Subtask 52-31-21-020-054-A
A. Removal of the Interlock Mechanism NOTE : Remove the interlock mechanism which includes the roller lever
____ (5), the interlock lever (16) and the spring pin (15) carefully because the spring (24) is under load.
(1)
Disconnect the roller lever (5) from the structure bracket as follows:
(a)
Remove and discard the cotter pin (8) from the castle nut (7).
(b)
Remove the castle nut (7), the washers (2) and the bolt (1) from the structure bracket.
(c)
Move the roller end of the roller lever (5) through the cutout of the cargo door structure inboard.
(2)
Disconnect the interlock lever (16) from the structure bracket as follows:
(a)
Release the retaining ring (22) and remove the pin (19) from the structure bracket.
(b)
Remove and discard the cotter pin (10) from the castle nut (11).
(c)
Remove the castle nut (11), the washers (12) and the bolt (18) from the structure bracket.
(3)
Remove the interlock mechanism from the cargo door as follows:
(a)
Pull the interlock mechansim down until the interlock lever (16) is free from the structure bracket.
(b)
Remove the interlock mechanism so that the spring pin (15) disengages from the spring sleeve (23).
(4)
If necessary, remove the bushes (4),(14) from the roller lever (5) and the interlock lever (16).
(5)
If necessary, remove the flanged bushes (3),(6) and (13) from the structure bracket.
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(6) Remove the spring sleeve (23) from the structure bracket as follows:
(a)
Remove the spring (24) from the spring sleeve (23).
(b)
Release the retaining ring (9) from the pin (20).
(c)
Remove the pin (20) together with the spacers (21) and the spring sleeve (23) from the cargo door.
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TASK 52-31-21-400-006
Installation of the Interlock Mechanism
1. Reason for the Job
__________________
Self Explanatory
2. Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
-------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific access platform 3.5 m (11 ft. 6 in.)
B. Consumable Materials
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
No specific lockwire, corrosion-resistant steel, dia 0.8 mm
(0.032 in.)
Material No. 04-004 USA MIL-PRF-23827 TYPE I SYNTH.ESTER BASED GREASE HIGH PRESSURE (Ref. 20-31-00)
Material No. 15-005 AIB TN 10138 TYPE I GRADE 2 CORROSION PREVENTIVE TEMPORARY PROTECTIVE COMPOUND (Ref. 20-31-00)
Material No. 15-006 AIB TN 10138 TYPE I GRADE 3 CORROSION PREVENTIVE TEMPORARY PROTECTIVE COMPOUND (Ref. 20-31-00)
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C. Expendable Parts
-------------------------------------------------------------------------------
FIG.ITEM |DESIGNATION |IPC-CSN
-------------------------------------------------------------------------------
8 cotter pin 52-31-21 14 -060 10 cotter pin 52-31-21 14 -130 28 tab washer 52-31-21 15 -080 252 cotter pin 52-31-21 36 -040 253 cotter pin 52-31-21 36 -260 257 cotter pin 52-31-21 36 -040 258 cotter pin 52-31-21 36 -040 274 tab washer 52-31-21 36 -180
D. Referenced Information
-------------------------------------------------------------------------------
REFERENCE DESIGNATION
-------------------------------------------------------------------------------
52-30-00-860-001 Open the FWD or AFT Cargo-Compartment Door with the Yellow Electric Pump 52-30-00-860-002 Close the FWD or AFT Cargo-Compartment Door with the Yellow Electric Pump 52-31-11-820-002 Adjustment of the Door Mechanism
R **ON A/C 001-049, 053-099, 101-149, 151-199, 201-299, 301-399, 401-499,
52-31-21-991-006 Fig. 407
**ON A/C 051-052,
52-31-21-991-006-A Fig. 407A
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3. Job Set-up
__________ R **ON A/C 001-049, 053-099, 101-149, 151-199, 201-299, 301-399, 401-499,
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