Engine Starting - Bell BHT-206L3-FM-1 LongRanger-III Flight Manual

BHT-206L3-FM-1
DOTAPPROVED
Collective pitch - Increase; ensure
audio on. Fully down; ensure audio
off.
29. Cyclic and pedals - Positioned
for start.
30. POS LT switch - On for night
operation.
31. ANTI COLL LT switch - On.
2-I 7. ENGINE STARTING
1. Collective pitch - Fully down.
2. GOV RPM switch - DECR for 3
seconds.
3. Throttle - Fully closed.
4. Rotors - Clear.
NOTE
If TOT gage has a red triangle at
826°C refer to BHT-206L3-FMS-17
for alternate 10 second start limit.
5. STARTER button - Press to
engage. (Observe engine starter
limitations.)
6. TURB OUT TEMP - 150°C or
below.
.
I
ENGINE STARTS BELOW 716°C
TURB OUT TEMP FROM
INTRODUCTION OF FUEL AND IN
EXCESS OF 40 SECONDS MAY BE
DETRIMENTAL TO TURBINE
COMPONENTS. OPTIMUM
STARTS OCCUR WHEN THE
STARTING TURB OUT TEMP IS
MAINTAINED BETWEEN 716°C
AND 768°C, WITH START TIMES
LESS THAN 40 SECONDS.
NOTE
At the appropriate GAS
PRODUCER RPM and TURB OUT
TEMP, introduce fuel with the
throttle to obtain the initial TURB
OUT TEMP rise. Observe the
927°C limit. After initial TURB OUT
TEMP rise. modulate throttle to
maintain' TURB OUT TEMP
between 716°C and 768°C. This
sequence should provide
optimum starts in less than 40
seconds from the introduction of
fuel. If limits are exceeded or
TURB OUT TEMP warning light
illuminates, refer to Model 206L-3
Maintenance Manual.
7. Throttle - At 12% GAS
PRODUCER RPM modulate to
idle to maintain 716°C to 768°C
TURB OUT TEMP during start
cycle.
8. TURB OUT TEMP - Monitor. (Do
not exceed 10 seconds above
768°C or a maximum of 927°C.)
I
. . . . . . . . ...*..*..
CAUTION
. . . . . . . . . . . . . . . . .
IF MAIN ROTOR IS NOT
ROTATING BY 25% GAS
PRODUCER RPM. ABORT START.
NOTE
ENG OUT light extinguishes at 55
± 3% GAS PRODUCER RPM.
9. STARTER - Release at 58% GAS
PRODUCER RPM.
10.
ENG OIL and XMSN OIL
pressures - Check.
DOWN FOR MORE THAN 15
2-10 Rev. 4