TM 55-2840-231-23
6.6 Gas Producer Fuel Control - Idle Check - Continued
AIRFRAME/-Continued
Very slowly roll the twist
grip in the direction of
increased power from
IDLE position just enough
to obtain perceptible
movement of pointer tip
(approximately the width
of the pencil mark). Index
the twist grip at this
position. Move the pointer
to exactly the 30 degree
mark. Index the twist grip
at this position.
c. Start the engine and let
N1 stabilize in IDLE
position. Very slowly roll
the twist grip to index
mark in direction of cut
off. If N1 idle speed
decreases, take the
following corrective
action.
d. If the pointer is at or
above the 30 degree
mark, rerig aircraft
linkage to move pointer
tip to a point just below
the 30 degree mark.
e. If pointer is more than
5/64 in. (2.0 mm) below
30 degree mark, rerig
aircraft linkage to move
closer to 30 degree mark.
The pointer must be at or
within 5/64 in. below the
30 degree mark.
6-8
Change 11
