DOC AIRBUS | AMM A320FRemoval of the Vent Door Mechanism
TASK 52-32-21-000-003-A
Removal of the Vent Door Mechanism
1. Reason for the Job
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
B. Work Zones and Access Panels
C. Referenced Information
3. Job Set-up
Subtask 52-32-21-010-052-A
Subtask 52-32-21-020-052-B ** ON A/C NOT FOR ALL
[Rev.10 from 2021]
2026.04.02 06:28:00 UTC
Removal of the Vent Door Mechanism
1. Reason for the Job
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
| REFERENCE | QTY | DESIGNATION |
|---|---|---|
| No specific | 1 | ACCESS PLATFORM 4M (13 FT)-ADJUSTABLE |
| No specific | AR | SAFETY CLIP - CIRCUIT BREAKER |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| 826AR | |
| 826BR, 826CR |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 52-30-00-860-001-A | Open the FWD or Aft Cargo-Compartment Door with the Yellow Electric Pump |
| TASK 52-32-13-000-001-A | Removal of the Lining and Insulation |
| TASK 52-32-33-000-001-A | Removal of the Door Fairings and Access Panels |
Subtask 52-32-21-010-052-A
A. Get Access
(1) Open the AFT cargo-compartment door (referred to as cargo door) and safety it with the actuator safety locks (Ref. AMM TASK 52-30-00-860-001).
(2) Put the ACCESS PLATFORM 4M (13 FT)-ADJUSTABLE in position below the opened cargo door.
Subtask 52-32-21-865-056-A (1) Open the AFT cargo-compartment door (referred to as cargo door) and safety it with the actuator safety locks (Ref. AMM TASK 52-30-00-860-001).
(2) Put the ACCESS PLATFORM 4M (13 FT)-ADJUSTABLE in position below the opened cargo door.
B. Open, safety and tag this(these) circuit breaker(s):
Subtask 52-32-21-010-053-A ** ON A/C NOT FOR ALL | PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C NOT FOR ALL | |||
| 121VU | HYDRAULIC/HYD POWER/Y | 3803GX | N30 |
| ** ON A/C NOT FOR ALL | |||
| 121VU | HYDRAULIC/HYD POWER/Y | 3803GX | N31 |
| ** ON A/C ALL | |||
| 122VU | DOORS/CARGO | 1MJ | T12 |
| 123VU | Y HYD/ELEC/PUMP | 3802GX | AB06 |
| 123VU | Y HYD/ELEC/ELEC PUMP/NORM | 3801GX | AB03 |
C. Get Access
(1) Remove the access panel 826AR from the cargo door.
(2) Remove the lining and the insulation of the cargo door to get access to the upper end of the gear box (Ref. AMM TASK 52-32-13-000-001).
(3) Remove the vent door cover from the internal door structure to get access to the actuator arm of the vent door.
Subtask 52-32-21-010-053-B ** ON A/C NOT FOR ALL (1) Remove the access panel 826AR from the cargo door.
(2) Remove the lining and the insulation of the cargo door to get access to the upper end of the gear box (Ref. AMM TASK 52-32-13-000-001).
(3) Remove the vent door cover from the internal door structure to get access to the actuator arm of the vent door.
C. Get Access
Access Panel and Protection Plugs ** ON A/C NOT FOR ALL
Access Panel and Protection Plugs ** ON A/C NOT FOR ALL
(1) Remove the door fairing 826CR and the access panel 826AR and 826BR from the cargo door (Ref. AMM TASK 52-32-33-000-001).
(2) Remove the lining and the insulation to get access to the upper end of the gear box (Ref. AMM TASK 52-32-13-000-001).
(3) Remove the vent door cover from the internal door structure to get access to the actuator arm of the vent door.
(4) Remove the nuts (5), the washers (6) and the bolts (8) to disconnect the cover plate (7) from the inner side of the edge member.
4. Procedure Access Panel and Protection Plugs ** ON A/C NOT FOR ALL Access Panel and Protection Plugs ** ON A/C NOT FOR ALL (2) Remove the lining and the insulation to get access to the upper end of the gear box (Ref. AMM TASK 52-32-13-000-001).
(3) Remove the vent door cover from the internal door structure to get access to the actuator arm of the vent door.
(4) Remove the nuts (5), the washers (6) and the bolts (8) to disconnect the cover plate (7) from the inner side of the edge member.
Subtask 52-32-21-020-052-B ** ON A/C NOT FOR ALL
A. Removal of the Gear Box Linkage
Linkage of the Vent Door Mechanism ** ON A/C NOT FOR ALL
Linkage of the Vent Door Mechanism ** ON A/C NOT FOR ALL
(1) Disconnect the drawbar (71) from the shaft lever (76) as follows:
(a) Remove and discard the cotter pin (75) from the nut (74).
(b) Remove the nut (74), the washers (73) and the bolt (72) from the shaft lever (76).
(c) Remove the eye end of the drawbar (71) from the fork end of the shaft lever (76).
(2) Disconnect the drawbar (71) from the actuator arm (107) of the vent door as follows:
(a) Remove and discard the cotter pin (103) from the nut (104).
(b) Remove the nut (104), the washers (105), the bush (106) and the bolt (108) from the actuator arm (107).
(c) Remove the eye end of the drawbar (71) from the actuator arm (107).
(3) Disconnect the connection rod (82) from the vent door lever (85) of the safety shaft as follows:
(a) Remove and discard the cotter pin (87) from the nut (86).
(b) Remove the nut (86), the washers (84) and the bolt (83) from the vent door lever (85).
(c) Remove the lower eye end of the connection rod (82) from the fork end of the vent door lever (85).
(4) Disconnect the connection rod (82) from the lever (80) as follows:
(a) Remove and discard the cotter pin (77) from the nut (78).
(b) Remove the nut (78), the washers (79) and the bolt (81) from the lever (80).
(c) Remove the upper eye end of the connection rod (82) from the fork end of the lever (80).
(5) Disconnect the link assy (88) from the target lever (90) as follows:
(a) Remove and discard the cotter pin (91) from the nut (92).
(b) Remove the nut (92), the washer (93), the sleeve (94) and the bolt (89) from the link assy (88).
(c) Remove the fork end of the link assy (88) from the target lever (90).
(6) Disconnect the link assy (88) from the drive shaft lever (102) as follows:
(a) Remove and discard the cotter pin (96) from the nut (97).
(b) Remove the nut (97) and the washer (98) from the drive shaft lever (102).
(c) Remove the eye end of the link assy (88) from the drive shaft lever (102).
Subtask 52-32-21-020-053-B ** ON A/C NOT FOR ALL Linkage of the Vent Door Mechanism ** ON A/C NOT FOR ALL Linkage of the Vent Door Mechanism ** ON A/C NOT FOR ALL (a) Remove and discard the cotter pin (75) from the nut (74).
(b) Remove the nut (74), the washers (73) and the bolt (72) from the shaft lever (76).
(c) Remove the eye end of the drawbar (71) from the fork end of the shaft lever (76).
(2) Disconnect the drawbar (71) from the actuator arm (107) of the vent door as follows:
(a) Remove and discard the cotter pin (103) from the nut (104).
(b) Remove the nut (104), the washers (105), the bush (106) and the bolt (108) from the actuator arm (107).
(c) Remove the eye end of the drawbar (71) from the actuator arm (107).
(3) Disconnect the connection rod (82) from the vent door lever (85) of the safety shaft as follows:
(a) Remove and discard the cotter pin (87) from the nut (86).
(b) Remove the nut (86), the washers (84) and the bolt (83) from the vent door lever (85).
(c) Remove the lower eye end of the connection rod (82) from the fork end of the vent door lever (85).
(4) Disconnect the connection rod (82) from the lever (80) as follows:
(a) Remove and discard the cotter pin (77) from the nut (78).
(b) Remove the nut (78), the washers (79) and the bolt (81) from the lever (80).
(c) Remove the upper eye end of the connection rod (82) from the fork end of the lever (80).
(5) Disconnect the link assy (88) from the target lever (90) as follows:
(a) Remove and discard the cotter pin (91) from the nut (92).
(b) Remove the nut (92), the washer (93), the sleeve (94) and the bolt (89) from the link assy (88).
(c) Remove the fork end of the link assy (88) from the target lever (90).
(6) Disconnect the link assy (88) from the drive shaft lever (102) as follows:
(a) Remove and discard the cotter pin (96) from the nut (97).
(b) Remove the nut (97) and the washer (98) from the drive shaft lever (102).
(c) Remove the eye end of the link assy (88) from the drive shaft lever (102).
B. Removal of the Gearbox
Gear Box of the Vent Door Mechanism ** ON A/C NOT FOR ALL
Gear Box of the Vent Door Mechanism ** ON A/C NOT FOR ALL
(1) Disassemble the drive shaft lever (102) from the drive shaft of the gear box (123) as follows:
(a) Remove the nuts (128), the washers (127), the sleeves (126) and the tapered pins (125) from the lever (124).
(b) Remove the nuts (133), the washers (132), the sleeves (126) and the tapered pins (129) from the safety cam (130).
(c) Hold the safety cam (130) so that it does not fall down during the removal of the drive shaft lever (102).
(d) Pull the drive shaft lever (102) from the cargo door frame and remove the safety cam (130).
(2) Remove the shaft lever (76) from the output shaft of the gear box (123) as follows:
(a) Remove the nuts (120), the sleeves (121) and the tapered pins (111) from the shaft lever (76).
(b) Remove the protection plug (110) from the shaft lever (76).
(c) Move the shaft lever (76) from the output of the gear box (123).
(3) Remove the gear box (123) together with the lever (124) from the cargo door structure as follows:
(a) Support the gear box (123) and remove the screws (119) and the washers (118) from the longeron (116).
(b) Move the output shaft down through the flange bearing (122) and the structural bearings at longeron (116).
(c) Remove the gear box (123) together with the laminated shim (115) and the lever (124) from the longeron (116).
(d) Remove the laminated shim (115) from the output shaft of the gear box (123).
(e) Remove the lever (124) from the drive shaft of the gear box (123).
(4) If necessary, remove the nuts (114), the washers (113), the bolts (112) and the flange bearing (122) from the support bracket (117).
Subtask 52-32-21-020-052-C ** ON A/C NOT FOR ALL Gear Box of the Vent Door Mechanism ** ON A/C NOT FOR ALL Gear Box of the Vent Door Mechanism ** ON A/C NOT FOR ALL (a) Remove the nuts (128), the washers (127), the sleeves (126) and the tapered pins (125) from the lever (124).
(b) Remove the nuts (133), the washers (132), the sleeves (126) and the tapered pins (129) from the safety cam (130).
(c) Hold the safety cam (130) so that it does not fall down during the removal of the drive shaft lever (102).
(d) Pull the drive shaft lever (102) from the cargo door frame and remove the safety cam (130).
(2) Remove the shaft lever (76) from the output shaft of the gear box (123) as follows:
(a) Remove the nuts (120), the sleeves (121) and the tapered pins (111) from the shaft lever (76).
(b) Remove the protection plug (110) from the shaft lever (76).
(c) Move the shaft lever (76) from the output of the gear box (123).
(3) Remove the gear box (123) together with the lever (124) from the cargo door structure as follows:
(a) Support the gear box (123) and remove the screws (119) and the washers (118) from the longeron (116).
(b) Move the output shaft down through the flange bearing (122) and the structural bearings at longeron (116).
(c) Remove the gear box (123) together with the laminated shim (115) and the lever (124) from the longeron (116).
(d) Remove the laminated shim (115) from the output shaft of the gear box (123).
(e) Remove the lever (124) from the drive shaft of the gear box (123).
(4) If necessary, remove the nuts (114), the washers (113), the bolts (112) and the flange bearing (122) from the support bracket (117).
C. Removal of the Vent Door Linkage
(1) Remove the connection rod (16) as follows:
(a) Remove and discard the cotter pin (5) from the nut (4).
(b) Remove the nut (4), the washers (3) and the bolt (2).
(c) Remove the connection rod (16) from the lever of the vent door (1).
(d) Remove and discard the cotter pin (10).
(e) Remove the nut (9), the washers (7), and the bolt (6).
(f) Remove the connection rod (16) from the drive lever (8).
(2) Remove the connection rod (23) as follows:
(a) Remove and discard the cotter pin (12) from the nut (13).
(b) Remove the nut (13), the washers (14) and the bolt (15).
(c) Disconnect the connection rod (23) from the lever (11).
(d) Remove and discard the cotter pin (22) from the nut (21).
(e) Remove the nut (21), the washers (17) and the bolt (18) from the twin lever (19).
(f) Remove the connection rod (23) from the twin lever (19).
Subtask 52-32-21-020-053-C ** ON A/C NOT FOR ALL (1) Remove the connection rod (16) as follows:
(a) Remove and discard the cotter pin (5) from the nut (4).
(b) Remove the nut (4), the washers (3) and the bolt (2).
(c) Remove the connection rod (16) from the lever of the vent door (1).
(d) Remove and discard the cotter pin (10).
(e) Remove the nut (9), the washers (7), and the bolt (6).
(f) Remove the connection rod (16) from the drive lever (8).
(2) Remove the connection rod (23) as follows:
(a) Remove and discard the cotter pin (12) from the nut (13).
(b) Remove the nut (13), the washers (14) and the bolt (15).
(c) Disconnect the connection rod (23) from the lever (11).
(d) Remove and discard the cotter pin (22) from the nut (21).
(e) Remove the nut (21), the washers (17) and the bolt (18) from the twin lever (19).
(f) Remove the connection rod (23) from the twin lever (19).
D. Removal of the Cover Assembly of the Vent Door Mechanism
Cover Assembly of the Vent Door Mechanism ** ON A/C NOT FOR ALL
Cover Assembly of the Vent Door Mechanism ** ON A/C NOT FOR ALL
(1) Make sure the fork-end of the drive rod (1) is clear of the shaft lever (3).
(2) Remove the nut (5), the spacer (4) and the tapered pin (2).
(3) Remove the shaft lever (3) from the shaft (16).
(4) Remove and discard the cotter pin (10).
(5) Remove the nut (9), the washer (8), the bolt (14) and the washer (13).
(6) Disconnnect the fork end of the connection link (12) from the shaft lever (15).
(7) Remove the nut (6), the spacer (7) and the tapered pin (11).
(8) Remove the bolts (19), the washers (18) and the cover assembly (17) from the beam 4.
Cover Assembly of the Vent Door Mechanism ** ON A/C NOT FOR ALL Cover Assembly of the Vent Door Mechanism ** ON A/C NOT FOR ALL (2) Remove the nut (5), the spacer (4) and the tapered pin (2).
(3) Remove the shaft lever (3) from the shaft (16).
(4) Remove and discard the cotter pin (10).
(5) Remove the nut (9), the washer (8), the bolt (14) and the washer (13).
(6) Disconnnect the fork end of the connection link (12) from the shaft lever (15).
(7) Remove the nut (6), the spacer (7) and the tapered pin (11).
(8) Remove the bolts (19), the washers (18) and the cover assembly (17) from the beam 4.