(a) Install the flanged nuts (7) on the studs (8).
 (b) Adjust the flanged nuts (7) until the dimension Z is from 0.7 mm
 (0.0275 in.) to 0.8 mm (0.0314 in.).
 (c) Hold the flanged nuts (7) and install the nuts (6).
 (d) TORQUE the nuts (6) to between 2.26 and 2.40 m.daN (16.66 and
 17.69 lbf.ft).
 (e) Install the new cotter pin (5) then safety the nuts (6) and (7)
 with MISCELLANEOUS (Material No. 19-010).
 (8) Remove the support from the flap track beam (1).
 (9) Measure the dimension Z again. 
R  **ON A/C 301-399, 
R  Subtask 57-51-33-420-062-A 
R  C. Installation of the Flap Track Beam 
R  WARNING : USE SOLVENTS/CLEANING AGENTS, SEALANTS AND OTHER SPECIAL_______ 
R  MATERIALS ONLY WITH A GOOD SUPPLY OF AIR. 
R  OBEY THE MANUFACTURERS INSTRUCTIONS. 
R  PUT ON PROTECTIVE CLOTHING. 
R  DO NOT GET THEM IN YOUR MOUTH. 
R  DO NOT SMOKE. 
R  DO NOT BREATHE THE GAS. 
R  THESE MATERIALS ARE POISONOUS, FLAMMABLE AND SKIN IRRITANT. 
R  GET MEDICAL HELP IF YOUR SKIN OR EYES BECOME IRRITATED. 
R  WARNING : SUPPORT THE UNIT/ASSEMBLY OR IT WILL FALL AND BECOME DAMAGED OR_______ 
R  INJURE PERSONNEL. THE UNIT/ASSEMBLY IS HEAVY. 
R  NOTE : The weight of the flap track beam (1) is 33 kg (72.7525 lb).____ 
R  (1) Lift and hold the flap track beam (1). 
R  NOTE : Steps 2, 3 and 4 must be completed carefully and as one____ 
R  continuous procedure. Unsatisfactory work will result in 
R  damage to the spigot chrome protection and/or the top flange 
R  of the beam.

R  (2) Lift the rear end of the flap track beam (1). Engage the failsafe 
R  spigot (10) through the bush in the bottom skin plate. 
R  (3) At the rear mounting: 
R  (a) Apply SPECIAL MATERIALS (Material No. 05-002) to the aft spigot 
R  pin (17), but not to the thread. 
R  (b) Install the spherical washer (4). 
R  (c) Fill the space between the spherical washer (4) and the aft 
R  spigot pin (17), as shown, with SPECIAL MATERIALS (Material No. 
R  05-002). 
R  (d) Install the nut (3) on the aft spigot pin (17). 
R  (4) At the forward mounting: 
R  (a) Apply a thin layer of SPECIAL MATERIALS (Material No. 05-002) to 
R  the forward spigot pin (24). 
R  (b) Use the EXTRACTOR FLAP SPIGOT (98D57004037000) to install the 
R  forward spigot pin (24): 
R  - through the spherical bearing (19) 
R  - into the flap track beam (1). 
R  (c) Apply a thin layer of SPECIAL MATERIALS (Material No. 05-002) to 
R  the bolt (20). 
R  (d) Align the hole in the forward spigot pin (24) and install the 
R  bolt (20), the washer (29) and the nut (28). 
R  (e) TORQUE the nut (28) to between 0.35 and 0.4 m.daN (30.97 and 
R  35.39 lbf.in). 
R  (f) Install the new cotter pin (27). 
R  (5) At the rear mounting: 
R  (a) TORQUE the nut (3) to between 6.6 and 7.1 m.daN (48.67 and 52.35 
R  lbf.ft). 
R  (b) If the flap track beam has a new aft spigot pin (17) installed: 
R  - drill a 2.45 mm (0.0964 in.) hole in the aft spigot pin (17) 
R  for the cotter pin (2). 
R  (c) Install the new cotter pin (2).

 (9) Measure the dimension Z again.
 **ON A/C ALL

 5. Close-up
________ R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 401-499,
 Subtask 57-51-33-410-053
 A. Close Access
 (1)
 If necessary, install the No.4 flap track actuator (Ref. TASK 27-54-49-400-004).

 (2)
 Install the carriage on the applicable No.4 flap track beam (Ref. TASK 27-54-46-400-001).

 (3) Install the fairings of the No.4 flap track (Ref. TASK 57-55-11-400-001). 
R  **ON A/C 301-399, 
R  Subtask 57-51-33-410-053-A 
R  A. Close Access 
R R  (1) If necessary, install the No.4 flap track actuator (Ref. TASK 27-54-49-400-004). 
R R  (2) Install the carriage on the applicable No.4 flap track beam (Ref. TASK 27-54-46-400-001). 
R R  (3) Install the fairings of the No.4 flap track (Ref. TASK 57-55-11-400-004). 
　
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