4. Procedure
_________ Subtask 52-13-31-020-051
 A. Removal of the Stop Fittings
 (Ref. Fig. 402/TASK 52-13-31-991-002)

 (1)
 Remove the old sealant with CLEANING AGENTS (Material No. 11-004), MISCELLANEOUS (Material No. 19-003) and a non metallic scraper from the stop fitting (10).

 (2)
 Loosen the nuts (11) and remove them.

 (3)
 Remove the screws (12).

 (4) Remove the top fitting (10). Subtask 52-13-31-020-054
 B. Removal of the Buffer
 (Ref. Fig. 402/TASK 52-13-31-991-002)

 (1)
 Remove the old sealant with CLEANING AGENTS (Material No. 11-004), MISCELLANEOUS (Material No. 19-003) and a non metallic scraper from the buffer.

 (2)
 Loosen the nuts (22) and remove them.

 (3)
 Remove the screws (21).

 (4)
 Remove the buffer (20).

 1EFF : ALL 1 52-13-31Page 413 1 1 Feb 01/04R 1 1 1CES 1

 Stop Fittings Figure 402/TASK 52-13-31-991-002
 1EFF : 1 1R 1CES  ALL  1 11 1 52-13-31 Page 414 May 01/98

 Subtask 52-13-31-020-055
 C. Removal of the Guide Fittings
 (1)
 Removal of the upper guide fitting
 (Ref. Fig. 403/TASK 52-13-31-991-005)

 (a)
 Remove the old sealant with CLEANING AGENTS (Material No. 11-004), MISCELLANEOUS (Material No. 19-003) and a non metallic scraper around the guide fitting (31).

 (b)
 Loosen the screws (32) and remove them.

 (c)
 Remove the washers (33), the fitting (31) and the shim (34).

 (2)
 Removal of the upper guide fitting
 (Ref. Fig. 403/TASK 52-13-31-991-005)

 (a)
 Remove the old sealant with CLEANING AGENTS (Material No. 11-004), MISCELLANEOUS (Material No. 19-003) and a non metallic scraper around the guide fitting (41).

 (b)
 Loosen the screws (42) and remove them.

 (c)
 Remove the washers (43), the fitting (41) and the shim (44).

 (3)
 Removal of the lower fittings
 (Ref. Fig. 404/TASK 52-13-31-991-006)

 (a)
 Remove the old sealant with CLEANING AGENTS (Material No. 11-004), MISCELLANEOUS (Material No. 19-003) and a non metallic scraper around the guide fittings (51).

 (b)
 Loosen the screw (52) and remove it.

 (c) Remove the washer (53), the fitting (51) and the shim (54). Subtask 52-13-31-020-056
 D. Removal of the Rollers
 (Ref. Fig. 405/TASK 52-13-31-991-007)

 (1)
 Remove the old sealant with CLEANING AGENTS (Material No. 11-004), MISCELLANEOUS (Material No. 19-003) and a non metallic scraper around the roller (60).

 (2)
 Loosen the nuts (61) and remove them.

 1EFF : ALL 1 52-13-31Page 415 1 1 Feb 01/04R 1 1 1CES 1

 Upper Guide Fittings Figure 403/TASK 52-13-31-991-005
 1EFF : 1 1R 1CES  ALL  1 11 1 52-13-31 Page 416 May 01/98

 Lower Guide Fittings Figure 404/TASK 52-13-31-991-006
 1EFF : 1 1R 1CES  ALL  1 11 1 52-13-31 Page 417 May 01/98

 Roller Figure 405/TASK 52-13-31-991-007
 1EFF : 1 1R 1CES  ALL  1 11 1 52-13-31 Page 418 Feb 01/04

 (3)
 Remove the bolts (62).

 (4)
 Disassemble the roller (60) as follows:

 (a)
 Remove the cotter pin (71) and discard it.

 (b)
 Loosen the nut (72) and remove it.

 (c)
 Remove the washer (73), the bolt (74) and the washer (75).

 (d)
 Remove the bushing (76), the roller (70) and the bushing (77). Subtask 52-13-31-020-057

 E. Removal of the Door Stop Fittings
 (Ref. Fig. 406/TASK 52-13-31-991-008)

 (1)
 Remove the old sealant with CLEANING AGENTS (Material No. 11-004), MISCELLANEOUS (Material No. 19-003) and a non metallic scraper around the door stop fitting (85).

 (2)
 Loosen the nut (82) and remove it.

 (3)
 Remove the lock plate (83) and discard it.

 (4)
 Remove the screw (86).

 (5)
 Loosen and remove the screws (84).

 (6)
 Remove the nuts (81). Subtask 52-13-31-020-058

 F. Removal of the Roller
 (Ref. Fig. 407/TASK 52-13-31-991-009)

 (1)
 Loosen the nuts (91) and remove them.

 (2)
 Remove the bolts (92).

 (3)
　
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