OIL INDICATOR:
-SILVER SPOT NOT SEEN -SERVICING NOT REQUIRED.
. FOR IDG WITH "OK" LOW ANY SILVER SPOT LARGE OR SMALL -OIL INDICATOR: SERVICING REQUIRED
-"OK" SEEN - SERVICING
NOT REQUIRED.
NO SILVER SPOT -NO SERVICING REQUIRED
Summarized Low Oil Level Check Procedure Figure 302
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A
757
MAINTENANCE MANUAL
SEE A
FROM EXTERNAL OIL CIRCUIT OIL IN
SEE B
OIL CIRCUIT TO EXTERNAL OIL OUT COVERS NUT O-RING
O-RING OVERFLOW DRAIN COUPLING INTEGRATED DRIVE GENERATOR A PRESSURE FILL ELBOW COUPLING FILL (OIL) PRESSURE DRAIN (OIL) OVERFLOW
LOW OIL LEVEL INDICATOR
SEE C SCAVENGE FILTER DIFFERENTIAL
CASE DRAIN PLUG (OIL)
PRESSURE
INDICATOR
IDG (BOTTOM VIEW)
B
Integrated Drive Generator Oil Servicing Figure 303 (Sheet 1)
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757
MAINTENANCE MANUAL
ANY SILVER SPOT NO SILVER SPOT -
LARGE OR SMALL - NO SERVICING REQUIRED
SERVICING REQUIRED NOTE:____ BOTH TYPES OF
PRISMS ARE
PRESENTLY IN USE.
A-A
Integrated Drive Generator Oil Servicing Figure 303 (Sheet 2)
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757 MAINTENANCE MANUAL
S 213-032
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.
(1) Do a check to find if the IDG is disconnected.
NOTE: Do not do an oil level check of a disconnected IDG,
____
because it will be incorrect.
(a)
Does a DISCONNECT TRIP message show on the bus power control unit (AMM 24-41-03/401).
(b)
Correct the DISCONNECT TRIP message if it is necessary (AMM 24-41-03/401).
(c)
If the IDG is not disconnected, continue to do a check of the IDG oil level.
(d)
If an oil level check is necessary after a flight, start the check after 5 minutes of the engine shutdown.
S 013-008
(2) Open the IDG access panel, if the engine cowls are not open.
E. IDG Oil Level Check
S 213-009
(1)
Do a check of the IDG oil level.
S 213-043
(2)
Make sure the IDG low oil level indicator is clean, not damaged, missing or leaking.
(a) If the low oil level indicator is missing, damaged or hard to read, do the IDG oil servicing task.
NOTE: A plug will be installed in the IDG low oil level
____ indicator location if the indicator is removed.
NOTE: An operational IDG low oil level indicator is not
____ required for airplane dispatch.
(b)
Clean the face of the oil level indicator if it is necessary.
(c)
Look at the oil level indicator so the white marks align, and then examine the face of the indicator. 1) Use a flashlight if it is necessary, but do not point the
light directly at the indicator.
(d)
If the "OK" indication can be seen, the IDG servicing is not necessary.
(e)
If there is a silver mark on the face of the indicator, do the IDG Oil Servicing.
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