W DOC AIRBUS | AMM A320F

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

TASK 79-22-01-400-802-A
Installation 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.
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
WARNING NOTICE(S)
No specific
Torque wrench: range to between 46.2 and 41.8 lbf.in (0.52 and 0.47 m.daN ) T
No specific
Torque wrench: range to between 91 and 85 lbf.in (1.03 and 0.96 m.daN ) T
 B. Work Zones and Access Panels
ZONE/ACCESS
ZONE DESCRIPTION
FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENGINE 1)
437AL, 438AR
FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENGINE 2)
447AL, 448AR
 C. Expendable Parts
FIG.ITEM
DESIGNATION
IPC-CSN
17
C SEAL GASKET
EIPC 72-00-00-30-710
22
FLANGE ASSY C SEAL
EIPC 72-00-00-33-040
27
FLANGE ASSY C SEAL
EIPC 72-00-00-33-080
33
C SEAL GASKET
EIPC 72-00-00-33-160
13
FLANGE ASSY C SEAL
EIPC 72-00-00-33-480
7
FLANGE ASSY C SEAL
EIPC 72-00-01-09-220
 D. Referenced Information
REFERENCE
DESIGNATION
TASK 12-13-79-610-805-A
Check of the Oil Level and Replenishing
TASK 71-00-00-710-815-A
Idle Leak Check
TASK 71-13-00-010-803-A
Opening of the Fan Cowl Doors
TASK 71-13-00-410-803-A
Closing of the Fan Cowl Doors
F C Seal Gasket
F C Seal Gasket
3. Job Set-up
Subtask 79-22-01-941-055-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) Make sure that the WARNING NOTICE(S) are 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) Make sure that the WARNING NOTICE(S) is in position to tell persons not to energize FADEC 1(2).
Subtask 79-22-01-865-056-A
B. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged:
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 79-22-01-010-058-A
C. Get Access
   (1) Make sure that the fan cowl doors are open (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 79-22-01-420-051-A
A. Installation of the C Seal Gaskets
   (1) Install all the C seal gaskets and the flange assy C seals between pipeline / pipeline interface as follows:
     (a) Remove CAP - BLANKING or PLUG - BLANKING from the tubes and the openings.
     (b) Installation of the flange assy C seal (7) and the flange assy C seal (13): 
       1 Install the new 72000109-220FLANGE ASSY C SEAL7 between the flanges of the oil tube (8) and the oil tube (2). 
       2 Attach the oil tube (8) to the oil tube (2) with the four bolts (9) and the four nuts (10).
       3 Tighten the four nuts (10) by hand. 
       4 Install the new 72000033-480FLANGE ASSY C SEAL13 between the flanges of the oil tube (2) and the oil tube (12). 
       5 Attach the oil tube (2) to the oil tube (12) with the four bolts (14) and the four nuts (11).
       6 Tighten the four nuts (11) by hand. 
       7 TORQUE the four nuts (10) in a crisscross sequence to between 91 and 85 lbf.in (1.03 and 0.96 m.daN ) T.
       8 TORQUE the four nuts (11) in a crisscross sequence to between 91 and 85 lbf.in (1.03 and 0.96 m.daN ) T.
       9 TORQUE the nut (1) that attach the clamp (3) to between 46.2 and 41.8 lbf.in (0.52 and 0.47 m.daN ) T.
       10 TORQUE the bolt (5) that attach the clamp (6) to between 46.2 and 41.8 lbf.in (0.52 and 0.47 m.daN ) T.
     (c) Installation of the C seal gasket (17):
       1 Install the new 72000030-710C SEAL GASKET17 between the flanges of the oil tube (19) and the oil tube (16).
       2 Attach the oil tube (19) to the oil tube (16) with the four bolts (18) and the four nuts (15).
       3 TORQUE the four nuts (15) in a crisscross sequence  to between 91 and 85 lbf.in (1.03 and 0.96 m.daN ) T.
     (d) Installation of the flange assy C seal (22):
       1 Install the new 72000033-040FLANGE ASSY C SEAL22 between the flanges of the oil tube (24) and the oil tube (20).
       2 Attach the oil tube (24) to the oil tube (20) with the four bolts (23) and the four nuts (21).
       3 TORQUE the four nuts (21) in a crisscross sequence  to between 91 and 85 lbf.in (1.03 and 0.96 m.daN ) T.
     (e) Installation of the flange assy C seal (27):
       1 Install the new 72000033-080FLANGE ASSY C SEAL27 between the flanges of the oil tube (28) and the oil tube (26).
       2 Attach the oil tube (28) to the oil tube (26) with the four bolts (25) and the four nuts (29).
       3 TORQUE the four nuts (29) in a crisscross sequence to between 91 and 85 lbf.in (1.03 and 0.96 m.daN ) T.
     (f) Installation of the C seal gasket (33):
       1 Install the new 72000033-160C SEAL GASKET33 between the flanges of the oil tube (34) and the oil tube (32).
       2 Attach the oil tube (34) to the oil tube (32) with the four bolts (31) and the four nuts (30).
       3 TORQUE the four nuts (30) in a crisscross sequence to between 91 and 85 lbf.in (1.03 and 0.96 m.daN ) T.
WARNING: USE PERSONAL PROTECTION EQUIPMENT. USE THE ENGINE OIL IN A WELL-VENTILATED AREA. ENGINE OIL IS TOXIC.
     (g) Fill the oil tank (Ref. AMM TASK 12-13-79-610-805).
Subtask 79-22-01-865-059-A
B. Remove the safety clip(s) and the tag(s) and close 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 79-22-01-790-050-A
C. Test(s)
   (1) Do an idle leak check (Ref. AMM TASK 71-00-00-710-815).
5. Close-up
Subtask 79-22-01-410-053-A
A. Close Access
   (1) Make sure that the work area is clean and clear of tools and other items.
   (2) Close the fan cowl doors (Ref. AMM TASK 71-13-00-410-803):
     (a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENGINE 1)
437AL, 438AR.
     (b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENGINE 2)
447AL, 448AR.
   (3) Remove the WARNING NOTICE(S).
[Rev.10 from 2021] 2026.04.01 03:43:22 UTC
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