Engine Cooling System; Spark Plugs - Husqvarna YTA19K42 Operator's Manual

ENGINE COOLING SYSTEM

To ensure proper cooling, make sure the grass screen,
cooling fins, and other external surfaces of the engine are
kept clean at all times.
Every 100 hours of operation (more often under extremely
dusty, dirty conditions), remove the blower housing and other
cooling shrouds. Clean the cooling fins and external surfaces
as necessary. Ensure the cooling shrouds are reinstalled.
NOTE: Operating the engine with a blocked grass screen,
dirty or plugged cooling fins, and/or cooling shrouds re moved
will cause engine damage due to overheating.

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.
MUFFLER
Inspect and replace corroded muffler and spark arrester (if
equipped) as it could create a fire hazard and/or damage.
IN-LINE FUEL FILTER (See Fig. 19)
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
MAINTENANCE
CLAMP
Fig. 19
CLEANING (See Fig. 20)
• 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
Avoid all pinch points and
Fig. 20