Removal of the Switch Mechanism

TASK 52-31-21-000-009-A
Removal of the Switch Mechanism

ZONE: 825

1. Reason for the Job
To replace the target lever and/or the link assy on the closed FWD cargo-compartment door (referred to as cargo door).
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	1	ACCESS PLATFORM 1M (3 FT)-ADJUSTABLE

B. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
825	FORWARD CARGO COMPARTMENT DOOR
825AR

C. Referenced Information

REFERENCE	DESIGNATION
TASK 52-31-14-000-801-A	Removal of the FWD Cargo-Compartment Door Access-Panel
Switch Mechanism ** ON A/C NOT FOR ALL
Switch Mechanism ** ON A/C NOT FOR ALL
Switch Mechanism ** ON A/C NOT FOR ALL

3. Job Set-up
Subtask 52-31-21-010-067-B

A. Get Access
(1) Put the ACCESS PLATFORM 1M (3 FT)-ADJUSTABLE in position for the cargo door.
(2) Pull the door handle away from the recess of the door structure up to the 65 degree position.
(3) Remove access panel 825AR to get access to the switch mechanism (Ref. AMM TASK 52-31-14-000-801).

4. Procedure
Subtask 52-31-21-020-057-B ** ON A/C NOT FOR ALL

A. Removal of the Switch Mechanism

Switch Mechanism ** ON A/C NOT FOR ALL

(1) Remove the link assembly (88) as follows:
(a) Disconnect the fork end (95) from the target lever (90) as follows:
1 Remove and discard the cotter pin (91) from the nut (92).
2 Remove the nut (92), the washer (93) and the bolt (89) from the fork end (95).
3 Remove the fork end (95) from the target lever (90).
4 If necessary, remove the sleeve (94) from the fork end (95).
(b) Disconnect the fork end (99) from the drive shaft lever (102) as follows:
1 Remove and discard the cotter pin (96) from the nut (97).
2 Remove the nut (97), the washer (98) and the bolt (101) from the drive shaft lever (102).
3 Remove the fork end (99) from the drive shaft lever (102).
4 If necessary, remove the bush (100) from the fork end (99).
(c) Measure and record the length between the two fork ends (95) and (99) of the removed link assembly (88).
(2) Remove the target lever (90) as follows:
(a) Remove the fork end (95) from the target lever (90). Do the procedure (1)(a) again.
(b) Remove and discard the cotter pin (367) from the nut (368).
(c) Remove the nut (368) and the washer (369) from the support fitting (361) that has a thread.
(d) Pull the target lever (90) together with the target (365) from the support fitting (361).

NOTE: The target (365) is part of proximity switch 32WV.

(e) If necessary, remove the nuts (362), the washers (363), the bolts (366) and the target (365) from the target lever (90).

Subtask 52-31-21-020-057-C ** ON A/C NOT FOR ALL

A. Removal of the Switch Mechanism

Switch Mechanism ** ON A/C NOT FOR ALL

(1) Remove the link assembly (26) as follows:
(a) Disconnect the fork end (15) from the target lever (3) as follows:
1 Remove and discard the cotter pin (14) from the nut (13).
2 Remove the nut (13), the washer (12) and the bolt (10) from the fork end (15).
3 Remove the fork end (15) from the target lever (3).
4 If necessary, remove the sleeve (11) from the fork end (15).
(b) Disconnect the fork end (25) from the drive shaft lever (24) as follows:
1 Remove and discard the cotter pin (19) from the nut (20).
2 Remove the nut (20), the washer (21) and the bolt (23) from the drive shaft lever (24).
3 Remove the fork end (25) from the drive shaft lever (24).
4 If necessary, remove the bush (22) from the fork end (25).
(c) Measure and record the distance between the two fork ends (15) and (25) of the removed link assembly (26).
(2) Remove the target lever (3) as follows:
(a) Remove and discard the cotter pin (6) from the nut (7).
(b) Remove the nut (7) and the washer (8) from the support fitting (9).
(c) Remove the target lever (3) with the target (4) from the support fitting (9).

NOTE: The target (4) is part of proximity switch 32WV.

(d) If necessary, remove the nuts (101), the washers (2), the bolt (5) and the target (4) from the target lever (3).

Subtask 52-31-21-020-057-D ** ON A/C NOT FOR ALL

A. Removal of the Switch Mechanism

Switch Mechanism ** ON A/C NOT FOR ALL

(1) Remove the link assembly (26) as follows:
(a) Disconnect the fork end (15) from the target lever (3) as follows:
1 Remove and discard the cotter pin (14) from the nut (13).
2 Remove the nut (13), the washer (12) and the bolt (10) from the fork end (15).
3 Disconnect the fork end (15) from the target lever (3).
4 If necessary, remove the sleeve (11) from the fork end (15).
(b) Disconnect the fork end (25) from the drive shaft lever (24) as follows:
1 Remove and discard the cotter pin (19) from the nut (20).
2 Remove the nut (20), the washer (21) and the bolt (23) from the drive shaft lever (24).
3 Disconnect the fork end (25) from the drive shaft lever (24).
4 If necessary, remove the bush (22) from the fork end (25).
(c) Measure and record the distance between the fork ends (15) and (25) of the removed link assembly (26).
(2) Remove the target lever (3) as follows:
(a) Remove and discard the cotter pin (6) from the nut (7).
(b) Remove the nut (7) and the washer (8) from the support fitting (9).
(c) Remove the target lever (3) together with the target (4) from the support fitting (9).

NOTE: The target (4) is part of proximity switch 32WV.

(d) If necessary, remove the nuts (1), the washers (2), the bolts (5) and the target (4) from the target lever (3).

[Rev.10 from 2021] 2026.04.02 06:27:53 UTC