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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
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737-300/400/500MAINTENANCE MANUAL
 (c)  
Make sure the FUEL VALVE CLOSED light for engine 1 on the P5 panel comes on bright while the valve is moving and dims to show the valve is fully closed.

 (d)  
Make sure the hydraulic system A fluid shutoff valve 1, V33, indicator at the valve moves to the closed position.

 (e)  
Make sure the hydraulic system A ENG 1 HYD LOW PRESSURE light on the P5 panel goes off.

 (f)  
Make sure the bleed air regulator solenoids for engine 1 closes.

 NOTE: You can hear or feel the solenoid click.
____
 S 865-074
 (13)
 Put the fire switch handle for engine 1 back to the fully closed position.

 S 865-075

 (14)
 Push the ERASE button on the M238 annunciator panel in the P6 well to set all lights.

 S 865-076

 (15)
 Push the override button behind the fire switch handle for engine 2 and pull the handle.

 S 865-077

 (16)
 Set the S2 switch on the M400 module to the B position.

 (a)  
Make sure the DC voltmeter shows zero volts.

 (b)  
Make sure the GEN 2 LV light on the M238 panel in the P6 well comes on.

 (c)  
Make sure the FUEL VALVE CLOSED light for engine 2 on the P5 panel comes on bright while the valve is moving and dims to show the valve is fully closed.

 (d)  
Make sure the hydraulic system B fluid shutoff valve 2, V34, indicator at the valve moves to the closed position.

 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

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737-300/400/500MAINTENANCE MANUAL
 (e)  Make sure the hydraulic system B ENG 2 HYD LOW PRESSURE light
 on the P5 panel goes off.
 (f)  Make sure the bleed air regulator solenoids for engine 2 and
 engine 2 closes.
 NOTE:____ You can hear or feel the solenoid click.

 S 865-078
 (17)
 Set the fire switch handle for engine 2 back to the correctly closed position.

 S 985-017

 (18)
 Push the ERASE button on the M238 annunciator panel in the P6 well to set all lights.

 S 865-079

 (19)
 Set the start levers in the CUTOFF position.

 S 865-080

 (20)
 Set the bleed air switches for engine 1 and 2 to the OFF position, if they are not necessary.

 NOTE:  The bleed air switches are usually in the ON position
____ when the airplane is parked.
 S 415-181
 (21)
 Close the thrust reverser (AMM 78-31-00/201).

 S 865-081

 (22)
 Close the fan cowl panels (AMM 71-11-02/201).

 S 865-082

 (23)
 Set the APU master switch to the ON position.

 (a)
Make sure the air inlet door for the APU opens.

 (b)
Make sure the fuel supply valve for the APU opens.

 NOTE:  The fuel supply valve for the APU is in the main wheel well on the left wing rear spar.
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
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737-300/400/500MAINTENANCE MANUAL
 S 865-083
 (24) Push the override button behind the fire switch handle for the APU and pull the handle.
 (a)  
Make sure the APU LV light on the M238 panel in the P6 well comes on.

 (b)  
Make sure the air inlet door for the APU closes.

 (c)  
Make sure the fuel supply valve for the APU closes.

 S 985-009
 (25)
 Set the APU master switch to the OFF position.

 S 865-084

 (26)
 Put the fire switch handle for the APU in the completly closed position.
　
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