Gear Box of the Vent Door Mechanism
Figure 405C/TASK 52-32-21-991-004-A
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(b)
Move the output shaft down through the flange bearing (122) and the structural bearings at longeron (116).
(c)
Remove the gear box (123) together with the laminated shim (115) and the lever (124) from the longeron (116).
(d)
Remove the laminated shim (115) from the output shaft of the gear box (123).
(e)
Remove the lever (124) from the drive shaft of the gear box (123).
(4) If necessary, remove the nuts (114), the washers (113), the bolts
(112) and the flange bearing (122) from the support bracket (117). **ON A/C 051-052,
Subtask 52-32-21-020-052-B
A. Removal of the Gear Box Linkage
(Ref. Fig. 404A/TASK 52-32-21-991-003-C)
(1)
Disconnect the drawbar (7) from the shaft lever (10) as follows:
(a)
Remove and discard the cotter pin (15) from the nut (14).
(b)
Remove the nut (14), the washers (12), the bush (13) and the bolt
(11) from the shaft lever (10).
(c)
Remove the eye end of the drawbar (7) from the fork end of the shaft lever (10).
(2)
Disconnect the drawbar (7) from the actuator arm (3) of the vent door as follows:
(a)
Remove and discard the cotter pin (6) from the nut (5).
(b)
Remove the nut (5), the washers (2), the bush (4) and the bolt
(1) from the actuator arm.
(c)
Remove the eye end of the drawbar (7) from the actuator arm (3).
(3)
Disconnect the connection rod (51) from the vent door lever (54) of the safety shaft as follows:
(a) Remove and discard the cotter pin (57) from the nut (56).
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(b)
Remove the nut (56), the washers (52), the bush (55) and the bolt
(53) from the vent door lever (54).
(c)
Remove the lower eye end of the connection rod (51) from the fork end of the vent door lever (54).
(4)
Disconnect the connection rod (51) from the lever (35) as follows:
(a)
Remove and discard the cotter pin (46) from the nut (47).
(b)
Remove the nut (47), the washers (48), the bush (49) and the bolt
(50) from the lever (35).
(c)
Remove the upper eye end of the connection rod (51) from the fork end of the lever (35).
(5)
Disconnect the link assy (44) from the target lever (39) as follows:
(a)
Remove and discard the cotter pin (41) from the nut (42).
(b)
Remove the nut (42), the washers (40), the sleeve (43) and the bolt (45) from the link assy (44).
(c)
Remove the fork end of the link assy (44) from the target lever (39).
(6)
Disconnect the link assy (44) from the drive shaft lever (61) as follows:
(a)
Remove and discard the cotter pin (58) from the nut (59).
(b)
Remove the nut (59) and the washer (60) from the threaded end of the drive shaft lever (61).
(c)
Remove the eye end of the link assy (44) from the threaded end of the drive shaft lever (61).
Subtask 52-32-21-020-053-B
B. Removal of the Gearbox
(Ref. Fig. 405A/TASK 52-32-21-991-004-C)
(1) Disassemble the drive shaft lever (61) from the drive shaft of the gear box (28) as follows:
(a) Remove the nuts (38), the washers (37), the sleeves (36) and the tapered pins (34) from the lever (35).
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(b)
Remove the nuts (33), the washers (32) and the tapered pins (31) from the safety cam (30).
(c)
Hold the safety cam (30) so that it does not fall down during the removal of the drive shaft lever (61).
(d)
Pull the drive shaft lever (61) from the cargo door frame and remove the safety cam (30).
(2)
Remove the shaft lever (10) from the output shaft of the gear box
(27)
as follows:
(a)
Remove the nuts (18), the washers (17), the sleeves (16) and the tapered pins (9) from the shaft lever (10).
(b)
Remove the protection plug (8) from the shaft lever (10).
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