Section 3Section 3
Air Intake SystemAir Intake System
C / C / / /C / C / / /
INDICATES AIR FLOWINDICATES AIR FLOW
COTTER PINCOTTER PIN
INTERNALINTERNAL
FILTERFILTER
INDICATORINDICATOR
SAFETYSAFETY
FILTERFILTER
WINGWING
NUTNUT
PRIMARYPRIMARY
FILTERFILTER
ASSEMBLASSEMBLYY
VACUATORVACUATOR
PRECLEANERPRECLEANER
CAPCAP
AIR AIR RESTRICTIONRESTRICTION
INDICATORINDICATOR
AIRAIR
CLEANERCLEANER
HOUSINGHOUSING
SAFETYSAFETY
FITTINGFITTING
IF EQUIPPEDIF EQUIPPED
SIGNALSIGNAL
LINELINE
IllustIllustration 3-1. ration 3-1. Air Intake SystAir Intake System Componentsem Components
Introduction.Introduction. The air cleaner is designed to beThe air cleaner is designed to be
servicserviced efficiented efficiently and quicklyly and quickly. . Intake air entersIntake air enters
the air cleaner through the cap or optional pre-the air cleaner through the cap or optional pre-
cleanercleaner. . When the air reaches the filtWhen the air reaches the filter bodyer body, a, a
helical ramp imparts a high-speed circular motionhelical ramp imparts a high-speed circular motion
to the intake airto the intake air. . This actThis action separates up to 85%ion separates up to 85%
of the dust from the aiof the dust from the air by centrir by centrifugal action. fugal action. TheThe
dust is then forcdust is then forced out the vacuatored out the vacuator. . The air thenThe air then
passes through the primary and safety elements,passes through the primary and safety elements,
where it is cleaned, before entering the engine.where it is cleaned, before entering the engine.
Major ComponentsMajor Components(Illustration 3-1)(Illustration 3-1).. The airThe air
cleaner consists of the primary filter element, inter-cleaner consists of the primary filter element, inter-
nal filter indicator, safety element, air cleanernal filter indicator, safety element, air cleaner
housing, cap (or optional precleaner), vacuatorhousing, cap (or optional precleaner), vacuator
and and an an air restrictiair restriction on indicatorindicator..
ServicingServicing(Illustration 3-1)(Illustration 3-1).. If the equipment isIf the equipment is
being operated under extremely dusty conditions,being operated under extremely dusty conditions,
the vacuator should be checked every day to bethe vacuator should be checked every day to be
certain it icertain it is not clogged. s not clogged. Perform tPerform the followinghe following
procedures to service the filter element and airprocedures to service the filter element and air
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