Husqvarna DRT900 - Manual (Page 14)

14
MAINTENANCE
Fig. 20
MUFFLER
Do not operate tiller without muffler. Do not tamper with
exhaust system. Damaged mufflers or spark arresters
could create a fire hazard. Inspect pe ri odi cally and re place
if nec es sary. If your engine is equipped with a spark arrester
screen assembly, re move every 50 hours for cleaning and
inspection. Re place if dam aged.
COOLING SYSTEM (See Fig. 20)
Your engine is air cooled. For proper en gine performance
and long life keep your engine clean.
• Clean air screen frequently using a stiff-bristled brush.
• Remove blower housing and clean as nec es sary.
• Keep cylinder fins free of dirt and chaff.
Cylinder Fins
Muffler
Air Screen
Blower
Housing
SPARK PLUG
Replace spark plugs at the beginning of each tilling sea-
son or after every 25 hours of use, whichever comes first.
Spark plug type and gap setting are shown in “PROD UCT
SPEC I FI CA TIONS” on page 3 of this manual.
TRANSMISSION
Your transmission is sealed and will not re quire lubrication
unless serviced.
CLEANING
Do not clean your tiller when the engine and transmission
are hot. We do not rec om mend using pressurized water
(gar den hose, etc.) to clean your unit un less the gasket
area around the trans mis sion and the engine muf fler, air
fil ter and car bu re tor are cov ered to keep wa ter out. Wa ter
in en gine will short en the useful life of your tiller.
• Clean engine, wheels, finish, etc. of all foreign matter.
•
Keep finished surfaces and wheels free of all gas o line,
oil, etc.
• Protect painted surfaces with au to mo tive type wax.