32-21-00
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
 (2)  
Spring scale - 0- to 50-pound capacity

 (3)  
Nose Gear Steering Actuator Rod Clamp - F80162-1

 B.
Standard Tools and Equipment

 (1)  
Wood 2 x 6 - Approximately 7 feet long

 (2)  
Sturdy box or platform - Approximately 15 inches high with suitable mounting for dial indicator gage

 (3)  
Axle jack

 (4)  
Feeler Gage

 C.
References

 (1)  
AMM 07-11-21/201, Jack Airplane

 (2)  
AMM 12-15-41/301, Shock Strut Servicing - Nose Landing Gear

 (3)  
AMM 29-15-00/201, Hydraulic Systems A and B

 (4)  
AMM 32-21-00/401, Nose Landing Gear

30 POUNDS
WOODEN 2 X 6

WHEEL
DIAL INDICATOR GAGE

1

1
POSITION GAGE IN FORE
AND AFT DIRECTION
Nose Landing Gear Torsional Free Play Inspection Figure 601
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 32-21-00
 ALL  ú ú 01 Page 603 ú Nov 15/97
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
 (5)  
AMM 32-21-31/801, Nose Landing Gear Torsion Links

 (6)  
AMM 32-51-51/401, Steering Cylinder

 (7)  
AMM 32-51-61/401, Steering Collar

 D.
Prepare to Examine the Torsional Free Play

 S 866-018
 (1)  
Remove the pressure from the hydraulic systems A and B
 (AMM 29-15-00/201).

 S 866-019

 (2)  
Lift the nose of airplane with jacks until the shock strut is fully extended (AMM 07-11-21/201).

 S 026-020
 WARNING: MAKE SURE YOU DEFLATE THE SHOCK STRUT COMPLETELY BEFORE YOU
_______ LOOSEN THE VALVE BODY. THE AIR PRESSURE CAN BLOW THE VALVE BODY OUT WHICH CAN CAUSE INJURY TO PERSONS.
 (3)  Slowly open the air valve at the top of the shock strut and deflate the shock strut.
 NOTE: The fluid in the shock strut will immediately start to
____ bubble when you decrease the pressure to ambient. Deflate the shock strut slowly to prevent the fluid from leaking out of the air valve.
 S 866-021
 (4)  
Lift the inner cylinder of the nose landing gear with the axle jack until approximately 4 inches of the chrome surface on the inner cylinder remains.

 S 436-022

 (5)  
Install the actuator rod clamps on the two actuator rods of the steering cylinders for nose landing gear.

 (a)  
Set the clamps tightly against the actuator end plates to prevent all movement of the actuator rod.

 S 486-046
 (6)  Set the dial indicator gage on the platform to read the front and the aft motion of the right wheel rim.
 NOTE: The gage must be installed on the forward side of the wheel
____ on the axle centerline as near to the outboard edge of the rim as possible.
 S 496-023
 (7)  Put in the wood 2 x 6 between the wheels.
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 32-21-00
 ALL  ú ú 02 Page 604 ú Jul 15/98
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
 E. Procedure to Examine the Torsional Free Play
 S 866-024
 (1)  
With the help of a spring scale, apply a clockwise pull of 30 pounds on the wood 2 x 6 at a 60-inch arm measured from the shock strut centerline.

 (a)  
Set the dial indicator gage to "0" then loosen the load.

 S 866-025
 (2)
Apply a counterclockwise pull on wooden 2 x 6 as in step E.(1).

 (a)  
Write the value on the dial indicator and loosen the load.

 S 866-026
 (3)  
Do the steps E.(1) and E.(2) for a total of five cycles.

 S 976-028

 (4)  
　
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