Husqvarna 7021F 用户手册

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•      At least once a year, replace the spark plug, clean or 

replace air fi lter element and check blade for wear.  A 
new spark plug and clean/new air fi lter element assure 
proper air-fuel mixture and help your engine run better 
and last longer.

•      Follow the maintenance schedule in this manual.

1.    Check engine oil level.

2.    Check for loose fasteners.

Keep unit well lubricated (See “LUBRICATION CHART”).

IMPORTANT:   DO NOT OIL OR GREASE PLASTIC WHEEL 
BEARINGS.  VISCOUS LU BRI CANTS WILL ATTRACT DUST 
AND DIRT THAT WILL SHORT EN THE LIFE OF THE SELF-
LU BRI CAT ING BEARINGS.  IF YOU FEEL THEY MUST BE 
LU BRI CATED, USE ONLY A DRY, POW 

DERED GRAPHITE 

TYPE LUBRICANT SPAR INGLY.

Always observe safety rules when performing any main-
 te nance.

•      Keep tires free of gasoline, oil, or insect control chem-

 i cals which can harm rubber.

•      Avoid  stumps,  stones,  deep  ruts,  sharp  objects  and 

other hazards that may cause tire damage.

Check front drive wheels each time be fore you mow to be 
sure they move freely.

The wheels not turning freely means trash, grass cuttings, 
etc. are in the drive wheel area and must be cleaned to 
free drive wheels.

If necessary to clean the drive wheels, be sure to clean 
both front wheels.

1.    Remove hubcaps, locknuts and washers.

2.    Remove wheels from wheel ad just ers.

3.   Remove any trash or grass cuttings from inside the 

dust cover, pinion and/or drive wheel gear teeth.

4.    Put wheels back in place.

NOTE:  If after cleaning, the drive wheels do not turn freely, 
contact a qualifi ed service center.

For best results, mower blade must be kept sharp.  Re place 
bent or dam aged blades.

TO REMOVE BLADE (See Fig. 11)
1.    Disconnect spark plug wire from spark plug and place 

wire where it cannot come in contact with plug.

2.    Turn lawn mower on its side. Make sure air fi lter and 

carburetor are up.

3.    Use a wood block between blade and mower hous ing 

to prevent blade from turning when re mov ing blade bolt.

NOTE:  Protect your hands with gloves and/or wrap blade 
with heavy cloth.

4.    Remove blade bolt by turning counter-clockwise. 

5.      Remove blade and attaching hardware (bolt, lock wash er 

and hardened wash er).

NOTE:  Remove the blade adapter and check the key inside 
hub of blade adapter. The key must be in good condition to 
work properly. Replace adapter if dam aged.