McCulloch 532 43 21-09, Operator'S Manual

12

MAINTENANCE

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.

SPARK PLUG

Replace spark plugs at the beginning of each tilling sea-

 son or after every 50 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 require 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 mat-

ter.

• 

Keep finished surfaces and wheels free of all gas o line, 

oil, etc.

•  Protect painted surfaces with au to mo tive type wax.

Fig. 14

COOLING SYSTEM

(See Fig. 14)

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