(2)
 Make sure that the access platform is in position below the closed door.

 (3)
 Make sure that the special precaution on the door damper and emergency operation cylinder is completed (Ref. TASK 52-22-00-860-003).

 (4)
 Make sure that the door linings are removed (Ref. TASK 25-23-47-000-012) and (Ref. TASK 25-23-47-000-013).

 4. Procedure
_________ Subtask 52-22-22-910-050
 A. Preparation for Installation
 (1)
 Make sure that the parts retained from the removed component are clean and in the correct condition.

 (2)
 Do an inspection of the component interface and/or the adjacent area.

 (3)
 Make sure that the bushes (17), (18), (19), (20), (32) and (34) are in the correct condition.

 (4)
 Apply COMMON GREASE (Material No. 04-004) to all surfaces of parts which move.

 (5)
 If necessary, pull up the slide control handle of the replacement arm/disarm unit and install the PIN - SAFETY SLIDE (98A52107632000)

 Subtask 52-22-22-420-050
 B. Installation of the Arm/Disarm Unit
 (Ref. Fig. 401/TASK 52-22-22-991-001)

 (1) If removed, install the link rod (15) on the arm/disarm unit (11) as follows:
 (a) If removed, install the bush (17) in the fork-end of the link rod (15).
 1EFF : 301-399, 1 52-22-22Page 408 1 1 May 01/04 1 1 1CES 1

 (b)
 Put the fork-end of the link rod (15) in position on the lever of the arm/disarm unit (11).

 (c)
 Install the bolt (16), the washers (14), the bush (18) and the nut (12).

 (d)
 Tighten the nut (12) and safety it with the new cotter pin (13).

 (2)
 If removed, install the spring unit (33) on the arm/disarm unit (11) as follows:

 (a)
 Put the fork-end of the spring unit (33) on the lever of the arm/disarm unit (11).

 (b)
 Install the pin (36) and the washers (37).

 (c)
 Safety the pin (36) with the new cotter pin (38).

 (3)
 Put the arm/disarm unit (11) in position and attach it the bolts (8) and the washers (7) on the door structure.

 (4)
 Put the indicator plate (10) in position and attach it the screws (9), the washers (44), and the nuts (43) on the door structure.

 (5)
 Attach the spring unit (33) on the structure bracket (28) as follows:

 (a)
 If removed, install the bush (34) in the fork-end of the strucure bracket (28).

 (b)
 Put the eye-end of the spring unit (33) in position in the fork-end of the structure bracket (28).

 (c)
 Install the bolt (26), the washers (27) and (29), the bush (32) and the nut (30).

 (d)
 Tighten the nut (30) and safety it with the new cotter pin (31).

 (6)
 Attach the spring rod assy (40) to the lever of the arm/disarm unit

 (11)
 as follows:

 (a)
 Put the fork-end of the spring rod assy (40) in position on the lever of the arm/disarm unit (11).

 (b)
 Install the pin (39) and the washer (42).

 (c)
 Safety the pin (39) with the new cotter pin (41).

 1EFF : 301-399, 1 52-22-22Page 409 1 1 May 01/04 1 1 1CES 1

 (7) Attach the push rod (1) to the arm/disarm unit (11) as follows:
 (a)
 Put the lower eye-end of the push rod (1) in position on the fork-lever of the arm/disarm unit (11).

 (b)
 Install the bolt (35), the washers (2) and (6), the spacer (3) and the nut (5).

 (c) Tighten the nut (5) and safety it with the new cotter pin (4). Subtask 52-22-22-720-050
 C. Do the functional test to make sure that the slide release mechanism operates satisfactorily (Ref. TASK 52-22-00-720-001).
 5. Close-up
________ Subtask 52-22-22-865-052
 A. Make sure that this(these) circuit breaker(s) is(are) closed:
 13WN, 15WN, 48WV

 Subtask 52-22-22-410-051
 B. Close Access
 (1)
 Make sure that the work area is clean and clear of tool(s) and other items.

 (2)
 Install the insulation mats in the door structure.

 (3)
 Install the door linings (Ref. TASK 25-23-47-400-012) and (Ref. TASK 25-23-47-400-013) as required.

 (4)
 Do the special precaution for the door damper and emergency operation cylinder (Ref. TASK 52-22-00-860-004).
　
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