2-18 ENSTROM 480B OPERATOR'S MANUAL
FAA Approved: Apr 16/10 Rev. 14
Report No. 28-AC-023 Apr 16/10
d. Monitor TOT for over temperature conditions.
Refer to Chapter 1 for limitations.
e. Starter switch – Release at 58% N
1
. Note elapsed
time for start. Observe the starter limitations
prescribed in Chapter 1 and the average engine
starting time shown in Chapter 9.
f. Engine oil pressure – Check.
g. Gas producer – Check 59-65% N
1
.
h. N
2
– Check stabilized.
CAUTION
If the main rotor is not moving when 30% N
1
is
reached, abort the start and make an entry in
the aircraft log book.
5. Ground power unit – Disconnect (if used).
CAUTION
Check that the ground power unit is
disconnected prior to turning the Generator
switch ON.
6. MAIN GEN switch – ON, check DC GEN caution
light out, and Volt/Ammeter indicates a load. Wait until
the ammeter load decreases below the redline before
turning any other electrical system on.
7. Avionics master switch – ON when the ammeter
indicates less than 50 amps.
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