MAIN GEARBOX
DSEE IDG (G19) B FWD
Integrated Drive Generator Installation
Figure 401 (Sheet 1)
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11. PHASE LEAD 12. OIL-OUT
(4 LOCATIONS) TUBE 13. UNION
48. FANNING 1. IDG (G19) 2. ELECTRICAL
5. WASHER STRIP CONNECTOR
(4 LOCATIONS) (DG19B)
A
747-400 MAINTENANCE MANUAL
6. TERMINAL NUT (4 LOCATIONS)
1
9. TERMINAL BLOCK SCREW (2 LOCATIONS)
FWD
8. ELECTRICAL 4. O-RING CONNECTOR 10. WASHER
(DG19A) (2 LOCATIONS)
7. TERMINAL BLOCK COVER
C
3. OIL-IN TUBE
42. WASHER
44. UNION
40. PRESSURE FILL
41. JAMNUT 1. IDG (G19)
43. BRACKET COUPLING 45. O-RING
39. COVER 14. O-RING
(PRESSURE 16. OVERTEMPERATURE
FILL) RELIEF VALVE
37. OVERFLOW DRAIN TUBE DRAIN
15. UNION
COUPLING 17. NUT
18. WASHER
19. CLAMP (2 LOCATIONS)
36. WASHER 21. O-RING 17. NUT 35. NUT 20. BOLT (2 LOCATIONS) 22. CASE 33. WASHER DRAIN PLUG
19. CLAMP
34. JAMNUT 23. O-RING 18. WASHER 24. UNION
31. ELBOW
38. COVER 29. O-RING
(OVERFLOW) 32. OVERFLOW 25. PRESSURE FILL DRAIN TUBING 26. ELBOW TUBING
28. WASHER
31. ELBOW
27. JAMNUT
30. UNION
1
THE TERMINAL NUT AND WASHER FWD
CAN BE REPLACED WITH A NUT THAT HAS AN ATTACHED WASHER
D
(NAS 1726-6D).
Integrated Drive Generator Installation Figure 401 (Sheet 2)
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A
747-400
MAINTENANCE MANUAL
N
T3
(RED) T1 (BLUE) (YELLOW) T2
48. FANNING
STRIP
E
Integrated Drive Generator Installation
Figure 401 (Sheet 3)
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G54629
A
747-400
MAINTENANCE MANUAL
MAIN GEARBOX
1. IDG (G19)
46. QAD RING
47. O-RING
SEE G
FWD
PRESSURE FILL
F COUPLING
OVERFLOW DRAIN COUPLING
CLAMPING TRACK AREA
TAP RING
HERE
46. QAD RING
TENSION
BOLT NUT
QAD RING ALIGNMENT MARKS SURFACE (CLOSED POSITION)
TENSION
BOLT NUT
TENSION BOLT (CLOSED
TAP RING WITHIN POSITION)
THIS AREA ONLY
TENSION BOLT
(OPEN POSITION)
G
Integrated Drive Generator Installation
Figure 401 (Sheet 4)
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747-400
MAINTENANCE MANUAL
LOCKWIRE THE TENSION BOLT
DISTANCE MEASURED MUST BE EQUAL
TO OR GREATER THAN 0.562 INCH.
Intergrated Drive Generator Installation
Figure 401 (Sheet 5)
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