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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A

757
MAINTENANCE MANUAL

 S 413-010
 (3)  Close the IDG access panel.
 TASK 12-13-03-613-001
 3. IDG Oil Servicing (Fig. 303)
_________________
 A. General
 (1)  Do the IDG oil servicing through the IDG access panel, unless the engine cowl panels are open.
 B. References
 (1)  
AMM 20-30-04/201, Lubricants

 (2)  
AMM 24-41-03/401, BPCU BITE

 C. Equipment
 (1)  
Oil Service Dispenser - Risbridger UZ/7/1826 (preferred)

 (2)  
Oil Service Dispenser - Malabar WF150-1

 (3)  
Oil Service Cart - Malabar 53361

 NOTE: The cart must have a Ozone coupling OMP2506-3 or the
____ equivalent to connect with the pressure fill coupling.
 (4)  
Container - 5 gallon capacity

 (5)  
Overflow drain hose, with an adapter
 Ozone OMP2505-3 or optional oil overflow drain
 tool, Risbridger 2315 or equivalent

 D. Consumable Materials
 (1)  Oil - Mobil Jet II
 E. Access
 (1)  
Location Zones
 212 Flight Compartment
 410 Power Plant Nacelle (Left)
 420 Power Plant Nacelle (Right)

 (2)  
Access Panels
 413CL IDG Access Panel (Left Engine)
 423CL IDG Access Panel (Right Engine)

 F. Prepare to do the IDG Oil Servicing
 S 013-002
 (1) Open the IDG access panel if the engine cowls are not open.
 S 213-003
 CAUTION: A DISCONNECTED IDG MUST BE REMOVED FROM AN AIRPLANE IN LESS
_______ THAN 50 FLIGHT HOURS. AFTER 50 FLIGHT HOURS, DAMAGE TO THE IDG CAN OCCUR.
 (2)  Do a check to find if the IDG is disconnected.
 NOTE: It is not necessary to service a disconnected IDG.
____
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757 MAINTENANCE MANUAL
 (a)  
Does a DISCONNECT TRIP message show on the bus power control unit (AMM 24-41-03/401). 1) Correct the DISCONNECT TRIP message if it is necessary

 (AMM 24-41-03/401).

 (b)  
If the IDG is not disconnected, continue with the servicing procedure.

 G. IDG Oil Servicing
 S 613-005
 (1)  Do the IDG oil servicing.
 (a)  
Remove the cover from the overflow drain coupling for the IDG.

 (b)  
Put a container below the IDG to catch the oil which will flow from the IDG.

 (c)  
Put the end of the overflow drain hose into the container.

 WARNING: BE CAREFUL WHEN YOU CONNECT THE OVERFLOW DRAIN HOSE.
_______ PRESSURE IN THE IDG CAN CAUSE HOT OIL TO COME OUT OF THE OVERFLOW DRAIN COUPLING AND CAUSE INJURY TO PERSONS.
 CAUTION: MAKE SURE YOU USE THE CORRECT ADAPTER (OZONE OMP2505-3) TO
_______ ATTACH THE OVERFILL DRAIN HOSE TO THE OVERFILL DRAIN COUPLING ON THE IDG. AN INCORRECT ADAPTER WILL NOT RELEASE THE PRESSURE IN THE IDG. THIS CAN CAUSE AN INCORRECT OIL LEVEL IN THE IDG AND THE SUBSEQUENT FAILURE OF THE IDG.
 (d)  
Connect the overflow drain hose to the overflow drain coupling for the IDG.

 (e)  
Permit the oil to flow from the IDG into the container.

 NOTE: It is usual for some of the oil to drain from the IDG
____
 when you connect the hose.

 (f)  
Remove the cover from the pressure fill coupling for the IDG.

 (g)  
Connect the hose on the oil service equipment to the pressure fill coupling for 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.
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