(b) Make sure that the applicable DRIVE light on the P5 panel is on.
SUBTASK 24-11-11-710-002
(2) Do a check of the IDG disconnect inhibit function as follows:
NOTE: The IDG disconnect function is inhibited when the engine is below idle speed.
(a) Remove safety wire from the IDG Disconnect switch cover.
CAUTION
DO NOT ACTUATE THE DISCONNECT SWITCH FOR MORE THAN 3
SECONDS. ALLOW A MINIMUM OF 60 SECONDS BETWEEN
ACTUATION PERIODS. FAILURE TO FOLLOW THIS PROCEDURE CAN
CAUSE DAMAGE TO IDG.
(b) Push the applicable DISCONNECT switch on the P5 panel to the DISCONNECT position.
NOTE: Put a person near the IDG listening for no click and feeling for no movement
while lightly holding the IDG Disconnect Reset Ring. There should be no click
and no movement at IDG when the applicable DISCONNECT switch is pushed.
(c) Make sure that the DRIVE light on the P5 panel stays on.
(d) Slowly pull the IDG Disconnect Reset Ring to the outward travel limit.
1) Make a note of the amount of hand force necessary.
(e) Make sure that the force necessary to pull the ring is light.
(f) Make sure that no click is felt when pulling the IDG Disconnect Reset Ring.
SUBTASK 24-11-11-710-003
(3) Do a check of the IDG disconnect function as follows:
(a) Simulate an engine run as follows:
NOTE: The IDG disconnect function is inhibited when the engine is below idle speed.
1) Open these circuit breakers and install safety tags:
CAPT Electrical System Panel, P18-2
Row Col Number Name
A 1 C00458 ENGINE 1 IGNITION RIGHT
A 3 C00153 ENGINE 1 IGNITION LEFT
B 1 C01316 ENGINE 1 START LEVER CHAN A
F/O Electrical System Panel, P6-2
Row Col Number Name
B 6 C01318 ENGINE 2 START LEVER CHAN A
D 4 C00459 ENGINE 2 IGNITION RIGHT
D 6 C00151 ENGINE 2 IGNITION LEFT
F/O Electrical System Panel, P6-3
Row Col Number Name
B 3 C00360 FUEL SPAR VALVE ENG 2
B 4 C00359 FUEL SPAR VALVE ENG 1
B 5 C00540 FUEL SPAR VALVE IND
E 3 C01321 ENGINE FUEL ENGINE 2 HPSOV CONT
E 4 C01396 ENGINE FUEL ENGINE 2 HPSOV IND
E 5 C01320 ENGINE FUEL ENGINE 1 HPSOV CONT
737-600/700/800/900
AIRCRAFT MAINTENANCE MANUAL
24-11-11
Page 602
D633A101-ILF Feb 15/2019
ECCN 9E991 BOEING PROPRIETARY - Copyright © Unpublished Work - See title page for details
EFFECTIVITY
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