(b) Install the new gasket [2] on the cooler [1].
(c) Install the cooler [1] onto the engine fan case.
NOTE: Make sure the bolt holes in the cooler line up with the holes on the engine fan
case.
(d) Install the eight bolts [3] and washers [4] that hold the cooler to the engine fan case.
(e) Tighten the eight bolts [3] to 70 in-lb (7.9 N·m) - 80 in-lb (9.0 N·m).
(f) If the bolts [3] were originally lockwired in place, do this task: Lockwire Installation,
TASK 70-20-01-800-804-F00.
SUBTASK 24-11-21-420-003
CAUTION
USE TWO WRENCHES TO TIGHTEN THE TUBE COUPLING NUTS. USE ONE
WRENCH TO HOLD THE UNION AND THE WRENCH TO TIGHTEN THE
COUPLING NUT. IF YOU DO NOT USE TWO WRENCHES, DAMAGE TO THE
TUBES AND UNIONS CAN OCCUR.
(2) Install the oil-in and the oil-out lines.
(a) Connect the coupling nut on the oil-in line to the oil-in union.
1) Tighten the coupling nut on the oil-in line to 360 ±18 in-lb (41 ±2 N·m).
2) Back off the coupling nut on the oil-in line to decrease the torque.
3) Tighten the coupling nut again to 360 ±18 in-lb (41 ±2 N·m).
(b) Connect the coupling nut on the oil-out line to the oil-out union.
1) Tighten the coupling nut on the oil-out line to 360 ±18 in-lb (41 ±2 N·m).
2) Back off the coupling nut on the oil-out line to decrease the torque.
3) Tighten the coupling nut again to 360 ±18 in-lb (41 ±2 N·m).
SUBTASK 24-11-21-610-001
(3) Do this task: IDG Servicing (Oil Fill), TASK 12-13-21-600-801.
H. IDG Air/Oil Cooler Installation Test
SUBTASK 24-11-21-790-001
(1) Do the test listed in the Power Plant Test Reference Table, TASK 71-00-00-800-811-F00.
I. Put the Airplane Back to Its Usual Condition
SUBTASK 24-11-21-010-003
WARNING
OBEY THE INSTRUCTIONS IN THE PROCEDURE TO CLOSE THE THRUST
REVERSERS. IF YOU DO NOT OBEY THE INSTRUCTIONS, INJURIES TO
PERSONS AND DAMAGE TO EQUIPMENT CAN OCCUR.
(1) Do this task: Close the Thrust Reverser (Selection), TASK 78-31-00-010-804-F00.
SUBTASK 24-11-21-410-001
(2) Do this task: Close the Fan Cowl Panels, TASK 71-11-02-410-801-F00.
END OF TASK
737-600/700/800/900
AIRCRAFT MAINTENANCE MANUAL
24-11-21
Page 410
D633A101-ILF Oct 15/2019
ECCN 9E991 BOEING PROPRIETARY - Copyright © Unpublished Work - See title page for details
EFFECTIVITY
ILF ALL
To Next Page
Loading...
