757
MAINTENANCE MANUAL
B. Access
(1)
Location Zones
410 Power Plant Nacelle (Left)
420 Power Plant Nacelle (Right)
(2)
Access Panels
413/423 Fan Cowl Panels (Left)
414/424 Fan Cowl Panels (Right)
C. Procedure
S 434-010
(1)
Remove the covers from all the openings and connections related to the IDG air/oil heat exchanger solenoid valve.
S 424-011
(2)
Install the IDG air/oil heat exchanger solenoid valve to the engine-mounting bracket.
S 434-012
(3)
Install the three bolts that attach the IDG air/oil heat exchanger solenoid valve to the mounting bracket.
S 434-013
(4)
Tighten the three bolts.
S 434-014
(5)
Connect the pneumatic tubes to the IDG air/oil heat exchanger solenoid valve.
S 434-015
(6)
Tighten the tube connectors.
S 434-016
(7)
Safety the pneumatic tubes with lockwire.
S 434-022
(8)
Connect the electrical connector to the IDG air/oil heat exchanger solenoid valve.
(9)
Close the left and the right fan cowl panels (AMM 71-11-04/201).
S 414-019
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù.
AIRPLANES WITH IDG AIR/OIL HEAT ú 24-11-05
EXCHANGER SOLENOID VALVE ú ú 01 Page 403 ú Sep 28/99
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
757 MAINTENANCE MANUAL
IDG AIR/OIL HEAT EXCHANGER THERMAL SWITCH - REMOVAL/INSTALLATION
________________________________________________________________
1. General_______
A. This procedure contains two tasks. The first task removes the IDG air/oil heat exchanger thermal switch. The second task installs the IDG air/oil heat exchanger thermal switch.
TASK 24-11-06-004-001
2. Remove the IDG Air/Oil Heat Exchanger Thermal Switch_____________________________________________
A. Equipment
(1) Container - 1/2 U.S. gallon (2-liter) capacity, suitable to collect oil drainage from the thermal switch port
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)
(2)
Access Panels
413/423 Fan Cowl Panels (Left)
414/424 Fan Cowl Panels (Right)
D. Procedure
S 014-003
(1)
Open the fan cowl panel (AMM 71-11-04/201).
S 864-004
(2)
Release the pressure from the IDG oil system as follows:
(a)
Remove the cover from the overflow drain coupling on the IDG.
(b)
Put the container below the IDG to catch the oil.
(c)
Put the end of the overflow drain hose in the container.
WARNING:_______USE CARE WHEN YOU CONNECT THE DRAIN HOSE. PRESSURE IN THE IDG CAN CAUSE HOT OIL TO COME OUT OF THE COUPLING. HOT OIL CAN CAUSE SERIOUS INJURY.
(d)
Connect the overflow drain hose to the overflow drain coupling on the IDG. Allow the surplus oil to flow into the container.
(e)
Remove the overflow drain hose.
(f)
Install the cover on the overflow drain coupling.
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù.
AIRPLANES WITH IDG AIR/OIL HEAT ú 24-11-06
EXCHANGER THERMAL SWITCH ú ú 01 Page 401 ú Sep 28/99
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
757 MAINTENANCE MANUAL
S 034-005
CAUTION: MAKE SURE THE ELECTRICAL CONNECTOR IS NOT DIRTY BEFORE IT IS
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