DOC AIRBUS | AMM A320FClosing of the Thrust Reverser Doors [CFMB]
TASK 78-36-00-410-040-B
Closing of the Thrust Reverser Doors
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
B. Consumable Materials
C. Work Zones and Access Panels
D. Referenced Information
3. Job Set-up
Subtask 78-36-00-860-050-A ** ON A/C NOT FOR ALL
Subtask 78-36-00-640-050-A ** ON A/C NOT FOR ALL
(2) Connect the hose of the HIX4001 PUMP-ACTUATOR, FAN REVERSER to the quick disconnect on the hydraulic junction box.
Subtask 78-36-00-410-050-A ** ON A/C NOT FOR ALL
Subtask 78-36-00-440-050-A ** ON A/C NOT FOR ALL Subtask 78-36-00-410-051-A ** ON A/C NOT FOR ALL
[Rev.10 from 2021]
2026.04.01 03:26:22 UTC
Closing of the Thrust Reverser Doors
WARNING:
BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.
1. Reason for the JobSelf 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 43.5 and 26 lbf.in (0.49 and 0.29 m.daN )  | |
| HIX4001 | 1 | PUMP-ACTUATOR, FAN REVERSER |
| REFERENCE | DESIGNATION |
|---|---|
| (Material No.03FDG1) | Mineral Oil base Grease-Anti-Fretting - - |
| (Material No.03GBB1) | Synthetic Oil base Grease-General Purpose Clay Thickened - |
| (Material No.03HBD9) | Synthetic Ester base Grease-General Purpose Low Temp - |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| 400 | POWER PLANT, NACELLES AND PYLONS |
| FOR [1000EM1] (ENGINE-1) | |
| 437AL, 438AR | |
| FOR [1000EM2] (ENGINE-2) | |
| 447AL, 448AR | |
| 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 |
T-Ring and V-Groove Lubrication AreaSubtask 78-36-00-860-050-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 78-36-00-010-054-A ** ON A/C NOT FOR ALL (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.
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 78-36-00-040-051-A ** ON A/C NOT FOR ALL 4. Procedure(1) FOR [1000EM1] (ENGINE-1)
437AL, 438AR
(2) FOR [1000EM2] (ENGINE-2)
447AL, 448AR.
Subtask 78-36-00-640-050-A ** ON A/C NOT FOR ALL
A. Lubricate the V-Groove
(1) Inspect the J-Ring on the forward position of the thrust reverser.
Look for a clean, thin coating of grease covering the entire length and depth of each blade.
(2) Inspect the V-Groove and circumference. Look for a clean, thin coating of grease covering the entire length and depth of each groove.
(3) If all mating surfaces are lubricated and are clear of excess grease and dirt, no further action is required. If any mating surface is dry, or if excess grease and dirt, or other debris is detected on blade or in grooves, continue this procedure.
(4) Clean mating surfaces. Use a clean, dry wiping cloth to remove all dirt, excess old lubricant, and any other foreign matter from all "J" and "V" grooves.
(5) Apply a thin coating of Synthetic Oil base Grease-General Purpose Clay Thickened - (Material No.03GBB1) or Mineral Oil base Grease-Anti-Fretting - - (Material No.03FDG1) or Synthetic Ester base Grease-General Purpose Low Temp - (Material No.03HBD9) , to all mating surfaces of the "J" ring and "V" grooves. Avoid excess which could squeese out when doors are closed. Method of prescribed application is to wipe grease on with a clean cloth or use a clean brush.
Subtask 78-36-00-480-051-A ** ON A/C NOT FOR ALL (1) Inspect the J-Ring on the forward position of the thrust reverser.
Look for a clean, thin coating of grease covering the entire length and depth of each blade.
(2) Inspect the V-Groove and circumference. Look for a clean, thin coating of grease covering the entire length and depth of each groove.
(3) If all mating surfaces are lubricated and are clear of excess grease and dirt, no further action is required. If any mating surface is dry, or if excess grease and dirt, or other debris is detected on blade or in grooves, continue this procedure.
(4) Clean mating surfaces. Use a clean, dry wiping cloth to remove all dirt, excess old lubricant, and any other foreign matter from all "J" and "V" grooves.
(5) Apply a thin coating of Synthetic Oil base Grease-General Purpose Clay Thickened - (Material No.03GBB1) or Mineral Oil base Grease-Anti-Fretting - - (Material No.03FDG1) or Synthetic Ester base Grease-General Purpose Low Temp - (Material No.03HBD9) , to all mating surfaces of the "J" ring and "V" grooves. Avoid excess which could squeese out when doors are closed. Method of prescribed application is to wipe grease on with a clean cloth or use a clean brush.
CAUTION:
DO NOT USE A HYDRAULIC PUMP WITH A FLOW MORE THAN 3.66 IN.3. (60 CM3) PER EACH HAND PUMP TRAVEL OR DAMAGE OF THE HYDRAULIC JUNCTION BOXES COULD RESULT.
B. Connect Hand Pump NOTE: Two hand pumps should be used, one for each door.
(1) Remove the cap from quick disconnect on junction box. (2) Connect the hose of the HIX4001 PUMP-ACTUATOR, FAN REVERSER to the quick disconnect on the hydraulic junction box.
C. Close the doors.
(2) Disconnect the quick release pin from the bracket of the forward frame.
(3) Attach the hold-open rod to the upper or lower bracket on the adapter ring assembly with the quick release pin.
(4) If the half doors were opened to the 45 degree position:
(b) TORQUE the nut to between 43.5 and 26 lbf.in (0.49 and 0.29 m.daN ).
(5) Open the relief valve on the hand pump to let the thrust reverser door close.
(6) Push the thrust reverser doors together to engage the door latches.
(7) Make sure that the latch hooks on the right thrust reverser door are correctly engaged in the stirrups (eyebolts) on the left thrust reverser door.
(8) Push each latch handle closed until it snaps over-center and the handle stays in the thrust reverser door slots.
Subtask 78-36-00-680-051-A ** ON A/C NOT FOR ALL WARNING:
SUDDEN CLOSURE OF HALF DOORS COULD CAUSE SERIOUS INJURY TO PERSONNEL. ALL PERSONNEL MUST BE CLEAR OF AREA UNDER AND BETWEEN HALF DOORS DURING OPENING OR CLOSING OF REVERSER.
CAUTION:
INSTALL THE QUICK RELEASE PIN WITH THE HEAD FACING OUTWARDS TO PREVENT DAMAGES.
CAUTION:
MAKE SURE THE RING ON THE QUICK RELEASE PIN IS DOWN. THE RING RUBS ON THE TUBES. IF THE RING IS NOT DOWN IT CAN RUB ON THE TUBES AND CAUSE DAMAGE.
CAUTION:
MAKE SURE WHILE CLOSING THE REVERSER COWL THAT THE CABLE THAT ATTACHES THE QUICK RELEASED PIN (UPPER AND LOWER) OF THE HOLD OPEN ROD IS NOT TRAPPED BETWEEN V-GROOVE AND J-RING OR DAMAGE MAY OCCUR TO BOTH PARTS.
(1) Operate the hand pump to pressurize opening actuator and take the load off hold open rod. (2) Disconnect the quick release pin from the bracket of the forward frame.
(3) Attach the hold-open rod to the upper or lower bracket on the adapter ring assembly with the quick release pin.
(4) If the half doors were opened to the 45 degree position:
CAUTION:
MAKE SURE THAT THE RED BOLT AND NUT ARE INSTALLED IN THE UPPER LUG OF THE HOLD-OPEN ROD FITTING BEFORE YOU CLOSE THE THRUST REVERSER DOOR. IF THE RED BOLT AND NUT ARE NOT INSTALLED, IT CAN CAUSE DAMAGE TO ENGINE COMPONENTS.
(a) Put the red bolt and nut in the upper lug of the hold open rod fitting on the inner cowl. (b) TORQUE the nut to between 43.5 and 26 lbf.in (0.49 and 0.29 m.daN )
. (5) Open the relief valve on the hand pump to let the thrust reverser door close.
(6) Push the thrust reverser doors together to engage the door latches.
(7) Make sure that the latch hooks on the right thrust reverser door are correctly engaged in the stirrups (eyebolts) on the left thrust reverser door.
(8) Push each latch handle closed until it snaps over-center and the handle stays in the thrust reverser door slots.
D. Drain the fluid from the door opening actuator.
(2) Let the fluid in the actuator drain into the hand pump for a minimum of one minute.
Subtask 78-36-00-080-051-A ** ON A/C NOT FOR ALL NOTE: The fluid should always be drained from the actuator, if not, there will not be enough fluid in the pump to close the other door. If more fluid is added to the pump there will be too much fluid in the pump when the door is closed.
(1) Open the relief valve on the HIX4001 PUMP-ACTUATOR, FAN REVERSER. (2) Let the fluid in the actuator drain into the hand pump for a minimum of one minute.
E. Disconnect Hand Pump
(1) Disconnect the hose of hand pump the from the quick disconnect on the hydraulic junction box.
(2) Put the cap on the quick disconnect.
5. Close-up(1) Disconnect the hose of hand pump the from the quick disconnect on the hydraulic junction box.
(2) Put the cap on the quick disconnect.
Subtask 78-36-00-440-050-A ** ON A/C NOT FOR ALL Subtask 78-36-00-410-051-A ** ON A/C NOT FOR ALL
B. 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).
(5) Remove the 98D27803000000 LOCKING TOOL-FLAP SLAT LEVER,INT. POSITION or the 98D27803500001 LOCKING TOOL ZERO POS from the flap and slat lever, if installed.
(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).
(5) Remove the 98D27803000000 LOCKING TOOL-FLAP SLAT LEVER,INT. POSITION or the 98D27803500001 LOCKING TOOL ZERO POS from the flap and slat lever, if installed.