W DOC AIRBUS | AMM A320F

Installation of the Inlet Cone [PW11]

TASK 72-11-01-400-801-A
Installation of the Inlet Cone

WARNING: BE CAREFUL WHEN YOU DO WORK ON THE ENGINE AFTER SHUTDOWN. THE ENGINE CAN STAY HOT FOR A LONG TIME. IF YOU DO NOT OBEY THIS INSTRUCTION, INJURY CAN OCCUR.
WARNING: BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.
ZONE: 400
1. Reason for the Job
Self explanatory
2. Job Set-up Information
 A. Fixtures, Tools, Test and Support Equipment
REFERENCE
QTY
DESIGNATION
No specific
Torque wrench: range to between 60 and 50 lbf.in (0.68 and 0.57 m.daN ) T
PWA29855-2
2
PIN - ALIGNING
 B. Consumable Materials
REFERENCE
DESIGNATION
(Material No.P06-054)
compound, paste, anti-seize
 C. Work Zones and Access Panels
ZONE/ACCESS
ZONE DESCRIPTION
400
POWER PLANT, NACELLES AND PYLONS
 D. Referenced Information
REFERENCE
DESIGNATION
TASK 70-27-00-910-804-A
SPOP 208 - Degreasing of Parts by Solvent Wiping
TASK 71-00-00-860-833-A
Procedure to Prevent Engine Motoring
TASK 72-11-01-220-801-A
Detailed Visual Inspection of the Inlet Cone
TASK 72-11-06-210-802-A
Visual Inspection of the Fan Hub Assembly
F Inlet Cone
F Inlet Cone - (Fan Hub Inspection Locations)
F Inlet Cone - (Alignment of the Inlet Cone)
3. Job Set-up
Subtask 72-11-01-941-051-A ** ON A/C NOT FOR ALL
A. Safety Precautions
   (1) Make sure that you did the procedure to prevent engine motoring
(Ref. AMM TASK 71-00-00-860-833).
4. Procedure
CAUTION: WIPE CLEAN ALL PARTS AND TOOLS AS NECESSARY TO REMOVE UNWANTED DEBRIS AND PREVENT DAMAGE TO THE ENGINE.
Subtask 72-11-01-420-050-A ** ON A/C NOT FOR ALL
A. Installation of the Inlet Cone
CAUTION: REMOVE THE PROTECTION COVERS FROM THE OPENINGS AS NECESSARY TO PREVENT ENGINE DAMAGE.
   (1) Make sure that you remove all the necessary COVER - PROTECTION to prevent damage to the engine.
   (2) Make sure that the 636-1100-3GSE INLET COWL PROTECT COVER or the MAT - PROTECTIVE is in position in the fan case.
CAUTION: WHEN YOU INSTALL THE INLET CONE, OBEY THESE INSTRUCTIONS:
  • USE ALIGNMENT PINS
  • IF ALIGNMENT PINS ARE NOT AVAILABLE, USE THE ALIGNMENT MARK THAT YOU APPLIED BEFORE YOU REMOVED THE INLET CONE
  • IF YOU DO NOT INSTALL THE INLET CONE THAT YOU REMOVED, MAKE SURE THAT THE NEW INLET CONE IS VISUALLY CORRECTLY ALIGNED.
IF YOU DO NOT OBEY THESE INSTRUCTIONS, THERE IS A RISK THAT THE INLET CONE AND FAN HUB HOLES WILL NOT BE CORRECTLY ALIGNED. THUS, YOU CAN CAUSE DAMAGE TO ENGINE PARTS WHEN YOU INSTALL THE BOLTS.
   (3) Do a visual inspection of the inlet cone flange hole and mating face, counterweight flange scallops, holes, inner and outer surfaces and inlet cone flange scallops on the fan hub assembly for nicks, dents and scratches as follows:
F Inlet Cone ** ON A/C NOT FOR ALL
F Inlet Cone - (Fan Hub Inspection Locations) ** ON A/C NOT FOR ALL
     (a) If necessary, clean the areas to be inspected by SPOP 208, wipe method (Ref. AMM TASK 70-27-00-910-804).
     (b) If damage is found on the fan hub (Ref. AMM TASK 72-11-06-210-802).
     (c) If damage is found on the inlet cone (1) (Ref. AMM TASK 72-11-01-220-801).
   (4) Install the inlet cone (1) on the fan hub as follows:
F Inlet Cone ** ON A/C NOT FOR ALL
     (a) Make sure that the lock ring is installed correctly before you install the inlet cone (1).
     (b) Find the alignment marks on the fan hub and inlet cone (1).
     (c) Install the two PWA29855-2 PIN - ALIGNING to the fan hub.
     (d) Align and install the inlet cone (1) to the fan hub.
F Inlet Cone - (Alignment of the Inlet Cone) ** ON A/C NOT FOR ALL
     (e) Apply P06-054compound, paste, anti-seize to the threads of the five bolts (3).
NOTE: For new or refurbished bolts or nuts with baked on lubricant, do not do the wet application.
     (f) Install the inlet cone (1) with the three bolts (3) and washers (2).
     (g) Remove the two PWA29855-2 PIN - ALIGNING from the fan hub.
     (h) Install two bolts (3) and washers (2) where the pins were located.
     (i) Tighten the five bolts (3) equally in an opposite pattern and in small increments until the inlet cone (1) is in full contact with the fan hub.
     (j) TORQUE the five bolts (3) to between 60 and 50 lbf.in (0.68 and 0.57 m.daN ) T equally in an opposite pattern and in small increments until the same torque indication holds.
   (5) Install the inlet cone cover (6) as follows:
     (a) Apply P06-054compound, paste, anti-seize to the threads of the five bolts (5).
NOTE: For new or refurbished bolts or nuts with baked on lubricant, do not do the wet application.
     (b) Install the inlet cone cover (6) to the inlet cone (1) with the five bolts (5) and washers (4).
     (c) TORQUE the five bolts (5) to between 60 and 50 lbf.in (0.68 and 0.57 m.daN ) T equally in an opposite pattern until the same torque indication holds.
   (6) Remove the 636-1100-3GSE INLET COWL PROTECT COVER or the MAT - PROTECTIVE from the inside of the fan case.
   (7) Examine the assembly for foreign objects, damage and correct assembly.
5. Close-up
Subtask 72-11-01-860-051-A ** ON A/C NOT FOR ALL
A. Put the aircraft back to its initial configuration.
   (1) Make sure that the work area is clean and clear of tools and other items.
   (2) Remove the WARNING NOTICE(S).
[Rev.10 from 2021] 2026.04.01 02:47:40 UTC
"Aviabrain" 2025