Husqvarna 961430097 用户手册

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 rear drive wheels each time you mow to be sure they 
move freely.  The wheels not turning freely means trash, 
grass cuttings, etc., may be inside the drive wheel and dust 
cover area and must be cleaned out to free drive wheels.

If necessary to clean drive wheels, check both rear wheels.

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

TO REMOVE BLADE (See Fig. 12)
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).

6.    Remove debris shield.

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 damaged.

TO REPLACE BLADE (See Fig. 12)
1.    Position the blade adapter on the engine crank shaft. 

Be sure key in adapter and crankshaft keyway are 
aligned; and that the drive belt is inside the tabs of the 
belt retainer.

2.    Install debris shield.

3.    Position blade on the blade adapter.

IMPORTANT: TO ENSURE PROPER AS 

SEM BLY, CENTER 

HOLE IN BLADE MUST ALIGN WITH STAR ON BLADE 
ADAPTER.

4.      Be sure the trailing edge of blade (opposite sharp edge) 

is up toward the engine.

5.      Install the blade bolt with the lock washer and hardened 

washer into blade adapter and crankshaft.

6.      Use block of wood between blade and lawn mower hous-

ing and tighten the blade bolt, turning clockwise.

•      The recommended tightening torque is 35–40 ft. lbs.  

IMPORTANT:  BLADE BOLT IS HEAT TREATED.  IF BOLT NEEDS 
REPLACING, REPLACE ONLY WITH APPROVED BOLT SHOWN 
IN THE REPAIR PARTS SECTION OF THIS MANUAL.

TO SHARPEN BLADE (See Fig. 13)
NOTE:  We do not recommend sharp en ing blade - but if you 
do, be sure the blade is balanced.  An un bal anced blade 
will cause eventual damage to lawn mower or engine. 

•      The blade can be sharp ened with a fi le or on a grind-

ing wheel. Do not attempt to sharpen while on the 
mower.

•      To check blade balance, you will need a 5/8" diameter 

steel bolt, pin, or a cone balancer.  (When using a 
cone bal anc er, follow the in struc tions supplied with 
bal anc er.)

NOTE:  Do not use a nail for balancing blade.  The lobes of 
the center hole may appear to be centered, but are not.

•         Slide blade on to an unthreaded portion of the steel bolt 

or pin and hold the bolt or pin parallel with the ground.  
If blade is bal anced, it should remain in a horizontal 
po si tion.  If either end of the blade moves downward, 
sharpen the heavy end until the blade is balanced.