S 435-026

 (7)  
Put the lockwire through the thumbnut.

 F. Put the airplane back to its initial condition.
 S 085-027
 (1)  Disconnect the VTVM.
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 S 085-028
 (2)  
Remove the test cable from the sensor connectors.

 S 485-015

 (3)  
Connect the sensor connectors to the airplane wire.

 S 085-008

 (4)  
Remove the test set power cables.

 S 415-009

 (5)  
Install the access panel on the tail cone.

 TASK 22-11-31-745-032
 3. Stabilizer Position Sensor Adjustment (DFCS BITE)
_____________________________________
 A. General
 (1)  The adjustment of the elevator position sensor is given as part of DFCS BITE, which uses the FMCS CDU.
 B. References
 (1)  
AMM 12-31-41/201, Access Doors and Panels

 (2)  
AMM 24-22-00/201, Electrical Power Control

 (3)  
AMM 27-41-00/501, Horizontal Stabilizer Trim Control System

 (4)  
AMM 29-15-00/201, Hydraulic Systems

 C. Access
 (1)  
Location Zone
 102 Control Cabin
 705 Tail Cone Access Panel

 (2)  
Access Panels
 3802 Tail Cone Access Door

 D. Prepare for DFCS BITE
 S 865-033
 (1)  
Supply electrical power (AMM 24-22-00/201, Electrical Power Control).

 S 865-034

 (2)  
Make sure that the BAT switch (pilots forward overhead panel) is in the ON position.

 (3)
Make sure that the STANDBY POWER switch is in the AUTO position.

 S 865-036

 (4)  
Put the MASTER DIM and TEST switch, on the pilots center instrument panel, to the TEST position.

 S 865-035
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737-300/400/500MAINTENANCE MANUAL
 S 865-038
 (5)  
Put the MASTER DIM and TEST switch, on the P1 panel, to the TEST position.

 S 865-039

 (6)  
Make sure all indicator lamps and annunciator lights on the pilots panel operate correctly.

 S 865-040

 (7)  
Make sure that the circuit breakers (on the P6 and P18 circuit breaker panels) for the systems shown below are closed and that the systems will operate.

 (a)  
FMCS

 (b)  
DADC (No. 1 and 2)

 (c)  
Interphone system

 (d)  
AFCS (A and B)

 NOTE: Make sure that you close the AFCS A FCC DC and AFCS B
____ FCC DC circuit breakers last.
 (e)  
Mach Trim

 (f)  
Yaw Damper

 S 865-041
 (8)
Make sure that the LANDING GEAR AIR/GND relay circuit breaker (on the P6 panel) is closed (relay must be in the GND position).

 S 865-043

 (9)  
Make sure all instrument switches are in the normal position.

 S 865-044
 WARNING: MAKE SURE THAT PERSONS AND EQUIPMENT ARE CLEAR OF ALL CONTROL
_______ SURFACES BEFORE YOU SUPPLY HYDRAULIC POWER. AILERONS, RUDDERS, ELEVATORS, FLAPS, SPOILERS, LANDING GEAR, AND THRUST REVERSERS CAN MOVE QUICKLY WHEN YOU SUPPLY HYDRAULIC POWER. THIS CAN CAUSE INJURY TO PERSONS OR DAMAGE TO EQUIPMENT.
 (10)
 Supply hydraulic power (AMM 29-15-00/201, Hydraulic Systems).

 S 015-046

 (11)
 Remove access panel 3802 on the tail cone (AMM 12-31-41/201, Access Doors and Panels) .

 E. DFCS BITE Test
 S 865-048
 (1)  Do the steps below to do the BITE test.
 (a)  Push the INIT/REF key on the FMCS CDU. Make sure that the CDU shows POS INIT page or PERF INIT page.
　
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