Removal of the Arm/Disarm Unit

TASK 52-22-22-000-001-A
Removal of the Arm/Disarm Unit

1. Reason for the Job
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	1	ACCESS PLATFORM 4M (13 FT)-ADJUSTABLE
No specific	AR	SAFETY CLIP - CIRCUIT BREAKER
98A52107632000	1	PIN - SAFETY SLIDE

B. Referenced Information

REFERENCE	DESIGNATION
TASK 25-23-47-000-012-A	Removal of the Door Linings of the LH FWD Emergency Exit Door, zone 231
TASK 25-23-47-000-013-A	Removal of the Door Linings of the RH FWD Emergency Exit Door at zone 251 or RH AFT at zone 252 or LH AFT at zone 232.
TASK 25-23-47-000-802-A	Removal of the Door Linings of the Emergency Exit, zones 251/252
TASK 52-22-00-010-001-A	Opening of the Emergency Exit Doors from the Passenger Compartment
TASK 52-22-00-860-003-A	Special Precaution before Maintenance on the Door Damper and Emergency Operation Cylinder
Arm/Disarm Unit ** ON A/C NOT FOR ALL
Arm/Disarm Unit ** ON A/C NOT FOR ALL

3. Job Set-up
Subtask 52-22-22-010-054-A ** ON A/C NOT FOR ALL

A. Get Access
(1) Open the applicable emergency exit door (referred to as door) as required (Ref. AMM TASK 52-22-00-010-001).
(2) Make sure that the ACCESS PLATFORM 4M (13 FT)-ADJUSTABLE is in position below the partly opened door.
(3) Make sure that the special precaution on the door damper and emergency operation cylinder is completed (Ref. AMM TASK 52-22-00-860-003).

Subtask 52-22-22-865-050-A ** ON A/C NOT FOR ALL

B. Open, safety and tag this(these) circuit breaker(s):

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
121VU	EIS/SLIDES/ARM AND WARN/FLT	15WN	P11
121VU	EIS/SLIDES/ARM AND WARN/GND	13WN	P10
121VU	EIS/SDAC1 AND 2/DOOR/DET/PAX	48WV	P05

Subtask 52-22-22-010-050-A ** ON A/C NOT FOR ALL

C. Get Access
(1) Remove the door linings as required (Ref. AMM TASK 25-23-47-000-012) (Ref. AMM TASK 25-23-47-000-013) from the door.
(2) Carefully disengage the VELCRO tapes and remove the insulation mat from the inner side of the door as required.

Subtask 52-22-22-010-050-B ** ON A/C NOT FOR ALL

C. Get Access
(1) Remove the door linings from the door as required (Ref. AMM TASK 25-23-47-000-802).
(2) Carefully disengage the VELCRO tapes and remove the insulation mat from the inner side of the door as required.

4. Procedure
Subtask 52-22-22-020-050-A ** ON A/C NOT FOR ALL

WARNING: USE PROTECTIVE GOGGLES WHEN YOU REMOVE OR INSTALL A COTTER PIN. EACH TIME YOU REMOVE A COTTER PIN DURING THE TASK, DISCARD IT IMMEDIATELY. A LOOSE COTTER PIN CAN CUT YOU OR MAKE YOU BLIND.

A. Removal of the Arm/Disarm Unit

Arm/Disarm Unit ** ON A/C NOT FOR ALL

(1) Remove the push rod (1) from the arm/disarm unit (11) as follows:
(a) Remove and discard the cotter pin (4) from the nut (5).
(b) Remove the nut (5), the washers (6) and (2), the spacer (3) and the bolt (35) from the fork-lever of the arm/disarm unit (11).
(2) Remove the spring rod assy (40) from the arm/disarm unit (11) as follows:

WARNING: BE CAREFUL WHEN YOU REMOVE OR INSTALL THE SPRING. THE TENSION IN THE SPRING CAN CAUSE INJURY TO PERSONS.

(a) Remove and discard the cotter pin (41) from the pin (39).
(b) Remove the washer (42) and the pin (39) and disconnect the spring rod assy (40) from the lever of the arm/disarm unit (11).
(3) Remove the spring unit (33) from the structure bracket (28) as follows:

WARNING: BE CAREFUL WHEN YOU REMOVE OR INSTALL THE SPRING. THE TENSION IN THE SPRING CAN CAUSE INJURY TO PERSONS.

(a) Remove and discard the cotter pin (31) from the nut (30).
(b) Remove the nut (30), the washers (27) and (29), the bush (32) and the bolt (26).
(c) Remove the lower eye-end of the spring unit (33) from the fork-end structure bracket (28).
(d) If necessary, remove the bush (34) from the structure bracket (28).
(4) Remove the link rod (15) from the intermediate shaft lever (21) as follows:
(a) Remove and discard the cotter pin (24) from the nut (25).
(b) Remove the nut (25), the washers (23), the bush (19) and the bolt (22).
(c) Remove the eye-end of the link rod (15) from the fork-end of the intermediate shaft lever (21).
(d) If necessary, remove the bush (20) from the intermediate shaft lever (21).
(5) Remove the nuts (43), the washers (44), the screws (9) and the indicator plate (10) from the door structure.
(6) Remove the bolts (8), the washers (7) and the arm/disarm unit (11) from the door structure.
(7) If necessary, remove the spring unit (33) from the arm/disarm unit (11) as follows:
(a) Remove and discard the cotter pin (38) from the pin (36).
(b) Remove the washers (37) and the pin (36) and remove the spring unit (33) from the lever of the arm/disarm unit (11).
(8) If necessary, remove the link rod (15) from the arm/disarm unit (11) as follows:
(a) Remove and discard the cotter pin (13) from the nut (12).
(b) Remove the nut (12), the washers (14), the bush (18) and the bolt (16).
(c) Remove the fork-end of the link rod (15) from the lever of the arm/disarm unit (11).
(d) If necessary, remove the bush (17) from the link rod (15).
(9) Remove the 98A52107632000 PIN - SAFETY SLIDE from the arm/disarm unit (11) only when you replace the arm/disarm unit (11).

[Rev.10 from 2021] 2026.04.01 04:11:38 UTC