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75-31-00
ALL ú ú N01 Page 3 ú Feb 10/93
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.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)
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
75-31-00
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.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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