757 MAINTENANCE MANUAL
 CAUTION: WHEN YOU FILL THE IDG WITH OIL, DO NOT MIX TYPES OF OIL.
_______ TO MIX OILS COULD CAUSE DAMAGE TO THE IDG.
 (h)  Use the pump on 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.
 (i)  Stop pumping oil into the IDG when approximately one quart (1 liter) of oil flows from the overflow drain hose into the container and no air is mixed with the overflow oil.
 NOTE: The one quart (1 liter) of oil does not include the
____ oil that drained when the hose was connected to the overflow drain coupling or air mixed with the overflow oil.
 (j)  
Disconnect the hose on the oil service equipment, from the pressure fill coupling for the IDG.

 (k)  
Install the cover on the pressure fill coupling for the IDG.

 CAUTION: DO NOT REMOVE THE OVERFLOW DRAIN HOSE FROM THE IDG UNTIL
_______ TWO MINUTES AFTER THE OIL FLOW HAS DECREASED TO DROPS. FAILURE TO DRAIN THE IDG CORRECTLY WILL CAUSE TOO MUCH OIL IN THE IDG. THIS CONDITION WILL CAUSE AN IMMEDIATE OVERHEAT CONDITION AND CAUSE DAMAGE TO THE IDG.
 (l)  
When the oil flow from the overflow drain hose decreases to drops, wait two minutes then remove the overflow drain hose.

 (m)  
Install the cover on the overflow drain coupling for the IDG.

 (n)  
Close the IDG access panel.

 TASK 12-13-03-613-014
 4. IDG Oil Change (Fig. 303)
__________________________
 A. General
 (1)  This procedure replaces the oil in the IDG and external cooling circuit with new oil.
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 B. References
 (1)  
AMM 24-11-02/201, Scavenge Filter

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

 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
 D. Consumable Materials
 (1)  Oil - Mobil Jet II
 E. IDG Oil Change
 S 683-015
 (1)  Drain the IDG oil.
 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.
 (a)  
Open the Fan Cowl Panels (AMM 71-11-04/201).

 (b)  
Remove the cover from the overflow drain coupling on the IDG.

 (c)  
Put a container below the IDG.

 (d)  
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.
 (e)  Connect the overflow drain hose to the overflow drain coupling on the IDG.
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 (f)  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.
 (g)  Remove the case drain plug and allow the oil to flow from the
 IDG into the container.
　
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