McCulloch 433691 Instruction De Maintenance

IMPORTANT: IT IS IMPORTANT TO PREVENT GUM DEPOSITS 

FROM FORMING IN ESSENTIAL FUEL SYSTEM PARTS SUCH 

AS THE CARBURETOR, FUEL FILTER, FUEL HOSE, OR TANK 

DURING STORAGE. ALSO, EXPERIENCE INDICATES THAT 

ALCOHOL BLENDED FUELS (CALLED GASOHOL OR USING 

ETHANOL OR METHANOL) CAN ATTRACT MOISTURE WHICH 

LEADS TO SEPARATION AND FORMATION OF ACIDS DURING 

STORAGE. ACIDIC GAS CAN DAMAGE THE FUEL SYSTEM 

OF AN ENGINE WHILE IN STORAGE.

• 

Empty the fuel tank by starting the engine and let it run 

until the fuel lines and carburetor are empty.

•  Never use engine or carburetor cleaner products in 

the fuel tank or permanent damage may occur.

•  Use fresh fuel next season.
NOTE:  Fuel stablizer is an acceptable alternative in mini-

mizing the formation of fuel gum deposits during storage. 

Add stabilizer to gasoline in fuel tank or storage container. 

Always follow the mix ratio found on stablizer container. 

Run engine at least 10 minutes after adding stablizer to 

allow the stabilizer to reach the carburetor.  Do not empty 

the gas tank and carburetor if using fuel stabilizer.

Drain oil (with engine warm) and replace with clean oil.  (See 

“ENGINE” in the Maintenance section of this man ual.) 

•  Remove spark plug.
• 

Pour 1 ounce (29 ml) of oil through spark plug hole into 

cylinder.

•  Pull starter handle slowly several times to distribute 

oil.

•  Replace with new spark plug.

• 

Unscrew (2) handle knobs and remove (2) carriage bolts.

•  Remove top handle assembly and place it in handle 

storage feature in transport arm.

•  Unscrew top or bottom handle knob and washer, and 

remove top or bottom carriage bolt.

•  Rotate entire handle assembly about carriage bolt 

(pivot point) and lay handle against engine shroud.

The tiller handle assembly can be modified to allow for a 

variety of storage positions outlined below.

• 

Clean entire tiller (See “CLEANING” in the Maintenance 

section of this manual).

•  Inspect and replace belts, if nec es sary (See belt re-

 place ment in struc tions in the Service and Ad just ments 

section of this manual).

• 

Lubricate as shown in the Maintenance section of this 

manual.

•  Ensure that all nuts, bolts and screws are securely 

fastened.  Inspect moving parts for damage, break age 

and wear.  Replace if necessary.

•  Touch up all rusted or chipped paint surfaces; sand 

lightly before painting.

Immediately prepare your tiller for storage at the end of the 

season or if the unit will not be used for 30 days or more.

•  Do not store gasoline from one season to another.  
•  Replace your gasoline can if your can starts to rust.  

Rust and/or dirt in your gasoline will cause problems.

•  If possible, store your unit indoors and cover it to give 

protection from dust and dirt.

•  Cover your unit with a suitable pro tec tive cover that 

does not retain moisture.  Do not use plastic.  Plastic 

cannot breathe which allows con den sa tion to form and 

will cause your unit to rust.

IMPORTANT:  NEVER COVER TILLER WHILE ENGINE AND 

EXHAUST AREAS ARE STILL WARM.