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(2) Make sure that the engine 1(2) shutdown occurred not less than 5 minutes before you do this procedure.
(3) On the overhead maintenance panel 50VU:
(a) Make sure that the ON legend of the ENG/FADEC GND PWR/1(2) pushbutton switch is off.
(b) Put a warning notice to tell persons not to energize the FADEC 1(2).
Subtask 72-62-00-010-055
B. Open the fan cowl doors: (Ref. TASK 71-13-00-010-040)
FOR 1000EM1
437AL, 438AR
FOR 1000EM2
447AL, 448AR
Subtask 72-62-00-040-053
C. Make the thrust reverser unserviceable (Ref. TASK 78-30-00-481-041).
Subtask 72-62-00-010-057
D. Open the thrust reverser cowl doors: (Ref. TASK 78-36-00-010-040) FOR 1000EM1 451AL, 452AR FOR 1000EM2 461AL, 462AR
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E E Feb 01/98 E E ECES E 4. Procedure
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_________ Subtask 72-62-00-210-052
A. Inspect the TGB
-------------------------------------------------------------------------------INSPECT/CHECK MAXIMUM REMARKS SERVICEABLE LIMITS -------------------------------------------------------------------------------
1. Housing for :
A. Cracks
B. Nicks, dents and scratches
C. Leaks (Ref. TASK 79-00-00-210-003)
2. TGB mounts for :
A. Cracks
B. Bushing loose
C. Broken or missing lockwire
5. Close-up
________ Subtask 72-62-00-410-056
A. Close Access
Not serviceable
Any number, 0.035 in.
(0.9 mm) deep after
removal of high metal
No leakage allowed Tighten fitting to the
appropriate torque value
and/or replace packing
Not serviceable
Not serviceable
Not serviceable Replace lockwire
(1) Make sure that the work area is clean and clear of tool(s) and other items.
(2) Close the thrust reverser doors: (Ref. TASK 78-36-00-410-040) FOR 1000EM1 451AL, 452AR FOR 1000EM2 461AL, 462AR
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E E Feb 01/98 E E ECES E Subtask 72-62-00-440-052
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B. Make the thrust reverser serviceable (Ref. TASK 78-30-00-081-041). Subtask 72-62-00-410-059
C. Close Access
(1) Close the fan cowl doors: (Ref. TASK 71-13-00-410-040) FOR 1000EM1 437AL, 438AR FOR 1000EM2 447AL, 448AR
(2) Remove the warning notice(s).
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E E Feb 01/98 E E ECES E ACCESSORY GEARBOX ASSEMBLY - DESCRIPTION AND OPERATION
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______________________________________________________
1. General
_______ (Ref. Fig. 001) The accessory gearbox (AGB) assembly is mounted under the fan case at 6 o'clock. It consists of a gear train that reduces and increases the rotational speed to meet the specific drive requirements of each accessory. Some of the accessories are installed on the AGB through quick attach/detach (QAD) rings. The AGB consists of the following major assemblies :
- Horizontal drive shaft.
- AGB housing.
- Gear train.
2. Description
___________
(Ref. Fig. 001, 002, 003, 004, 005, 006)
A. Horizontal Drive Shaft Assembly The horizontal drive shaft assembly provides power transmission between TGB and AGB. It includes the AGB-TGB coupling tube housing and the horizontal drive shaft. 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 ENGINE 发动机 2(129)
