(b)  
Make sure that captain's control column shaker operates.

 (c)  
Release the switch.

 (d)  
Make sure that the shaker stops.

 S 715-015-001
 (2)  
Do a test of the stall warning system No. 2 operation:

 (a)  
Push and hold the STALL WARNING TEST NO. 2 switch on the stall warning test module.

 (b)  
Make sure that first officer's control column shaker operates.

 (c)  
Release the switch.

 (d)  
Make sure that the shaker stops.

 H.
System Performance Test

 S 865-093-001
 (1)  
Set the PITOT STATIC HEAT A and B switches on the P5 overhead panel to OFF.

 S 485-007-001

 (2)  
Connect the pitot pressure source to the digital air data computer number 1 and 2.

 (3)  
Set the altitude to 0.0 feet and the airspeed to 120 knots.

 S 865-094-001
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. AIRPLANES WITH DIGITAL STALL WARNING ú

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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 737-300/400/500MAINTENANCE MANUAL
 S 865-095-001

 WARNING:_______ LET THE ANGLE OF AIRFLOW SENSORS BECOME COOL AFTER YOU OPEN THE
 ALPHA VANE HEATER CIRCUIT BREAKERS.  THE SENSORS CAN BE
 SUFFICIENTLY HOT TO CAUSE BURNS TO YOUR BODY.

 (4)  
Open these circuit breakers:

 (a)  
P6 Panel 1) STALL WARN DC 2) LANDING GEAR AIR/GND RELAY & LTS

 (b)  
P18 Panel 1) STALL WARN DC

 S 865-099-001
 (5)  
Open these circuit breakers and install DO-NOT-CLOSE tags:

 (a)  
P18 Panel 1) L ALPHA VANE HTR 2) R ALPHA VANE HTR

 S 985-009-001
 (6)  
Slowly turn each angle of airflow (AOA) sensor between its stops (approximately 70°).

 (a)  
Make sure that only light torque is necessary to turn the sensor.

 (b)  
Make sure that there is no change in the torque.

 S 485-010-001
 (7)  
Attach a test calibrator on each AOA sensor.

 (a)  
Set each AOA sensor trailing edge down approximately 20 degrees from zero.

 S 865-096-001
 (8)  
Close this circuit breaker:

 (a)  
P6 Panel 1) STALL WARN DC

 S 715-012-001
 (9)  
Make sure that the right AOA sensor controls the first officer's control column shaker:

 (a)  
Turn the right AOA sensor slowly clockwise (trailing edge up) until the first officer's control column shaker operates.

 (b)  
Turn the sensor 10° farther than the point where the shaker started to operate.

 (c)  
Make sure that the shaker continues to operate.

 (d)  
Turn the right AOA sensor counterclockwise (trailing edge down) to the range where the shaker does not shake.

 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. AIRPLANES WITH DIGITAL STALL WARNING ú

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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
 S 865-097-001
 WARNING:_______ BEFORE YOU SUPPLY HYDRAULIC POWER, MAKE SURE THAT PERSONS AND
 EQUIPMENT ARE CLEAR OF FLIGHT CONTROL SURFACES, LANDING GEAR,
 AND THRUST REVERSERS.  SURFACES CAN AUTOMATICALLY MOVE WHEN YOU
 SUPPLY HYDRAULIC POWER.

 (10)
 Set the HYD PUMP B ELEC 1 switch on the P5 overhead panel to ON to supply hydraulic power (Ref 27-81-00/201).

 S 725-102-001

 (11)
 Make sure that the stall warning system No. 2 operates correctly at each flap position given in Table 501:

 (a)  
Move the flap control lever to the applicable position in Table 501 and let the flaps extend.

 NOTE: The right flap position transmitter supplies stall
　
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