LIGHT LIGHT LIGHT
RAYS RAYS RAYS

ANY BRIGHT SPOT  ANY BRIGHT SPOT  OK SHOWN -
LARGE OR SMALL - LARGE OR SMALL - NO SERVICING 
SERVICING REQUIRED  SERVICING REQUIRED  REQUIRED 
____NOTE:  IF THE IDG DOES NOT 
HAVE THE "OK" INDICATOR, 
IT WILL APPEAR BLACK. 

A-A

Integrated Drive Generator Oil Replenishing
Figure 301 (Sheet 2)

EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

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 ALL  ú ú 01 Page 303 ú Oct 10/92
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL

 B. Consumable Materials
 (1)  D00390 Oil - Engine
 C. References
 (1)  
AIPC 24-11-01 Fig. 2

 (2)  
WDM 24-11-11, WDM 24-11-12, WDM 24-11-13, WDM 24-11-14

 (3)  
SSM 24-11-01, SSM 24-11-02, SSM 24-11-03, SSM 24-11-04

 D. Access
 (1)  
Location Zone
 412 Engine 1 - Main Gearbox Aft Face 7 o'clock
 422 Engine 2 - Main Gearbox Aft Face 7 o'clock
 432 Engine 3 - Main Gearbox Aft Face 7 o'clock
 442 Engine 4 - Main Gearbox Aft Face 7 o'clock

 (2)  
Access Panel
 417B IDG Service Pressure Relief Access Door
 427B IDG Service Pressure Relief Access Door
 437B IDG Service Pressure Relief Access Door
 447B IDG Service Pressure Relief Access Door

 E. Procedure
 S 013-002
 (1)
Open the IDG oil service access door on the left core cowl panel.

 S 843-004

 (2)  
Release the pressure on the IDG as shown below:

 (a)  Remove the cover from the overflow drain coupling on the IDG.
 NOTE: The overflow drain pressure fill covers do not leak IDG
____ oil as much as the dust covers.
 (b)  Put the free end of the outlet hose into a container
 WARNING: BE CAREFUL WHEN YOU CONNECT THE OUTLET ADAPTER TO THE
_______ OVERFLOW DRAIN COUPLING. USE A RAG AROUND THE FITTING TO PREVENT A SPRAY CAUSED BY PRESSURE IN THE IDG CASE. HOT OIL CAN CAUSE INJURIES.
 (c)  Connect the adapter and the oil outlet hose to the overflow drain coupling on the IDG.
 NOTE: It is usual for some oil to drain when you connect
____ the adapter to the coupling.
 (d)  
Permit the oil that drains from the hose, to flow into the container.

 (e)  
Keep the free end of the hose below the level of the IDG.

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 ALL  ú ú 01 Page 304 ú Feb 18/01
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
 S 613-006
 CAUTION:_______DO NOT MIX TYPES OR BRAND NAMES OF OIL IN THE IDG. INCORRECT OILS CAN CAUSE DAMAGE TO THE IDG.
 (3)  Connect the pressure fill hose of the service cart to the pressure fill coupling on the IDG.
 NOTE: Make sure the service cart pressure fill hose has only oil
____
 and does not have air mixed with oil in the hose.

 NOTE: The pressure oilers do not leak as much as the dust covers.
____
 S 613-007
 CAUTION: MAKE SURE THAT THE IDG OVERFLOW DRAIN ADAPTER IS CORRECTLY
_______ INSTALLED. MAKE SURE THAT THE FREE END OF THE OUTLET HOSE IS NOT BELOW THE SURFACE OF THE OIL IN THE CONTAINER. MAKE SURE YOU DO NOT CAUSE KINKS IN THE OUTLET HOSE. THE IDG CAN BE DAMAGED BY INCORRECT OIL FILL PROCEDURES.
 (4)  Use the service cart to fill the IDG with oil.
 CAUTION: CONTINUE TO PUT OIL INTO THE IDG UNTIL A MINIMUM OF
_______ 1 QUART (1 LITER) OF CLEAR OIL FLOWS INTO THE CONTAINER. THE IDG CAN BE DAMAGED BY INCORRECT OIL FILL PROCEDURES.
 (a)  The IDG is correctly filled after a minimum of 1 quart (1 liter) of oil flows into the container and no air is mixed with the overflow oil.
　
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