Husqvarna 7021F 用户手册

Maintenance, re pair, or re place ment of the emission con-
 trol de vic es and sys tems, which are be ing done at the 
cus tom ers expense, may be performed by any non-road 
engine repair es tab lish ment or individual. Warranty repairs 
must be performed by an authorized engine man u fac tur er's 
service outlet.

IMPORTANT:  IT IS IMPORTANT TO PREVENT GUM DEPOSITS 
FROM FORMING IN ESSENTIAL FUEL SYSTEM PARTS SUCH 
AS CARBURETOR, FUEL FILTER, FUEL HOSE, OR TANK 
DURING STORAGE. 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 letting 

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 stabilizer is an acceptable alternative in mini-
mizing the formation of fuel gum deposits during stor age.  
Add stabilizer to gasoline in fuel tank or storage container.  
Always follow the mix ratio found on stabilizer container.  
Run engine at least 10 minutes after adding stabilizer 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 engine oil.  
(See “ENGINE” in the Maintenance section of this manual).

1.    Remove spark plug.

2.    Pour one ounce (29 ml) of oil through spark plug hole 

into cylinder.

3.    Pull starter handle slowly a few times to distribute oil.

4.    Replace with new spark plug.

•      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 protective cover that 

does not  retain moisture.  Do not use plastic.  Plastic 
cannot breathe, which allows condensation to form and 
will cause your unit to rust.

IMPORTANT:  NEVER COVER MOWER WHILE ENGINE AND 
EXHAUST AREAS ARE STILL WARM.

Immediately prepare your lawn mower for storage at the end of the season or if the unit will not be used for 30 days or more. 

When lawn mower is to be stored for a period of time, clean 
it thoroughly, remove all dirt, grease, leaves, etc.  Store in 
a clean, dry area.

1.    Clean  entire  lawn  mower  (See  “CLEANING”  in  the 

Maintenance section of this manual).

2.    Lubricate as shown in Maintenance section of this manual.

3.   Be sure that all nuts, bolts, screws, and pins are se-

curely fastened.  Inspect   moving parts for damage, 
breakage and wear.  Replace if necessary.

4.   Touch up all rusted or chipped paint surfaces; sand 

lightly before painting.

You can fold your lawn mower handle for storage.

1.    Squeeze the bottom ends of the lower handle toward 

each other until the lower handle clears the handle 
bracket, then move handle forward.

2.    Loosen upper handle mounting bolts enough to allow 

upper handle to be folded back.

IMPORTANT:  WHEN FOLDING THE HANDLE FOR STORAGE 
OR TRANSPORTATION, BE SURE TO FOLD THE HANDLE AS 
SHOWN OR YOU MAY DAMAGE THE CONTROL CABLES.

•         When setting up your handle from the storage position, 

lower han dle will automatically lock into mow ing position.