(2)
On the panel 25VU, make sure that the APU MASTER SW p/bsw is OFF.
(3)
Make sure that there is a warning notice in the cockpit to tell persons not to start the APU.
(4)
Make sure that hydraulic systems are depressurized
(Ref. TASK 29-00-00-864-001).
(5)
Make sure that the access platform is positioned below the APU compartment.
(6)
Make sure that the APU access doors are open (Ref. TASK 52-41-00-010-001).
R EFF : 001-049, 101-105, 107-107, 151-199, 49-32-11Page 406 201-210, Config-2 Aug 01/05
CES Subtask 49-32-11-865-066
C. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------121VU APU/APU/CTL 2KD L42 121VU APU/ECB/SPLY 1KD L41
4. Procedure
_________
(Ref. Fig. 401/TASK 49-32-11-991-005) Subtask 49-32-11-420-054
A. Installation of the FCU
(1)
Clean the component interface and/or the adjacent area.
(2)
Do an inspection of the component interface and/or the adjacent area.
(3)
Remove the blanking plugs.
(4)
Lubricate the new O-ring (7) with OILS (Material No. 03-002)
(5)
Install the O-ring (7) on the FCU (6).
(6)
Locate the FCU on the locating pin (13) of the oil module flange and install the clamp (8).
(7)
TORQUE the clamp (8) to 0.68 m.daN (60.17 lbf.in)
(8)
Lubricate the new O-rings (9) and O-ring (14) with OILS (Material No. 03-002).
(9)
Install the O-rings (9) and (14) on the pipes (10) and (15).
(10)
Install the pipes (10) and (15) into the FCU (6).
(11)
Turn plate (11) to hold the pipes in position and install the captive bolts (12).
(12)
TORQUE the bolts (12) to 0.57 m.daN (50.44 lbf.in)
(13)
Lubricate the new O-rings (4) with OILS (Material No. 03-002)
R EFF : 001-049, 101-105, 107-107, 151-199, 49-32-11Page 407 201-210, Config-2 Aug 01/05
CES
(14)
Install the O-rings (4) on the union (2) and put the union into the FCU (6).
(15)
Turn the plate (2) to hold the union (2) in the FCU (6) and tighten the nut (1).
(16)
TORQUE the nut (1) to 0.46 m.daN (40.70 lbf.in).
(17)
Safety the union (3) to the FCU with MISCELLANEOUS (Material No. 19-010).
(18)
Make sure that the electrical connectors are clean and in the correct condition.
(19)
Connect the electrical connector (5) to the FCU solenoid.
(20)
Make sure that the work area is clean and clear of tool(s) and other items.
Subtask 49-32-11-865-067
B. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s): 1KD, 2KD.
Subtask 49-32-11-870-056
C. Purge the APU fuel-feed line (Ref. TASK 28-22-00-710-001). Subtask 49-32-11-710-056
D. Do the operational test of the APU (Ref. TASK 49-00-00-710-010).
(1) Operate the APU for min. five minutes and examine the joints of the fuel control unit for leaks.
NOTE : Leaks are not permitted.
____
R EFF : 001-049, 101-105, 107-107, 151-199, 49-32-11Page 408 201-210, Config-2 Aug 01/05
CES 5. Close-up
________ Subtask 49-32-11-410-057
A. Close Access
(1)
Make sure that the work area is clean and clear of tool(s) and other items.
(2)
Close the APU access doors 315AL, 316AR (Ref. TASK 52-41-00-410-001).
中国航空网 www.aero.cn
航空翻译 www.aviation.cn
本文链接地址：A320飞机维护手册 AMM 机载辅助动力 AIRBORNE AUXILIARY POWER4(47)
