(Continued)
F/O Electrical System Panel, P6-3
Row Col Number Name
E 5 C01320 ENGINE FUEL ENGINE 1 HPSOV CONT
E 6 C01395 ENGINE FUEL ENGINE 1 HPSOV IND
SUBTASK 24-11-11-710-004
CAUTION
THE IDG INPUT SHAFT MUST BE RECONNECTED PRIOR TO ENGINE
START. WHEN THE IDG IS DISCONNECTED WITH THE ENGINE SHUT
DOWN OR BELOW IDLE SPEED, THERE WILL NOT BE COMPLETE
SEPARATION OF THE IDG DOG TEETH. IF YOU DO NOT RECONNECT THE
IDG PRIOR TO ENGINE START DAMAGE TO THE IDG CAN OCCUR.
(4) Reconnect the IDG drive shaft as follows:
(a) Slowly pull the IDG Disconnect Reset Ring to the outward travel limit.
1) Make a note of the amount of hand force necessary.
(b) Make sure that a click is felt in the Disconnect Reset Ring as it gets near the outward limit
of travel.
NOTE: Operation of the Rest Ring should be smooth with moderate force necessary and
no indication of binding.
(c) Allow the Disconnect Reset Ring to slowly return to the maximum inward position.
NOTE: Operation of the Rest Ring should be smooth with moderate force required and
no indication of binding.
(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 amount of hand force necessary is less than the amount used in the
previous step.
(f) Make sure that there is no click during the second pull of the Disconnect Reset Ring.
1) If the hand force does not decrease, or a click is produced during the second pull of
the Disconnect Reset Ring, replace the IDG.
(g) Allow the Disconnect Reset Ring to slowly return to the maximum inward position.
SUBTASK 24-11-11-700-001
(5) Do a test of the GCU as follows:
(a) Make sure that the STANDBY POWER switch on the P5-5 panel is set to the AUTO
position.
(b) Set the BAT switch on the P5-13 panel to the ON position.
(c) Push the GCU TEST switch on the GCU for at least one second.
(d) Make sure that all seven of the indicator lights on the GCU come on for approximately
three seconds.
(e) Make sure that all seven of the indicator lights on the GCU go off for approximately three
seconds.
(f) Make sure that the green GCU PASS light on the GCU comes on for approximately
seven seconds.
SUBTASK 24-11-11-710-007
(6) Install safety wire on the IDG Disconnect switch cover.
737-600/700/800/900
AIRCRAFT MAINTENANCE MANUAL
24-11-11
Page 604
D633A101-ILF Feb 15/2019
ECCN 9E991 BOEING PROPRIETARY - Copyright © Unpublished Work - See title page for details
EFFECTIVITY
ILF ALL
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