S 745-090-002
(5)
Do a check of the engine N2 tachometer input to the SMC:
(a)
Push the down button on each SMC.
(b)
Set the engine No. 1 N2 indicator to 0% (0 Hz) and the engine No. 2 N2 indicator to 0% (0 Hz).
(c)
Make sure that the N2 value on each SMC display is 0 |5%.
(d)
Set the engine No. 1 N2 indicator to 80% (1496 |1 Hz) and the engine No. 2 N2 indicator to 80% (1496 |1 Hz).
(e)
Make sure that the N2 value on each SMC display is 80 |5%.
(f)
Set the engine No. 1 N2 indicator to 0% (0 Hz) and the engine No. 2 N2 indicator to 0% (0 Hz).
S 085-091-002
(6)
Remove the stall warning system tester and the synthesizer/function generators.
S 425-092-002
(7)
Connect the electrical connector D546 to the N1 sensor and D552 to the N2 sensor on each engine.
S 415-093-002
(8)
Close the fan cowl panels on engines 1 and 2 (Ref 71-11-02/201).
N.
Engine Tachometer Inputs Test with DC Power Supplies
NOTE: If you use dc power supplies to do the Engine Tachometer Inputs
____ Test, do not do the section above, Engine Tachometer Inputs Test with Stall Warning System Tester.
S 485-039-002
(1)
Connect a dc power supply for the engine N1 signals:
(a)
Remove the EIS primary display panel (Ref 31-42-01/401).
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A 737-300/400/500MAINTENANCE MANUAL
(b) (c) (d) Connect a 0-5V dc power supply to the N1 indicator connectors D10092 pins 15 (+) and 16 (gnd) and D10094 pins 15 (+) and 16 (gnd).Connect 28V dc to connector D10092 pin 19 with a jumper.Connect 28V dc to connector D10094 pin 19 with a jumper.
S 745-041-002
(2) Do a check of the N1 tachometer input to the SMC: (a) Push the down button on each SMC. (b) Adjust the power supply to 0.17 |0.04V dc (this is the same as an N1 speed of 0%). (c) Make sure that the N1 value on each SMC display is 0 |5%. (d) Adjust the power supply to 3.27 |0.04V dc (this is the same as an N1 speed of 80%). (e) Make sure that the N1 value on each SMC display is 80 |5%. (f) Adjust the power supply to 0V dc.
S 085-042-002
(3) Disconnect the power supply and the jumpers.
S 485-045-002
(4) Connect the 0-5V dc power supply to the N2 indicator connectors D10096 pins 13 (+) and 14 (gnd) and D10098 pins 13 (+) and 14 (gnd).
S 745-047-002
(5) Do a check of the N2 tachometer input to the SMC: (a) Push the down button on each SMC. (b) Adjust the power supply to 0.17 |0.04V dc (this is the same as an N2 speed of 0%). (c) Make sure that the N2 value on each SMC display is 0 |5%. (d) Adjust the power supply to 3.27 |0.04V dc (this is the same as an N2 speed of 80%). (e) Make sure that the N2 value on each SMC display is 80 |5%. (f) Adjust the power supply to 0V dc.
S 485-048-002
(6) Disconnect the power supply.
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. AIRPLANES WITH STALL MANAGEMENT ú
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COMPUTER P/N 65-52822 ú CONFIG 2 ú 07 Page 514 ú Nov 15/94
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 737-300/400/500MAINTENANCE MANUAL
S 425-051-002
(7)
Install the EIS primary display panel (Ref 31-42-01/401).
O.
SMC - EFIS Interface Test
S 865-036-002
(1)
Move the flaps to the 1-unit position.
S 865-055-002
(2)
Set the IRS L and IRS R mode selector switches (aft P5 overhead panel) to the NAV position.
S 865-094-002
(3)
Set the IRS transfer switch (forward P5 overhead panel) to the NORMAL position.
S 865-095-002
(4)
Set the EFI transfer switch (forward P5 overhead panel) to the NORMAL position.
S 715-096-002 中国航空网 www.aero.cn 航空翻译 www.aviation.cn 本文链接地址：737-300 400 500 AMM 飞机维护手册 飞行操纵 FLIGHT CONTROLS 3(56)
