S 735-416
(9) Do this test of the fire signals from engine No. 1:
(a)
Set the portable tester to SUBFRAME 0, WORD 29.
(b)
Set and hold the FAULT/INOP--OVHT/FIRE switch in the OVHT/FIRE position.
(c)
Make sure the ENG #1 fire light is on.
(d)
Make sure the BIT 12 light on the portable tester is on.
(e)
Release the FAULT/INOP--OVHT/FIRE light.
(f)
Make sure the ENG #1 fire light goes out.
(g)
Make sure the BIT 12 light on the portable tester is off.
S 865-417
(10) Open this circuit breaker:
(a) P6-2 Panel
1) FIRE PROTECTION DETECTION ENG 1
S 865-418
(11) Close this circuit breaker:
(a) P6-2 Panel
1) FIRE PROTECTION DETECTION ENG 2
S 735-419
(12) Do this test of the fire signals from engine No. 2:
(a)
Set the portable tester to SUBFRAME 0, WORD 29.
(b)
Set and hold the FAULT/INOP--OVHT/FIRE switch in the OVHT/FIRE position.
(c)
Make sure the ENG #2 fire light is on.
(d)
Make sure the BIT 11 light on the portable tester is on.
(e)
Release the FAULT/INOP--OVHT/FIRE switch.
(f)
Make sure the ENG #2 fire light is off.
(g)
Make sure the BIT 11 light on the portable tester is off.
S 865-420
(13) Close these circuit breakers:
(a) P6-2 Panel
1) FIRE PROTECTION DETECTION APU
2) FIRE PROTECTION DETECTION ENG 1
3) OVHT WHL WELL WING BODY
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù.
BEJ 101-112, 114-999; ú 31-24-02
ú ú 15 Page 546 ú Mar 12/01
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 737-300/400/500MAINTENANCE MANUAL
S 865-421
(14) If you will do no more tests, then do this task:
"Put the Airplane to its Usual Condition."
TASK 31-24-02-735-635
38. Fuel Cutoff Signals Test
________________________
A. Access
(1) Location Zones
101 Control Cabin - Left
102 Control Cabin - Right
B. Procedure
S 865-424
(1)
Make sure you did the Prepare For Input Parameter Test task.
S 865-425
(2)
Open these circuit breakers:
(a) P6-2 Panel
1) ENG 1 R IGN
2) ENG 2 R IGN
3) ENG 2 L IGN
4) ENG 1 L IGN
S 865-428
(3)
Make sure pneumatic pressure is not available to the two engines.
S 865-427
(4)
Make sure the fire handles are in the NORMAL position.
S 735-426
(5)
Do this test of the fuel cutoff signals:
(a)
Set the portable tester to SUBFRAME 0, WORD 40.
(b)
Make sure the engine No. 1 start lever switch is in the CUTOFF position.
(c)
Make sure the BIT 2 light on the portable tester is on.
(d)
Put the engine No. 1 start lever switch in the START position.
(e)
Make sure the BIT 2 light on the portable tester is off.
(f)
Put the engine No. 1 start lever switch in the CUTOFF position.
(g)
Make sure the engine No. 2 start lever switch is in the CUTOFF position.
(h)
Make sure the BIT 1 light on the portable tester is on.
(i)
Put the engine No. 2 start lever switch in the START position.
(j)
Make sure the BIT 1 light on the portable tester is off.
(k)
Put the engine No. 2 start lever switch in the CUTOFF position.
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù.
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