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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
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737-300/400/500MAINTENANCE MANUAL
 c)  If the clearance between the bushing faces AFT of the support beam is MORE than 0.020-inch, replace the defective bushings.
 NOTE: The defective bushings can possibly be on the
____ forward or aft side of the support beam.
 d)  If each clearance between the bushing faces forward or aft of the support beam, is LESS than 0.020-inch but the SUM of the two is MORE than 0.020-inch, washers must be installed until the SUM of the clearances is decreased to 0.020-inch or less.
 2) Apply a thin layer of grease to the outboard attach pin. 3) Install the outboard attach pin through the support fitting and the outboard end of the beam. 4) 737-300 OR 737-500; Install the lockbolt.
 NOTE: There may be interference between the lockbolt and
____ the trailing edge panel nutplates. If this condition occurs, the nutplate may be removed and replaced after reinstallation of the lockbolt, or the replacement lockbolt may be installed with the head down. Some 737-300/-500 airplanes may have been delivered with lock bolts that are 0.125 inch too long. Use the correct lockbolt which has a grip length of 2.125 inches.
 5) 737-300 AND 737-500; Tighten the nut on the lockbolt to 12-15 pound-inches. 6) Apply a layer of the corrosion preventive compound to the hole in the pin and the empty space behind the pin.
 (c)  
Attach the inboard flap and inboard track support fitting to the support beam.

 (d)  
Attach the inboard flap track to the support fitting.

 S 424-035-B00
 (2)  
737-300 AND 737-500; Install the swing link between the inboard end of the support beam and the fuselage as follows:

 (a)  
Install the washers and the shims that you removed.

 (b)  
Install the bolts and the nuts on the swing link.

 (c)  
Tighten the two aft bolts to 3500-4000 pound-inches.

 (d)  
Tighten the forward bolts to 130-180 pound-inches.

 

 (3)  
Install the flap transmission (AMM 27-51-71/401).

 (4)  
Install the flap angle gearbox (AMM 27-51-69/401).

 S 414-019-B00
 S 434-020-B00
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
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737-300/400/500MAINTENANCE MANUAL
 (5)  S 414-021-B00Install the flap torque tubes (AMM 27-51-64/401).
 (6)  S 864-022-B00Remove the supports from the support beam.
 (7)  S 434-023-B00Install the ground spoiler actuator (Ref 27-62-71/401).
 (8)  S 434-024-B00Attach all hydraulic tubes to the support beam.
 (9)  S 434-025-B00Attach all of the electrical wires to the support beam.
 S 434-026-B00

 (10)
 Attach the lower wing skin aft of the wheel well to the support beam.

 S 434-027-B00

 (11)
 Install the walking beam hanger (Fig. 401).

 (a)  Install the fitting of the walking beam hanger on the support beam (Fig. 401). 1) If a used support beam is installed, install the fitting
 with the shims, bolts, washers and the nuts.
 NOTE: Use the same shims that you removed during the
____ removal procedure.
 2) Do these steps if a new support beam is installed. a) Use a drill jig to drill holes for the support fitting assembly.
 b)  Install the fitting assembly.
 c)  Install the forward bolts, washers and the nuts.
 d)  Tighten the forward nuts.
 e)  Install shims between the fitting and the aft part of the beam.
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
 f)  737-300; 737-500; Make sure the clearance between the shims and the fitting is not more than 0.010 inch.
　
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