747-400 AMM 飞机维护手册 大气 AIR 2(21)

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 that follow will be in the central maintenance computer system
 (CMCS) depending on the area of actuator failure: ENG-# SVA TORQUE
 MOTOR WIRING/SVA FAIL (CH-X), ENG-# SVA UNIT FAIL (CH-X), and ENG-#
 SVA LVDT WIRING/SVA FAIL (CH-X).
 NOTE: "ENG-#" is engine 1, 2, 3, or 4; "CH-X" is channel A or____
 channel B of the EEC.

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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
COMPRESSOR STATOR VANE CONTROL SYSTEM - ADJUSTMENT/TEST
_______________________________________________________
 1.  General
_______
 A.  This procedure gives four tasks to adjust the control system for the compressor stator vanes. The four tasks include two mechanical procedures and two hydraulic procedures. The four procedures are as follows:
 (1)  
Compressor Stator Vane Control System Adjustment (Hydraulic Procedure).

 (2)  
Compressor Stator Vane Control System Adjustment (Mechanical Procedure).

 (3)  
Variable Stator Vane Actuator Adjustment (Hydraulic Procedure).

 (4)  
Variable Stator Vane Actuator Adjustment (Mechanical Procedure).

 B.  
The adjustment for the compressor stator system will do the rigging of the unison rings and the actuator for the stator vanes.

 C.  
The adjustment of the variable stator vane will do the rigging the actuator for the stator vanes.

 D.  
If the unison ring linkage is adjusted, you must also adjust the actuator for the variable stator vane.

 E.  
The unison ring linkage and the actuator are installed on the right forward case of the high pressure compressor (HPC).

 F.  
You can get access to the unison ring linkage and the actuator through the right thrust reverser.

 G.  
ENGINES WITH PW SPECIAL INSTRUCTION (SI) 17F-93; You cannot rig the IGV stage with this procedure. All adjustments for the 5th- thru 7th-stage are correct as written. Also, the rig pin will not fit in the IGV stage rig hole. Make sure you rig the IGV stage with the instructions in the PW SI 17F-93.

 TASK 75-31-00-825-126-N00
 2.  Compressor Stator Vane Control System Adjustment (Hydraulic Procedure)
________________________________________________
 A.  Special Tools and Equipment
 (1)  
PWA 29451 Adapter - Pratt & Whitney, Commercial
 Products Division, 400 Main
 Street, East Hartfold,
 Connecticut 06108

 (2)  
PWA 85394 Pin - Rig, Pratt & Whitney (optional
 to the PWA 86197)

 (3)  
PWA 86097 Pin - Rig, Pratt & Whitney

 (4)  
PWA 85393 Pin - Rig, Pratt & Whitney (3 are
 necessary)

 

 NOTE: The PWA 85675 Rigging Pin Kit contains
____
 the above rig pins.

 (5)  PWA 49030 Cart - Hydraulic (Pneumatic), Pratt &
 Whitney (Optional to CTE5100)

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 ALL  ú ú N02 Page 501 ú Jun 18/99
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / PW4000 SERIES /747-400 / ENGINES /MAINTENANCE MANUAL ////////////////////////
INTERMEDIATE CASE 
UNISON RING 
DRIVE LINKAGE 
SEE  A  FWD 
BELLCRANK 
VARIABLE STATOR 
VANE ACTUATOR 
PWA 86317,  SEE  B  C 
ELECTRICAL SWITCH BOX  EXTEND/RETRACT ACTUATION SWITCH  A 
COMPRESSOR 
STATOR 
ACTUATOR ROD  ACTUATOR 
J7 ELECTRICAL 
RECEPTACLE 
CONNECTOR 
POWER SWITCH  J3 ELECTRICAL 
ON/OFF  110 VOLT  RECEPTACLE 
60 HERTZ 
POWER  W5P7 HARNESS 
CONNECTOR 
W4P3 HARNESS 
CONNECTOR 
ELECTRICAL SWITCH BOX 
B  L-A6529 0690 
Test Equipment Installation 
　
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