(f)
Make sure that the first officer's shaker started to operate at 0.7° - aero. offset |1.2°.
(g)
Set the left and right AOA sensors to zero.
(h)
Set the ALTERNATE FLAPS UP/OFF/DOWN switch to DOWN and let the TE flaps extend to the 10-unit position.
(i)
Set the ALTERNATE FLAPS arm switch to the OFF position.
S 865-032-001
(6)
Set the HYD PUMPS B ELEC 1 switch to ON.
S 865-033-001
(7)
Open these circuit breakers:
(a)
P6 Panel
1) AUTOSLAT 1 AC
2) AUTOSLAT NO. 1 DC
3) AUTOSLAT 2 AC
4) AUTOSLAT NO. 2 DC
5) STALL WARN DC
(b)
P18 Panel
1) STALL WARN ASYM MODE
2) STALL WARN DC
K.
High Thrust Mode Test with Stall Warning System Tester
NOTE: If you use the stall warning system tester to do the High Thrust
____ Mode Test, do not do the section below, High Thrust Mode Test with DC Power Supplies.
NOTE: The ac voltage to make the necessary N1 and N2 values is
____ 2.5 |1.0V RMS. You will change the frequency of this ac voltage
_________ to change the N1 and N2 values.
S 015-034-001
(1)
Open the engine 1 and 2 left and right fan cowl panels
(Ref 71-11-02/201).
S 425-035-001
(2)
Disconnect the electrical connector D546 from the N1 sensor and D552 from the N2 sensor on each engine.
S 485-036-001
(3)
Connect the stall warning system tester as given on the placard on the tester box top.
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. AIRPLANES WITH DIGITAL STALL WARNING ú
27-32-00
COMPUTER P/N 65-52819 ú CONFIG 1 ú 01 Page 510 ú Nov 15/96
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 737-300/400/500MAINTENANCE MANUAL
S 865-037-001
(4)
Close this circuit breaker:
(a)
P18 Panel
1) STALL WARN DC
S 865-038-001
(5)
Move the flap control lever to the 30-unit position and let the flaps extend.
S 715-039-001
(6)
Make sure that the stall warning system No. 1 operates in the high thrust mode:
(a)
Set the airspeed to 100 knots.
(b)
Adjust the tester to set the engine No. 1 N1 indicator to 80% (2070 |1 Hz).
(c)
Adjust the tester to set the engine No. 2 N2 indicator to 80% (1496 |1 Hz).
(d)
Turn the left AOA sensor counterclockwise (trailing edge up) until the captain's control column shaker operates.
(e)
Make sure that the shaker started to operate at 3.0 |1.0 degrees.
(f)
Turn the left AOA sensor clockwise to the range where the shaker stops.
CAUTION: MAKE SURE THAT YOU DECREASE THE FUNCTION GENERATOR VOLTAGE
_______ AND FREQUENCY TO ZERO AFTER EACH CHECK OF SHAKER OPERATION. THERE CAN BE INTERNAL DAMAGE TO THE TESTER IF YOU ACCIDENTALLY USE A FREQUENCY OVER 10,000 HZ.
(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. 1 N1 indicator to 120% (3105 |1 Hz).
(j)
Adjust the tester to set the engine No. 2 N2 indicator to 80% (1496 |1 Hz).
(k)
Turn the left AOA sensor counterclockwise until the captain's shaker operates.
(l)
Make sure that the shaker started to operate at 4.5 |0.7 degrees.
(m)
Turn the left AOA sensor clockwise to the range where the shaker stops.
(n)
Adjust the tester to set N1 and N2 to 0% (0 Hz).
S 865-040-001
(7)
Open this circuit breaker:
(a)
P18 Panel
1) STALL WARN DC
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. AIRPLANES WITH DIGITAL STALL WARNING ú 中國航空網 m.k6050.com 航空翻譯 www.aviation.cn 本文鏈接地址：737-300 400 500 AMM 飛機維護手冊 飛行操縱 FLIGHT CONTROLS 3(45)
