S 865-058
(15)
Move the test switch on the P8-1 panel to the FIRE/OVHT position.
(a) Make sure these fire handle lights come on:
1) ENG 1 OVERHEAT
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737-300/400/500MAINTENANCE MANUAL
2) ENG 2 OVERHEAT 3) the fire switch handle for engine 1 4) the fire switch handle for engine 2 5) the fire switch handle for the APU
S 865-059
(16)
Set the two OVHT DET switches in the B position.
S 865-060
(17)
Set the test switch on the P8-1 panel in the FIRE/OVHT position.
(a) Make sure these fire handle lights come on:
1) ENG 1 OVERHEAT
2) ENG 2 OVERHEAT
3) the fire switch handle for engine 1
4) the fire switch handle for engine 2
5) the fire switch handle for the APU
S 865-061
(18) Set the two OVHT DET switches in the NORMAL position.
G. Fire Switch Handle Test
S 865-062
(1)
Set the selector switch on the DC voltmeter on the P5 panel in the TEST position.
S 865-063
(2)
On the test module, M400, set the switches S1 and S2 to the 2 and A positions.
(a) Make sure the DC voltmeter shows 28 volts.
S 865-064
(3) Set the S2 switch on the M400 module to the B position.
(a) Make sure the DC voltmeter shows 28 volts.
S 865-065
(4) Set the S2 switch on the M400 module to the C position.
(a) Make sure the DC voltmeter shows 28 volts.
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S 755-066
(5) Make sure the start switches are in the OFF position.
S 015-016
(6) Open the fan cowl panels (AMM 71-11-02/201).
S 015-182
(7) Open the right hand thrust reverser half (AMM 78-31-00/201).
S 865-067
(8) Set the start levers to the IDLE position.
(a) Make sure the engine 1 and engine 2 FUEL VALVE CLOSED lights on
the P5 panel come on bright while the valves are in transit,
and then each go off to indicate the valves are fully open.
S 865-068
(9) Set the engine 1 and engine 2 bleed air switches in the ON position.
(a) Make sure the bleed air regulator solenoids for engine 1 and
engine 2 open.
NOTE:____ You can hear or feel the solenoid click.
(b)
Make sure the hydraulic system A and B fluid shutoff valves are open.
(c)
Make sure the low pressure lights for the engine hydraulics come on.
S 865-071
(10)
Push the ERASE button on the M238 annunciator panel in the P6 well to set all lights.
S 865-072
(11)
Push the override button behind the fire switch handle for engine 1 and pull the handle.
S 865-073
(12)
Set the S2 switch on the M400 module to the A position.
(a)
Make sure the DC voltmeter shows zero volts.
(b)
Make sure the GEN 1 LV light on the M238 panel in the P6 well comes on.
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