W DOC AIRBUS | AMM A320F

Installation of the Throttle Valve

TASK 32-42-76-400-001-A
Installation of the Throttle Valve

WARNING: MAKE SURE THAT ALL THE CIRCUITS IN MAINTENANCE ARE ISOLATED BEFORE YOU SUPPLY ELECTRICAL POWER TO THE AIRCRAFT. UNWANTED ELECTRICAL POWER CAN BE DANGEROUS.
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.
WARNING: OBEY THE HYDRAULIC SAFETY PROCEDURES.
WARNING: BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.
FIN: 2581GM ** 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
WARNING NOTICE(S)
No specific
Torque wrench: range to between 3.47 and 3.19 m.daN (25.59 and 23.53 lbf.ft ) T
No specific
Torque wrench: range to between 5.9 and 5.4 m.daN (43.51 and 39.82 lbf.ft ) T
 B. Consumable Materials
REFERENCE
DESIGNATION
(Material No.02ABA1)
Phosphate Ester Hydraulic Fluid-General Power - -
(Material No.04JMD9)
Top Coat Polyurethane-- Decorative Furnishing
 C. Expendable Parts
FIG.ITEM
DESIGNATION
IPC-CSN
3
PACKING
AIPC 32-42-03-04-050
 D. Referenced Information
REFERENCE
DESIGNATION
TASK 29-00-00-910-002-A
Safety Procedures of the Hydraulic System
TASK 29-10-00-864-001-A
Depressurize the Green Hydraulic System
TASK 29-14-00-614-001-A
Depressurization of the Hydraulic Reservoirs
TASK 29-23-00-860-001-A
Disconnection of the Isolation Coupling of the Power Transfer Unit (PTU)
TASK 29-23-00-860-002-A
Connection of the Isolation Coupling of the Power Transfer Unit (PTU)
TASK 32-12-00-410-001-A
Close the Main Gear Doors after Access
TASK 32-42-00-710-001-A
Operational Check of the Normal Braking System
TASK 51-75-13-916-002-A
Repair to a layer of Corrosion Preventive Compound
F Throttle Valve 2581GM
3. Job Set-up
Subtask 32-42-76-860-051-A ** ON A/C NOT FOR ALL
A. Aircraft Maintenance Configuration
   (1) Make sure that the PTU isolation coupling is disconnected (Ref. AMM TASK 29-23-00-860-001).
   (2) Make sure that the Green hydraulic system is depressurized (Ref. AMM TASK 29-10-00-864-001).
   (3) Make sure that the reservoir of the Green hydraulic system is depressurized (Ref. AMM TASK 29-14-00-614-001).
Subtask 32-42-76-865-053-A ** ON A/C NOT FOR ALL
B. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged:
PANELDESIGNATIONFINLOCATION
** ON A/C NOT FOR ALL
121VUHYDRAULIC/BRAKING AND STEERING/SYS2/SPLY4GGM36
121VUHYDRAULIC/BRAKING AND STEERING/SYS2/CTL3GGM35
121VUHYDRAULIC/BRAKING AND STEERING/SYS1/CTL1GGM34
121VUHYDRAULIC/BRAKING AND STEERING/SYS1/IND AND/SPLY2GGM33
121VUHYDRAULIC/G HYD/PUMP ENG1/CTL1701GKR35
121VUHYDRAULIC/G HYD/PUMP ENG1/MONG1702GKR34
Subtask 32-42-76-941-051-A ** ON A/C NOT FOR ALL
C. Safety Precautions
   (1) Make sure that the WARNING NOTICE(S) are in position to tell persons not to pressurize the Green hydraulic system:
  • On panel 40VU in the cockpit
  • On the ground service panel of the Green hydraulic system.
Subtask 32-42-76-560-050-A ** ON A/C NOT FOR ALL
D. Prearation for Installation
   (1) Clean the component interfaces and the adjacent area.
   (2) Do an inspection of the component interfaces and the adjacent area.
   (3) Make sure that the parts retained from the removed component are clean and in the correct condition.
   (4) Obey the hydraulic safety procedures (Ref. AMM TASK 29-00-00-910-002).
   (5) Apply Phosphate Ester Hydraulic Fluid-General Power - - (Material No.02ABA1) to the threads of the throttle valve (1).
   (6) Apply Phosphate Ester Hydraulic Fluid-General Power - - (Material No.02ABA1) to the new AIPC 32-42-03-04-050 PACKING (3).
4. Procedure
Subtask 32-42-76-420-051-A ** ON A/C NOT FOR ALL
A. Installation of the Throttle Valve
   (1) Remove the blanking plugs.
   (2) Put the packing (3) on the throttle valve (1).
   (3) Install the throttle valve (1) in the elbow (4).
CAUTION: BE CAREFUL WHEN YOU INSTALL THE THROTTLE VALVE. A RED ARROW, IDENTIFIED AS 'F' IS SHOWN ON SOME THROTTLE VALVES. THE ARROW SHOWS THE DIRECTION OF THE THROTTLE AND NOT THE DIRECTION OF THE FLOW. THUS, WHEN YOU INSTALL THE THROTTLE VALVE, MAKE SURE THAT THE ARROW POINTS AWAY FROM THE AUTOMATIC SELECTOR. IF YOU INSTALL THE THROTTLE VALVE IN THE INCORRECT DIRECTION, YOU CAN CAUSE DAMAGE TO THE SYSTEM.
   (4) TORQUE the throttle valve (1) to between 3.47 and 3.19 m.daN (25.59 and 23.53 lbf.ft ) T.
   (5) Put the elbow (4) with the throttle valve (1) in position. Connect the connectors (2) and (5) to the throttle valve (1) and the automatic selector (6).
   (6) TORQUE the connectors (2) and (5) to between 5.9 and 5.4 m.daN (43.51 and 39.82 lbf.ft ) T.
   (7) Make a mark on the connections with Top Coat Polyurethane-- Decorative Furnishing (Material No.04JMD9) .
Subtask 32-42-76-865-054-A ** ON A/C NOT FOR ALL
B. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):
PANELDESIGNATIONFINLOCATION
** ON A/C NOT FOR ALL
121VUHYDRAULIC/BRAKING AND STEERING/SYS2/SPLY4GGM36
121VUHYDRAULIC/BRAKING AND STEERING/SYS2/CTL3GGM35
121VUHYDRAULIC/BRAKING AND STEERING/SYS1/CTL1GGM34
121VUHYDRAULIC/BRAKING AND STEERING/SYS1/IND AND/SPLY2GGM33
121VUHYDRAULIC/G HYD/PUMP ENG1/CTL1701GKR35
121VUHYDRAULIC/G HYD/PUMP ENG1/MONG1702GKR34
Subtask 32-42-76-860-052-A ** ON A/C NOT FOR ALL
C. Preparation for Test
   (1) Connect the PTU isolation coupling (Ref. AMM TASK 29-23-00-860-002).
Subtask 32-42-76-710-050-A ** ON A/C NOT FOR ALL
D. Test
   (1) Do the operational check of the normal braking system (Ref. AMM TASK 32-42-00-710-001).
   (2) Make sure that there is no hydraulic fluid leakage from the throttle valve 2581GM. Leaks are not permitted.
5. Close-up
Subtask 32-42-76-410-050-A ** ON A/C NOT FOR ALL
A. Close Access
   (1) Apply corrosion protection to the connectors (2) and (5) and the adjacent areas (Ref. AMM TASK 51-75-13-916-002).
   (2) Remove the container.
   (3) Remove the WARNING NOTICE(S).
   (4) Remove the access platform(s).
   (5) Make sure that the work area is clean and clear of tools and other items.
   (6) Close the right MLG door (Ref. AMM TASK 32-12-00-410-001).
   (7) Remove the ground support and maintenance equipment, the special and standard tools and all other items.
[Rev.10 from 2021] 2026.04.01 00:48:27 UTC
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