DOC AIRBUS | AMM A320FRemoval of the Locking Shaft Mechanism (73" Door)
TASK 52-22-21-000-004-A
Removal of the Locking Shaft Mechanism (73" Door)
1. Reason for the Job
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
B. Referenced Information
3. Job Set-up
Subtask 52-22-21-010-063-A ** ON A/C NOT FOR ALL
Subtask 52-22-21-020-058-A ** ON A/C NOT FOR ALL
[Rev.10 from 2021]
2026.04.02 06:27:42 UTC
Removal of the Locking Shaft Mechanism (73" Door)
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 |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 25-23-47-000-012-A | Removal of the Door Linings of the LH FWD Emergency Exit Door, zone 231 |
| TASK 52-22-00-010-001-A | Opening of the Emergency Exit Doors from the Passenger Compartment |
| TASK 52-22-00-860-003-A | Special Precaution before Maintenance on the Door Damper and Emergency Operation Cylinder |
Locking Hook and Drift Pin Assembly (73" Door)Subtask 52-22-21-010-063-A ** ON A/C NOT FOR ALL
A. Get Access
(1) Open the applicable emergency exit door (referred to as door) as required (Ref. AMM TASK 52-22-00-010-001).
(2) Make sure that the ACCESS PLATFORM 4M (13 FT)-ADJUSTABLE is in position below the partly opened door.
(3) Make sure that the special precaution on the door damper and emergency operation cylinder is completed (Ref. AMM TASK 52-22-00-860-003).
Subtask 52-22-21-865-062-A ** ON A/C NOT FOR ALL (1) Open the applicable emergency exit door (referred to as door) as required (Ref. AMM TASK 52-22-00-010-001).
(2) Make sure that the ACCESS PLATFORM 4M (13 FT)-ADJUSTABLE is in position below the partly opened door.
(3) Make sure that the special precaution on the door damper and emergency operation cylinder is completed (Ref. AMM TASK 52-22-00-860-003).
B. Open, safety and tag this(these) circuit breaker(s):
Subtask 52-22-21-010-058-A ** ON A/C NOT FOR ALL | PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C NOT FOR ALL | |||
| 121VU | EIS/SLIDES/ARM AND WARN/FLT | 15WN | P11 |
| 121VU | EIS/SLIDES/ARM AND WARN/GND | 13WN | P10 |
| 121VU | EIS/SDAC1 AND 2/DOOR/DET/PAX | 48WV | P05 |
C. Get Access
(1) Remove the door linings (Ref. AMM TASK 25-23-47-000-012) from the door as required.
(2) Carefully disengage the VELCRO tapes and remove the insulation mat from the inner side of the door as required.
4. Procedure(1) Remove the door linings (Ref. AMM TASK 25-23-47-000-012) from the door as required.
(2) Carefully disengage the VELCRO tapes and remove the insulation mat from the inner side of the door as required.
Subtask 52-22-21-020-058-A ** ON A/C NOT FOR ALL
A. Removal of the Locking Hook Assembly
(a) Remove and discard the cotter pin (232) from the nut (233).
(b) Remove the nut (233), the washers (231), the bush (227) and the bolt (230) from the intermediate lever (229).
(c) Disconnect the eye-end of the connection rod (226) from the fork-end of the intermediate lever (229).
(d) If required, remove the bush (228) from the fork-end of the intermediate lever (229).
(2) Cut and discard the tie-wrap (224) and disassemble the bellows (223) from the door fitting (219).
(3) Disconnect the locking hook (210) from the door fitting (219) as follows:
(a) Remove the nut (217) and the bolt (221) together with the washer (220) from the door structure.
(b) Hold the locking hook (210) and remove the sleeve (218) together with the washers (211) and (212) from the door fitting (219).
(c) Remove the locking hook (210) together with the connection rod (226) and the bellows (223) from the door fitting (219).
(4) If required, cut and discard the tie-wrap (222) and remove the bellows (223) from the connection rod (226).
Subtask 52-22-21-020-059-A ** ON A/C NOT FOR ALL WARNING:
BEFORE YOU START WORK ON THE DOOR, MAKE SURE THAT:
(1) Disconnect the connection rod (226) from the intermediate lever (229) as follows: - THE EMERGENCY CONTROL HANDLE IS IN THE DISARMED POSITION WITH THE SAFETY PIN INSTALLED.
- THE PERCUSSION LEVER OF THE DOOR-DAMPER AND EMERGENCY-OPERATION CYLINDER IS IN THE DISARMED POSITION WITH THE SAFETY PIN INSTALLED.
(a) Remove and discard the cotter pin (232) from the nut (233).
(b) Remove the nut (233), the washers (231), the bush (227) and the bolt (230) from the intermediate lever (229).
(c) Disconnect the eye-end of the connection rod (226) from the fork-end of the intermediate lever (229).
(d) If required, remove the bush (228) from the fork-end of the intermediate lever (229).
(2) Cut and discard the tie-wrap (224) and disassemble the bellows (223) from the door fitting (219).
(3) Disconnect the locking hook (210) from the door fitting (219) as follows:
(a) Remove the nut (217) and the bolt (221) together with the washer (220) from the door structure.
(b) Hold the locking hook (210) and remove the sleeve (218) together with the washers (211) and (212) from the door fitting (219).
(c) Remove the locking hook (210) together with the connection rod (226) and the bellows (223) from the door fitting (219).
(4) If required, cut and discard the tie-wrap (222) and remove the bellows (223) from the connection rod (226).
B. Removal of the Drift Pin Assembly
(1) Disconnect the fork link (254) from the twin lever (262) as follows:
(a) Remove and discard the cotter pin (251) from the nut (252).
(b) Remove the nut (252), the washers (253), the bush (256) and the bolt (255) from the fork link (254).
(c) Disconnect the fork link (254) from the twin lever (262) and hold the spacer (257).
(d) If required, remove the bush (263) from the fork link (254).
(2) Disconnect the fork link (254) from the drift pin (239) as follows:
(a) Remove and discard the cotter pin (246) from the nut (247).
(b) Remove the nut (247), the washers (248), the bush (241) and the bolt (249) from the fork link (254).
(c) Disconnect the fork link (254) from the drift pin (239) and hold the spacer (242).
(d) If required, remove the bush (250) from the fork link (254).
(3) Remove the drift pin assembly (240) as follows:
(a) Remove the washers (244) and the bolts (245) to disconnect the guide fitting (238) from the upper member (243).
(b) Remove the drift pin assembly (240) from the upper member (243).
(4) If required, remove the spring unit (275) as follows:
(b) Remove the washers (268), the bush (265) and the bolt (273) from the fitting (271).
(c) Remove and discard the cotter pin (259) from the nut (258).
(d) Remove the nut (258), the washers (260), the bush (264) and the bolt (261) from the twin lever (262).
(e) Disconnect the spring unit (275) from the twin lever (262) and remove it from the fitting (271).
(f) If required, remove the bush (276) from the fork-end of the twin lever (254).
(g) If required, remove the nuts (272), the washers (270), the bolts (269) and the fitting (271) from the door structure.
(h) If required, remove the bush (274) from the fork-end of the fitting (271).
Subtask 52-22-21-020-060-B ** ON A/C NOT FOR ALL (1) Disconnect the fork link (254) from the twin lever (262) as follows:
(a) Remove and discard the cotter pin (251) from the nut (252).
(b) Remove the nut (252), the washers (253), the bush (256) and the bolt (255) from the fork link (254).
(c) Disconnect the fork link (254) from the twin lever (262) and hold the spacer (257).
(d) If required, remove the bush (263) from the fork link (254).
(2) Disconnect the fork link (254) from the drift pin (239) as follows:
(a) Remove and discard the cotter pin (246) from the nut (247).
(b) Remove the nut (247), the washers (248), the bush (241) and the bolt (249) from the fork link (254).
(c) Disconnect the fork link (254) from the drift pin (239) and hold the spacer (242).
(d) If required, remove the bush (250) from the fork link (254).
(3) Remove the drift pin assembly (240) as follows:
(a) Remove the washers (244) and the bolts (245) to disconnect the guide fitting (238) from the upper member (243).
(b) Remove the drift pin assembly (240) from the upper member (243).
(4) If required, remove the spring unit (275) as follows:
WARNING:
BE CAREFUL WHEN YOU REMOVE OR INSTALL THE SPRING. THE TENSION IN THE SPRING CAN CAUSE INJURY TO PERSONS.
(a) Remove and discard the cotter pin (266) from the nut (267). (b) Remove the washers (268), the bush (265) and the bolt (273) from the fitting (271).
(c) Remove and discard the cotter pin (259) from the nut (258).
(d) Remove the nut (258), the washers (260), the bush (264) and the bolt (261) from the twin lever (262).
(e) Disconnect the spring unit (275) from the twin lever (262) and remove it from the fitting (271).
(f) If required, remove the bush (276) from the fork-end of the twin lever (254).
(g) If required, remove the nuts (272), the washers (270), the bolts (269) and the fitting (271) from the door structure.
(h) If required, remove the bush (274) from the fork-end of the fitting (271).
C. Removal of the Locking Shaft Assembly
(1) Remove the locking indicator assembly (280) from the door structure as follows:
(a) Remove and discard the cotter pin (284) from the pin (287).
(b) Remove the washer (285) and the pin (287) from the joint (288).
(c) Disconnect the indication lever (286) from the joint (288).
(d) Hold the locking indicator assembly (280) and remove the nuts (281) and the bolts (282).
(e) Remove the locking indicator assembly (280) from the door structure.
(2) Disconnect the push rod (304) from the engaging lever (298) as follows:
(a) Remove and discard the cotter pin (310) from the nut (309).
(b) Remove the nut (309), the washers (308), the bush (305) and the bolt (307) from the engaging lever (298).
(c) Disconnect the eye-end of the push rod (304) from the fork-end of the engaging lever (298).
(d) If required, remove the bush (306) from the fork-end of the engaging lever (298).
(3) Disconnect the push rod (290) from the actuation lever (297) as follows:
(a) Remove and discard the cotter pin (295) from the nut (294).
(b) Remove the nut (294), the washers (296), the bush (291) and the bolt (303) from the actuation lever (297).
(c) Disconnect the eye-end of the push rod (291) from the fork-end of the actuation lever (297).
(d) If required, remove the bush (292) from the fork-end of the actuation lever (297).
(4) Disconnect the spring rod assembly (300) from the indication lever (286) as follows:
(b) Remove the washer (301) and the pin (299) from the indication lever (286).
(c) Disconnect the fork-end of the spring rod assemby (300) from the indication lever (286).
(5) Remove the nuts (313) and the bolts (311) and disconnect the flange bearing (312) from the door structure.
(6) Move the locking shaft (293) in the rear direction so that the shaft end comes free from the structural bearing (317).
(7) Remove the locking shaft (293) from the door struture.
Subtask 52-22-21-020-061-B ** ON A/C NOT FOR ALL (1) Remove the locking indicator assembly (280) from the door structure as follows:
(a) Remove and discard the cotter pin (284) from the pin (287).
(b) Remove the washer (285) and the pin (287) from the joint (288).
(c) Disconnect the indication lever (286) from the joint (288).
(d) Hold the locking indicator assembly (280) and remove the nuts (281) and the bolts (282).
(e) Remove the locking indicator assembly (280) from the door structure.
(2) Disconnect the push rod (304) from the engaging lever (298) as follows:
(a) Remove and discard the cotter pin (310) from the nut (309).
(b) Remove the nut (309), the washers (308), the bush (305) and the bolt (307) from the engaging lever (298).
(c) Disconnect the eye-end of the push rod (304) from the fork-end of the engaging lever (298).
(d) If required, remove the bush (306) from the fork-end of the engaging lever (298).
(3) Disconnect the push rod (290) from the actuation lever (297) as follows:
(a) Remove and discard the cotter pin (295) from the nut (294).
(b) Remove the nut (294), the washers (296), the bush (291) and the bolt (303) from the actuation lever (297).
(c) Disconnect the eye-end of the push rod (291) from the fork-end of the actuation lever (297).
(d) If required, remove the bush (292) from the fork-end of the actuation lever (297).
(4) Disconnect the spring rod assembly (300) from the indication lever (286) as follows:
WARNING:
BE CAREFUL WHEN YOU REMOVE OR INSTALL THE SPRING. THE TENSION IN THE SPRING CAN CAUSE INJURY TO PERSONS.
(a) Remove and discard the cotter pin (302) from the pin (299). (b) Remove the washer (301) and the pin (299) from the indication lever (286).
(c) Disconnect the fork-end of the spring rod assemby (300) from the indication lever (286).
(5) Remove the nuts (313) and the bolts (311) and disconnect the flange bearing (312) from the door structure.
(6) Move the locking shaft (293) in the rear direction so that the shaft end comes free from the structural bearing (317).
(7) Remove the locking shaft (293) from the door struture.
D. Removal of the Intermediate Shaft Assembly
(1) Disconnect the fork link (254) from the twin lever (262) as follows:
(a) Remove and discard the cotter pin (251) from the nut (252).
(b) Remove the nut (252), the washers (253), the bush (256) and the bolt (255) from the fork link (254).
(c) Disconnect the fork link (254) from the twin lever (262) and hold the spacer (257).
(d) If required, remove the bush (263) from the fork link (254).
(2) Disconnect the spring unit (275) from the twin lever (262) as follows:
(b) Remove the nut (258), the washers (260), the bush (264) and the bolt (261) from the twin lever (262).
(c) Disconnect the eye-end of the spring unit (275) from the fork-end of the twin lever (262).
(d) If required, remove the bush (276) from the fork-end of the twin lever (262).
(3) Disconnect the connection rod (226) from the intermediate lever (229) as follows:
(a) Remove and discard the cotter pin (232) from the nut (233).
(b) Remove the nut (233), the washers (231), the bush (227) and the bolt (230) from the intermediate lever (229).
(c) Disconnect the eye-end of the connection rod (226) from the fork-end of the intermediate lever (229).
(d) If required, remove the bush (228) from the fork-end of the intermediate lever (229).
(4) Disconnect the push rod (290) from the intermediate lever (229) as follows:
(a) Remove and discard the cotter pin (331) from the nut (332).
(b) Remove the nut (322), the washers (328), the bush (330) and the bolt (327) from the intermediate lever (229).
(c) Disconnect the eye-end of the push rod (290) from the fork-end of the intermediate lever (229).
(d) If required, remove the bush (329) from the fork-end of the intermediate lever (229).
(5) Disconnect the connection rod (339) from the actuation lever (337) as follows:
(a) Remove and discard the cotter pin (336) from the nut (335).
(b) Remove the nut (335), the washers (334), the bush (340) and the bolt (333) from the actuation lever (337).
(c) Disconnect the eye-end of the connection rod (339) from the fork-end of the actuation lever (337).
(d) If required, remove the bush (338) from the fork-end of the actuation lever (337).
(6) Remove the support fitting (326) from the door structure as follows:
(a) Remove the nuts (342) and (348) and the bolts (341) and (343) and disconnect the stop fitting (344) from the support fitting (326).
(b) Remove the nuts (342) and (348) and the bolts (341) and (343) and disconnect the support fitting (326) from the door structure.
(7) Remove the nuts (347), the bolts (345) and the flange bearing (346) from the door structure.
(8) Move the intermediate shaft (325) in the rear direction so that the shaft end comes free from the door structure.
(9) Loosen the attachment screw and remove the target lever (322) from the intermediate shaft (325).
(10) Remove the intermediate shaft (325) from the door structure.
(1) Disconnect the fork link (254) from the twin lever (262) as follows:
(a) Remove and discard the cotter pin (251) from the nut (252).
(b) Remove the nut (252), the washers (253), the bush (256) and the bolt (255) from the fork link (254).
(c) Disconnect the fork link (254) from the twin lever (262) and hold the spacer (257).
(d) If required, remove the bush (263) from the fork link (254).
(2) Disconnect the spring unit (275) from the twin lever (262) as follows:
WARNING:
BE CAREFUL WHEN YOU REMOVE OR INSTALL THE SPRING. THE TENSION IN THE SPRING CAN CAUSE INJURY TO PERSONS.
(a) Remove and discard the cotter pin (259) from the nut (258). (b) Remove the nut (258), the washers (260), the bush (264) and the bolt (261) from the twin lever (262).
(c) Disconnect the eye-end of the spring unit (275) from the fork-end of the twin lever (262).
(d) If required, remove the bush (276) from the fork-end of the twin lever (262).
(3) Disconnect the connection rod (226) from the intermediate lever (229) as follows:
(a) Remove and discard the cotter pin (232) from the nut (233).
(b) Remove the nut (233), the washers (231), the bush (227) and the bolt (230) from the intermediate lever (229).
(c) Disconnect the eye-end of the connection rod (226) from the fork-end of the intermediate lever (229).
(d) If required, remove the bush (228) from the fork-end of the intermediate lever (229).
(4) Disconnect the push rod (290) from the intermediate lever (229) as follows:
(a) Remove and discard the cotter pin (331) from the nut (332).
(b) Remove the nut (322), the washers (328), the bush (330) and the bolt (327) from the intermediate lever (229).
(c) Disconnect the eye-end of the push rod (290) from the fork-end of the intermediate lever (229).
(d) If required, remove the bush (329) from the fork-end of the intermediate lever (229).
(5) Disconnect the connection rod (339) from the actuation lever (337) as follows:
(a) Remove and discard the cotter pin (336) from the nut (335).
(b) Remove the nut (335), the washers (334), the bush (340) and the bolt (333) from the actuation lever (337).
(c) Disconnect the eye-end of the connection rod (339) from the fork-end of the actuation lever (337).
(d) If required, remove the bush (338) from the fork-end of the actuation lever (337).
(6) Remove the support fitting (326) from the door structure as follows:
(a) Remove the nuts (342) and (348) and the bolts (341) and (343) and disconnect the stop fitting (344) from the support fitting (326).
(b) Remove the nuts (342) and (348) and the bolts (341) and (343) and disconnect the support fitting (326) from the door structure.
(7) Remove the nuts (347), the bolts (345) and the flange bearing (346) from the door structure.
(8) Move the intermediate shaft (325) in the rear direction so that the shaft end comes free from the door structure.
(9) Loosen the attachment screw and remove the target lever (322) from the intermediate shaft (325).
(10) Remove the intermediate shaft (325) from the door structure.