(b)  
Close the shroud latches.

 S 412-011
 (8)  Close the APU cowl door:
 (a)  
Disconnect the door suppor rods.

 (b)  
Put the door support rods in the clips on the APU cowl door.

 (c)  
Close the APU cowl door.

 (d)  
Close the latches for the APU cowl door.

 S 862-012
 (9)  Set the circuit breaker and the switch:
 (a)  
Remove the DO-NOT-CLOSE tag and close this circuit breaker: 1) E3-3 Electrical Shelf, APU Control Unit

 (b)  
Remove the DO-NOT-CLOSE tag from the APU master switch on the P5 forward overhead panel.

 TASK 49-31-00-872-013
 3. High Pressure Bleed
___________________
 A. Standard Tools and Equipment
 (1)  
Container - for fuel, 2-gallon (8 liter) capacity

 (2)  
Fuel Drain Hose

 NOTE: The fuel drain hose must connect to the high pressure
____ fuel line from the fuel atomizer and drain into the container.
 B. References
 (1)  
AMM 24-22-00/201, Manual Control

 (2)  
AMM 49-11-00/201, APU Power Plant

 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 49-31-00
 ALL  ú ú 02 Page 204 ú Jul 12/01
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
C. Access
 (1)  
Location Zones
 101 Control Cabin (Left)
 205 Electronic Compartment
 215 Left Main Wheel Well
 703 APU Compartment

 (2)  
Access Panels
 1201 Electronic Equipment Access Door
 3804 APU Cowl Door

 D. Procedure
 S 862-014
 (1)  Set these switches and the circuit breaker:
 (a)  
Set the APU master switch, on the P5 forward overhead panel, to the OFF position and attach a DO-NOT-OPERATE tag.

 (b)  
Set the No. 1 AFT FUEL PUMP switch, on the P5 forward overhead panel, to the OFF position.

 (c)  
Open this circuit breaker and attach a DO-NOT-CLOSE tag: 1) E3-3 Electrical Shelf, APU Control Unit

 S 012-016
 (2)  Open the APU cowl door:
 (a)  
Open the latches for the APU cowl door.

 (b)  
Open the APU cowl door.

 (c)  
Connect the door support rods.

 S 012-017
 CAUTION:_______BE CAREFUL WHEN YOU MOVE THE LOWER SHROUD. DAMAGE TO THE SHROUD DRAIN LINES CAN OCCUR.
 (3)  
Remove the lower shroud:

 (a)  
Hold the lower shroud and open the shroud latches.

 (b)  
Remove the lower shroud.

 (4)  
Supply external electrical power to the airplane (AMM 24-22-00/201).

 S 912-018
 NOTE: The ac power is necessary to operate the aft boost pump
____
 in the No. 1 fuel tank.

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 49-31-00
 ALL  ú ú 01 Page 205 ú Mar 12/00
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / GTCP85-129 SERIES /737-300/400/500/ ENGINES/MAINTENANCE MANUAL ////////////////////////
S 872-020
 CAUTION: YOU MUST REFER TO THE APU OPERATION LIMITS WHEN YOU OPERATE THE
_______ APU. DAMAGE TO THE APU CAN OCCUR IF YOU DO NOT FOLLOW THE APU OPERATION LIMITS.
 (5)  Do the APU dry motoring (AMM 49-11-00/201) to bleed the air and preservative oil from the fuel control unit to the fuel atomizer.
 NOTE: If it is necessary, motor the APU engine more than one
____ time to remove the air and preservative oil from the fuel control unit and high-pressure fuel line.
 S 862-021
 (6)  
Make sure the APU master switch, on the P5 forward overhead panel, is in the OFF position and attach a DO-NOT-OPERATE tag.

 S 912-022

 (7)  
Remove the external electrical power from the airplane (AMM 24-22-00/201).

 S 412-023
 CAUTION: KEEP A MINIMUM CLEARANCE OF 0.18 INCHES (5 MM) BETWEEN THE
　
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