GROUND SPOILER GROUND SPOILER ACTUATORS SUPPORT FITTING
A
BEARING
SPOILER HINGE
BONDING JUMPER
B
No. 4 and 5 Ground Spoiler Installation Figure 401
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 27-62-12
 ALL  ú ú 01 Page 402 ú Nov 15/91
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 737-300/400/500MAINTENANCE MANUAL
 S 024-011
 (10)
 Remove the ground spoiler:

 (a)  
Remove the two bolts that attach the pushrods to the ground spoiler.

 (b)  
Disconnect the bonding jumpers from the ground spoiler.

 (c)  
Remove the four hinge bolts.

 (d)  
Remove the ground spoiler from the airplane.

 (e)  
Remove the bearings from the four hinge fittings.

 TASK 27-62-12-404-012
 3.  No. 4 and 5 Ground Spoiler Installation (Fig. 401)
_______________________________________
 A.  Special Tools and Equipment
 (1)  
F80040-2 Spoiler Ground Lock

 B.  
Standard Tools and Equipment

 (1)  
Milliohmmeter - 0 to 0.1 ohm range

 C.  
References

 (1)  
AMM 24-22-00/201, Spoiler Position Sensor

 (2)  
AMM 27-62-00/201, Speed Brake Control System

 (3)  
AMM 27-62-12/501, No. 4 and 5 Ground Spoiler

 (4)  
AMM 27-62-12/601, No. 4 and 5 Ground Spoiler

 (5)  
AMM 51-21-97/701, Nonskid Finish

 D.  
Access

 (1)  
Location Zone 309, 409 Wing Trailing Edge Inboard Flap and Spoilers

 E.  
Procedure

 S 224-013
 (1)  
If you will install used parts, examine the parts for worn areas (AMM 27-62-12/601).

 S 984-030

 (2)  
If you will install a spoiler made of a different material than the spoiler you removed, you must change the airplane weight and balance data.

 S 424-014

 (3)  
Install the ground spoiler:

 (a)  
Install the bearings in the four ground spoiler hinge fittings.

 (b)  
Put the spoiler in its position on the airplane.

 (c)  
Install the four hinge bolts in the hinge fittings: 1) Install the two center hinge bolts with their heads outboard.

 2)  Install the inboard and outboard hinge bolts with their heads inboard.

 (d)  
Attach the two outer hinge bolts: 1) Install a washer and nut on each bolt.

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 27-62-12
 ALL  ú ú 02 Page 403 ú Jul 15/97
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 737-300/400/500MAINTENANCE MANUAL
 (e) (f)  2) Tighten the nuts to 50-70 pound-inches. 3) Install the cotter pins in the nuts.Attach the two center hinge bolts: 1) Install the washers and nut on each bolt. 2) Tighten the nuts to 630-950 pound-inches. 3) Install the cotter pins in the nuts.Connect the bonding jumpers to the ground spoiler: 1) Clean the mating surfaces for the bonding jumpers. 2) Attach the bonding jumpers to the lower part of the leading edge channel, near the inboard and outboard hinges. 3) If there is not a hole in the spoiler for the bonding jumper, drill a hole in the lower part of the spoiler. a) Drill the hole 8.15 inches from the end of the spoiler panel, 0.5 inch aft of the leading edge. 4) Use the milliohmmeter to make sure the resistance of the bonding jumper connection is less than 0.010 ohms.
 S 714-015
 (4)  Move the spoiler through its full travel. (a) Make sure the spoiler panel moves freely.
 S 434-016
 (5)  Install the bolt that attaches the rod end for the ground spoiler actuator to the spoiler: (a) Apply a layer of the BMS 3-24 grease to the bolt. (b) Install the bolts with their heads outboard. (c) Install the washers and nuts on the bolts. (d) Tighten the nuts to 290-410 pound-inches. (e) Apply the BMS 3-24 grease to the bolt, washer, and nut.
　
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