Starting Engine - THRUSH S2R – G10 Maintenance Manual

AIRCRAFT MAINTENANCE MANUAL
f. Turn Battery Switch ON, or to EXT
PWR position if external power will be
used to start the engine.

STARTING ENGINE

Use the following procedure to start the
G10 engine:
a. Power Lever – Flight idle position.
*NOTE*
Power lever must be in flight idle
position prior to and during start
sequence to prevent propeller
from coming off start lock during
starting.
b. Speed Lever – Low RPM position
c. Engine Fuel Switch – Cycle to off,
then center position
d. Fuel Valve – ON
e. Fuel Aux Pump – ON
f. Fuel Inlet Pressure Indicator –
CHECK 8 PSIG minimum
CAUTION
Do not attempt an engine start
without the propeller being on
the start locks.
*NOTE*
Engine starts can be made with the
aircraft battery power, or with
auxiliary electrical power. However,
it is recommended that an auxiliary
power unit be used when ambient
air temperature is ten degrees F. or
below. Ensure that ground power
unit (aux power) is regulated to 28
volts dc, 800 amperes during start
cycle.
g. Negative Torque System Check
The NTS system should be checked
during the first start of the day or if a
malfunction of the system is suspected.
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THRUSH AIRCRAFT, INC – MODEL S2R-G10
To accomplish the check, do the following
during starting:
1) NTS Light – PRESS to test
2) Unfeathering Pump Switch – ON
3) NTS Check Switch – ON
4) NTS Light – CHECK ON
5) Engine Starter – Ground position
(Carry out normal start)
6) NTS Light – OUT when starter is
engaged
7) NTS Light – ON at 10 to 30 percent
RPM
h. Engine Starter – Ground position
i. Ignition Switch – ON at 10% RPM
minimum
CAUTION
Check ignition light on prior to
operating fuel switch.
j. Engine Fuel Switch – ON at 10%
RPM minimum
CAUTION
k. If light-off is not indicated within
ten seconds or 20% RPM, reject
the start by
emergency shut-off lever.
l. Fuel Enrichment Switch – ON until
approximately 680 degrees EGT
(maximum during
degrees).
enrichment switch
satisfactory RPM
temperature.
CAUTION
If RPM stops increasing prior to
40% or if EGT is approaching
limits (770 degrees C) and
rising rapidly,
emergency shut-off lever.
activating the
start is 770
Then regulate
to obtain
increase and
activate the
Effective 03/26/2010