DOC AIRBUS | AMM A320FInstallation of the Drift Pin Mechanism
TASK 52-31-21-400-008-A
Installation of the Drift Pin Mechanism
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
B. Consumable Materials
C. Work Zones and Access Panels
D. Expendable Parts
E. Referenced Information
3. Job Set-up
Subtask 52-31-21-860-062-A
Subtask 52-31-21-910-059-E
Subtask 52-31-21-410-064-A
[Rev.10 from 2021]
2026.04.02 06:27:53 UTC
Installation of the Drift Pin Mechanism
WARNING:
BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.
CAUTION:
IMMEDIATELY AFTER YOU OPEN THE CARGO COMPARTMENT DOOR, RECORD ON THE WORK CARD ON THE DOOR, THE DATE AND TIME WHEN YOU OPENED IT. IF THE CARGO COMPARTMENT DOOR STAYS OPEN FOR 12 HOURS OR MORE, YOU MUST BLEED THE HYDRAULIC SYSTEM RELATED TO IT. IF YOU DO NOT OBEY THESE PRECAUTIONS, THE DOOR CAN CLOSE SUDDENLY WHEN YOU SET THE DOOR TO "CLOSE". THIS CAN CAUSE DAMAGE TO THE DOOR AND TO THE AIRCRAFT STRUCTURE.
1. Reason for the JobSelf 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 | PIN - RIGGING |
| REFERENCE | DESIGNATION |
|---|---|
| (Material No.03HBD9) | Synthetic Ester base Grease-General Purpose Low Temp - |
| (Material No.12ABB1) | Corrosion Preventive Compound-Water Displacing Hard Film - |
| (Material No.12ABC1) | Corrosion Preventive Compound_Water Displacing Soft Film - |
| (Material No.14QFB1) | Wire-Locking Dia: 0.8 mm CRES Nickel Alloy - |
| No specific | lockwire, corrosion-resistant steel, 0.8 mm (0.032 in.) |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| 825AR |
| FIG.ITEM | DESIGNATION | IPC-CSN |
|---|---|---|
| 301 | COTTER PIN | AIPC 52-31-21-38-020 |
| 318 | COTTER PIN | AIPC 52-31-21-38-020 |
| 323 | COTTER PIN | AIPC 52-31-21-38-020 |
| 325 | COTTER PIN | AIPC 52-31-21-38-020 |
| 355 | COTTER PIN | AIPC 52-31-21-38-020 |
| 285 | COTTER PIN | AIPC 52-31-21-38-140 |
| 1 | COTTER PIN | AIPC 52-31-21-38-150 |
| 20 | COTTER PIN | AIPC 52-31-21-38-210 |
| 27 | COTTER PIN | AIPC 52-31-21-38-210 |
| 34 | COTTER PIN | AIPC 52-31-21-38-210 |
| 1 | COTTER PIN | AIPC 52-31-82-48-150 |
| 20 | COTTER PIN | AIPC 52-31-82-48-210 |
| 27 | COTTER PIN | AIPC 52-31-82-48-210 |
| 34 | COTTER PIN | AIPC 52-31-82-48-210 |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 12-22-52-640-002-A | Lubrication of Cargo Door |
| TASK 52-30-00-860-001-A | Open the FWD or Aft Cargo-Compartment Door with the Yellow Electric Pump |
| TASK 52-30-00-860-002-A | Close the FWD or Aft Cargo-Compartment Door with the Yellow Electric Pump |
| TASK 52-31-00-720-001-A | Functional Check of Forward Cargo Compartment Door, Comprising Functional Checks of Locking Mechanism, Interlock Mechanism, Drift Pin Mechanism and Safety Mechanism |
| TASK 52-31-11-820-002-A | Adjustment of the Door Mechanism |
| TASK 52-31-13-400-001-A | Installation of the Lining and the Insulation |
| TASK 52-32-11-820-002-A | Adjustment of the Door Mechanism |
Drift Pin MechanismSubtask 52-31-21-860-062-A
A. Aircraft Maintenance Configuration
(1) Make sure that the FWD cargo-compartment door (referred to as cargo door) is opened and safetied with the actuator safety locks (Ref. AMM TASK 52-30-00-860-001).
(2) Make sure that the ACCESS PLATFORM 4M (13 FT)-ADJUSTABLE in position below the opened cargo door.
(3) Make sure that the access panel 825AR is removed from the cargo door.
(4) Make sure that the lining and insulation of the cargo door is removed.
Subtask 52-31-21-865-072-A (1) Make sure that the FWD cargo-compartment door (referred to as cargo door) is opened and safetied with the actuator safety locks (Ref. AMM TASK 52-30-00-860-001).
(2) Make sure that the ACCESS PLATFORM 4M (13 FT)-ADJUSTABLE in position below the opened cargo door.
(3) Make sure that the access panel 825AR is removed from the cargo door.
(4) Make sure that the lining and insulation of the cargo door is removed.
B. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged:
4. Procedure| 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 |
Subtask 52-31-21-910-059-E
A. Preparation for Installation
(1) Make sure that the parts retained from the removed component are clean and in the correct condition.
(2) Clean the component interfaces and the adjacent area.
(3) Do an inspection of the component interfaces and the adjacent area.
(4) Apply Synthetic Ester base Grease-General Purpose Low Temp - (Material No.03HBD9) to all components of the drift pin mechanism which move.
Subtask 52-31-21-420-065-E ** 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) Clean the component interfaces and the adjacent area.
(3) Do an inspection of the component interfaces and the adjacent area.
(4) Apply Synthetic Ester base Grease-General Purpose Low Temp - (Material No.03HBD9) to all components of the drift pin mechanism which move.
B. Installation of the Drift Pin Assembly
(1) Install the drift pin (283) to the edge member bearing (284) as follows:
(a) If removed, install the bush (288) in the fork end of the drift pin (283).
(b) Move the drift pin (283) into the edge member bearing (284).
(c) Put the linkage (281) on the drift pin (283) and attach it with the bolt (282), the washers (287) and (289) and the nut (286).
(d) Tighten the nut (286) and safety it with the new AIPC 52-31-21-38-140 COTTER PIN (285).
Subtask 52-31-21-420-065-G ** ON A/C NOT FOR ALL (1) Install the drift pin (283) to the edge member bearing (284) as follows:
(a) If removed, install the bush (288) in the fork end of the drift pin (283).
(b) Move the drift pin (283) into the edge member bearing (284).
(c) Put the linkage (281) on the drift pin (283) and attach it with the bolt (282), the washers (287) and (289) and the nut (286).
(d) Tighten the nut (286) and safety it with the new AIPC 52-31-21-38-140 COTTER PIN (285).
B. Installation of the Drift Pin Assembly
(1) Install the drift pin (8) at the edge member bearing (9) as follows:
(a) If removed, install the bush (4) in the fork end of the drift pin (8).
(b) Move the drift pin (8) into the edge member bearing (9).
(c) Put the linkage (6) on the drift pin (8) and attach it with the bolt (7), the washers (3) and (5) and the nut (2).
(d) Tighten the nut (2) and safety it with the new AIPC 52-31-21-38-150 COTTER PIN (1) or AIPC 52-31-82-48-150 COTTER PIN (1).
Subtask 52-31-21-420-069-F ** ON A/C NOT FOR ALL (1) Install the drift pin (8) at the edge member bearing (9) as follows:
(a) If removed, install the bush (4) in the fork end of the drift pin (8).
(b) Move the drift pin (8) into the edge member bearing (9).
(c) Put the linkage (6) on the drift pin (8) and attach it with the bolt (7), the washers (3) and (5) and the nut (2).
(d) Tighten the nut (2) and safety it with the new AIPC 52-31-21-38-150 COTTER PIN (1) or AIPC 52-31-82-48-150 COTTER PIN (1).
C. Installation of the Linkage Assembly
(a) Put the shaft lever (332) in position and move the support shaft (344) into the bearing housing (329).
(c) Assemble the bellcrank lever (299) on support shaft (344).
(2) If necessary, assemble the housing assy (359) as follows:
(a) Put the shaft lever (314) in position and move the support shaft (348) into the housing assy (359).
(c) Assemble the shaft lever (327) and the spacer in position on the support shaft (348).
(e) Put the housing assy (359) in position to the beam (349) and attach it with the screws (358) and the washers (357).
(3) Install the horizontal connection rod (290) as follows:
(a) If required, disassemble the connection rod (290) for the installation as follows:
1 Remove the nuts (295), the washers (294) and the bolts (293).
2 Remove the rod-end (281) and (292) from the center rod (291).
(b) Put the rod-ends (281) and (292) and center rod (291) in position to the door structure.
(c) Assemble the rod-ends (281) and (292) on the center rod (291) and attach them the bolts (293), the washers (294) and the nuts (295).
(d) Install the PIN - RIGGING (311) into the bearing assy (329) and the shaft lever (332).
(e) Connect the rod-end (281) to the drift pin (283) as follows:
1 If removed, install the bush (288) into the drift pin (283).
2 Put the rod-end (281) in position and attach it with the bolt (282), the washers (287) and (289) and the nut (286).
3 Safety the nut (286) with the new AIPC 52-31-21-38-140 COTTER PIN (285).
(f) Connect the rod-end (292) to the bellcrank lever (299) as follows:
1 Put the rod-end (292) in position to the bellcrank lever (299) and attach it with the bolt (298), the washers (297) and the nut (300).
2 Safety the nut (300) with the new AIPC 52-31-21-38-020 COTTER PIN (301).
(4) Do the same steps to install the connection rod (296).
(5) Install the vertical control rod (317) as follows:
(a) Connect the upper fork-end of the control rod (317) from the shaft lever (314) as follows:
1 Put the control rod (317) in position to the shaft lever (314) and attach it with the bolt (315), the washers (316) and the nut (324).
2 Safety the nut (324) with the new AIPC 52-31-21-38-020 COTTER PIN (323).
(b) Connect the lower fork-end of the control rod (317) to the drift pin lever (321) as follows:
1 Put the control rod (317) in position to the drift pin lever (321) and attach it with the bolt (322), the washers (320) and the nut (319).
2 Safety the nut (319) with the new AIPC 52-31-21-38-020 COTTER PIN (318).
(6) Install the vertical control rod (328) as follows:
(a) Make sure that the PIN - RIGGING (311) is installed into the bearing assy (329) and the shaft lever (332).
(b) Make sure that the length of the control rod (328) is between 592.0 mm (23.3071 in.) and 602.0 mm (23.7008 in.).
(c) Connect the upper fork-end of the control rod (328) with the shaft lever (332) as follows:
1 Put the connection rod (328) in position to the shaft lever (332) and attach it with the bolt (330), the washers (331) and the nut (333).
2 Safety the nut (333) with the new AIPC 52-31-21-38-020 COTTER PIN (355).
(d) Connect the lower fork-end of the connection rod (328) to the shaft lever (327) as follows:
1 If necessary, adjust the length of the connection rod (328) so that its fork-end aligns with the shaft lever (327).
3 Safety the nut (326) with the new AIPC 52-31-21-38-020 COTTER PIN (325).
(7) Remove the rigging pin (311) from the bearing assy (329).
Subtask 52-31-21-420-069-H ** ON A/C NOT FOR ALL NOTE: The linkage assembly includes the horizontal connection rods (290) and (296) and the vertical control rods (328) and (317).
(1) If necessary, assemble the bearing housing (329) as follows: (a) Put the shaft lever (332) in position and move the support shaft (344) into the bearing housing (329).
NOTE: Make sure that their attachment holes are align.
(b) Install the tapered pin (343), the spacer (342) and the nut (341) and tighten it. (c) Assemble the bellcrank lever (299) on support shaft (344).
NOTE: Make sure that their attachment holes are align.
(d) Install the tapered pin (345), the spacer (346) and the nut (347) and tighten it. (2) If necessary, assemble the housing assy (359) as follows:
(a) Put the shaft lever (314) in position and move the support shaft (348) into the housing assy (359).
NOTE: Make sure that their attachment holes are align.
(b) Install the tapered pin (352), the spacer (351) and the nut (350) and tighten it. (c) Assemble the shaft lever (327) and the spacer in position on the support shaft (348).
NOTE: Make sure that their attachment holes are align.
(d) Install the tapered pin (354), the spacer (355) and the nut (356) and tighten it. (e) Put the housing assy (359) in position to the beam (349) and attach it with the screws (358) and the washers (357).
(3) Install the horizontal connection rod (290) as follows:
(a) If required, disassemble the connection rod (290) for the installation as follows:
1 Remove the nuts (295), the washers (294) and the bolts (293).
2 Remove the rod-end (281) and (292) from the center rod (291).
(b) Put the rod-ends (281) and (292) and center rod (291) in position to the door structure.
(c) Assemble the rod-ends (281) and (292) on the center rod (291) and attach them the bolts (293), the washers (294) and the nuts (295).
(d) Install the PIN - RIGGING (311) into the bearing assy (329) and the shaft lever (332).
(e) Connect the rod-end (281) to the drift pin (283) as follows:
1 If removed, install the bush (288) into the drift pin (283).
2 Put the rod-end (281) in position and attach it with the bolt (282), the washers (287) and (289) and the nut (286).
3 Safety the nut (286) with the new AIPC 52-31-21-38-140 COTTER PIN (285).
(f) Connect the rod-end (292) to the bellcrank lever (299) as follows:
1 Put the rod-end (292) in position to the bellcrank lever (299) and attach it with the bolt (298), the washers (297) and the nut (300).
2 Safety the nut (300) with the new AIPC 52-31-21-38-020 COTTER PIN (301).
(4) Do the same steps to install the connection rod (296).
(5) Install the vertical control rod (317) as follows:
(a) Connect the upper fork-end of the control rod (317) from the shaft lever (314) as follows:
1 Put the control rod (317) in position to the shaft lever (314) and attach it with the bolt (315), the washers (316) and the nut (324).
2 Safety the nut (324) with the new AIPC 52-31-21-38-020 COTTER PIN (323).
(b) Connect the lower fork-end of the control rod (317) to the drift pin lever (321) as follows:
1 Put the control rod (317) in position to the drift pin lever (321) and attach it with the bolt (322), the washers (320) and the nut (319).
2 Safety the nut (319) with the new AIPC 52-31-21-38-020 COTTER PIN (318).
(6) Install the vertical control rod (328) as follows:
(a) Make sure that the PIN - RIGGING (311) is installed into the bearing assy (329) and the shaft lever (332).
(b) Make sure that the length of the control rod (328) is between 592.0 mm (23.3071 in.) and 602.0 mm (23.7008 in.).
(c) Connect the upper fork-end of the control rod (328) with the shaft lever (332) as follows:
1 Put the connection rod (328) in position to the shaft lever (332) and attach it with the bolt (330), the washers (331) and the nut (333).
2 Safety the nut (333) with the new AIPC 52-31-21-38-020 COTTER PIN (355).
(d) Connect the lower fork-end of the connection rod (328) to the shaft lever (327) as follows:
1 If necessary, adjust the length of the connection rod (328) so that its fork-end aligns with the shaft lever (327).
NOTE: Safety the connection rod (328) after the final adjustment with 14QFB1 Wire-Locking Dia: 0.8 mm CRES Nickel Alloy -
2 Put the control rod (328) into the position to the the shaft lever (327) and attach it with the bolt (313), the washers (312) and the nut (326). 3 Safety the nut (326) with the new AIPC 52-31-21-38-020 COTTER PIN (325).
(7) Remove the rigging pin (311) from the bearing assy (329).
C. Installation of the Linkage Assembly
(a) Install the PIN - RIGGING (30) into the bellcrank lever (37).
(b) Install the PIN - RIGGING (38) into the bellcrank lever (40).
(c) Connect the connecting rod (42) to the bellcrank lever (41) as follows:
1 Put the connecting rod (42) in position at the bellcrank lever (41) and attach it with the bolt (24), the washers (25) and the nut (26).
2 Safety the nut (26) with the new AIPC 52-31-21-38-210 COTTER PIN (27) or AIPC 52-31-82-48-210 COTTER PIN (27).
(2) Do the same steps again to install the connection rod (28).
(3) Install the connecting rod (29) as follows:
(a) Put the connecting rod (29) in position between the bellcranks (41) and (39), and install the bolt (23), the washers (22) and the nut (21).
1 Safety the nut (21) with the new AIPC 52-31-21-38-210 COTTER PIN (20) or AIPC 52-31-82-48-210 COTTER PIN (20).
(b) Connect the connecting rod (28) to the bellcrank (37) with the bolt (24), the washers (25) and the nut (26).
1 Safety the nut (26) with the new AIPC 52-31-21-38-210 COTTER PIN (27) or AIPC 52-31-82-48-210 COTTER PIN (27).
(4) Install the vertical control rod (35) as follows:
(a) Connect the upper fork-end of the control rod (35) to the bellcrank lever (40) as follows:
1 Put the control rod (35) in position and attach it with the bolt (31), the washers (32) and the nut (33).
2 Safety the nut (33) with the new AIPC 52-31-21-38-210 COTTER PIN (34) or AIPC 52-31-82-48-210 COTTER PIN (34).
(b) Connect the lower fork-end of the control rod (35) to the cover assy (36) as follows:
1 Put the control rod (35) in position and attach it with the bolt (31), the washers (32) and the nut (33).
2 Safety the nut (33) with the new AIPC 52-31-21-38-210 COTTER PIN (34) or AIPC 52-31-82-48-210 COTTER PIN (34).
(5) Remove the rigging pin (30) from the bellcrank lever (37).
(6) Remove the rigging pin (38) from the bellcrank lever (40).
Subtask 52-31-21-720-056-B NOTE: The linkage assembly includes the horizontal connection rods (28), (29) and (42) and the vertical control rod (35).
(1) Install the horizontal connection rod (35) as follows: (a) Install the PIN - RIGGING (30) into the bellcrank lever (37).
(b) Install the PIN - RIGGING (38) into the bellcrank lever (40).
(c) Connect the connecting rod (42) to the bellcrank lever (41) as follows:
1 Put the connecting rod (42) in position at the bellcrank lever (41) and attach it with the bolt (24), the washers (25) and the nut (26).
2 Safety the nut (26) with the new AIPC 52-31-21-38-210 COTTER PIN (27) or AIPC 52-31-82-48-210 COTTER PIN (27).
(2) Do the same steps again to install the connection rod (28).
(3) Install the connecting rod (29) as follows:
(a) Put the connecting rod (29) in position between the bellcranks (41) and (39), and install the bolt (23), the washers (22) and the nut (21).
1 Safety the nut (21) with the new AIPC 52-31-21-38-210 COTTER PIN (20) or AIPC 52-31-82-48-210 COTTER PIN (20).
(b) Connect the connecting rod (28) to the bellcrank (37) with the bolt (24), the washers (25) and the nut (26).
1 Safety the nut (26) with the new AIPC 52-31-21-38-210 COTTER PIN (27) or AIPC 52-31-82-48-210 COTTER PIN (27).
(4) Install the vertical control rod (35) as follows:
(a) Connect the upper fork-end of the control rod (35) to the bellcrank lever (40) as follows:
1 Put the control rod (35) in position and attach it with the bolt (31), the washers (32) and the nut (33).
2 Safety the nut (33) with the new AIPC 52-31-21-38-210 COTTER PIN (34) or AIPC 52-31-82-48-210 COTTER PIN (34).
(b) Connect the lower fork-end of the control rod (35) to the cover assy (36) as follows:
1 Put the control rod (35) in position and attach it with the bolt (31), the washers (32) and the nut (33).
2 Safety the nut (33) with the new AIPC 52-31-21-38-210 COTTER PIN (34) or AIPC 52-31-82-48-210 COTTER PIN (34).
(5) Remove the rigging pin (30) from the bellcrank lever (37).
(6) Remove the rigging pin (38) from the bellcrank lever (40).
D. Do a functional test of the locking mechanism to make sure that the drift pins operate satisfactorily. (Ref. AMM TASK 52-31-00-720-001)
Subtask 52-31-21-820-051-C ** ON A/C NOT FOR ALL E. Adjustment of the the Drift Pin Mechanism
(1) Set the drift pins in their fully extended position as follows:
(a) Press the roller lever of the interlock mechanism outboard to release the blockage of the door handle.
(b) Move the door handle down to the locked position and push it into the recess of the door structure.
(2) Measure the distance between the edge member of the cargo door and the end of the extended drift pin.
(4) Pull the door handle away from the recess of the door structure to retract the drift pins.
Subtask 52-31-21-820-051-D ** ON A/C NOT FOR ALL (1) Set the drift pins in their fully extended position as follows:
(a) Press the roller lever of the interlock mechanism outboard to release the blockage of the door handle.
(b) Move the door handle down to the locked position and push it into the recess of the door structure.
(2) Measure the distance between the edge member of the cargo door and the end of the extended drift pin.
NOTE: The distance must be between 37.7 mm (1.4843 in.) and 34.7 mm (1.3661 in.).
(3) If the distance is not correct, adjust the length of the control rod (328) (Ref. AMM TASK 52-31-11-820-002). (4) Pull the door handle away from the recess of the door structure to retract the drift pins.
E. Adjustment of the the Drift Pin Mechanism
(1) Set the drift pins in their fully extended position as follows:
(a) Press the roller lever of the interlock mechanism outboard to release the blockage of the door handle.
(b) Move the door handle down to the locked position and push it into the recess of the door structure.
(2) Measure the distance between the edge member of the cargo door and the end of the extended drift pin.
(4) Pull the door handle away from the recess of the door structure to retract the drift pins.
Subtask 52-31-21-710-052-C (1) Set the drift pins in their fully extended position as follows:
(a) Press the roller lever of the interlock mechanism outboard to release the blockage of the door handle.
(b) Move the door handle down to the locked position and push it into the recess of the door structure.
(2) Measure the distance between the edge member of the cargo door and the end of the extended drift pin.
NOTE: The distance must be between 32.5 mm (1.2795 in.) and 35.5 mm (1.3976 in.).
(3) If the distance is not correct, adjust the door mechanism (Ref. AMM TASK 52-31-11-820-002). (4) Pull the door handle away from the recess of the door structure to retract the drift pins.
F. Operational Test of the Drift Pin Mechanism
(1) Press the roller lever of the interlock mechanism outboards to release the blockage of the door handle at the opened cargo door.
(2) Push the door handle into the recess to operate the drift pin mechanism.
Subtask 52-31-21-420-068-D ** ON A/C NOT FOR ALL (1) Press the roller lever of the interlock mechanism outboards to release the blockage of the door handle at the opened cargo door.
(2) Push the door handle into the recess to operate the drift pin mechanism.
- Make sure that the drift pins extent correctly and the linkage assembly move lightly.
- Make sure that the drift pins retract correctly and the linkage assembly move lightly.
G. Final Installation
(1) Make sure that the control rod (328) is correctly safetied with14QFB1 Wire-Locking Dia: 0.8 mm CRES Nickel Alloy -
(2) Make sure that the drift pins are correctly lubricated (Ref. AMM TASK 12-22-52-640-002).
Subtask 52-31-21-420-068-E ** ON A/C NOT FOR ALL (1) Make sure that the control rod (328) is correctly safetied with
(2) Make sure that the drift pins are correctly lubricated (Ref. AMM TASK 12-22-52-640-002).
G. Final Installation
(1) Make sure that the horizontal connection rod (29) is correctly safetied with lockwire, corrosion-resistant steel, 0.8 mm (0.032 in.) (Ref. AMM TASK 52-31-11-820-002).
(2) Make sure that the vertical connection rod (35) is correctly safetied with lockwire, corrosion-resistant steel, 0.8 mm (0.032 in.) (Ref. AMM TASK 52-32-11-820-002).
5. Close-up(1) Make sure that the horizontal connection rod (29) is correctly safetied with lockwire, corrosion-resistant steel, 0.8 mm (0.032 in.) (Ref. AMM TASK 52-31-11-820-002).
(2) Make sure that the vertical connection rod (35) is correctly safetied with lockwire, corrosion-resistant steel, 0.8 mm (0.032 in.) (Ref. AMM TASK 52-32-11-820-002).
Subtask 52-31-21-410-064-A
A. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Apply Corrosion Preventive Compound_Water Displacing Soft Film - (Material No.12ABC1) or Corrosion Preventive Compound-Water Displacing Hard Film - (Material No.12ABB1) to all the components of the drift pin mechanism and to the adjacent cargo door structure.
(3) Install the lining and insulation of the cargo door (Ref. AMM TASK 52-31-13-400-001).
(4) Install the access panel 825AR on the cargo door.
(5) Remove the actuator safety locks and close the cargo door (Ref. AMM TASK 52-30-00-860-002).
(6) Remove the access platform(s).
Subtask 52-31-21-865-073-A (1) Make sure that the work area is clean and clear of tools and other items.
(2) Apply Corrosion Preventive Compound_Water Displacing Soft Film - (Material No.12ABC1) or Corrosion Preventive Compound-Water Displacing Hard Film - (Material No.12ABB1) to all the components of the drift pin mechanism and to the adjacent cargo door structure.
(3) Install the lining and insulation of the cargo door (Ref. AMM TASK 52-31-13-400-001).
(4) Install the access panel 825AR on the cargo door.
(5) Remove the actuator safety locks and close the cargo door (Ref. AMM TASK 52-30-00-860-002).
(6) Remove the access platform(s).
B. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):
| 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 |