(a)
 Press the roller lever of the interlock mechanism outboard to release the blockage of the locking shaft.

 (b)
 Turn the locking handle up to the locked position and push it into the recess of the handle flap.

 (2)
 Disconnect the locking hook (5) from the linkage (13) as follows:

 (a)
 Remove and discard the cotter pin (10) from the castle nut (11).

 (b)
 Remove the castle nut (11), the washers (12) and the bolt (14) from the lower fork end of the linkage (13).

 (c)
 Move the linkage (13) to disconnect it from the locking hook (5).

 (d)
 Remove the bush (9) from the lower fork end of the linkage (13).

 (3)
 Disconnect the locking hook (5) from the cargo door frame as follows:

 (a)
 Remove and discard the cotter pin (7) from the castle nut (6).

 (b)
 Remove the castle nut (6) and the washer (2) from the locking hook bolt (1).

 1EFF : 051-052, 1 52-31-21Page 492 1 1 Aug 01/05R 1 1 1CES 1

 Locking Unit
 Figure 408/TASK 52-31-21-991-007
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1  1  Aug 01/05
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1CES  1

 (c) Support the locking hook (5) and remove the washer (2) and the locking hook bolt (1) from the cargo door frame.
 (4)
 Move the locking hook (5) outboard through the cutout of the cargo door structure.

 (5)
 If necessary, remove the bushes (3) from the cargo door frame.

 (6) Remove the sleeves (4) and (8) from the locking hook (5). Subtask 52-31-21-020-061
 B. Removal of the Linkage and the Bellcrank Lever
 (1)
 Remove the eccentric bolt (25) from the cargo door frame as follows to get movement for removal:

 (a)
 Remove and discard the cotter pin (20) from the castle nut (21).

 (b)
 Remove the castle nut (21) and the washer (22) from the special bolt (24).

 (c)
 Disengage the serrated plate (23) from the special bolt (24) and the eccentric bolt (25).

 (d)
 Remove and discard the cotter pin (28) from the castle nut (27).

 (e)
 Remove the castle nut (27), the washer (26) and the eccentric bolt (25) from the cargo door frame.

 (2)
 Disconnect the bellcrank lever (33) from the cargo door frame as follows:

 (a)
 Remove and discard the cotter pin (36) from the castle nut (35).

 (b)
 Remove the castle nut (35), the washers (30) and the bolt (29) from the cargo door frame.

 (c)
 Move the linkage (13) down and remove the bushes (31) from the cargo door frame.

 (3)
 Move the linkage (13) so that the connection of the spring unit (44) and the bellcrank lever (33) comes free from the cargo door frame.

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 (4)
 Disconnect the bellcrank lever (33) from the spring unit (44) as follows:

 (a)
 Remove and discard the cotter pin (41) from the castle nut (40).

 (b)
 Remove the castle nut (40), the washers (38) and the bush (39) from the bolt (37).

 (c)
 Support the linkage (13) and remove the washer (38) and the bolt

 (37) from the fork end of the bellcrank lever (19).

 (5)
 Move the linkage (13) and the bellcrank lever (33) outboard through the cutout of the cargo door structure.

 (6)
 If necessary, disconnect the bellcrank lever (33) from the linkage

 (13)
 as follows:

 (a)
 Remove and discard the cotter pin (19) from the castle nut (18).

 (b)
 Remove the castle nut (18), the washers (16) and the bolt (15) from the upper fork end of the linkage (13).

 (c)
 Remove the bellcrank (33) from the linkage (13).

 (d)
 Remove the sleeve (34) from the bellcrank lever (33).

 (e) Remove the bush (17) from the upper fork end of the linkage (13). Subtask 52-31-21-020-062
 C. Removal of the Spring Unit
 (1)
 Pull out the locking shaft until you can move the applicable lever assy (51) from the cargo door frame (Ref. TASK 52-31-21-000-005).

 (2)
 Disconnect the spring unit (44) from the lever assy (51) as follows:
　
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