F. Prepare for the Cooler Removal
SUBTASK 24-11-21-010-001
WARNING
DO THESE SPECIFIED TASKS IN THE CORRECT SEQUENCE BEFORE YOU
OPEN THE THRUST REVERSERS: RETRACT THE LEADING EDGE, DO THE
DEACTIVATION PROCEDURES FOR THE LEADING EDGE AND THE THRUST
REVERSER (FOR GROUND MAINTENANCE), AND OPEN THE FAN COWL
PANELS. IF YOU DO NOT OBEY THE ABOVE SEQUENCE, INJURIES TO
PERSONS AND DAMAGE TO EQUIPMENT CAN OCCUR.
(1) Do this task: Open the Thrust Reverser (Selection), TASK 78-31-00-010-801-F00.
SUBTASK 24-11-21-010-002
(2) Do this task: Open the Fan Cowl Panels, TASK 71-11-02-010-801-F00.
SUBTASK 24-11-21-680-001
WARNING
DO NOT TOUCH THE COMPONENTS OF THE OIL SYSTEM IF THE ENGINE
IS HOT. THESE COMPONENTS STAY HOTTER THAN OTHER
COMPONENTS. HOT COMPONENTS CAN BURN YOU.
WARNING
DO NOT LET HOT OIL GET ON YOU. PUT ON CLOTHES, GOGGLES, AND
OTHER EQUIPMENT FOR PROTECTION, OR LET THE ENGINE BECOME
COOL. HOT OIL CAN BURN YOU.
CAUTION
DO NOT LET OIL GET ON THE ENGINE, OR OTHER COMPONENTS.
IMMEDIATELY CLEAN THE AREAS THAT OIL FALLS ON. OIL CAN CAUSE
DAMAGE TO PAINT AND RUBBER.
(3) Do these steps to drain the IDG oil:
WARNING
MAKE SURE THAT YOU PUSH THE PUSH-TO-VENT VALVE. IF YOU DO
NOT DO THIS, IT COULD CAUSE HOT OIL TO SPRAY AND CAN CAUSE
INJURY TO PERSONS.
(a) Push the PUSH-TO-VENT VALVE on the IDG for a minimum of 15 seconds.
(b) Place an oil resistant container (5 gal)(19 Liter), STD-1055, below the IDG to catch the
oil.
(c) Remove the lockwire from the drain plug on the IDG.
(d) Remove the drain plug [21], and let the oil drain into the container.
(e) Remove the used o-ring [22] from case drain plug and discard.
G. Cooler Removal
SUBTASK 24-11-21-020-001
(1) Do these steps to remove the cooler [1]:
737-600/700/800/900
AIRCRAFT MAINTENANCE MANUAL
24-11-21
Page 403
D633A101-ILF Jun 15/2019
ECCN 9E991 BOEING PROPRIETARY - Copyright © Unpublished Work - See title page for details
EFFECTIVITY
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