CAREFUL.
 (e) Attach a mounting device to the elevator trailing edge.
 1)  Put the dial indicator plunger on the top of the elevator tab, approximately 0.1 inch forward of the trailing edge and aft of the inboard hinge.
 2)  Adjust the dial indicator to zero.
 CAUTION: USE SUFFICIENT PADDING ON THE FORCE SCALE TO PREVENT
_______ DAMAGE TO THE CONTROL SURFACE.
 (f)  Use a force scale to push the top of the elevator tab with a force of 5 +/- 0.5 pounds.
 (g)  NOTE: Push this force aft of the inboard hinge, in 0.5 inch____ or less of the indicator plunger. 1) Make a record of the travel shown on the dial indicator. 2) Slowly remove the force.Push on the bottom surface of the elevator tab with a force of 5 +/- 0.5 pounds, directly below the force applied before.
 NOTE:____ Do not adjust the dial indicator.
 (h)  1) Make a record of the travel shown on the dial indicator. 2) Slowly remove the force.Make sure that the sum of the two travel records is not more than 0.036 inches.
 (i) (j) (k)  Remove the pressure from the elevator hydraulic systems A and B (AMM 27-31-00/201).Remove the dial indicator.Remove the mounting device.

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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
 (l)  
Remove the device that you used to cause a blockage.

 (m)  
Replace the nut in hinge number 1 with a new castellated nut and tighten to 50-80 pound-inches.

 (n)  
Install new cotter pin.

 (o)  
Repeat this test for the elevator tab on the other side.

 S 226-014
 (4)  
Do a check of the elevator tab freeplay (Fig. 604):

 (a)  
Pressurize the elevator hydraulic systems A and B
 (AMM 27-31-00/201).

 (b)  
Set the stabilizer at 3 +/- 0.5 units of trim.

 CAUTION: BE VERY CAREFUL WHEN YOU INSTALL A DEVICE TO CAUSE A
_______ BLOCKAGE OF THE ELEVATOR. THE ELEVATOR IS MADE OF COMPOSITE MATERIALS. THE DEVICE CAN CAUSE DAMAGE TO THE ELEVATOR IF YOU ARE NOT CAREFUL.
 (c)  Use a device that can cause a blockage of the elevator to prevent its motion during the check.
 NOTE: You can put a piece of wood between the elevator and the
____ airplane structure to prevent elevator movement.
 CAUTION:_______BE VERY CAREFUL WHEN YOU INSTALL THE MOUNTING DEVICE. THE ELEVATOR IS MADE OF COMPOSITE MATERIALS. THE MOUNTING DEVICE CAN CAUSE DAMAGE TO THE ELEVATOR IF YOU ARE NOT CAREFUL.
 (d)  Attach a mounting device to the elevator trailing edge.
 1)  Put the dial indicator plunger on the top of the elevator tab, approximately 0.1 inch forward of the trailing edge and aft of the inboard hinge.
 2)  Adjust the dial indicator to zero.
 CAUTION: USE SUFFICIENT PADDING ON THE FORCE SCALE TO PREVENT
_______
 DAMAGE TO THE CONTROL SURFACE.

 (e)  Use a force scale to push the top of the elevator tab with a force of 5 +/- 0.5 pounds.
 NOTE: Push this force aft of the inboard hinge, in 0.5 inch
____
 or less of the indicator plunger.

 1)  Make a record of the travel shown on the dial indicator.
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
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737-300/400/500MAINTENANCE MANUAL
 (f)  2) Slowly remove the force.Push on the bottom surface of the elevator tab with a force of 5 +/- 0.5 pounds, directly below the force applied before.
 NOTE: Do not adjust the dial indicator.____
 (g)  1) Make a record of the travel shown on the dial indicator. 2) Slowly remove the force.Make sure the sum of the two travel records is not more than 0.036 inch.
 (h) (i) (j) (k)  Remove the dial indicator.Remove the mounting device.Remove the device that you used to cause a blockage.Do these steps to make sure the axial play (inboard-outboard direction) of the tab is not more than 0.030 inch. 1) Hold the elevator tab around the trailing edge and move it outboard using hand pressure. 2) Use a feeler gage to measure the clearance between the elevator and the outboard end of the elevator tab and make
　
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