W DOC AIRBUS | AMM A320F

Installation of the Oil Inlet Cover Assembly [CFMB]

TASK 72-56-00-400-002-A
Installation of the Oil Inlet Cover Assembly

FIN: 1000EM1 ** ON A/C NOT FOR ALL
FIN: 1000EM2 ** ON A/C NOT FOR ALL
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
PLIERS - NOSE, SOFT, LONG
No specific
AR
WARNING NOTICE(S)
No specific
Torque wrench: range to between 77 and 63 lbf.in (0.87 and 0.71 m.daN ) T
No specific
Torque wrench: range to between 100 and 90 lbf.in (1.13 and 1.02 m.daN ) T
No specific
Torque wrench: range to between 120 and 110 lbf.in (1.36 and 1.24 m.daN ) T
No specific
Torque wrench: range to between 195 and 180 lbf.in (2.20 and 2.03 m.daN ) T
No specific
Torque wrench: range to between 300 and 270 lbf.in (3.39 and 3.05 m.daN ) T
856A2794
1
TOOL SET SEAL FITTING AGB-TGB
 B. Consumable Materials
REFERENCE
DESIGNATION
(Material No.CP2101)
graphite grease
(Material No.CP2442)
engine oil
(Material No.CP5070)
vaseline
(Material No.CP8001)
lockwire 0.032 in. (0.8 mm) dia.
(Material No.CP8002)
lockwire 0.032 in. (0.8 mm) dia
 C. Expendable Parts
FIG.ITEM
DESIGNATION
IPC-CSN
190
O-RING
AIPC 72-56-00-02-080
20
O-RING
AIPC 72-56-00-02-130
230
GASKET SEAL
AIPC 72-56-00-02-140
 D. Referenced Information
REFERENCE
DESIGNATION
TASK 12-13-79-610-002-A
Check oil level and replenish Check Pop Out Indicator of EMCD (Electrical Master Chip Detector)
TASK 12-13-79-610-002-A-01
Check oil level and replenish (Pressure Filling)
TASK 71-00-00-710-006-B
Minimum Idle Check
TASK 72-56-00-000-001-A
Removal of the Flame Arrestor and Flange Assembly
TASK 72-56-00-400-001-A
Installation of the Flame Arrestor and Flange Assembly
F Oil Inlet Cover
F Aft Sump Oil Supply Tubes
F Torque Sequence for Oil Inlet Cover Installation
3. Job Set-up
Subtask 72-56-00-860-051-A ** ON A/C NOT FOR ALL
A. Aircraft Maintenance Configuration
   (1) On the center pedestal, on the ENG panel 115VU, make sure that a WARNING NOTICE(S) is in position to tell persons not to start the engine.
   (2) On the overhead maintenance panel 50VU, make sure that the ON legend of the ENG/FADEC GND PWR/1(2) is off. Make sure that a WARNING NOTICE(S) is in position to tell persons not to energize the FADEC 1(2).
   (3) Make sure that the flame arrestor and the flange assembly are removed (Ref. AMM TASK 72-56-00-000-001).
4. Procedure
Subtask 72-56-00-420-052-B ** ON A/C NOT FOR ALL
A. Installation of the Oil Inlet Cover (160)
NOTE: For Turbine Frame with Tangential Symetrical Section Struts only.
   (1) Lubricate a new AIPC 72-56-00-02-080 O-RING (190) with engine oil (Material No.CP2442) .
   (2) Install the O-ring (190) on the nipple (180), with the 856A2794 TOOL SET SEAL FITTING AGB-TGB (856A2794G01).
   (3) Install the nipple (180) on the oil inlet cover (160) at 7:00 o'clock position, aft looking forward. Tighten by hand to seat.
   (4) TORQUE the nipple (180) to between 195 and 180 lbf.in (2.20 and 2.03 m.daN ) T.
   (5) Safety the nipple (180) to the oil inlet cover (160) with CP8001lockwire 0.032 in. (0.8 mm) dia. or CP8002lockwire 0.032 in. (0.8 mm) dia.
   (6) Lubricate a new AIPC 72-56-00-02-130 O-RING (20) with vaseline (Material No.CP5070) .
   (7) Install the O-ring (20) in the front groove on the oil inlet cover (160).
   (8) Position a new AIPC 72-56-00-02-140 GASKET SEAL (230) on the No. 5 bearing support. Use PINS GUIDE - NO. 5 BEARING OUTER RACE INSTALLATION (856A3108) (856A3108G01), to hold the gasket seal until oil cover (160) is attached.
   (9) Lubricate the threads of the bolts (30) with graphite grease (Material No.CP2101) .
   (10) Install the oil inlet cover (160) with the PULLER ADAPTER - OIL INLET COVER (856A3419) (856A3419G02), in the LPT frame. Match the position of the oil inlet cover flange with the oil scavenge tube which comes out at the bottom of the No. 5 bearing support.
   (11) Install the 12 bolts (30) that attach the oil inlet cover (160) to the No. 5 bearing support.
   (12) Remove the PINS GUIDE - NO. 5 BEARING OUTER RACE INSTALLATION (856A3108) (856A3108G01).
   (13) Tighten the bolts (30) manually.
   (14) With hand pressure on oil inlet cover, use an impact puller on PULLER ADAPTER - OIL INLET COVER (856A3419) (856A3419G02), or MALLET - PLASTIC to install the oil inlet cover flange against the No. 5 bearing support.
   (15) Remove the PULLER ADAPTER - OIL INLET COVER (856A3419) (856A3419G02).
   (16) Initially, tighten bolts (30) to 35 lbf.in (0.40 m.daN) in criss-cross pattern, for correct installation of the O-ring(20).
F Torque Sequence for Oil Inlet Cover Installation ** ON A/C NOT FOR ALL
   (17) TORQUE the bolts (30) to between 77 and 63 lbf.in (0.87 and 0.71 m.daN ) T in criss-cross pattern. Refer to Fig. Torque Sequence for Oil Inlet Cover Installation.
   (18) TORQUE the bolts (30) to between 120 and 110 lbf.in (1.36 and 1.24 m.daN ) T in criss-cross pattern. Refer to Fig. Torque Sequence for Oil Inlet Cover Installation.
   (19) Wait for five minutes minimum.
   (20) Loosen all bolts (30) by approximately 180 degrees.
   (21) TORQUE the bolts (30) to between 120 and 110 lbf.in (1.36 and 1.24 m.daN ) T in criss-cross pattern. Refer to Fig. Torque Sequence for Oil Inlet Cover Installation.
   (22) Wait for five minutes minimum.
   (23) Loosen all bolts (30) by approximately 180 degrees.
   (24) TORQUE the bolts (30) to between 120 and 110 lbf.in (1.36 and 1.24 m.daN ) T in criss-cross pattern. Refer to Fig. Torque Sequence for Oil Inlet Cover Installation.
   (25) TORQUE the bolts (30) clockwise, starting with bolt No. 1 to between 120 and 110 lbf.in (1.36 and 1.24 m.daN ) T.
   (26) Safety bolts with CP8001lockwire 0.032 in. (0.8 mm) dia. or CP8002lockwire 0.032 in. (0.8 mm) dia.
Subtask 72-56-00-420-053-C ** ON A/C NOT FOR ALL
B. Installation of the Oil Supply Tubes
NOTE: This procedure is for Turbine Frame with Tangential Symmetrical Section Struts only.
NOTE: Make sure that Oil Supply Tube in the LPT frame is correctly positioned.
   (1) Put the oil supply tube (170) and the damping oil tube (200) in position.
   (2) Connect the oil supply tube (170) to the nipple (180) and to the oil supply tube (220). Tighten the coupling nuts by hand.
   (3) Connect the damping oil tube (200) to the nipple (210) of the No. 5 bearing support and to the oil supply tube (170). Tighten the coupling nuts by hand.
CAUTION: USE TWO WRENCHES TO REMOVE OR INSTALL THE TUBE COUPLING NUTS:
  • ONE WRENCH TO HOLD THE UNION, AND
  • ONE TO LOOSEN OR TIGHTEN THE COUPLING NUT.
THIS PREVENTS DAMAGE TO THE PARTS.
   (4) Make sure the oil tubes are installed without strain.
   (5) TORQUE both coupling nuts of the oil tube (170) to between 300 and 270 lbf.in (3.39 and 3.05 m.daN ) T.
   (6) Safety the coupling nuts with CP8001lockwire 0.032 in. (0.8 mm) dia. or CP8002lockwire 0.032 in. (0.8 mm) dia.
   (7) Torque of the damping oil tube
CAUTION: HOLD THE DAMPING OIL TUBE WITH SOFT NOSE PLIERS WHEN YOU TORQUE THE UNION NUT. THIS IS TO PREVENT DAMAGE TO THE TUBE.
     (a) Hold the damping oil tube with PLIERS - NOSE, SOFT, LONG.
TORQUE the union nut of the damping oil tube (200) connected to nipple of the No. 5 bearing support to between 100 and 90 lbf.in (1.13 and 1.02 m.daN ) T.
   (8) Make sure that the damping oil tube (200) is installed without strain as follows:
     (a) Loosen the union nut of the damping oil tube connected on the oil tube (170).
     (b) Make sure that the damping oil tube is installed without strain, and in line with the nipple of the oil tube (170).
     (c) If necessary, bend the damping oil tube in bent sections. Do not bend the tube near end fittings.
   (9) Reconnect the coupling nut of the damping oil tube (200) to the oil tube (170). Tighten the coupling nut with hand.
   (10) Torque of the damping oil tube
CAUTION: HOLD THE DAMPING OIL TUBE WITH SOFT NOSE PLIERS WHEN YOU TORQUE THE UNION NUT. THIS IS TO PREVENT DAMAGE TO THE TUBE.
     (a) Hold the damping oil tube with PLIERS - NOSE, SOFT, LONG.
TORQUE the union nut of damping oil tube (200) to between 100 and 90 lbf.in (1.13 and 1.02 m.daN ) T.
   (11) Do these steps to check the Dim. A
     (a) Do a check of Dim. A in four equally spaced locations. Dim. A must be minimum 0.078 in. (1.98 mm).
NOTE: The torqueing step must not cause the oil supply line to move.
     (b) If the Dim. A criterion is less than 0.078 in. (2 mm), do these steps:
       1 Do a visual inspection of the oil supply line.
       2 Do a torque check of the two coupling nuts of the oil supply tube (100).
       3 Disconnect the oil supply tube (100).
       4 Install the oil supply tube (100) again to get Dim. A within the minimum criterion of 0.078 in. (1.98 mm).
     (c) Make sure that there is no perforation in the insulation blanket of the oil supply tube.
     (d) If the Dim. A criterion stays less than 0.078 in. (1.98 mm) or if there is perforation in the insulation blanket, replace the oil supply tube (100).
   (12) Safety the coupling nuts with CP8001lockwire 0.032 in. (0.8 mm) dia. or CP8002lockwire 0.032 in. (0.8 mm) dia.
5. Close-up
Subtask 72-56-00-410-057-A ** ON A/C NOT FOR ALL
A. Close Access
   (1) Make sure that the work area is clean and clear of tools and other items.
   (2) Install the flange assembly and the flame arrestor (Ref. AMM TASK 72-56-00-400-001).
   (3) Remove the WARNING NOTICE(S).
Subtask 72-56-00-710-050-A ** ON A/C NOT FOR ALL
B. Do these checks
   (1) Do a minimum idle check (Ref. AMM TASK 71-00-00-710-006).
   (2) Do a check of the oil level (Ref. AMM TASK 12-13-79-610-002) or (Ref. AMM TASK 12-13-79-610-002)
[Rev.10 from 2021] 2026.04.01 13:00:18 UTC
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