747-400 AMM 飞机维护手册发动机 ENGINE 1(184)_航空信息_民用航空_通用航空

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C. To remove the front fan case, you must remove the inlet cowl, the inlet cone, the fan blades, the Electronic Engine Control (EEC), and the Supplemental Control Unit (SCU).
TASK 72-33-01-004-001-N00
2. Remove the Front Fan Case
_________________________
A. Special Tools and Equipment
(1)
PWA 85677 - Handling Bracket, Pratt & Whitney, Commercial Products Division, 400 Main Street, East Hartford, CT 06108

B.
Standard Tools and Equipment

(1)
Hoist - Code 2504, 1 ton capacity, 28 foot lift, standard hand chain with safty hooks, C & M Hoist Division Columbus McKinnon Corp., Tonawanda, NY 14150, or equivalent

(2)
Mallet - Fiber, for front fan case removal

C.
References

(1)
AMM 71-11-01/401, Inlet Cowl

(2)
AMM 71-11-04/201, Fan Cowl Panels

(3)
AMM 72-31-02/401, 1st-Stage (Fan) Blade

(4)
AMM 73-21-04/401, Electronic Engine Control (EEC)

(5)
AMM 73-21-15/401, Supplemental Control Unit (SCU)

(6)
AMM 77-31-01/401, Engine Accelerometer

(7)
AIPC 71-00-50 Fig. 1, AIPC 71-53-00 Fig. 3, AIPC 72-33-51 Fig. 5, AIPC 72-33-52 Fig. 5, AIPC 73-21-40 Fig. 1, AIPC 73-21-40 Fig. 4, AIPC 77-31-55 Fig. 1

D.
Access

(1)
Location Zone
412 Engine 1 - Front Fan Case
422 Engine 2 - Front Fan Case
432 Engine 3 - Front Fan Case
442 Engine 4 - Front Fan Case

(2)
Access Panel
413 and 414 Fan Cowl Panels - Engine 1
423 and 424 Fan Cowl Panels - Engine 2
433 and 434 Fan Cowl Panels - Engine 3
443 and 444 Fan Cowl Panels - Engine 4

E.
Fan Case Wiring, Tube, and Hose Removal (Fig. 401).

(1)
Open the fan cowl panels (AMM 71-11-04/201).

S 014-002-N00
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72-33-01
ALL ú ú N02 Page 401 ú Feb 15/99
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / PW4000 SERIES /747-400 / ENGINES /MAINTENANCE MANUAL ////////////////////////
FLANGE B
3. EEC PAMB FLEX
FLANGE B1 HOSE (UPPER) FLANGE A1
10.
BRACKET

11.
BRACKET

4
SEE A SEE B 11A. BRACKET SEE M 10A. BRACKET SEE O
FLANGE A

7. EEC PAMB MANIFOLD 12. BRACKET
SEE L
48. BRACKET 3 FLEX HOSE
9. EEC PAMB SEE G
(LOWER)
39. BRACKET FLEX HOSE
8. EEC PT2 SEE F
1
13. BRACKET13. BRACKET SEE HSEE D
40. EEC PAMB FLEX HOSE
13. BRACKET (FRONT)
9. EEC PAMB SEE K TEE HOSEFLEX HOSE 41. BRACKETNUT
14. BRACKET39. BRACKET
47. BRACKET SEE I
SEE F SEE E
A
46. BRACKET
SEE J 2 HOSE NUT
TEEEEC PT2 TUBE
1 ENGINES PRE-PW-SB 72-191
2 ENGINES POST-PW-SB 72-191
3 ENGINES POST-PW-SB 73-101
4 10. ENGINES PRE-PW-SB 72-332 L-A3038 10A. ENGINES POST-PW-SB 72-332 1189
Front Fan Case Wiring, Tube and Hose Installation Figure 401 (Sheet 1)
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72-33-01
ALL ú ú N01 Page 402 ú Jun 18/00
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
SEE C
32. BRACKET
FLANGE A1
FLANGE A FLANGE B
26. BOLT (2 LOCATIONS)FLANGE B1
25. MOUNTING PAD
4.
SCREW

5.
WASHER

27. BRACKET 6. NUT
WIRE BUNDLE
W3502
10. OR 10A. BRACKET 4
SEE O 27. BRACKET
WIRE BUNDLE
FLANGE B1 W3504
BRACKET
38. BRACKET
6. NUT
37. BRACKET 12 O'CLOCK
SEE N POSITION
4. SCREW WIRE
B 5. WASHER BUNDLE
6. NUT
27. BRACKET
FLANGE A1