Cessna Grand Caravan 208B G1000 Manual page 199

CESSNA
MODEL 208B G1000
BEFORE STARTING ENGINE
The Before Starting Engine checklist procedures should be followed
closely to assure a satisfactory engine start. Most of the checklist items
are self-explanatory. Those items that may require further explanation
are noted in the following discussion.
When setting electrical switches prior to engine start, only those lighting
switches that are necessary for a night-time engine start should be
turned on. All other switches, including exterior lights, anti-ice, deice,
ventilation fans/ air conditioning (if installed) switches, should be turned
off. The BLEED AIR HEAT Switch should be off to prevent excessive
compressor bleed during the engine start. Also, the standby power
switch should be off during engine starts.
Leaving the BLEED AIR HEAT Switch ON can result in
a hot start or abnormal acceleration to idle.
The generator switch is spring-loaded to the ON position. When the
starter switch is placed in the START or MOTOR position, the generator
control unit (GCU) opens the generator contactor. When the starter
switch is returned to the OFF position after an engine start, the GCU
closes the generator contactor, thereby placing the generator on the
line.
The IGNITION Switch is left in the NORM position for engine starting
with the starter motor (non-windmilling start). In this position, the
igniters are energized when the starter switch is placed in the START
position. Ignition is automatically terminated when the starter switch is
turned OFF.
I t i s e s p e c i a l l y i m p o r t a n t t o v e r i f y t h a t t h e
EMERGENCY POWER Lever is in the NORMAL
position (aft of the IDLE gate) during engine starts. With
the lever forward of this gate, excessive quantities of
fuel will be discharged through the fuel nozzles when
the FUEL CONDITION Lever is moved to the LOW
IDLE position and a hot start will result.
FAA APPROVED
208BPHBUS-00
(Continued)
CAUTION
CAUTION
(Continued Next Page)
SECTION 4
NORMAL PROCEDURES
U.S.
4-35