Beechcraft C-12C Operator And Technical Reference Manual page 837

a. IGNITION AND ENGINE STARTER
switch – ON.
illuminate and associated FUEL PRESS
light should extinguish.
CAUTION
If ignition does
10 seconds after moving condition lever to
LOW IDLE, initiate
procedure, Paragraph 8-25.
reason a starting attempt is discontinued,
the entire starting sequence must be
repeated after allowing the engine to come
to a complete stop (1-minute minimum).
b. Generator switch (first engine) – RESET
then ON as N
1
c. CONDITION
stabilizes above 12% for 5 seconds
minimum) – LOW IDLE.
CAUTION
Monitor TGT to avoid a hot start. If there is
a rapid rise in TGT, be prepared to abort
the start before limits are exceeded.
During starting, the maximum allowable
TGT is 1000 °C for 5 seconds. If this limit is
exceeded, use Abort Start procedure,
Paragraph 8-24, and discontinue start.
Enter the peak temperature and duration
on DA Form 2408-13-1.
d. TGT and N
1
maximum, N
1
e. Oil pressure – Check (60 psi minimum).
f. IGNITION AND ENGINE STARTER
switch – OFF after 50% N
decreasing.
4. Engine and systems instruments – Check.
5. BATTERY CHARGE light on – Check.
6. INVERTER switches
INVERTER lights OFF.
7. Second engine generator switch – RESET,
then ON.
8. CONDITION levers – As required.
9. Red anticollision light – Reset.
IGN ON light should
not occur within
Engine Clearing
If for any
reaches 12%.
lever (after N RPM
1
– Monitor (TGT 1000 °C
52% minimum).
.and TGT
1
– ON, check,
To reset, turn
5 seconds, then ON.
When voltage drops below approximately
20 volts, the red anticollision light may
become inoperative.
8-24. ABORT START.
1. CONDITION lever – FUEL CUTOFF.
2. IGNITION AND ENGINE STARTER switch
– STARTER ONLY.
3. TGT – Monitor for drop in temperature.
4. Ignition and engine starter switch – OFF
after TGT is below 750 qC.
8-25. ENGINE CLEARING.
1. CONDITION lever – FUEL CUTOFF.
2. IGNITION AND ENGINE STARTER switch
– OFF (1-minute minimum).
Do not exceed
40 seconds on and 60 seconds off for two
starting attempts and engine clearing
procedure. Allow 30 minutes off before
additional starter operation.
3. IGNITION AND ENGINE STARTER switch
– STARTER ONLY (15 seconds minimum,
40 seconds maximum).
4. IGNITION AND ENGINE STARTER switch
– OFF.
* 8-26. FIRST ENGINE START (GPU START).
1. EXTERIOR LIGHT switches – As required.
2. Propeller area – Clear.
3. Engine – Start.
a. IGNITION AND ENGINE STARTER
switch – ON.
illuminate and associated FUEL PRESS
light should extinguish.
TM 1-1510-218-10
NOTE
OFF approximately
CAUTION
starter limitation
IGN ON light should
of
8-11