DOC AIRBUS | AMM A320FInstallation of the Locking Shaft Mechanism (73" Door)
TASK 52-22-21-400-004-A
Installation 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. Consumable Materials
C. Expendable Parts
D. Referenced Information
3. Job Set-up
Subtask 52-22-21-865-063-A ** ON A/C NOT FOR ALL
Subtask 52-22-21-910-054-A ** ON A/C NOT FOR ALL
Subtask 52-22-21-865-064-A ** ON A/C NOT FOR ALL
[Rev.10 from 2021]
2026.04.02 06:27:42 UTC
Installation 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 |
| REFERENCE | DESIGNATION |
|---|---|
| (Material No.03HBD9) | Synthetic Ester base Grease-General Purpose Low Temp - |
| FIG.ITEM | DESIGNATION | IPC-CSN |
|---|---|---|
| 336 | COTTER PIN | AIPC 52-22-11-03-060 |
| 246 | COTTER PIN | AIPC 52-22-21-03-120 |
| 251 | COTTER PIN | AIPC 52-22-21-03-120 |
| 259 | COTTER PIN | AIPC 52-22-21-03-240 |
| 266 | COTTER PIN | AIPC 52-22-21-03-240 |
| 213 | COTTER PIN | AIPC 52-22-21-05-120 |
| 222 | TIE-WRAP | AIPC 52-22-21-05-160 |
| 224 | TIE-WRAP | AIPC 52-22-21-05-170 |
| 232 | COTTER PIN | AIPC 52-22-21-05-210 |
| 331 | COTTER PIN | AIPC 52-22-21-07-240 |
| 295 | COTTER PIN | AIPC 52-22-21-07-260 |
| 284 | COTTER PIN | AIPC 52-22-21-08-260 |
| 302 | COTTER PIN | AIPC 52-22-21-08-290 |
| 310 | COTTER PIN | AIPC 52-22-21-08-290 |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 25-23-47-000-012-A | Removal of the Door Linings of the LH FWD Emergency Exit Door, zone 231 |
| TASK 25-23-47-400-012-A | Installation 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 52-22-00-410-001-A | Closing of the Emergency Exit Doors from the Passenger Compartment |
| TASK 52-22-00-820-003-A | Adjustment of the Locking Mechanism |
| TASK 52-22-00-860-003-A | Special Precaution before Maintenance on the Door Damper and Emergency Operation Cylinder |
| TASK 52-22-00-860-004-A | Special Precaution after Maintenance on the Door Damper and Emergency Operation Cylinder |
Locking Hook and Drift Pin Assembly (73" Door)Subtask 52-22-21-865-063-A ** ON A/C NOT FOR ALL
A. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged:
Subtask 52-22-21-860-055-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 |
B. Aircraft Maintenance Configuration
(1) Make sure that emergency exit door (referred to as door) is opened as required (Ref. AMM TASK 52-22-00-010-001).
(2) Make sure that the special precaution of the door damper and emergency operation cylinder is completed (Ref. AMM TASK 52-22-00-860-003).
(3) Make sure that the ACCESS PLATFORM 4M (13 FT)-ADJUSTABLE is in position below the partly opened door (Ref. AMM TASK 52-22-00-010-001).
(4) Make sure that the door linings are removed as required (Ref. AMM TASK 25-23-47-000-012).
4. Procedure(1) Make sure that emergency exit door (referred to as door) is opened as required (Ref. AMM TASK 52-22-00-010-001).
(2) Make sure that the special precaution of the door damper and emergency operation cylinder is completed (Ref. AMM TASK 52-22-00-860-003).
(3) Make sure that the ACCESS PLATFORM 4M (13 FT)-ADJUSTABLE is in position below the partly opened door (Ref. AMM TASK 52-22-00-010-001).
(4) Make sure that the door linings are removed as required (Ref. AMM TASK 25-23-47-000-012).
Subtask 52-22-21-910-054-A ** ON A/C NOT FOR ALL
A. Preparation for Installation
(1) Make sure that the parts retained from the removed component are clean and in the correct condition.
(2) Do an inspection of the component interfaces and the adjacent area.
(3) Make sure that all bushes and spacers are in the correct condition.
(4) Apply Synthetic Ester base Grease-General Purpose Low Temp - (Material No.03HBD9) to all surfaces of parts which move.
Subtask 52-22-21-420-058-A ** ON A/C NOT FOR ALL (1) Make sure that the parts retained from the removed component are clean and in the correct condition.
(2) Do an inspection of the component interfaces and the adjacent area.
(3) Make sure that all bushes and spacers are in the correct condition.
(4) Apply Synthetic Ester base Grease-General Purpose Low Temp - (Material No.03HBD9) to all surfaces of parts which move.
B. Installation of the Locking Hook Assembly
(1) If removed, install the connection rod (226) to the locking hook (210) as follows:
(a) If removed, install the bush (234) to the locking hook (210).
(b) Put the eye-end of the connection rod (226) in position to the locking hook (210).
(c) Install the bolt (216), the washers (215), the bush (225) and the nut (214) to the locking hook (210).
(d) Tighten the nut (214) and safety it with the new AIPC 52-22-21-05-120 COTTER PIN (213).
(2) If removed, install the bellows (223) to the connection rod (226) and attach it with the AIPC 52-22-21-05-160 TIE-WRAP (222).
(3) Connect the locking hook (210) with the door fitting (219) as follows:
(a) Put the locking hook (210) together with the connection rod (226) and the bellows (223) in position to the door structure.
(b) Attach the locking hook (210) with the sleeve (218) and the washers (211) and (212) on the door fitting (219).
(c) Install the bolt (221), the washers (220) and the nut (217).
(4) Install the bellows (223) to the door fitting (219) and attach it with the AIPC 52-22-21-05-170 TIE-WRAP (224).
(5) Connect the connection rod (226) with the actuation lever (229) as follows:
(a) If removed, install the bush (228) to the actuation lever (229).
(b) Put the eye-end of the connection rod (226) in position to the actuation lever (229).
(c) Install the bolt (230), the washers (231), the bush (227) and the nut (233) to the actuation lever (229).
(d) Tighten the nut (233) and safety it with the new AIPC 52-22-21-05-210 COTTER PIN (232).
Subtask 52-22-21-420-059-A ** ON A/C NOT FOR ALL (1) If removed, install the connection rod (226) to the locking hook (210) as follows:
(a) If removed, install the bush (234) to the locking hook (210).
(b) Put the eye-end of the connection rod (226) in position to the locking hook (210).
(c) Install the bolt (216), the washers (215), the bush (225) and the nut (214) to the locking hook (210).
(d) Tighten the nut (214) and safety it with the new AIPC 52-22-21-05-120 COTTER PIN (213).
(2) If removed, install the bellows (223) to the connection rod (226) and attach it with the AIPC 52-22-21-05-160 TIE-WRAP (222).
(3) Connect the locking hook (210) with the door fitting (219) as follows:
(a) Put the locking hook (210) together with the connection rod (226) and the bellows (223) in position to the door structure.
(b) Attach the locking hook (210) with the sleeve (218) and the washers (211) and (212) on the door fitting (219).
(c) Install the bolt (221), the washers (220) and the nut (217).
(4) Install the bellows (223) to the door fitting (219) and attach it with the AIPC 52-22-21-05-170 TIE-WRAP (224).
(5) Connect the connection rod (226) with the actuation lever (229) as follows:
(a) If removed, install the bush (228) to the actuation lever (229).
(b) Put the eye-end of the connection rod (226) in position to the actuation lever (229).
(c) Install the bolt (230), the washers (231), the bush (227) and the nut (233) to the actuation lever (229).
(d) Tighten the nut (233) and safety it with the new AIPC 52-22-21-05-210 COTTER PIN (232).
C. Installation of the Drift Pin Assembly
(1) If removed, install the spring unit (275) as follows:
(a) If removed, install the bush (276) to the twin lever (262).
(b) Put the upper eye-end of the spring unit (275) in position to the fork end of the twin lever (262).
(c) Install the bolt (261), the washers (260), the bushes (264) and the nut (258) to the twin lever (262).
(d) Tighten the nut (258) and safety it with the AIPC 52-22-21-03-240 COTTER PIN (259).
(e) If removed, install the bush (274) to the fitting (271).
(f) If removed, put the the fitting (271) in position and attach it with the bolts (269), the washers (270) and the nuts (272).
(g) Put the lower eye-end of the spring unit (275) in position to the fitting (271).
(h) Install the bolt (273), the washers (268), the bush (265) and the nut (267) to the fitting (271).
(i) Tighten the nut (267) and safety it with the new AIPC 52-22-21-03-240 COTTER PIN (266).
(2) Install the drift pin assembly (240) as follows:
(a) Put the drift pin assembly (240) in position to the upper member (243).
(b) Attach the guide fitting (238) with the bolts (245) and the washers (244) to the upper member (243).
(3) Connect the fork link (254) with the drift pin (239) as follows:
(a) If removed, install the bush (250) to the fork link (254).
(b) Put the fork link (254) in position to the eye- end of the drift pin (239).
(c) Install the bolt (249), the washers (248), the spacer (242), the bush (241) and the nut (247) to the fork link (254).
(d) Tighten the nut (247) and safety it with the new AIPC 52-22-21-03-120 COTTER PIN (246).
(4) Connect the fork link (254) with the twin lever (262) as follows:
(a) If removed, install the bush (263) to the fork link (254).
(b) Put the fork link (254) in position to the twin lever (262).
(c) Install the bolt (255), the washers (253), the bush (256), the spacer (257) and the nut (252) to the fork link (254).
(d) Tighten the nut (252) and safety it with the new AIPC 52-22-21-03-120 COTTER PIN (251).
Subtask 52-22-21-420-060-B ** ON A/C NOT FOR ALL (1) If removed, install the spring unit (275) as follows:
(a) If removed, install the bush (276) to the twin lever (262).
(b) Put the upper eye-end of the spring unit (275) in position to the fork end of the twin lever (262).
(c) Install the bolt (261), the washers (260), the bushes (264) and the nut (258) to the twin lever (262).
(d) Tighten the nut (258) and safety it with the AIPC 52-22-21-03-240 COTTER PIN (259).
(e) If removed, install the bush (274) to the fitting (271).
(f) If removed, put the the fitting (271) in position and attach it with the bolts (269), the washers (270) and the nuts (272).
(g) Put the lower eye-end of the spring unit (275) in position to the fitting (271).
(h) Install the bolt (273), the washers (268), the bush (265) and the nut (267) to the fitting (271).
(i) Tighten the nut (267) and safety it with the new AIPC 52-22-21-03-240 COTTER PIN (266).
(2) Install the drift pin assembly (240) as follows:
(a) Put the drift pin assembly (240) in position to the upper member (243).
(b) Attach the guide fitting (238) with the bolts (245) and the washers (244) to the upper member (243).
(3) Connect the fork link (254) with the drift pin (239) as follows:
(a) If removed, install the bush (250) to the fork link (254).
(b) Put the fork link (254) in position to the eye- end of the drift pin (239).
(c) Install the bolt (249), the washers (248), the spacer (242), the bush (241) and the nut (247) to the fork link (254).
(d) Tighten the nut (247) and safety it with the new AIPC 52-22-21-03-120 COTTER PIN (246).
(4) Connect the fork link (254) with the twin lever (262) as follows:
(a) If removed, install the bush (263) to the fork link (254).
(b) Put the fork link (254) in position to the twin lever (262).
(c) Install the bolt (255), the washers (253), the bush (256), the spacer (257) and the nut (252) to the fork link (254).
(d) Tighten the nut (252) and safety it with the new AIPC 52-22-21-03-120 COTTER PIN (251).
D. Installation of the Intermediate Shaft Assembly
(2) Install the flange bearing (346) as follows:
(a) Put the flange bearing (346) in position to the door structure.
(b) Make sure that flange bearing (346) engages with the end of the locking shaft (325).
(c) Attach the flange bearing (346) with the bolts (345) and the nuts (347) to the door structure.
(3) Install the support fitting (326) to the door structure as follows:
(a) Put the support fitting (326) in position to the door structure so that the attachment holes are align.
(b) Attach the support fitting (326) with the bolts (341) and (343) and the nuts (342) and (348).
(c) Put the stop fitting (344) in position and attach it with the bolts (341) and (343) and the nuts (342) and (348).
(4) Turn the intermediate shaft (325) to make sure that it moves easily.
(5) Put the target lever (322) in the correct position on the intermediate shaft (325) as follows:
(a) Assemble the target lever (322) to the intermediate shaft (325) so that its attachment screw engages in the groove of the shaft.
(6) Connnect the spring unit (275) with the twin lever (262) as follows:
(b) Put the eye-end of the spring unit (275) in position to the fork-end of the twin lever (262).
(c) Install the bolt (261), the bush (264), the washers (260) and the nut (258) to the twin lever (262).
(d) Tighten the nut (258) and safety it with the new AIPC 52-22-21-03-240 COTTER PIN (259).
(7) Connnect the fork link (254) with the twin lever (262) as follows:
(a) If removed, install the bush (263) to the fork link (253).
(b) Put the fork link (254) in position to the twin lever (262).
(c) Install the bolt (255), the washers (253), the spacer (257), the bush (256) and the nut (252) to the fork link (254).
(d) Tighten the nut (252) and safety it with the new AIPC 52-22-21-03-120 COTTER PIN (251).
(8) Connnect the push rod (290) with the intermediate lever (229) as follows:
(a) If removed, install the bush (329) to the intermediate lever (229).
(b) Put the eye-end of the push rod (290) in position to the fork-end of the intermediate lever (229).
(c) Install the bolt (327), the washers (328), the bush (330) and the nut (332) to the intermediate lever (229).
(d) Tighten the nut (332) and safety it with the new AIPC 52-22-21-07-240 COTTER PIN (331).
(9) Connnect the connection rod (339) with the actuation lever (337) as follows:
(a) If removed, install the bush (338) to the actuation lever (337).
(b) Put the eye-end of the connection rod (339) in position to the fork-end of the actuation lever (337).
(c) Install the bolt (333), the washers (334), the bush (340) and the nut (335) to the actuation lever (337).
(d) Tighten the nut (335) and safety it with the new AIPC 52-22-11-03-060 COTTER PIN (336).
Subtask 52-22-21-420-061-B ** ON A/C NOT FOR ALL NOTE: Make sure that the punch mark on each lever aligns with the notch of the intermediate shaft during the installation.
(1) Put the intermediate shaft (325) in position to the door structure. (2) Install the flange bearing (346) as follows:
(a) Put the flange bearing (346) in position to the door structure.
(b) Make sure that flange bearing (346) engages with the end of the locking shaft (325).
(c) Attach the flange bearing (346) with the bolts (345) and the nuts (347) to the door structure.
(3) Install the support fitting (326) to the door structure as follows:
(a) Put the support fitting (326) in position to the door structure so that the attachment holes are align.
(b) Attach the support fitting (326) with the bolts (341) and (343) and the nuts (342) and (348).
(c) Put the stop fitting (344) in position and attach it with the bolts (341) and (343) and the nuts (342) and (348).
(4) Turn the intermediate shaft (325) to make sure that it moves easily.
(5) Put the target lever (322) in the correct position on the intermediate shaft (325) as follows:
(a) Assemble the target lever (322) to the intermediate shaft (325) so that its attachment screw engages in the groove of the shaft.
NOTE: Make sure that the target lever (322) is in the correct position to the related proximity sensor.
(b) Tighten the attachment screw of the target lever (322). (6) Connnect the spring unit (275) with 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) If removed, install the bush (276) to the twin lever (262). (b) Put the eye-end of the spring unit (275) in position to the fork-end of the twin lever (262).
(c) Install the bolt (261), the bush (264), the washers (260) and the nut (258) to the twin lever (262).
(d) Tighten the nut (258) and safety it with the new AIPC 52-22-21-03-240 COTTER PIN (259).
(7) Connnect the fork link (254) with the twin lever (262) as follows:
(a) If removed, install the bush (263) to the fork link (253).
(b) Put the fork link (254) in position to the twin lever (262).
(c) Install the bolt (255), the washers (253), the spacer (257), the bush (256) and the nut (252) to the fork link (254).
(d) Tighten the nut (252) and safety it with the new AIPC 52-22-21-03-120 COTTER PIN (251).
(8) Connnect the push rod (290) with the intermediate lever (229) as follows:
(a) If removed, install the bush (329) to the intermediate lever (229).
(b) Put the eye-end of the push rod (290) in position to the fork-end of the intermediate lever (229).
(c) Install the bolt (327), the washers (328), the bush (330) and the nut (332) to the intermediate lever (229).
(d) Tighten the nut (332) and safety it with the new AIPC 52-22-21-07-240 COTTER PIN (331).
(9) Connnect the connection rod (339) with the actuation lever (337) as follows:
(a) If removed, install the bush (338) to the actuation lever (337).
(b) Put the eye-end of the connection rod (339) in position to the fork-end of the actuation lever (337).
(c) Install the bolt (333), the washers (334), the bush (340) and the nut (335) to the actuation lever (337).
(d) Tighten the nut (335) and safety it with the new AIPC 52-22-11-03-060 COTTER PIN (336).
E. Installation of the Locking Shaft Assembly
(2) Install the flange bearing (312) as follows:
(a) Put the flange bearing (312) in position to the door structure.
(b) Make sure that flange bearing (312) engages with the end of the locking shaft (293).
(c) Attach the flange bearing (312) with the bolts (311) and the nuts (313) to the door structure.
(3) Turn the locking shaft (293) to make sure that it moves easily.
(4) Connnect the spring rod assembly (300) with the indication lever (286) as follows:
(b) Safety the pin (299) with the washer (301) and the new AIPC 52-22-21-08-290 COTTER PIN (302).
(5) Connnect the push rod (290) with the actuation lever (297) as follows:
(a) If removed, install the bush (292) to the actuation lever (297).
(b) Put the eye-end of the push rod (290) in position to the fork-end of the actuation lever (297).
(c) Install the bolt (303), the washers (296), the bush (291) and the nut (294) to the actuation lever (297).
(d) Tighten the nut (294) and safety it with the new AIPC 52-22-21-07-260 COTTER PIN (295).
(6) Connnect the push rod (304) with the engaging lever (298) as follows:
(a) If removed, install the bush (306) to the engaging lever (298).
(b) Put the eye-end of the push rod (304) in position to the fork-end of the engaging lever (298).
(c) Install the bolt (307), the washers (308), the bush (305) and the nut (309) to the engaging lever (298).
(d) Tighten the nut (309) and safety it with the new AIPC 52-22-21-08-290 COTTER PIN (310).
(7) Install the locking indicator assembly (280) as follows:
(a) Put the locking indicator assembly (280) in position to the door structure and attach it with the bolts (282) and the nuts (281).
(b) Put the indication lever (286) in position to the joint (288) and attach it with the pin (287).
(c) Safety the pin (287) with the washer (285) and the new AIPC 52-22-21-08-260 COTTER PIN (284).
Subtask 52-22-21-820-052-A ** ON A/C NOT FOR ALL NOTE: Make sure that the punch mark on each lever aligns with the notch of the locking shaft during the installation.
(1) Put the locking shaft (293) in position at the door structure so that it engages with the structural bearing (317). (2) Install the flange bearing (312) as follows:
(a) Put the flange bearing (312) in position to the door structure.
(b) Make sure that flange bearing (312) engages with the end of the locking shaft (293).
(c) Attach the flange bearing (312) with the bolts (311) and the nuts (313) to the door structure.
(3) Turn the locking shaft (293) to make sure that it moves easily.
(4) Connnect the spring rod assembly (300) with 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) Put the fork-end of the spring rod assembly (300) in position to the indication lever (286) and attach it with the pin (299). (b) Safety the pin (299) with the washer (301) and the new AIPC 52-22-21-08-290 COTTER PIN (302).
(5) Connnect the push rod (290) with the actuation lever (297) as follows:
(a) If removed, install the bush (292) to the actuation lever (297).
(b) Put the eye-end of the push rod (290) in position to the fork-end of the actuation lever (297).
(c) Install the bolt (303), the washers (296), the bush (291) and the nut (294) to the actuation lever (297).
(d) Tighten the nut (294) and safety it with the new AIPC 52-22-21-07-260 COTTER PIN (295).
(6) Connnect the push rod (304) with the engaging lever (298) as follows:
(a) If removed, install the bush (306) to the engaging lever (298).
(b) Put the eye-end of the push rod (304) in position to the fork-end of the engaging lever (298).
(c) Install the bolt (307), the washers (308), the bush (305) and the nut (309) to the engaging lever (298).
(d) Tighten the nut (309) and safety it with the new AIPC 52-22-21-08-290 COTTER PIN (310).
(7) Install the locking indicator assembly (280) as follows:
(a) Put the locking indicator assembly (280) in position to the door structure and attach it with the bolts (282) and the nuts (281).
(b) Put the indication lever (286) in position to the joint (288) and attach it with the pin (287).
(c) Safety the pin (287) with the washer (285) and the new AIPC 52-22-21-08-260 COTTER PIN (284).
F. Make sure that the locking shaft mechanism is correctly adjusted (Ref. AMM TASK 52-22-00-820-003).
5. Close-upSubtask 52-22-21-865-064-A ** ON A/C NOT FOR ALL
A. Make sure that this(these) circuit breaker(s) is(are) closed:
Subtask 52-22-21-410-060-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 |
B. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Install the insulation mats in the door structure.
(3) Install the door linings (Ref. AMM TASK 25-23-47-400-012).
(4) Do the special precaution for the door damper and emergency operation cylinder (Ref. AMM TASK 52-22-00-860-004).
(5) Close applicable the door (Ref. AMM TASK 52-22-00-410-001).
(6) Remove the access platform(s).
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Install the insulation mats in the door structure.
(3) Install the door linings (Ref. AMM TASK 25-23-47-400-012).
(4) Do the special precaution for the door damper and emergency operation cylinder (Ref. AMM TASK 52-22-00-860-004).
(5) Close applicable the door (Ref. AMM TASK 52-22-00-410-001).
(6) Remove the access platform(s).