TM 1-1510-225-MTF
PROCEDURE
TROUBLESHOOTING
REFERENCE
If the battery is partially discharged, the BATT
CHG annunciator will illuminate approximately 6
seconds after external power is on line. If the
annunciator does not extinguish within 5 minutes,
refer to emergency procedures in TM 1-1510-225-
10.
*22. Annunciator panels - Test as follows:
D1-4
(a) Annunciator TEST switch - Hold
depressed. Check that all annun-
c i a t o r p a n e l s , e n g i n e f i r e
extinguisher/detector switch-
indicators, MASTER CAUTION,
a n d M A S T E R W A R N I N G
annunciators are illuminated,
then release.
(b) MASTER CAUTION and MAS-
TER WARNING annunciators -
Depress and release. Both annun-
ciators should extinguish.
FIRST ENGINE START (BATTERY START)
Starting procedures are identical for both engines except the
second engine generator is kept off line after the second
engine start to allow performing the current limiters check.
When making a battery start, the right engine should be
started first. When making a ground power unit (GPU) start,
the left engine should be started first due to the GPU recep-
tacle being located adjacent to the right engine. Normally,
only one engine is started utilizing the GPU, reverting to a
battery start procedure for the second engine start. A crew-
member should monitor the outside observer throughout the
engine start.
1. Propeller area - Clear.
2. IGNITION AND ENGINE START
A1-7
switch - ON. IGN ON annunciator
should illuminate and associated
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