(4)  
Move the speed brake lever to the UP position to lift the spoilers.

 S 865-007

 (5)  
Move the flap control lever to the UP position to fully retract the flaps.

 S 865-008

 (6)  
Move the speed brake lever to the DOWN position to lower the spoilers.

 S 865-006
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
 S 865-009
 (7)  
Move the FLT CONTROL SPOILER system A and B switches to the OFF position.

 E.
Do the Adjustment of the Ground Spoilers

 S 225-010
 (1)  
Measure the clearance between the spoiler and the flap near the middle of the spoiler panel (Fig. 501):

 (a)  
Make sure the clearance is 0.03 +0.10/-0.00 inch.

 S 825-011
 (2)  
Adjust the spoiler if the clearance is not in the tolerance:

 (a)  
Make a record of the clearance between the spoiler and the flap.

 WARNING: DO NOT PUT A PART OF YOUR BODY BETWEEN THE SPOILER AND THE
_______ WING UNLESS YOU REMOVE THE HYDRAULIC POWER. THE SPOILERS CAN CAUSE INJURY TO PERSONS.
 (b)  
Lift the spoiler or extend the flaps to get access to the spoiler actuator: 1) Move the speed brake lever to the UP position to lift the

 spoilers. 2) Move the flap control lever to the 40-unit detent to extend the flaps. 3) Open the trailing edge access panel to get access to the spoiler actuator if you extended the flaps. 4) Remove the systems A and B hydraulic power (Ref 27-62-00/201).

 (c)  
Loosen the checknut on the piston rod end.

 (d)  
Disengage the locking key from the piston rod.

 CAUTION: DO NOT TURN THE PISTON ROD IF THE ACTUATOR IS PRESSURIZED.
_______
 YOU CAN CAUSE DAMAGE TO THE ACTUATOR.

 (e)  Turn the piston rod end to adjust the clearance between the spoiler and the flap.
 NOTE: Each 1/6 turn of the actuator piston rod will change the
____ clearance by approximately 0.045 inch.
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 737-300/400/500MAINTENANCE MANUAL

ACTUATOR PISTON ROD END

MEASURE THE CLEARANCE BETWEEN THE RUB STRIP AND THE MID FLAP AT THE NEAREST POINT
No. 0, 1, 8 and 9 Ground Spoiler Actuator Adjustment Figure 501
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 737-300/400/500MAINTENANCE MANUAL
 WARNING: DO NOT GET SOLVENTS IN YOUR MOUTH, OR YOUR EYES, OR ON
_______ YOUR SKIN. DO NOT BREATHE THE FUMES FROM MEK. PUT SOLVENTS ARE HAZARDOUS MATERIALS. SOLVENTS MAY BE FLAMMABLE OR HARMFUL TO THE ENVIRONMENT. REFER TO PRODUCT MATERIAL SAFETY DATA SHEETS (MSDS) AND LOCAL REQUIREMENTS FOR PROPER HANDLING PROCEDURES.
 (f)  
Clean all grease from the piston rod and the rod end threads with solvent, Series 88 (AMM 20-30-88/201).

 (g)  
Apply a layer of the corrosion preventive compound to the threads of the piston rod end.

 (h)  
Engage the locking key with the piston rod.

 (i)  
Tighten the checknut to 290-410 pound-inches.

 (j)  
Install the lockwire on the checknut and the locking key.

 (k)  
Apply a bead of sealant to the rod end checknut.

 (l)  
Supply the systems A and B hydraulic power (Ref 27-62-00/201).

 (m)  
Move the speed brake lever to the DOWN position to lower the spoilers if it is necessary.
　
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