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3. Job Set-up
__________
Subtask 78-31-16-941-051
A. Safety Precautions
(1) On the center pedestal, on the ENG panel 115VU:
(a) Put a warning notice to tell persons not to start the engine.
(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 78-31-16-010-051
B. Get Access
(1) Open the fan cowl doors: (Ref. TASK 71-13-00-010-040)
FOR 1000EM1
437AL, 438AR
FOR 1000EM2
447AL, 448AR
(2) Put the access platform in position.
Subtask 78-31-16-040-051
C. Make the thrust reverser unserviceable (Ref. TASK 78-30-00-481-041).
Subtask 78-31-16-010-052
D. Open the thrust reverser doors: (Ref. TASK 78-36-00-010-040)
FOR 1000EM1
451AL, 452AR
FOR 1000EM2
461AL, 462AR
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4. Procedure_________
(Ref. Fig. 601/TASK 78-31-16-991-301)
Subtask 78-31-16-210-050
A. Do a visual inspection of the pressure switch, the related hardware and of the pylon electrical connector as follows:
-------------------------------------------------------------------------------INSPECT/CHECK MAXIMUM REMARKS SERVICEABLE LIMITS -------------------------------------------------------------------------------
1. Inspect the pressure switch for:
A. Damage No damage allowed If you find some damage, replace the pressure switch. (Ref. TASK 78-31-16-000-041) and (Ref. TASK 78-31-16-400-041).
B. Crack No crack allowed If there is crack, replace the pressure switch. (Ref. TASK 78-31-16-000-041) and (Ref. TASK 78-31-16-400-041).
C. Hydraulic Leakage No leakage allowed If there is leakage examine the bolts for correct torque (Ref. TASK 78-31-16-400-041)
If the leakage persists, replace the packing (Ref. TASK 78-31-16-000-041) and (Ref. TASK 78-31-16-400-041).
If the leakage persists, replace the pressure switch (Ref. TASK 78-31-16-000-041) and (Ref. TASK 78-31-16-400-041).
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Pressure Switch
Figure 601/TASK 78-31-16-991-301
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-------------------------------------------------------------------------------INSPECT/CHECK MAXIMUM REMARKS SERVICEABLE LIMITS -------------------------------------------------------------------------------
2. Inspect the related
hardware of the
pressure switch for:
A. Damage No damage allowed If you find some damage, replace the defective part. (Ref. TASK 78-31-16-000-041) and (Ref. TASK 78-31-16-400-041).
B. Missing No missing hardware If you find some hardware
permitted missing, install replacement parts. (Ref. TASK 78-31-16-000-041) and (Ref. TASK 78-31-16-400-041).
3. Inspect the pylon
electrical connector
for:
A. Tightness The blue mark of the If the blue mark of the pressure switch must be pressure switch is covered by the blue mark visible, tighten the of the pylon electrical electrical connector with connector. the softnose pliers.
5. Close-up
________
Subtask 78-31-16-410-051
A. Close Access
(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 中國航空網 www.k6050.com 航空翻譯 www.aviation.cn 本文鏈接地址：A320飛機維護手冊 AMM EXHAUST 1(44)
