Induction System - Piper Dakota PA-28-236 Pilot Operating Handbook

PIPER AIRCRAFT CORPORATION
PA-28-236, DAKOTA
7.7

INDUCTION SYSTEM

An induction scoop is located at the lower front of the cowling. This
scoop is removable for access to the air filter which is attached to the air
filter housing immediately behind the scoop. This air filter housing is
ducted to the carburetor air box. The air box is mounted onto the bottom
of the carburetor and either ram air from the front scoop and through the
filter or unfilter heated air from a shroud mounted on the muffler may be
manually selected through a two way valve.
Carburetor heat selection insures induction air flow should the filter
become blocked. Since the air is heated, the carburetor heat system offers
protection against induction system blockage caused by snow or freezing
rain or by the freezing of moisture accumulated in the carburetor air intake
throat. Carburetor heat air is unfiltered; therefore, it should not be used
during ground operation when dust or other contaminants might enter the
system. Filtered air should always be used for takeoff.
ISSUED: JUNE 1, 1978
DESCRIPTION & OPERATION
SECTION 7
REPORT: VB-910
7-3