Spark Plugs; Clean Air Screen - Husqvarna YTH18542 Operator's Manual

ENGINE OIL FILTER
Replace the engine oil filter every season or every other
oil change if the tractor is used more than 100 hours in
one year.
NOTE: If needed, remove lower dash covers using steps
from "Lower dash cover removal" section of this manual.
AIR FILTER
Your engine will not run properly using a dirty air filter. Ser-
vice air cleaner more often under dusty conditions.

CLEAN AIR SCREEN

The air screen is over the air intake blower located on top
of engine. The air screen must be kept free of dirt and
chaff to prevent engine dam age from overheating. Clean
with a wire brush or compressed air to re move dirt and
stubborn dried gum fibers.
ENGINE COOLING SYSTEM (See Fig. 19)
Debris may clog the engine's air cooling system. Remove
blower housing and clean the area shown to prevent over-
heating and engine damage.
AIR SCREEN
MUFFLER
Inspect and replace corroded muffler and spark arrester (if
equipped) as it could create a fire hazard and/or damage.

SPARK PLUGS

Replace spark plugs at the beginning of each mowing
season or after every 100 hours of operation, whichever
occurs first. Spark plug type and gap setting are shown
in "PROD UCT SPECIFICATIONS" section of this manual.
MAINTENANCE
CLEAN OUT CHAFF AND DEBRIS
02744
Fig. 19
IN-LINE FUEL FILTER (See Fig. 20)
The fuel filter should be replaced once each season. If fuel
filter becomes clogged, ob struct ing fuel flow to car bu re tor,
re place ment is re quired.
• With engine cool, remove filter and plug fuel line sec tions.
• Place new fuel filter in position in fuel line with arrow
pointing towards carburetor.
• Be sure there are no fuel line leaks and clamps are
properly positioned.
• Immediately wipe up any spilled gasoline.
CLAMP
FUEL FILTER
CLEANING (See Fig. 21)
• Clean engine, battery, seat, finish, etc. of all foreign
matter.
• Clean debris from steering plate. Debris can restrict
clutch/brake pedal shaft movement, causing belt slip
and loss of drive.
CAUTION:
movable parts.
CLUTCH/BRAKE PEDAL
CLEAN
TOP SIDE
STEERING
PLATE
STEERING SYSTEM, DASH, FENDER AND MOWER NOT SHOWN
• Keep finished surfaces and wheels free of all gasoline,
oil, etc.
• Protect painted surfaces with automotive type wax.
Except for the washout port (if equipped), we do not
recommend using a garden hose or pressure washer to
clean the outside of your tractor unless the engine and
transmission are covered to keep water out. Water in
engine or transmission will shorten the useful life of your
tractor. Use compressed air or a leaf blower to remove
grass, leaves and trash from outside tractor and mower.
17
CLAMP
Fig. 20
Avoid all pinch points and
Fig. 21