Linkage of the Vent Door
 Figure 404B/TASK 52-32-21-991-003-B

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 Linkage of the Vent Door Mechanism
 Figure 404C/TASK 52-32-21-991-003-A 
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 (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).

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 B. Removal of the Gearbox **ON A/C 001-049, 053-099, 101-105, 201-220,
 (Ref. Fig. 405/TASK 52-32-21-991-004) **ON A/C 151-199,
 (Ref. Fig. 405C/TASK 52-32-21-991-004-A) **ON A/C 001-049, 053-099, 101-105, 151-199, 201-220,
 (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).
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R  Linkage of the Vent Door 
R  Figure 404D/TASK 52-32-21-991-003-D 
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 Gear Box of the Vent Door Mechanism
 Figure 405/TASK 52-32-21-991-004

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 Gear Box of the Vent Door Mechanism
 Figure 405A/TASK 52-32-21-991-004-C 
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 Cover Assembly of the Vent Door Mechanism Figure 405B/TASK 52-32-21-991-004-B
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