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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
757
MAINTENANCE MANUAL
WARNING:_______ BE CAREFUL WHEN YOU CONNECT THE OVERFLOW DRAIN HOSE.
THE PRESSURE IN THE IDG CAN CAUSE HOT OIL TO COME OUT
OF THE OVERFLOW DRAIN COUPLING. HOT OIL CAN CAUSE
INJURY TO PERSONS.
CAUTION: USE THE CORRECT ADAPTER TO RELEASE THE PRESSURE FROM
_______ 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.
4) Connect the overflow drain hose to the pressure oiler on the IDG.
5) After the pressure in the IDG is vented, remove the overflow drain coupling.
6) Remove the IDG end of the oil line to the pressure oiler. Place the oil line into a container.
7) Connect the hose on the oil service equipment to the pressure oiler.
CAUTION: WHEN THE PRESSURE OILER IS FLUSHED, DO NOT MIX TYPES
_______ OF OIL. IF THE OIL TYPES ARE MIXED DAMAGE TO THE IDG CAN OCCUR.
8) Flush the pressure oiler with 1/2 quart of oil.
9) Remove the oil service equipment to the pressure oiler.
10) Connect the oil service equipment to the hose end of the pressure oiler.
11) Clean the oil from the pressure oiler with Isporopyl alcohol. Dry the oiler with dry compressed air or nitrogen.
NOTE: Do not use chlorinated solvents to clean the
____ pressure oiler. Chlorinated solvents can cause damage to the IDG and the IDG oil system.
12) Apply pressure for a minimum of 20 seconds to the adapter fitting with the oil servicing tool and check the pressure oiler for leaks.
NOTE: Apply between 50 and 500 PSI to the pressure oiler.
____ Do not apply more than 500 PSI to the pressure oiler.
13) If the pressure oiler leaks, flush the pressure oiler with oil and do the pressure test.
14) If the pressure oiler leaks after the (2) second pressure test, replace the pressure oiler.
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757
MAINTENANCE MANUAL
(d) Clean the oil from the pressure oiler with Isporopyl alcohol. Dry the oiler with dry compressed air or nitrogen.
NOTE: Do not use chlorinated solvents to clean the
____ pressure oiler. Chlorinated solvents can cause damage to the IDG and the IDG oil system.
S 416-063
(4) Close the fan cowl panels (AMM 71-11-04/201).
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24-11-01
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
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757 MAINTENANCE MANUAL
SCAVENGE FILTER - MAINTENANCE PRACTICES
_______________________________________
1. General_______
A. This procedure has three tasks:
(1)
The first task removes the integrated drive generator (IDG) scavenge filter from the airplane.
(2)
The second task does an inspection/check of the scavenge filter.
(3)
The third task installs the scavenge filter on the airplane.
B. If the IDG is to be replaced for any reason, the IDG Scavenge Filter and filter element must be reinstalled into the faulty IDG and sent to the repair shop for analysis.
C. A removed filter element should not be used again, even if the filter element looks normal. Install a new filter element.
TASK 24-11-02-022-007
2. Scavenge Filter Removal (Fig. 201)_______________________
A. Equipment
(1)
IDG oil overflow drain hose with outlet adapter Ozone OMP2505-3
(2)
Container - 1 gallon capacity
B. References
(1) AMM 71-11-04/201, Fan Cowl Panels
C. Access
(1)
Location Zones
410 Power Plant Nacelle (Left)
420 Power Plant Nacelle (Right)
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