Subtask 27-54-46-220-050-B
R C. Detailed Inspection of the Flap Carriage Rollers
 (1)
 Do an inspection of these items for corrosion, damage and the correct condition:

 -
the No. 1 flap carriage rollers (1) and (7)

 -
the Nos. 2 and 3 flap carriage rollers (14), (18), (24) and (28)

 -
the No. 4 flap carriage rollers (41), (18), (24) and (28).

 (2)
 Do an inspection of the flap carriage rollers (1), (7), (14), (18), (24), (28) and (41) for in-service wear:

 (a)
 Inspect the outer diameter (OD) of the roller outer case (43) for wear marks. You must replace the applicable roller(s) if the Dim 'Y' is more than 0.1 mm (0.0039 in.).

 (b)
 Hold the roller outer case (43) and move the inner case (44) from left to right. Measure the total lateral play (Dim 'X'). You must replace the applicable roller(s) if the total lateral play Dim 'X' is more than 0.13 mm (0.0051 in.).

 (c)
 Measure the OD of the roller(s) (Dim 'Z'). You must replace the applicable roller(s) if the Dim 'Z' is less than the applicable dimension shown in Table 1.

 -------------------------------------------------------------------------------| TRACK No. | MINIMUM BEARING OD (DIM 'Z') | |-----------------------------------------------------------------------------| | TRACK 1 | | |-----------------------------------------------------------------------------| | SIDE ROLLER (1) | 57.065 mm (2.247 in.) | | CENTER ROLLER (7) | 57.065 mm (2.247 in.) | |-----------------------------------------------------------------------------| | TRACK 2 | | |-----------------------------------------------------------------------------| R | TOP ROLLER (14),(28) | 38.070 mm (1.499 in.) | R | SIDE ROLLER (18) | 38.070 mm (1.499 in.) | | BOTTOM ROLLER (24) | 63.186 mm (2.488 in.) | |-----------------------------------------------------------------------------| | TRACK 3 | | |-----------------------------------------------------------------------------| R | TOP ROLLER (14),(28) | 38.070 mm (1.499 in.) | R | SIDE ROLLER (18) | 38.070 mm (1.499 in.) | | BOTTOM ROLLER (24) | 63.186 mm (2.487 in.) | |-----------------------------------------------------------------------------| | TRACK 4 | | -------------------------------------------------------------------------------| TRACK No. | MINIMUM BEARING OD (DIM 'Z') | |-----------------------------------------------------------------------------| |-----------------------------------------------------------------------------| R | TOP ROLLER (41),(28) | 33.312 mm (1.312 in.) | R | SIDE ROLLER (18) | 33.312 mm (1.312 in.) | R | BOTTOM ROLLER (24) | 44.412 mm (1.749 in.) | -------------------------------------------------------------------------------

TABLE 1
 Subtask 27-54-46-410-054-B
 D. Installation of Components After Inspection
 (1)
 For the No. 1 flap carriage side rollers:

 (a)
 Install the bolts (2) and the rollers (1) on the flap carriage (3).

 (b)
 Install the washers (11) and the nuts (10). TORQUE the nuts (10) to between 14.4 and 15.7 m.daN (106.19 and 115.78 lbf.ft).

 (c)
 Safety the nuts (10) with the new cotter pins (9).

 (2)
 For the No. 1 flap carriage center rollers:

 (a)
 Install the bolt assemblies (8), the rollers (7) and the spacers

 (6)
 on the flap carriage (3).

 (b)
 Install the washers (5) and the nuts (4). TORQUE the nuts (4) to between 14.4 and 15.7 m.daN (106.19 and 115.78 lbf.ft).

 (3)
 For the Nos. 2, 3 and 4 flap carriage side rollers:

 (a)
 Apply a layer of COMMON GREASE (Material No. 04-004) to the bolt assemblies (17) but not the threads.

 (b)
 Install the rollers (18), the bolt assemblies (17) and the nuts (19).

 (c)
 Make sure that the greasers on the bolt assemblies (17) point in the correct direction.

 (d)
 TORQUE the nuts (19) to between 3.5 and 4.8 m.daN (25.81 and

 35.39 lbf.ft).

 (7)
 For the Nos. 2, 3 and 4 flap carriage forward top rollers:

 (a)
 Apply a layer of COMMON GREASE (Material No. 04-004) to the pivot pin (27).

 (b)
 Install the roller (28) on the roller block assembly (29) with the pivot pin (27).

 (c)
 Apply a layer of COMMON GREASE (Material No. 04-004) to the hinge pin (25) but not the thread.

 (d)
 Install the roller block assembly (29) on the flap carriage (33).

 (e)
 Install the hinge pin (25), the washer (30) and the nut (31). Hand tighten the nut (31).
　
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