W DOC AIRBUS | AMM A320F

Removal??of??the C Seal??Gaskets?? [CFML]

TASK 79-22-01-000-802-A
Removal??of??the C Seal??Gaskets??

WARNING: BE CAREFUL WHEN YOU DO WORK ON THE ENGINE PARTS AFTER THE ENGINE SHUTDOWN. USE APPLICABLE THERMAL GLOVES. THE ENGINE PARTS CAN STAY HOT FOR ONE HOUR AFTER SHUTDOWN AND CAN BURN YOU.
ZONE: 410
ZONE: 420
1. Reason for the Job
Self explanatory
2. Job Set-up Information
 A. Fixtures, Tools, Test and Support Equipment
REFERENCE
QTY
DESIGNATION
No specific
AR
CAP - BLANKING
No specific
AR
PLUG - BLANKING
No specific
AR
SAFETY CLIP - CIRCUIT BREAKER
No specific
AR
WARNING NOTICE(S)
 B. Work Zones and Access Panels
ZONE/ACCESS
ZONE DESCRIPTION
410
ENG 1 PYLON BOX AND FORWARD FAIRING
420
ENG 2 PYLON BOX AND FORWARD FAIRING
FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENGINE 1)
437AL, 438AR
FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENGINE 2)
447AL, 448AR
 C. Referenced Information
REFERENCE
DESIGNATION
TASK 12-13-79-610-803-A
Draining of the Lubrication Unit
TASK 71-13-00-010-803-A
Opening of the Fan Cowl Doors
F C Seal Gasket
F C Seal Gasket
3. Job Set-up
Subtask 79-22-01-941-054-A
A. Safety Precautions
   (1) On the center pedestal, on ENG panel 115VU:
     (a) Make sure that the ENG/MODE selector switch is in the NORM position.
     (b) Make sure that the ENG/MASTER 1(2) control switch was in the OFF position not less than five minutes before you do this procedure.
     (c) Put WARNING NOTICE(S) in position to tell persons not to operate:
  • The ENG/MODE selector switch
  • The ENG/MASTER 1(2) control switch.
   (2) On the ENG section of maintenance panel 50VU:
     (a) Make sure that the ON legend of the FADEC GND PWR/1(2) pushbutton switch is off.
     (b) Put a WARNING NOTICE(S) in position to tell persons not to energize FADEC 1(2).
Subtask 79-22-01-865-055-A
B. Open, safety and tag this(these) circuit breaker(s):
PANELDESIGNATIONFINLOCATION
** ON A/C ALL
49VUENGINE/1 AND 2/IGN/SYS A1JHA03
FOR FIN: 4020KM1 (POWER PLANTDEMOUNTABLE, ENGINE 1)
121VUENGINE/IGN/ENG1/SYS B3JH1P41
FOR FIN: 4020KM2 (POWER PLANTDEMOUNTABLE, ENGINE 2)
121VUENGINE/IGN/ENG2/SYS B3JH2P42
Subtask 79-22-01-010-057-A
C. Get Access
   (1) Open the fan cowl doors (Ref. AMM TASK 71-13-00-010-803):
     (a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENGINE 1)
437AL, 438AR.
     (b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENGINE 2)
447AL, 448AR.
4. Procedure
Subtask 79-22-01-020-051-A
A. Removal of the C Seal Gaskets
WARNING: USE PERSONAL PROTECTION EQUIPMENT. USE THE ENGINE OIL IN A WELL-VENTILATED AREA. ENGINE OIL IS TOXIC.
   (1) Drain the lubrication unit (Ref. AMM TASK 12-13-79-610-803).
   (2) Remove all the C seal gaskets and the flange assy C seals between pipeline / pipeline interface as follows:
WARNING: USE PROTECTIVE GLOVES AND BE CAREFUL WITH OIL SPLASHES WHEN YOU DISCONNECT OIL TUBES. HOT OIL CAN CAUSE DEEP BURNS.
     (a) Removal of the flange assy C seal (7) and the flange assy C seal (13):
       1 Loose the nut (1) and the bolt (4) that attach the clamp (3). 
       2 Loose the bolt (5) that attach the clamp (6). 
       3 Remove the four nuts (10) and the four bolts (9) that attach the oil tube (8) to the oil tube (2).
       4 Remove and discard the flange assy C seal (7) from the oil tube (8). 
       5 Remove the four nuts (11) and the four bolts (14) that attach the oil tube (2) to the oil tube (12).
       6 Remove and discard the flange assy C seal (13) from the oil tube (2). 
     (b) Removal of the C seal gasket (17):
       1 Remove the four nuts (15) and the four bolts (18) that attach the oil tube (19) to the oil tube (16). 
       2 Remove and discard the C seal gasket (17) from the oil tube (19). 
     (c) Removal of the flange assy C seal (22):
       1 Remove the four nuts (21) and the four bolts (23) that attach the oil tube (24) to the oil tube (20).
       2 Remove and discard the flange assy C seal (22) from the oil tube (24).
     (d) Removal of the flange assy C seal (27):
       1 Remove the four nuts (29) and the four bolts (25) that attach the oil tube (28) to the oil tube (26).
       2 Remove and discard the flange assy C seal (27) from the oil tube (28).
     (e) Removal of the C seal gasket (33):
       1 Remove the four nuts (30) and the four bolts (31) that attach the oil tube (34) to the oil tube (32).
       2 Remove and discard the C seal gasket (33) from the oil tube (34).
     (f) Seal all tubes and openings with CAP - BLANKING or PLUG - BLANKING.
[Rev.10 from 2021] 2026.04.01 03:43:21 UTC
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