00-860-004).
5. Close-up
________ Subtask 49-51-52-410-050
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 49-51-52-865-061
B.
Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------121VU APU/APU/CTL 2KD L42 121VU APU/ECB/SPLY 1KD L41
Subtask 49-51-52-860-054
C. Aircraft Maintenance Configuration
(1)
Pressurize the reservoirs of the hydraulic systems.
(Ref. TASK 29-14-00-614-002).
(2)
De-energize the ground service network
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