8. PACKING
19. PACKING
9. PACKING
18. PACKING
10. ADAPTER
17. ADAPTER
11. ADAPTER
16. ADAPTER
12. PT2 HOSE
15. P5 HOSE 13. PAMB HOSE
14. PB HOSE
FAN CASE FWD
A
Electronic Engine Control (EEC) Installation
Figure 401 (Sheet 1)
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
24. BOLT
THE FLANGE B2
L-A6033
Electronic Engine Control Installation
Figure 401 (Sheet 2)
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////////////////////////A / PW4000 SERIES /747-400 / ENGINES/MAINTENANCE MANUAL ////////////////////////
(c)
6G15 SCU ALT PWR ENG 1
(d)
6G23 ENG SCU 1
(e)
6E15 ENG 2 PERF SOL PWR A
(f)
6E16 ENG 2 PERF SOL PWR B
(g)
6G16 SCU ALT PWR ENG 2
(h)
6G24 ENG SCU 2
(i)
6D15 ENG 3 PERF SOL PWR A
(j)
6D16 ENG 3 PERF SOL PWR B
(k)
6G17 SCU ALT PWR ENG 3
(l)
6G25 ENG SCU 3
(m)
6C15 ENG 4 PERF SOL PWR A
(n)
6C16 ENG 4 PERF SOL PWR B
(o)
6G18 SCU ALT PWR ENG 4
(p)
6G26 ENG SCU 4
S 014-003-N00
(2) Open the right fan cowl panel (AMM 71-11-04/201).
S 034-004-N00
CAUTION:_______DO NOT REMOVE THE PROGRAMMING PLUG FROM THE ENGINE. YOU MUST KEEP THE PROGRAMMING PLUG WITH THE ENGINE WHEN YOU REPLACE THE EEC. IF YOU DO NOT DO THIS, YOU CAN GET AN INCORRECT THRUST RATING.
(3)
Disconnect the programming plug (1) from the J9DEP receptacle on the EEC (2).
(a)
Install the protection caps on the open end of the programming plug (1).
S 034-005-N00
(4)
Disconnect the electrical connector DM7198A (3) and the electrical connector DM7198B (23) from the receptacles on the EEC (2).
S 034-006-N00
(5)
Disconnect the electrical connectors (4, 5, 6, 20, 21, and 22) from the receptacles on the EEC (2).
S 034-007-N00
(6)
Install the protection cap on the open ends of the electrical connectors (3, 4, 5, 6, 20, 21, 22, and 23).
S 034-008-N00
(7)
Disconnect the hoses (12, 13, 14, and 15) from the ports on the bottom of the EEC (2).
S 034-009-N00
(8)
Install the protection cap on the open ends of the hoses (12, 13, 14, and 15) and the open ports on the EEC (2).
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S 034-010-N00
(9)
Remove the bolt (24) which attaches the ground strap (25) to the EEC (2).
S 034-011-N00
(10)
Remove the bolts (27), through the shock mounts, and washers (26) which attach the EEC (2) to the engine brackets.
S 024-012-N00
(11)
Remove the EEC (2) from the engine.
S 034-013-N00
(12)
If it is necessary to replace the EEC (2), remove the adapters (10, 11, 16, and 17) from the EEC.
(a)
Discard the packings (8, 9, 18, and 19).
S 034-014-N00
(13) Install the protection cap on the openings in the EEC (2).
TASK 73-21-04-404-015-N00
3. Install the Electronic Engine Control (EEC) (Fig. 401)
___________________________________________
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