27-32-00
 COMPUTER P/N 65-52819  ú CONFIG 1 ú 02 Page 511 ú Nov 15/96
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
 S 865-041-001
 (8)  
Close this circuit breaker:

 (a)  
P6 Panel
 1) STALL WARN DC

 S 715-042-001
 (9)  
Make sure that the stall warning system No. 2 operates in high thrust mode:

 (a)  
Set the airspeed to 100 knots.

 (b)  
Adjust the tester to set the engine No. 2 N1 indicator to 80% (2070 |1 Hz).

 (c)  
Adjust the tester to set the engine No. 1 N2 indicator to 80% (1496 |1 Hz).

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

 (e)  
Make sure that the shaker started to operate at 3.0 |1.0 degrees.

 (f)  
Turn the right AOA sensor counterclockwise to the range where the shaker stops.

 (g)  
Adjust the tester to set N1 and N2 to 0% (0 Hz).

 (h)  
Increase the airspeed to 120 knots.

 (i)  
Adjust the tester to set the engine No. 2 N1 indicator to 120% (3105 |1 Hz).

 (j)  
Adjust the tester to set the engine No. 1 N2 indicator to 80% (1496 |1 Hz).

 (k)  
Turn the right AOA sensor clockwise until the first officer's shaker operates.

 (l)  
Make sure that the shaker started to operate at 4.5 |0.7 degrees.

 (m)  
Turn the right AOA sensor counterclockwise to the range where the shaker stops.

 (n)  
Adjust the tester to set N1 and N2 to 0% (0 Hz).

 S 865-043-001
 (10)
 Open this circuit breaker:

 (a)  
P6 Panel
 1) STALL WARN DC

 (11)
 Set the left and right AOA sensors to 0.0 degrees.

 S 085-045-001

 (12)
 Disconnect the stall warning system tester and the function generators.

 S 425-046-001

 (13)
 Connect the electrical connectors D546 to the N1 sensor and D552 to the N2 sensor on each engine.

 S 865-044-001
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. AIRPLANES WITH DIGITAL STALL WARNING ú

 27-32-00
 COMPUTER P/N 65-52819  ú CONFIG 1 ú 02 Page 512 ú Nov 15/96
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
 S 415-047-001
 (14)
 Close the engine 1 and 2 left and right fan cowl panels
 (Ref 71-11-02/201).

 L.
High Thrust Mode Test with DC Power Supplies

 NOTE: If you use dc power supplies to do the High Thrust Mode Test, do
____ not do the section above, High Thrust Mode Test with Stall Warning System Tester.
 S 485-049-001
 (1)  
AIRPLANES WITHOUT EIS; Connect two dc power supplies for the engine N1 and N2 signals:

 (a)  
Remove the engine 1 and engine 2 N1 and N2 tachometer indicators (Ref 77-12-02/401).

 (b)  
Connect one 0-5V dc power supply at the engine 1 N1 indicator connector D542 pins 17 (+) and 18 (gnd).

 (c)  
Connect one more 0-5V dc power supply at the engine 2 N2 indicator connector D550 pins 13 (+) and 14 (gnd).

 (d)  
Connect a jumper between pins 3 and 25 of D542.

 S 485-051-001
 (2)  
AIRPLANES WITH EIS; Connect two dc power supplies for the engine N1 and N2 signals:

 (a)  
Remove the EIS primary display panel (Ref 31-42-01/401).

 (b)  
Connect one 0-5V dc power supply at the engine 1 N1 indicator connector D10092 pins 15 (+) and 16 (gnd).

 (c)  
Connect one more 0-5V dc power supply at the engine 2 N2 indicator connector D10098 pins 13 (+) and 14 (gnd).

 (d)  
Connect 28V dc to the connector D10092 pin 19 with a jumper.

 S 865-052-001
 (3)  
Close this circuit breaker:

 (a)  
P18 Panel
 1) STALL WARN DC

 S 865-053-001
 (4)  
Move the flap control lever to the 30-unit position and let the flaps extend.

 S 715-054-001
　
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