S 582-005

 (4)  
If the plumb bob is not in the zero position on the leveling scale, make the airplane level.

 WARNING: DO NOT PRESSURIZE THE SHOCK STRUTS TO MORE THAN USUAL
_______ SERVICING PRESSURE. IF YOU DO, INJURY TO PERSONS AND DAMAGE TO SHOCK STRUTS CAN OCCUR.
 (a)  For small adjustments, extend or retract the main and nose landing gear shock struts to usual service band limits (Ref 12-15-31, 12-15-41).
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A 737-300/400/500MAINTENANCE MANUAL

PLUMB BOB MUST BE CLEAR AND SHOULD BE WITHIN 1/8 INCH OF TARGET
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A 737-300/400/500MAINTENANCE MANUAL
 CAUTION:_______ALL OF THE JACKS MUST HAVE PRESSURE GAGES. DO NOT USE MORE PRESSURE THAN THE LIMITS PERMIT. DAMAGE TO EQUIPMENT CAN OCCUR.
 (b)  For large adjustments, do these steps: 1) Put applicable jack pad adapters and jacks at jacking points A, B, and C (Ref 07-11-11).
 2)  Lift or lower the jacks until the plumb bob is at the zero position on the leveling scale.
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A
737-300/400/500MAINTENANCE MANUAL
 LEVEL AIRPLANE USING ATTITUDE GAGE
__________________________________
 1.  General
_______
 A.  This procedure contains a task to use an attitude gage to make the airplane level.
 TASK 08-12-00-582-001
 2.  Make the Airplane Level (Fig. 201)
_______________________
 A.  Standard Tools and Equipment
 (1)  Airplane Attitude Gage - F70043
 B.  References
 (1)  
07-11-11/201, Jack Airplane

 (2)  
12-15-31/301, Main Landing Gear Shock Strut

 (3)  
12-15-41/301, Nose Landing Gear Shock Strut

 C.  Access
 (1)  Location Zones
 410 Main Landing Gear (Right)

 D.  Procedure
 S 582-002
 (1)  
Park the airplane in the most level position available.

 S 482-003

 (2)  
Put the alignment tube tips of the attitude gage against the ceiling in the main wheel well.

 S 482-004

 (3)  
Put the gage parallel to the airplane centerline to see if the airplane is level about the longitudinal axis.

 NOTE: Make sure the alignment tube tips are on a flat surface of
____
 the wheel well ceiling.

 S 822-005
 (4)  Set the screw adjuster on top of the attitude gage until the pointer is on zero.
 NOTE: If the bubble is not in the center of the vial, you must lift
____ or lower the airplane as it is necessary. The bubble will move to the high end of the airplane.
 S 582-006
 (5)  Do these steps to make the airplane level about its longitudinal axis:
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A
737-300/400/500MAINTENANCE MANUAL
WHEEL WELL CEILING
ALIGNMENT TUBE 
FWD 
ALIGNMENT TUBE  SCREW ADJUSTER  SEE  B 
LEVEL VIAL ASSEMBLY SEE A  4 LOW 3 
GAGE ATTITUDE  2 1 
0 
　
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