Piper SEMINOLE PA-44-180 Information Manual page 194

SECTION 7
DESCR/OPERATION
7.7 ENGINE CONTROLS (Continued)
The propeller control levers are used to adjust the propeller speed from
high RPM (low pitch) to feather (high pitch).
The mixture control levers are used to adjust the air to fuel ratio. An
engine is shut down by the placing of the mixture control lever in the full lean
(idle cut-off) position.
The friction adjustment lever on the right side of the control quadrant may
be adjusted to increase or decrease the friction holding the throttle, propeller,
and mixture controls or to lock the controls in a selected position.
The carburetor heat controls are located on the control quadrant just below
the engine control levers. When a carburetor heat lever is in the up, or OFF,
position the engine is operating on filtered air; when the lever is in the down,
or ON, position the engine is operating on unfiltered, heated air.
The cowl flap control levers (Figure 7-3), located below the control
quadrant, are used to regulate cooling air for the engines. The levers have three
positions: full open, full closed, and intermediate. A lock incorporated in each
control lever locks the cowl flap in the selected position. To operate the cowl
flaps, depress the lock and move the lever toward the desired setting. Release
the lock after initial movement and continue movement of the lever. The
control will stop and lock into place at the next setting. The lock must be
depressed for each selection of a new cowl flap setting.
REPORT: VB-1616
7-6
COWL FLAP CONTROLS
Figure 7-3
PA-44-180, SEMINOLE
ISSUED: JULY 12, 1995