(a)  
Make sure all of the control surfaces are clear.

 (b)  
Supply hydraulic pressure (AMM 29-15-00/201).

 (c)  
Make sure that the fuel in each tank is 1675 lbs. (750 kgs).

 (d)  
Make sure the parking brake is on.

 (e)  
Make sure ELEC 2 HYD PUMP A is on.

 (f)  
Make sure that the FLT CONT A switch is in the ON position.

 (g)  
Make sure SPOILER A and B switches are in the ON position.

 (3)
Push the LSK adjacent to (<CONTINUE) to show DFCS BITE TEST 51.01.

 S 865-050
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 S 825-051
 (4)  Do the instruction below as shown on the CDU:
 (a)  Set the horizontal stabilizer at 3 units of trim equal to the jackscrew "B" dimension of 41.57 |0.05 inches (AMM 27-41-00/501).
 NOTE: One person must be in the tail with a headset and the
____
 other person in the control cabin.

 S 865-052
 (5)  Push the LSK adjacent to (<CONTINUE) to show ELEV RIG 51.02.
 NOTE: BITE starts the mach trim actuator to move the unit to the
____ EXTEND position. After a short time the position will be shown on the CDU.
 S 865-053
 (6)  
Move the control column, as shown on the CDU.

 S 865-078

 (7)  
Push the LSK adjacent to (<CONTINUE) to show ELEV RIG 51.03.

 NOTE: Use this display to make sure the mechanical offset of the
____ elevator at the stabilizer 3.0 units rig position is correct. The absolute elevator +4° position is the autopilot +2° position.
 S 825-079
 (8)  Adjust the elevator position sensor
 (a)  
Make sure the trailing edge of the right elevator is in line with the tail cone index |0.06 inches.

 (b)  
Loosen the screw on the sensor clamp until you can turn the sensor.

 (c)  
Turn the sensor case slowly until the CDU shows -0.48 |0.05 volts.

 (d)  
Tighten the clamp screw to 8 to 12 pound-inches.

 (e)  
Remove the lockwire and turn the thumbnut on the microadjustment rod until you get a value of -0.48 |0.03 volts.

 (f)  
Put the lockwire through the thumbnut on the microadjustment rod.

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737-300/400/500MAINTENANCE MANUAL
 S 865-054
 (9)  
Make sure the sensor adjustment is correct while you continue the DFCS BITE TEST - ELEVATOR RIGGING through page 51.14.

 S 865-055

 (10)
 Push the INIT REF key on the CDU to get out of BITE.

 S 415-056

 (11)
 Install the access panel on the tail cone.

 TASK 22-11-30-745-057
 4.  Elevator Position Sensor Test (BITE TEST)_____________________________
 A. Access
 (1)  Location Zone
 102 Control Cabin

 B. DFCS BITE test.
 S 865-060
 (1)  
Push the LSK adjacent to (<LRU INTERFACE).

 S 865-058

 (2)  
Push the LSK adjacent to (<CHANNEL A and B).

 S 865-059

 (3)  
Push the LSK adjacent to (<LRU INTERFACE TESTS 2/2).

 S 865-061

 (4)  
Push the CDU NEXT PAGE key

 S 865-062

 (5)  
Push the LSK adjacent to (<ACT POS SENS).

 S 865-063

 (6)  
Make sure that BITE completes the sensor tests and that ELEV POS test are done without an indication of failure.

 TASK 22-11-30-715-064
 5.  Elevator Actuator/Position Sensor - Manual Test_________________________________
 A. References
 (1)  
AMM 12-31-41/201, Access Doors and Panels
　
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