Air Cleaners; Oil Bath Air Cleaner; Dry Element Air Cleaner; Pre-Cleaner - Wisconsin vg4d Repair Manual

AIR CLEANERS
The air cleaner is an essential accessory, filtering
the air entering the carburetor and preventing abrasive
dirt from entering the engine and wearing out valves
and piston rings in a very short time.
The air cleaner must be serviced frequently, depend-
ing on the dust conditions where engine is operated.
Check hose connections for leaks or breaks; replace
all b~ken or damaged hose clamps.
Excessive smoke or loss of power are goodindications
the air cleaner requires attention.
The oil hath type air cleaner, illustrated in Fig. 5 is
standard equipment on power units. On open engines,
the oil bath air filter furnished is illustrated in Fig. 6.
A dry element air cleaner is optionally available for
both power unit and open engine.
OIL BATH AIR CLEANER (Fig. 5)
Service daily or twice a day;
very dusty conditions.
Once
tively clean conditions.
Remove oil cup from bottom
if engine is operating in
each week; in compara-
of air cleaner and clean
thoroughly, Add fresh oil to the level line indicated
on cup, using the same grade oil as used in engine.
Operating the engine under dusty conditions with-
out oil in the air cleaner or with dirty oil, may
wear out cylinders, pistons, rings and bearings in
a few days time, and result in costly repairs.
Once a year; or oftener in very dusty conditions, the
air cleaner should be removed from the engine and the
element, which is not removable, should be washed in
a solvent to clean out accumulated dust and dirt.
DRY ELEMENT AIR CLEANER
Service doily; squeeze rubber duct unloader once or
AIR
CLEANER
BOWL
OPTIONAL COLLECTOR
TYPE P RE-CLEANERS
AIR CLEANER
Fig. 6
twice a day to check for possible obstruction. If en-
gine is operating in very dusty conditions, remove
cartridge and shake out accumulated dirt.
Once each week; the filtering cartridge should be
taken out and either dry-cleaned with compressed air
or washed by repeated dipping for several minutes in
a solution of lukewarm water and a mild non-sudsing
detergent. Rinse in cold water from the inside out and
allow to dry overnight before installing.
Do not use gasoline, kerosene or solvent for
cleaning. - Do not oil element.
After ten washings or one year of service, whichever
comes first, replace cart.ridge.
PRE-CLE.&NER (Fig. 6)
The collector type pre-cleaner, mounted to the top of
the air cleaner, removes the larger dirt and dust
particles before the air reaches the main air cleaner.
Daily; clean bowl of accumulated dust and dirt. Do not
use oil or water in pre-cleaner. This must be kept dry.
~UEL VALVE.
BAIL
Fig. 5
Fig, 7
10