S 865-034
(6) Make sure that all of the instrument switching is in the NORMAL position.
S 865-035
WARNING: MAKE SURE THAT PERSONS AND EQUIPMENT ARE CLEAR OF ALL CONTROL
_______ SURFACES BEFORE YOU SUPPLY HYDRAULIC POWER. AILERONS , RUDDER ELEVATORS FLAPS, SLATS, SPOILERS, LANDING GEAR, AND THRUST REVERSERS CAN MOVE QUICKLY WHEN YOU SUPPLY HYDRAULIC POWER. THIS CAN CAUSE INJURY TO PERSONS OR DAMAGE TO EQUIPMENT.
(7)
Supply hydraulic power (Ref 29-15-00/201, Hydraulic Systems).
S 865-036
(8)
Make sure the ground sensing light is off, to show the airplane is in the ground mode. The light is red, and can be found on the E11 shelf, forward of the nose wheel well.
S 865-037
(9)
Make sure the indicated airspeed (IAS) is less than 50 knots.
S 865-038
(10)
Put the speed brake lever in the OFF position.
(11)
Put the pilots control wheel in the center.
S 825-039
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737-300/400/500MAINTENANCE MANUAL
E. Sensor Adjustment
NOTE: DFCS BITE is done with FMCS CDU.
____
S 865-040
(1)
Push the INIT/REF key on the FMCS CDU. Make sure that the CDU shows the POS INIT page or PERF INIT page.
S 865-041
(2)
Push the line-select key (LSK) adjacent to (<INDEX) and make sure that the CDU shows the INIT REF INDEX 1/1.
S 865-042
(3)
Push the LSK adjacent to (MAINT>) and make sure that the CDU shows the MAINT BITE INDEX 1/1.
S 865-043
(4)
Push the LSK adjacent to (<DFCS) and make sure that the CDU shows DFCS BITE TEST 1/2.
S 865-044
(5)
Push the NEXT PAGE key and make sure that the CDU shows DFCS BITE TEST 2/2.
S 865-045
(6)
Push the LSK adjacent to (<SENSOR VALUES) to select the Sensor Values Tests.
(7)
Push the LSK adjacent to (<ANALOG SIGNALS).
S 865-047
(8)
Push the LSK adjacent to (<CONTINUE) until test 56.11 (spoiler No. 2 position) is shown on the CDU.
S 865-046
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737-300/400/500MAINTENANCE MANUAL
S 865-048
(9)
Lower the flaps to get access to the sensor.
S 025-049
(10)
Loosen the mounting screws on the sensor to make sure the sensor can be turned.
S 825-050
(11)
Turn the sensor housing slowly until you get a value less than 100 millivolts.
S 425-051
(12)
Tighten the sensor mounting screws 8-12 lb-inches.
S 865-052
(13)
Slowly move the speed brake lever aft and monitor the CDU carefully while the spoilers start to move up.
S 825-054
(14)
If the value on the CDU decreases toward zero before it increases, do these steps:
(a)
Return the speedbrake lever to the OFF position.
(b)
Do steps (9) thru (13) again.
S 025-055
(15)
Remove the lockwire from the thumb nut on the microadjustment rod.
S 825-056
(16)
Turn the thumb nut until you get the smallest value less than 60 millivolts. Install the lockwire.
NOTE: If you do not get the null with the microadjustment rod, adjust the rod length to 3.54 inches, and do the last two steps again.
S 865-057
(17)
Push the LSK adjacent to (<CONTINUE) until test 56.12 (spoiler No. 7 position) is shown on the CDU.
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