TM 55284025423
1108 ADJUST FUEL CONTROL (N1) (Continued)
1108
3. Adjust airbleed band closure as follows:
NOTE
Fuel control (2) is equipped with an ad-
justment that is used to set the airbleed
operating ranges.
NOTE
Engine acceleration may not be satisfac-
tory if bleed band closure is not within
specified N1 speed. If N1 speed for bleed
band closure is above that specified, an
unacceptable increase in fuel consump-
tion will result until bleed band closes. If
bleed band does not close at all or opens
again at high power, the engine will suffer
loss of maximum power.
Start engine and operate at ground
a.
idle to allow temperatures to stabilize.
(Ref. TM 55152024010 or Task
b. Set collective lever at minimum beep and
thrust.
c.
Set engine condition lever to flight.
d. Slowly increase power demand until
bleed band closes.
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1530 Change 11
