W DOC AIRBUS | AMM A320F

Installation of the Lower Rod Supply Hose [CFMB]

TASK 78-31-49-400-009-B
Installation of the Lower Rod Supply Hose

WARNING: WEAR A FACE SHIELD WHICH IS RESISTANT TO HIGH PRESSURE JETS WHEN YOU WORK ON PRESSURIZED SYSTEMS.
WARNING: DO NOT GET THE FLUID ON YOUR SKIN OR IN YOUR EYES. IF YOU DO:
  • FLUSH IT AWAY WITH CLEAN WATER
  • GET MEDICAL AID.
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.
CAUTION: MAKE SURE THERE IS NO UNWANTED MATERIAL IN THE PORTS AND ORIFICES OR DAMAGE CAN OCCUR.
CAUTION: YOU MUST INSTALL HYDRAULIC TUBES WITH HYDRAULIC FLUID AS LUBRICANT.
ZONE: 400
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
ACCESS PLATFORM 1M(3 FT)
No specific
AR
WARNING NOTICE(S)
No specific
Torque wrench: range to between 70 and 61 lbf.in (0.79 and 0.69 m.daN ) T
No specific
Torque wrench: range to between 150 and 130 lbf.in (1.70 and 1.47 m.daN ) T
 B. Consumable Materials
REFERENCE
DESIGNATION
(Material No.CP2245)
finish paint EA4 blue 5991
 C. Work Zones and Access Panels
ZONE/ACCESS
ZONE DESCRIPTION
400
POWER PLANT, NACELLES AND PYLONS
FOR [1000EM1] (ENGINE-1)
437AL, 438AR
FOR [1000EM2] (ENGINE-2)
447AL, 448AR
 D. Referenced Information
REFERENCE
DESIGNATION
TASK 71-13-00-010-040-B
Opening of the Fan Cowl Doors
TASK 71-13-00-410-040-B
Closing of the Fan Cowl Doors
TASK 78-30-00-081-041-B
Make the Thrust Reverser Serviceable after Maintenance
TASK 78-30-00-481-041-B
Make the Thrust Reverser Unserviceable for Maintenance
TASK 78-30-00-710-040-B
Thrust Reverser Hydraulic System Bleed Procedure
TASK 78-32-41-860-002-A
Manual Stowing of the Blocker Door
F Lower Rod Supply Hose
3. Job Set-up
Subtask 78-31-49-860-104-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) pushbutton switch 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 ACCESS PLATFORM 1M(3 FT) is in position.
Subtask 78-31-49-010-161-A ** ON A/C NOT FOR ALL
B. Make sure that the fan cowl doors are open: (Ref. AMM TASK 71-13-00-010-040)
   (1) FOR [1000EM1] (ENGINE-1)
437AL 438AR
   (2) FOR [1000EM2] (ENGINE-2)
447AL 448AR
Subtask 78-31-49-040-149-A ** ON A/C NOT FOR ALL
C. Make sure that the thrust reverser is unserviceable (Ref. AMM TASK 78-30-00-481-041).
4. Procedure
Subtask 78-31-49-420-095-A ** ON A/C NOT FOR ALL
A. Installation of the Lower Rod Supply Hose
CAUTION: WHEN YOU PUT THE LOWER HYDRAULIC HOSES IN POSITION, MAKE SURE THAT THE HOSE CURVE IS OUTBOARD AND AWAY FROM THE ENGINE. IF THE HOSE CURVE IS INBOARD, THE HOSES CAN RUB ON ENGINE PARTS DURING REVERSE OPERATION AND BECOME DAMAGED.
   (1) Remove the protective covers from the open connections.
   (2) Connect the lower rod supply hose to the lower rod swivel joint.
   (3) Connect the lower rod supply hose to the lower hydraulic actuator.
   (4) TORQUE the coupling nuts to between 150 and 130 lbf.in (1.70 and 1.47 m.daN ) T.
   (5) Attach the lower head shield to the forward frame with the bolts and nuts.
   (6) TORQUE the nuts to between 70 and 61 lbf.in (0.79 and 0.69 m.daN ) T.
NOTE: Apply a witness line of finish paint EA4 blue 5991 (Material No.CP2245) on all nuts and connections after they are torqued.
5. Close-up
Subtask 78-31-49-860-134-A ** ON A/C NOT FOR ALL
A. Manually move the blocker doors to the closed position (Ref. AMM TASK 78-32-41-860-002).
Subtask 78-31-49-440-100-A ** ON A/C NOT FOR ALL
B. Make the thrust reverser serviceable: (Ref. AMM TASK 78-30-00-081-041).
Subtask 78-31-49-410-111-A ** ON A/C NOT FOR ALL
C. 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 71-13-00-410-040)
     (a) FOR [1000EM1] (ENGINE-1)
437AL 438AR
     (b) FOR [1000EM2] (ENGINE-2)
447AL 448AR
   (3) Remove the access platform(s).
   (4) Remove the WARNING NOTICE(S).
Subtask 78-31-49-710-065-A ** ON A/C NOT FOR ALL
D. Bleed the air from the thrust reverser hydraulic system. (Ref. AMM TASK 78-30-00-710-040)
[Rev.10 from 2021] 2026.04.01 03:25:14 UTC
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