Subtask 57-51-15-865-054
 C. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged
 -------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------
49VU FLIGHT CONTROLS/SEC1/NORM/SPLY 21CE1 B08 105VU FLT CTL/SEC1/STBY SPLY 22CE B01 121VU FLIGHT CONTROLS/SEC3/SPLY 21CE3 Q19 121VU FLIGHT CONTROLS/SEC2/SPLY 21CE2 Q18

 4. Procedure_________ 
R  **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 301-399,
 (Ref. Fig. 401/TASK 57-51-15-991-002) 
R  **ON A/C 401-499, 
R  (Ref. Fig. 401A/TASK 57-51-15-991-002-A) 
R  **ON A/C ALL
 Subtask 57-51-15-420-052
 A. Preparation for Installation
 (1) Clean the component interface and/or the adjacent area as follows:
 (a) Use a plastic spatula and a MISCELLANEOUS (Material No. 19-003) made moist with CLEANING AGENTS (Material No. 11-026) to remove any sealant from: - the overwing panel - the shroud box.
 (b) Use a MISCELLANEOUS (Material No. 19-003) made moist with CLEANING AGENTS (Material No. 11-026) to clean the fittings on the: - inboard end of the shroud box - the outboard end of the shroud box - forward face of the shroud box - attachment brackets on the fixed shroud - attachment brackets on the fuselage - the attachment bracket on the overwing panel.
 (2) Do an inspection of the component interface and/or the adjacent area.
 (3) Make sure that the seals on the shroud box are in good condition.
 (4) Make sure that the parts retained from the removed component are clean and in the correct condition.
 (5) Apply SEALANTS (Material No. 09-005) to the interface of the shroud box and the overwing panel.

R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 301-399,
 Subtask 57-51-15-420-053
 B. Installation of the Shroud Box
 (1) Carefully lift the shroud box into the correct position in the wing. Align all the attachment brackets with the related attachment brackets on the: - overwing panel
 -fixed shroud
 -fuselage.
 NOTE : The correct position of the shroud box on the aircraft is
____ controlled by the attachment points as follows:
 -
the position of the outboard end is controlled by the attachment brackets on the fixed shroud

 -
the forward and aft position is controlled by the bolt holes in the overwing panel

 -
the up/down position is controlled by the rods on the inboard end between the shroud box and the brackets on the fuselage. These rods are set and locked at aircraft build and must not be adjusted.

 (2)
 Support the shroud box.

 (3)
 At the outboard aft attachment bracket:

 (a)
 Align the hole in the outboard aft attachment bracket (91) (on the shroud box) with the hole in the bracket on the fixed shroud.

 (b)
 Install the floating bushes (90) into the outboard aft attachment bracket (91).

 (c)
 Install the bolt (92), the washer (93), the washer (89) and the nut (88).

 (d)
 Do not fully tighten the nut (88) at this stage.

 (4)
 At the outboard forward attachment bracket:

 (a)
 Align the slotted hole in the outboard forward attachment bracket

 (78) (on the shroud box) with the hole in the bracket on the fixed shroud.

 (b)
 Install the slider bushes (77) into the outboard forward
 attachment bracket (78).

 (c)
 Install the bolt (75), the washer (76), the washer (81) and the nut (79).

 (d)
 Do not fully tighten the nut (79) at this stage.

 (5)
 At the inboard aft attachment bracket:

 (a)
 Align the hole in the end of the rod (56) with the hole in the inboard aft attachment bracket (61). Do not adjust the length of the rod (56). The rod (56) is set and locked at aircraft build and must not be adjusted.

 (b)
 Install the floating bush (57) into the inboard aft attachment bracket (61).

 (c)
 Apply a thin layer of COMMON GREASE (Material No. 04-004) to the bolt (53).

 (d)
 Install the bolt (53), the washer (54), the washer(s) (58) and the nut (60).

 (e)
 Do not fully tighten the nut (60) at this stage.

 (6)
 At the inboard center attachment bracket:

 (a)
 Align the hole in the rod (47) with the hole in the inboard center attachment bracket (42). Do not adjust the length of the rod (47). The rod (47) is set and locked at aircraft build and must not be adjusted.
　
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