S 862-085-N00

 (12)
 If the APU was used for the air source during the start, put the APU VALVE switch to the off position.

 TASK 71-00-00-802-085-N00
 6.  Start the Engine (Normal Operation - Engine Bleed Air)______________________________________________________
 A. General
 (1)  
Look at the aft part of the nacelle during the start for signs of fuel leakage as shown in the Leakage Limits.

 B.
Access

 (1)  
Location Zone
 221 and 222 Control Cabin
 412 Engine 1
 422 Engine 2
 432 Engine 3
 442 Engine 4

 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
 71-00-00
 ALL  ú ú N03A Page 249 ú Feb 15/99
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / PW4000 SERIES /747-400 / ENGINES/MAINTENANCE MANUAL ////////////////////////
C. Procedure
 S 862-086-N00
 (1)  
Do the procedure with the Power Plant Operation Limits.

 S 862-087-N00

 (2)  
Make sure the engine is stable at idle.

 S 862-088-N00

 (3)  
Make sure you do the steps shown in the Prepare for the Engine Operation procedure, but replace the steps that follow:

 (a)  On the pilots' overhead panel, P5, make sure the components that follow are in the specified position: 1) APU VALVE switch - OFF 2) L and R ISLN VALVE switches - open if the cross start uses
 an engine from the opposite wing. 3) ENGINE BLEED switch for the engine in operation - ON
 S 862-089-N00
 (4)  
Increase the power on the engine in operation until the DUCT PRESS indication on the main EICAS display is a minimum of 30-40 psi.

 S 712-090-N00

 (5)  
Use the Start the Engine (Normal Operation - Air from an APU or Ground Cart) to continue the start procedure.

 (a)  Decrease the engine speed to idle on the engine you used for the cross start after the engine which is started operates at more than 50% N2 rpm.
 TASK 71-00-00-982-086-N00
 7. Manually Start the Engine
_________________________
 A. General
 (1)  
This task gives the steps to start an engine when the electrical circuit for the starter control valve does not operate.

 (2)  
Before you start the engine, you must make sure the cowlings are closed.

 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
 71-00-00
 ALL  ú ú N03A Page 250 ú Oct 15/98
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.

WARNING: ENTRY CORRIDOR MUST BE USED ONLY UNDER THE CONDITIONS LISTED BELOW:
1.
 THE ENGINE OPERATION MUST BE LESS THAN THE MINIMUM IDLE (FORWARD THRUST ONLY) WHILE PERSONS ARE IN THE ENTRY CORRIDOR.

2.  
IF THE WIND IS MORE THAN 25 KNOTS, INCREASE DISTANCE OF THE INLET BOUNDARY BY 20%. IF THERE IS SNOW, ICE, WATER, OIL OR OTHER CONTAMINATION ON THE RAMP, IT IS NECESSARY TO CLEAN THE RAMP.

3.
 THE PERSONS ON THE ENTRY CORRIDOR MUST TELL THE PERSONS IN THE CONTROL CABIN WHEN PROBLEMS OCCUR.

4.
 WHEN THE ENGINE IS OPERATED, THE PERSONS IN THE ENTRY CORRIDOR MUST NOT STAND IN THE INLET AND EXHAUST HAZARD AREAS.

5.
 ALL ENGINE COWLS CLOSED.

Engine Maintenance Entry Corridor-Cowling Closed
Figure 210

EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
 71-00-00
 ALL  ú ú N03A Page 251 ú Jun 10/93
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / PW4000 SERIES /747-400 / ENGINES/MAINTENANCE MANUAL ////////////////////////
B. Equipment
 (1)  
G71021-6, -11 Drive Extension - Starter Control Valve and PRSOV

 C.
Access

 (1)  
Location Zone
 221 and 222 Control Cabin
 412 Engine 1
　
中國航空網(wǎng) m.k6050.com
航空翻譯 www.aviation.cn
本文鏈接地址：747-400 AMM 飛機(jī)維護(hù)手冊(cè) 動(dòng)力裝置 POWER PLANT 1(31)