W DOC AIRBUS | AMM A320F

Deactivation of the Drain Valves of the Green, Yellow and Blue Hydraulic Reservoirs

TASK 29-10-00-040-007-A
Deactivation of the Drain Valves of the Green, Yellow and Blue Hydraulic Reservoirs

WARNING: OBEY THE HYDRAULIC SAFETY PROCEDURES.
WARNING: PUT THE SAFETY DEVICES AND THE WARNING NOTICES IN POSITION BEFORE YOU START A TASK ON OR NEAR:
  • THE FLIGHT CONTROLS
  • THE FLIGHT CONTROL SURFACES
  • THE LANDING GEAR AND THE RELATED DOORS
  • COMPONENTS THAT MOVE.
MOVEMENT OF COMPONENTS CAN KILL OR CAUSE INJURY TO PERSONS AND/OR CAN CAUSE DAMAGE TO THE EQUIPMENT.
ZONE: 147
ZONE: 190
ZONE: 196
FIN: 2264GM
1. Reason for the Job
MMEL 29-10-10A
HYDRAULIC RESERVOIR DRAIN VALVE
2. Job Set-up Information
 A. Fixtures, Tools, Test and Support Equipment
REFERENCE
QTY
DESIGNATION
No specific
AR
CONTAINER - HYDRAULIC FLUID RESISTANT
No specific
1
WRENCH - SPANNER, FLAT
No specific
Torque wrench: range to between 11 and 9 m.N (97.35 and 79.65 lbf.in ) T
 B. Work Zones and Access Panels
ZONE/ACCESS
ZONE DESCRIPTION
147
MAIN GEAR WELL AND HYDRAULIC COMPARTMENT
190
BELLY FAIR, AIR CONDITIONING & HYD COMPT
196
HYDRAULIC COMPT AND FAIRINGS
191GB, 196BB, 197EB
 C. Expendable Parts
FIG.ITEM
DESIGNATION
IPC-CSN
2
CAP
AIPC 29-11-03-04-240
2
CAP
AIPC 29-11-83-01-180
2
CAP
AIPC 29-12-04-11-270
2
CAP
AIPC 29-12-84-08-430
2
CAP
AIPC 29-13-03-04-250
2
CAP
AIPC 29-13-83-01-230
 D. Referenced Information
REFERENCE
DESIGNATION
TASK 12-12-29-611-001-A
Fill the Hydraulic Fluid Reservoir with a Hand Pump
TASK 12-12-29-611-002-A
Fill the Hydraulic Fluid Reservoir with a Hydraulic Service Cart
TASK 29-00-00-864-001-A
Put the Related Hydraulic System in the Depressurized Configuration before Maintenance Action
TASK 29-00-00-910-002-A
Safety Procedures of the Hydraulic System
TASK 32-12-00-010-001-A
Open the Main Gear Doors for Access
TASK 32-12-00-410-001-A
Close the Main Gear Doors after Access
F Drain Valve of the Green Hydraulic Reservoir
F Drain Valve of the Blue Hydraulic Reservoir
F Drain Valve of the Yellow Hydraulic Reservoir
3. Job Set-up
Subtask 29-10-00-860-129-A
A. Aircraft Maintenance Configuration
   (1) Obey the hydraulic safety procedures (Ref. AMM TASK 29-00-00-910-002).
   (2) Make sure that the hydraulic systems are depressurized and put them in the maintenance configuration
(Ref. AMM TASK 29-00-00-864-001).
   (3) Put the CONTAINER - HYDRAULIC FLUID RESISTANT below the related drain valve.
Subtask 29-10-00-010-098-A
B. Get Access
   (1) Open the related service panel doors:
     (a) For the Yellow hydraulic drain valve: 196BB.
     (b) For the Green hydraulic drain valve: right MLG door (Ref. AMM TASK 32-12-00-010-001).
     (c) For the Blue hydraulic drain valve: 197EB.
   (2) Open Electrical Service Panel door 191GB and set the HYD COMPT WHEEL WELL LIGHT to the ON position.
4. Procedure
Subtask 29-10-00-040-054-A
A. Deactivation of the Drain Valve of the Green Hydraulic Reservoir
F Drain Valve of the Green Hydraulic Reservoir
   (1) Install the AIPC 29-11-03-04-240 CAP (2) or AIPC 29-11-83-01-180 CAP (2) on the drain valve (1).
   (2) With the WRENCH - SPANNER, FLAT, hold the drain valve (1) in position.
   (3) TORQUE the cap (2) to between 11 and 9 m.N (97.35 and 79.65 lbf.in ) T.
Subtask 29-10-00-040-055-A
B. Deactivation of the Drain Valve of the Blue Hydraulic Reservoir
F Drain Valve of the Blue Hydraulic Reservoir
   (1) Install the AIPC 29-12-04-11-270 CAP (2) or AIPC 29-12-84-08-430 CAP (2) on the drain valve (1).
   (2) With the WRENCH - SPANNER, FLAT, hold the drain valve (1) in position.
   (3) TORQUE the cap (2) to between 11 and 9 m.N (97.35 and 79.65 lbf.in ) T.
Subtask 29-10-00-040-056-A
C. Deactivation of the Drain Valve of the Yellow Hydraulic Reservoir
F Drain Valve of the Yellow Hydraulic Reservoir
   (1) Install the AIPC 29-13-03-04-250 CAP (2) or AIPC 29-13-83-01-230 CAP (2) on the drain valve (1).
   (2) With the WRENCH - SPANNER, FLAT, hold the drain valve (1) in position.
   (3) TORQUE the cap (2) to between 11 and 9 m.N (97.35 and 79.65 lbf.in ) T.
5. Close-up
Subtask 29-10-00-860-132-A
A. Aircraft Maintenance Configuration
   (1) Make sure that the work area is clean and clear of tools and other items.
   (2) Remove all the fixtures, tools, test and support equipment used during this procedure.
   (3) Make an entry in the logbook.
   (4) Put the related hydraulic system back to its initial configuration (Ref. AMM TASK 29-00-00-864-001).
   (5) Make sure that fluid level in the reservoirs of the hydraulic systems is correct. Add fluid as necessary (Ref. AMM TASK 12-12-29-611-001) or (Ref. AMM TASK 12-12-29-611-002).
   (6) Close the related service panel doors:
     (a) For the Yellow hydraulic drain valve: 196BB.
     (b) For the Green hydraulic drain valve: right MLG door (Ref. AMM TASK 32-12-00-410-001).
     (c) For the Blue hydraulic drain valve: 197EB.
   (7) Set the HYD COMPT WHEEL WELL LIGHT switch to the OFF position.
   (8) Close Electrical Service Panel door 191GB.
[Rev.10 from 2021] 2026.04.01 00:13:49 UTC
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