TASK 72-31-04-004-001-N00
2. Remove the 1st-Stage Stator___________________________
A. Special Tools and Equipment
(1)
Puller - Knocker - PWA85685 Pratt & Whitney,
East Hartford, Connecticut
B.
Standard Tools and Equipment
(1)
Mallet - Fiber
(2)
Protective Mat-Rubber Manufacturer's Association, Grade SC43 neoprene sponge, 1-inch thick, approximately 5x6 feet with warning streamer attached (3 required).
C.
References
(1)
AMM 72-31-01/401, Inlet Cone
(2)
AMM 72-31-02/401, 1st-Stage Fan Blade
(3)
AMM 72-31-03/401, Fan Exit Fairing
(4)
IPC 72-31-04 Fig. 1
D.
Access
(1)
Location Zone
412 Engine 1 - LPC
422 Engine 2 - LPC
432 Engine 3 - LPC
442 Engine 4 - LPC
E.
Procedure (Fig. 401)
S 494-009-N00
CAUTION: PUT COVERS ON ALL OF THE LOWER HALF OF THE INNER SURFACE OF THE
_______ INLET COWL. ALSO MAKE SURE THAT THE EDGES OF THE MATS TOUCH OR ARE ATTACHED WITH TAPE. IF THE EDGES DO NOT TOUCH, THEN THE TOOLS OR PARTS CAN FALL AND CAUSE DAMAGE TO THE INLET COWL SURFACE.
(1)
Put protective mats on the lower half of the inner surface of the inlet cowl.
(2)
Remove the inlet cone (AMM 72-31-01/401).
S 014-010-N00
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72-31-04
ALL ú ú N01 Page 401 ú Jun 18/00
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / PW4000 SERIES /747-400 / ENGINES /MAINTENANCE MANUAL ////////////////////////
INLET CONE
1ST-STAGE
(FAN) BLADE
SEE A FRONT FAN CASE
RUB STRIP
1ST-STAGE
WASHER STATOR
(100 PLACES) SEE B
FAN EXIT L-A0749
FAIRING FAN EXIT
GUIDE VANES
A
NUT
(50 PLACES)
BOLT
(50 PLACES)
STATOR 1ST-STAGE
B 0887 L-A0731
1st-Stage Stator Installation Figure 401
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72-31-04
ALL ú ú N01 Page 402 ú Jun 10/88
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
S 014-011-N00
(3)
Remove all of the 1st-stage fan blades (AMM 72-31-02/401).
S 494-012-N00
(4)
Install mats on the inner diameter of the fan case at the 6 o'clock position for protection of the rubstrip.
S 014-013-N00
(5)
With the PWA85685 Puller, remove the fan exit fairing (AMM 72-31-03/401).
S 034-014-N00
(6)
Remove the bolts, washers, and nuts from the outer flange of the 1st-stage stator.
S 024-015-N00
(7)
Use the fiber mallet to remove the 1st-stage stator from the engine.
TASK 72-31-04-404-005-N00
3. Install the 1st-Stage Stator
____________________________
A. Consumable Materials
(1)
D00390 Oil - Engine
B.
References
(1)
AMM 72-31-01/401, Inlet cone
(2)
AMM 72-31-02/401, 1st-Stage fan Blades
(3)
AMM 72-31-03/401, Fan Exit Fairing
(4)
IPC 72-31-04 Fig. 1
C.
Access
(1)
Location Zone
412 Engine 1 - LPC
422 Engine 2 - LPC
432 Engine 3 - LPC
442 Engine 4 - LPC
D.
Procedure (Fig. 401)
S 984-016-N00
(1)
Put the 1st-stage stator, with the offset holes at approximately the 3 and 9 o'clock positions, on the engine.
(2)
Lubricate the bolt threads with oil.
S 644-017-N00
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